Method for closing bounded edentulous space
SUBSTANCE: space closure is staged: preparing two fibreglass pipes of a diameter of 1 mm having a length of a defect size. A ligature wire of a diameter of 0.250 mm is inserted into the fibreglass pipes. The fibreglass pipes are crossed over in the defect centre, and the ligature wire is hooked to form a figure of eight. Free ends of the ligature wire are fixed to dental brackets of abutment teeth. The fibreglass pipes are impregnated with a 5-Grade adhesive and polymerised with LED light. An individual artificial tooth is made of a photocomposite on the fibreglass pipes.
EFFECT: method enables providing higher quality of life in patients with bounded edentulous spaces, with partial primary and secondary adentia in the period of orthodontic treatment.
3 dwg, 2 ex
The invention relates to medicine, namely to the field of dentistry.
Included defects in patients with partial primary and secondary edentulous occur in orthodontic patients often enough, according to some authors, this figure reaches 20% (1). On the stages of the orthodontic treatment of various types of braces patients included defects with partial primary and secondary edentulous addressed the issue of creating and maintaining a place in the dentition. The lack of tooth in front is a significant aesthetic problem for most patients.
In the treatment of patients with the included defects with partial primary and secondary edentulous known method of orthodontic treatment using braces without defect closure. In this case, at all stages of treatment of the edentulous area remains open, which in turn requires no additional material costs (2).
The disadvantage of this method is the reduced quality of life caused by the violation of the aesthetics of the smile, the difficulty in pronunciation hissing sounds, patients Shepeleva", splash saliva through a defect during a call, patients reduced sociability may be formed of psychological complex of self-doubt.
There is a method of closure included defects of the part is but removable laminar dentures (3).
The disadvantages of this method for patients is a bulky device, because in the process of treatment, the size of the replaced defective constantly changing and fixing partly removable laminar denture is deteriorating. Patients experience discomfort when eating, fear about the loss of the denture from the mouth, which leads to reduced quality of life. If the patient is partially removable laminar denture for the doctor increases the number of visits associated with the relocation of the prosthesis.
There is also known a method of closing included defects in the dentition by using a standard artificial plastic teeth. Plastic tooth is determined by the size of the defect from the set of standard teeth, it is soldered to the bracket and the whole structure is fixed to the arc ligature wire for braces.(4)
The disadvantage of this design is that during operation of the artificial tooth is closely adapted to the gum and it quickly formed a bed sore. Under the action of chewing load an artificial tooth plays in the arc, damaging the soft tissue. An artificial tooth is difficult to find an ideal fit for the size of the defect and the color palette of the patient's teeth.
This method is used for the prototype.
The aim of the invention is to develop a way to close the party included defects in the dentition, to improve the quality of life of patients with enabled defects with partial primary and secondary edentulous during orthodontic treatment.
This goal is achieved by the fact that the closure of defect occurs in stages:
prepare two glass tubes with a diameter of 1 mm, the length corresponding to the size of the defect; fiberglass tube is placed ligature wire with a diameter of 0.250 mm; fiberglass tube cross in the center of the defect and ligature wire with one hand engages the node so that it turned out "eight"; the free ends of the ligature wire is fixed to the abutment teeth braces; fiberglass tube impregnated with an adhesive system of the fifth generation, are polymerized led lamp, on fiberglass pipes made of composite material is made of individual artificial teeth.
The method is accompanied by graphical material. The figure 1 shows two fiberglass tubes placed in them ligature wire that intersects and is fastened in the form of "eight"; the figure 2 diagram of the fixing fiberglass tubes with ligature wire for braces supporting teeth; figure 3 - scheme of production of individual artificial teeth, on fiberglass pipes, fixed for the Breck is s abutment teeth built ligature wire.
On the graphic material shown:
1 - fiberglass tube with a diameter of 1 mm, the length corresponding to the size of the defect;
2 - ligature wire with a diameter of 0.250 mm;
3 - abutment teeth;
4 - bracket;
5 - custom made artificial tooth.
The method is as follows.
The patient at the stage of orthodontic treatment using braces removed casts silicone mass. Before removing the braces and casts arc were insulated white protective orthodontics.com wax, except for the braces on the abutment teeth. After receiving copies of their quality assessment are cast model plaster. The abutment teeth are moulded from super plasters 3 class. The supporting teeth are the teeth, limiting defect in the dentition. The model is covered with an insulating varnish.
Prepare two glass tubes with a diameter of 1 mm, the length corresponding to the size of the defect. In the fiber-optic tube is placed ligature wire with a diameter of 0.250 mm Fiberglass tube cross in the center of the defect and ligature wire with one hand engages the node so that it turned out "eight". The free ends of the ligature wire is fixed to the abutment teeth braces. Fiberglass tube impregnated with an adhesive system of the fifth generation, polymeris who are led lamp. On the fiberglass tubes of composite material is made of individual artificial teeth.
Tailor-made artificial tooth corresponds in shape, size and color of the patient's teeth. With the help of the positioner depending on group membership tooth on tailor-made artificial tooth is fixed bracket on the flowable fotokompozitsionnogo material. Polishing is carried out with design.
In the oral cavity of a patient design prepassivate, is fixed to the abutment teeth braces integrated ligature wire through the bracket, depending on its design. If you are using ligiously bracket, the design is tied to an arc short ligature wire. If you are using self-ligating bracket, the arc is placed in the bracket slot and closes the cover bracket.
The technical effect of the invention is to improve the quality of life of the patient due to double fixation tailor-made artificial tooth using the built-ligature wire and bracket system, improves the aesthetics of a smile at the expense of defect closure tailor-made artificial tooth, the lack of fit design to the mucous membrane of the mouth during long wearing eliminates the trauma of the oral mucosa RT and facilitates the conduct of oral hygiene.
Example 1. Patient S., 25 years old, came to the clinic complaining of aesthetic disadvantage, diastema and Treme between the teeth. The difficulty in pronunciation hissing sounds. The patient experiences a lack of self-confidence when communicating with others. After the necessary diagnostic tests, the patient was diagnosed Natroalunite. Partial primary edentulous lateral incisors of the upper jaw. Included defects in the upper jaw. The patient was fitted with self-ligating braces, the Damon system 3. At the stage of orthodontic treatment in the process of creating space for the missing lateral incisors, defects in the dentition were closed using standard plastic teeth fixed on them braces. This design has been committed to an arc using the lock bracket. The patient was satisfied with the aesthetics. After a week of using this design, the patient began to experience pain in the area of fixed artificial teeth. The patient experienced discomfort while wearing this design, when biting food artificial tooth is moved on the arc and hurt the gums. The patient had experienced difficulties when performing oral hygiene, a tight fit of the artificial tooth to the gum prevented qualitative plaque removal and OS is Atkov food.
Objective: artificial teeth closely adjacent to the gum. Gums hyperemic, edematous, in place fit the artificial tooth to the gum identified erosion.
To improve the quality of life of the patient, we have produced individual artificial teeth with double locking system.
Closure of the defect occurs in stages: prepare two glass tubes with a diameter of 1 mm, the length corresponding to the size of the defect; fiberglass tube is placed ligature wire with a diameter of 0.250 mm; fiberglass tube cross in the center of the defect and ligature wire with one hand engages the node so that it turned out "eight"; the free ends of the ligature wire is fixed to the abutment teeth braces; fiberglass tube impregnated with an adhesive system of the fifth generation, are polymerized led lamp, on fiberglass pipes made of composite material is made of individual artificial teeth. With the help of the positioner on tailor-made artificial tooth is fixed bracket on the flowable fotokompozitsionnogo material. Polishing is carried out with design. In the oral cavity of a patient design prepassivate, is fixed to the abutment teeth braces integrated ligature wire and using the lock bracket.
P is ciento noted the improved quality of life, beginning more confident smile. This design is easy to use, the patient did not experience pain and discomfort, convenient holding of oral hygiene. When eating design is tightly fixed and does not move in an arc, which eliminates the trauma of the soft tissues of the oral cavity. This design is not adapted tightly to the gum and previously existing erosion quickly epithelials. The patient reported an improvement of diction and self-esteem. The patient continued to wear tailor-made artificial tooth after the implantation.
Example 2. Patient D., 20 years old, came to the clinic with complaints on the aesthetic disadvantage of anterior teeth, displacement of the middle line to the left and subulate right lateral incisor of the upper jaw. After the necessary diagnostic tests, the patient was diagnosed Natroalunite. Partial primary edentulous lateral incisors of the upper jaw on the left. The defect in the upper jaw. The displacement of the middle line on the upper jaw to the left. Subulate right lateral incisor. The patient had been installed ligature braces system Inspire ICE. At the stage of orthodontic treatment in the process of creating space for a missing lateral incisor on the left of the defect in the dentition was closed with the help of partial removable laminar denture. First the initial the patient was satisfied with this design, but after a month of wearing the distance between the teeth is increased and partial removable laminar denture began to subside. From that moment she began to constantly worry, fearing that the prosthesis may fall from the mouth.
To improve the quality of life of the patient, we have made individual artificial teeth with double locking system. Closure of the defect occurs in stages: prepare two glass tubes with a diameter of 1 mm, the length corresponding to the size of the defect; fiberglass tube is placed ligature wire with a diameter of 0.250 mm; fiberglass tube cross in the center of the defect and ligature wire with one hand engages the node so that it turned out "eight"; the free ends of the ligature wire is fixed to the abutment teeth braces; fiberglass tube impregnated with an adhesive system of the fifth generation, are polymerized led lamp, on fiberglass pipes made of composite material is made of individual artificial teeth. With the help of the positioner on tailor-made artificial tooth is fixed bracket on the flowable fotokompozitsionnogo material. Polishing is carried out with design. In the oral cavity of a patient design prepassivate, is fixed to the brackets supporting ubov integrated ligature wire and using a ligature wire for braces.
The patient reported an improved quality of life, her smile became more confident. This design is easy to use, well fixed in the oral cavity, the patient did not experience pain and discomfort. The patient reported an improvement of diction and self-esteem. When eating design is tightly fixed and does not move in an arc, which eliminates the trauma of the soft tissues of the mouth and loss of structures of the oral cavity. The patient continued to wear tailor-made artificial tooth after the implantation.
During orthodontic treatment significantly decreased the quality of life of patients. This is due to the wearing of orthodontic appliances, the pain and difficulties when performing oral hygiene. Reduction of self-esteem is celebrated in most orthodontic patients, but greater feelings experienced by patients with defects of dentition in the anterior. Closure included defect in the anterior stage of the treatment, first of all, improves the aesthetics of the smile and diction, and consequently, improves the quality of life of the orthodontic patient during treatment. Secondly, tailor-made artificial tooth with double locking system reduces the risk of injury to the mucous membranes of the oral cavity. It is also possible to binyavanga application opens spring with this design and fixation distances by increasing the width of the tailor-made artificial tooth addition of a composite material on approximal the surface of the artificial tooth. The use of tailor-made artificial tooth after surgery implantation exclude injury in the affected areas during the entire period of osseointegration of the implant.
The method is intended for closure included defects in the frontal section at stages of treatment of patients with partial primary and secondary edentulous braces and can be used in orthodontics and prosthodontics.
Sources of information
1. Persia PS Orthodontics. Diagnosis and treatment of dentofacial anomalies: a Guide for physicians. - M.: Medicine, 2007. - s.
2. Khoroshilkina FA Orthodontics. Defects of teeth, teeth, malocclusion, morphological and functional abnormalities in the maxillofacial region and their complex treatment. M: Honey. inform. the Agency, 2006. - 544 S.
3. Damon D. workbook orthodontist. - SPb., 2007. - S.
4. Proffit WR Modern Orthodontics. M., 2006. - 560 S.: ill.
How close is enabled defects in the dentition by closing the defect artificial tooth on a fixed bracket, wherein the closed defect occurs in stages: prepare two glass tubes with a diameter of 1 mm, the length corresponding to the size of the defect; fiberglass tube is placed ligature wire with a diameter of 0.250 mm; glass is laconnie tube cross in the center of the defect and ligature wire with one hand engages the node to get the "eight"; the free ends of the ligature wire is fixed to the abutment teeth braces; fiberglass tube impregnated with an adhesive system of the fifth generation, are polymerized led lamp, on fiberglass pipes made of composite material is made of individual artificial teeth.
SUBSTANCE: group of inventions relates to field of medicine, in particular to dentistry, and is intended for application in manufacturing dentures. Group of inventions represents set of artificial teeth, which includes: central and lateral incisors, canine, first and second premolars, first and second molars for upper and lower jaws. In claimed group of inventions in appropriate way determined are angles, formed by occlusal facets of artificial teeth with occlusal plane. For instance, artificial central incisor of upper jaw has protrusion facet and retrusion facet on its cutting edge. Of angles, formed by protrusion facet with occlusal plane, angle in section on sagittal plane constitutes from 22.0° to 25.5°, angle in section on front plane corresponds from 1.5° to 6.5°. Of angles formed by retrusion facet with occlusal plane, angle in section on sagittal plane constitutes from 20.5° to 23.0°, angle in section on front plane corresponds from 1.5° to 6.5°. Group also includes independent items, characterising each of said artificial teeth.
EFFECT: possibility to achieve bilateral balanced occlusion easily with small grinding of artificial teeth.
15 cl, 25 dwg
SUBSTANCE: invention relates to medicine, namely to orthopedic dentistry. Method of manufacturing detachable dental prostheses which contain rigid basis and elastic padding includes formation of elastic padding by manufacturing wax model by impression of part of oral cavity for which prosthesis is made, formation of wax model in flask by means of forming mass, removal of wax, formation of pour canals and pouring of composition for formation of elastic padding, which contains oligoalkylenepolyisocyanate, oligopolyatomic alcohol and catalyst; keeping flask for formation of elastic padding, formation of polyurethane rigid basis. For manufacturing of casting form packing plaster is used. For drying form from packing plaster and model from superplaster, used is convection oven for 35 minutes at temperature 270°C. Before pouring composition for formation of elastic padding, form from packing plaster and model from superplaster are installed on vibrotable, fixed, filled with composition, polymerised in convection oven for 30 min at 120°C. Removed out of form model from superplaster with elastic padding is installed into preliminarily prepared form from packing plaster with artificial teeth for casting detachable prosthesis, which is installed on vibrotable, poured with polyurethane composition for manufacturing rigid basis and polymerised in convection oven for 30 minutes at temperature 120°C.
EFFECT: increase of accuracy of teeth positioning in detachable dental prostheses, reduction of time of manufacturing detachable dental prostheses with elastic padding, reduction of detachable dental prosthesis cost.
SUBSTANCE: invention relates to field of medicine, namely to orthopedic dentistry, and can be used for manufacturing detachable dental prostheses. In manufacturing detachable dental prosthesis impression of part of oral cavity for which prosthesis is made is obtained, said impression is used for making wax model of part of oral cavity for which prosthesis is made with further formation of plaster model with wax composition in flask for free casting with application of forming mass from plaster. Artificial teeth are installed into forming mass corresponding to their imprints. Forming mass is kept until it hardens, wax is removed from flask by means of hot water, without extracting teeth. Plaster model and plaster flask are died in convection oven at temperature 170 degrees for 120 minutes. After plaster model drying and application of disconnecting lacquer plaster model and plaster flask are connected and composition is filled in. Composition contains diphenylmethane diisocyanate, polyatomic alcohol and catalyst. After composition polymerisation prosthesis is removed and finally improved.
EFFECT: increase of accuracy of teeth positioning, method simplification, reduction of time and cost of dental prosthesis.
SUBSTANCE: invention relates to medical equipment and is intended for cleaning of metal clasp frameworks, crowns and dental bridges from moulding mass after moulding. Method includes processing for 2-5 minutes in alkali-salt melt, which consists of sodium hydroxide and potassium chloride with the following component ratio, wt %: sodium hydroxide - 85-90; potassium chloride - 10-15.
EFFECT: reduction of clasp framework, crown and dental bridge etching; process efficiency due to application of cheaper and more available sodium hydroxide.
SUBSTANCE: invention refers to medicine, namely to orthopaedic dentistry, and can be used in making a removable denture with a rigid plate, including with using an elastic seat. The method involves moulding of a denture part of the oral cavity, structural wax modelling of a prospective denture on a dental cast, dental casting with using a wax model in a moulding tray with using a duplicating silicone as a moulding paste, curing of the moulding paste, opening of the tray after the duplicating mass is cured, elimination of the wax from the dental cast and formation of runners, drying and degreasing of the denture to be placed by moulds, drying of the dental cast and isolation of the dental cast with polyurethane varnish and dividing lubricant, placing of the denture by the cast moulds and assembling of the moulding tray, heating of the dental cast and the silicone mould with the denture, filling the tray through the runners with the components of polyurethane mixture based of diisocyanate and polyatomic alcohol to mould the rigid seat, heating and curing of the moulding tray with the filled polyurethane mixture, extraction of the denture with the rigid seat from the polyurethane mixture after cooling and opening of the moulding tray, removal of the runners and finishing of the end denture. In making the removable denture, the end dental cast is dried up in a microwave at power 300-700 watt within 10-15 minutes, the dental cast is covered with layers of the isolating polyurethane varnish with each layer dried at room temperature within 5 minutes, and final drying of the whole varnish coat in the microwave at power 70-100 watt within 5-10 minutes. The dental cast and the silicone mould with the denture are heated in the microwave at power 90-100 watt within 20-25 minutes. Filling of the moulding tray of the initial components of the polyurethane mixture is preceded with preheating of a vertically positioned two-module cartridge with the initial components in a thermal case at temperature 60-70°C within 40-60 minutes. The cartridge is cooled to room temperature for 30-60 minutes; the assembled moulding tray is put in a polymerisation reactor; a two-module cartridge with the initial components of the polyurethane mixture is inserted into a dispenser and, after discharge of the outlets of the two-module cartridge, a mixer is put on the cartridge, and a capacity of the moulding tray is filled with a thin stream of the polyurethane mixture to be discharged from counter-runners, and the filled moulding tray immediately placed in the polymerisation reactor is air-pressurised in a sealed polymerisation reactor at pressure 2 atm within 5 minutes without water filling of the internal capacity of the polymerisation reactor. Before disassembling, the filled tray is cured in the microwave at power 70-100 watt within 10-15 minutes, and in making the wax moulds, the runners of diametre 4-8 mm are used.
EFFECT: ensured process of the high-quality removable denture with sufficient modulus of transverse and longitudinal elasticity of the rigid seat, with sufficient Charpy impact, with ensuring the preset level of solidity of the rigid seat, prolonged operation life and simplified technological process.
5 cl, 3 ex
SUBSTANCE: group of inventions refers to dentistry and can be used for teeth restoration in orthopaedics. The dental product contains a pre-moulded tooth crown which has a self-supporting unified external form chosen from group, consisting of a cutter, a canine, a premolar and a molar; thus the unified external form contains a symmetry plane in the vestibular-glottic direction; and the pre-moulded tooth crown contains a hardening compound of plasticity sufficient to transform the unified external form into the left-sided specific or right-sided specific adjusted external form. By the second version, the dental product containing: the pre-moulded tooth crown which has the self-supporting unified external form chosen from group, consisting of a premolar and a molar with a generalised external form contains a symmetry plane as in the vestibular-glottic direction and mesio-distal direction. The group of inventions contains also a set including specified two versions of the dental products and a package containing specified set of the dental products.
EFFECT: possibility to adjust the pre-moulded tooth crown representing a tooth restored by a general practitioner to accelerate the recovery process.
27 cl, 11 dwg
SUBSTANCE: group of inventions relates to field. Dental prosthesis contains holders (3, 4) for fastening to nearest tooth (8), inserted element (7), made incorporated with holders, enveloping element (6) made as one whole with artificial tooth (5) and having cut (6a) for introduction into it of inserted element, allowing to restore or provide defective tooth functioning, in which holders (3, 4) have such form, that, in fact, surround nearest tooth and are modeled in compliance with initial profile of nearest tooth (8) surface, obtaining the same surface profile as nearest tooth (8). Holders are fastened to nearest tooth without its grinding. Method of dental prosthesis manufacturing contains following steps: duplication of initial model is carried out; wax-model of duplicated model is made; gate is installed on duplicated model, when duplicated model is in wax; and duplicated model is packed, burned and flooded.
EFFECT: invention can be applied for restoration of lost tooth.
14 cl, 37 dwg
SUBSTANCE: cast not non-disposable model entirely including its socle part on a working print from a supergypsum, preliminary having carried out the print preparation, consisting that a peridental zone in a print round prints of all basic teeth - a zone round a print of a dissected basic tooth, circulary fill in with wax or silicon mass for an artificial gum, after casting of not non-disposable model spend casting of non-disposable model, applying a technique of manufacturing of the combined model. Model the wax preparation of the future monoblock skeleton of a bridge-like prosthesis on non-disposable model. After the end of modelling of the skeleton, separate it on fragments depending on a clinical situation, also transfer them with non-disposable on not non-disposable model. On not non-disposable model spend bond of fragments among themselves by means of wax or plastic for interdental intersections after that on the received wax composition establish the funel-creating pegs forming a funnel system. Take out the ready funnel system together with a wax composition of the skeleton of a bridge-like prosthesis from model and place in a ditch for casting from an alloy necessary for the future bridge-like prosthesis, fill the ditch with fire-resistant packing mass, melt the wax composition in a muffle furnace and spend casting of the skeleton from the fused alloy to the obtained form. After skeleton casting first spend try-in of every basic element of the skeleton - crowns to the corresponding stamp - the tooth from non-disposable model, then carry out try-in of the whole skeleton on the non-disposable model.
EFFECT: rising of accuracy of manufacturing of the monoblock skeleton of fixed tooth prostheses that excludes development of undesirable complications.
SUBSTANCE: on a supergypsum working print cast an entire non-disposable model, including its socle part, preliminary having carried out the print preparation, consisting that in a print round prints of all basic teeth - a zone round a print of a dissected basic tooth fill in a peridental zone with wax or silicon mass circularly for an artificial gum. After casting of the non-disposable model, spend casting of non-disposable model, applying a technique of manufacturing of the combined model. On a non-disposable model, model wax preparation of the future monoblock skeleton of the bridge-like prosthesis, split the obtained wax skeleton with the thin instrument in the field of interdental intersections on fragments, check their accuracy on not non-disposable model, on each fragment attach a funnel system and spend their casting. After casting of their fragments fit for what at first make a try-in of each basic element of the crown skeleton to corresponding stamp - to a tooth from non-disposable model, then carry out a try-in of the skeleton fragment on a non-disposable model. Then spend a soldering of the received fragments to a uniform skeleton by means of solders, spending preliminary bond of fragments by means of laser welding on a primary non-disposable model.
EFFECT: increase of accuracy of manufacturing of a monoblock skeleton of fixed tooth prostheses that excludes development of undesirable complications.
FIELD: medical equipment.
SUBSTANCE: the invention refers to biocompatible wearproof nanostructure thin-film materials on the basis of titan carbonitride, used as membranulas for manufacturing imlants, working under load. Total concentration of the basic and additional elements in a covering has the following ratio: where Xi - total concentration of basic elements Ti, Ta, C, N in the covering, Yj - total concentration of additional elements Ca, Zr, Si, K, Mn, O, P in a covering, concentration of elements in the covering being chosen at the following ratio of components, at.wt%: Ti - 30-50; Ta 6-50; C - 15-40; N - 0-35; O - 5-25; Ca - 0-7; Zr - 0-20; Si - 0-30; P - 0-1.5; Mn - 0-1.0; K - 0-1.0.
EFFECT: high hardness of covering; low elasticity module; high durability of coupling with a substrate; low factor of friction and rate of deterioration; high firmness to elastic deformation of destruction and plastic deformation; low roughness of the surface; negative charge of the surface in physiological mediums; bioactive surface; biocompatibility and absence of toxicity.
16 ex, 1 tbl
SUBSTANCE: invention refers to dentistry and is applicable for orthopaedic rehabilitation of patients with completely absent dentition. A removable denture consists of a basis made of a rigid polymer dental product with fixed false teeth, and an elastic part adjoining a prosthetic bed. Trough-shaped grooves 1 mm deep divergent radially from the centre and extending onto a vestibular surface of the denture within a transient fold into a right-angled chamfer along the perimeter of the denture are formed on the basis from an internal side facing the prosthetic bed.
EFFECT: invention provides the higher adhesion strength of the soft pad and the rigid carrier of the basis, its uniform distribution along the surface of the prosthetic bed, as well as a possibility of re-use of the denture if the physical-mechanical characteristics of the elastic part occurred to be disturbed.
SUBSTANCE: invention refers to veterinary science, namely to prosthodontic treatment, and is applicable in making removable nylon prosthesis for the upper front teeth, including high-crown ones, such as pointed teeth. Both jaws are impressed. Master moulds are cast of die stone. Working and additional models are placed into an occludator. A future prosthesis is delineated on the working model. A wax basis is made of a wax plate. A tooth is moulded in wax, mounted in a tray and placed in boiling water. The wax is extracted and replaced by acryl. After removing, the acryl tooth is processed and polished. A socket is drilled in a base of the acryl tooth. At least two through canals are drilled from the socket above a gingival level on a palatolateral and palatomedial tooth surface. A shallow notch is made a little above the socket bottom on the outside along the whole circular length with using a ball-shaped bur. The artificial tooth with retention canals and peripheral notch is aligned with a bite and mounted on the wax basis. After the tooth is arranged, an incisal-tooth-gingival rest is moulded. The model is prepared for casting in the tray, and the teeth that can be used as retention points are ground off. The model is cast in a lower portion of the tray. Before the upper portion of the tray is cast, a gate system is mould of wax. Both portions of the tray are coupled together and bolted up. Dental stone setting up is followed by unscrewing and placing in boiling water for 10 minutes. The tray is opened, residual wax is washed out with hot water, and mould and counter-mould surfaces are processed with a divisional polish. After the division polish dries, the tray portions are connected and screwed. The prepared tray is inserted into a heated injection machine, wherein nylon under pressure fills all the retention canals of the tooth extending in the cone bells, encloses and crimps the notch along the periphery. Further, the tray is removed from the injection machine. The tray is left at a room temperature for 20 minutes and then placed in cold water until cooled completely. After the tray is opened, the prosthesis is removed, cleaned from dental stone, processed and polished. The prosthesis is applied into an animal.
EFFECT: method enables making the removable nylon prosthesis of the upper front teeth in dogs, including high-crown teeth, such as pointed teeth by creating special retention canals and peripheral notches in the acryl tooth.
4 cl, 9 dwg
SUBSTANCE: rigid splint recording of the lower jaw position in relation to the upper jaw is prepared on a denture of one of the jaws. A surface of the recording splint is adjusted in relation to the denture surface of the other jaw. The patient is adapted to the optimum position of the jaws for at least two months to achieve a symmetrical position of heads of the maxillotemporal joints. The jaw casts are mounted in a regulated articulator with the use of an occlusion splint recording the jaw position to be thereafter removed, and a space for mounting prosthetic structures is formed. The optimum position of the heads of the maxillotemporal joints is determined by multispiral computed tomography findings, at least twice. For the first time - prior to the prosthodontic treatment, for the second time and further - upon completion of optimising the lower jaw position in relation to the upper jaw, and further - after the temporary fixation of the prosthetic structures in the patient's oral cavity.
EFFECT: method enables creating the optimum positions of the heads of the lower jaws in the maxillotemporal joints by using an occlusion splint as the maximum occlusion recorder.
4 cl, 1 ex, 10 dwg
SUBSTANCE: proposed alloy contains the following components in wt %: carbon - 0.36-0.55, silicon - 0.7-2.5, manganese- 0.25-1.00, chromium - 27.5-30.5, molybdenum - 3.5-6.0, tungsten - 0.55-1.55, boron - 0.03-0.10, nickel - not over 0.5 and iron - not over 0.3 Note here that total amount of molybdenum and tungsten does not exceed 4.5-7.0.
EFFECT: higher strength and lower melting point, sufficient linear expansion factor, antirust properties, machinability.
SUBSTANCE: milled occlusal template for the reproduction and formation of occlusal denture contacts in making single and/or crown fixed dentures by computed milling of an ash-free plastic pieces by optic impression immediately with wax dental reconstruction with the occlusal contacts. The occlusal contacts are modelled using an articulator including the occlusal relations of the centric and excentric contacts. A lower border of the milled occlusal template is specified at the level of an equator. An internal surface of the template matches with an occlusal surface of the wax teeth. The occlusal template consists of two equal halves coupled longitudinally to visualise and facilitate the restoration.
EFFECT: invention enables the accurate representation of the modelled occlusal dental surface to be reproduced in the dental restoration.
SUBSTANCE: invention refers to medicine, particularly to dentistry and applicable in making removable dentures, obturators and maxillofacial components. The method consists in the fact that depending on the quantitative content of gold and silver components, 99.99% or 75% pure gold or a gold alloy in the form of a foil, powder flocks of the thickness of 1 mcm (micrometre) to 8 mcm is taken; further a portion required for making a modified dental plate, an obturator or a maxillofacial prosthesis is separated on weight basis in the ratio of 300:1, wherein 300 is a weight part of acrylic plastic or silicone, while 1 is a weight part of gold and its alloys. Alternatively, the ratio can be varied with an increase or decrease of a portion of gold and its alloys in the modified acrylic or silicone material. Thereafter, the acrylic or silicone components are mixed thoroughly with the gold or alloy component, and mould into a prepared flask with a dental prosthesis, and polymerised by a traditional approach.
EFFECT: invention provides eliminating the patient's discomfort in the mouth cavity, reducing a microbial adhesion to the dental plate, as well as promotes the epithelisation of mucosal injuries of the prosthetic bed.
SUBSTANCE: invention relates to the field of medicine, namely, prosthetic dentistry, and is designed to protect the vestibule of the oral cavity and the dentitions for the period of training and competitions. Individual sports teeth splint is made of elastic plastic. The splint covers the superior jaw dentition, hard palate and the vestibular slope of the alveolar ridges. On the lower jaw to the height of contour, the splint overlaps only the side groups of teeth of the lower jaw. The front part of the splint is manufactured with a height of 2 mm - 4 mm shorter than the distance of the patient physiological rest.
EFFECT: invention enables to create conditions for mouth breathing and smooth taking of liquid by creating of respiratory clearance between the splint front part and the cutting edge of the front group of the teeth of the lower jaw.
SUBSTANCE: invention relates to dentistry and is intended for application in orthopedic and therapeutic dentistry. Gypsum models of patient's jaws are made. Biomechanics of lower patient's jaw movements is studied. Angles of sagittal and transversal joint paths of patient are determined. Obtained values are marked on scale of joint units of articulator, which imitates individual movements of patient's lower jaw. Gypsum models are placed in claimed apparatus and ceramic thin half-crowns are modelled on them under constant control of interaction of dentitions and articulation contacts, proper to patient. Preparation of teeth before application of prosthesis according to method includes grounding off sharp enamel crests and processing teeth surface by airbrasive machine with powder with size 50 mcm under pressure 20 atm until dull surface of enamel appears.
EFFECT: method makes it possible to reduce trauma and preserve viability of teeth with prosthetic appliance due to elimination of preparation of hard tissues of said teeth.
2 dwg, 1 ex
SUBSTANCE: invention refers to medicine, namely to dentistry and may be used in the orthopaedic treatment of the patients with partial and/or complete denture defects using removable laminar dentures. A method involves making the removable laminar dentures, taking the oral hygienic measures, cleaning the removable laminar dentures. Ozonised olive oil is applied on an internal surface of the prosthetic basis that is followed by applying the prosthesis on the denture defect for 10-30 minutes. The prosthesis with ozonised olive oil applied on the internal surface of the basis is attached once a day for 8-16 days.
EFFECT: method provides more effective patient's adaptation to the removable laminar dentures due to the polycomponent mechanism of ozonised olive oil in the same environment with no negative side effects.
2 ex, 2 dwg
SUBSTANCE: invention refers to medicine, namely dentistry, and aims at the prosthetic dentistry quality assessment. High-viscosity elastomer 0.5-0.6 cm3 that is a basic layer A of Silagum Putty silicone is divided into two equal portions and placed on occlusal surfaces of the patient's fifth and sixth lower prosthetic teeth on the right and left. The patient is asked to occlude the teeth for 3-4 seconds. The test result is considered to be positive if the prosthesis keeps on the lower alveolar process once the mouth is opened. If the prosthesis is retained by the material at the upper teeth, the test result is considered to be negative.
EFFECT: method enables obtaining the objecting data of the complete denture attachment to prosthetic bed due to the visual assessment of the test result.
FIELD: medical engineering.
SUBSTANCE: method involves producing an opening of diameter reaching 2 mm with diamond or hard alloy bore in adhesive cover after preparing abutment tooth and prosthesis or widening already available perforation also to diameter of 2 mm. The prosthesis is set on the abutment tooth and place is marked for creating and directing pin-canal in the area of cutting one-third of the frontal abutment tooth or in the lateral abutment tooth equator area. The pin-canal direction is to correspond to path for introducing the prosthesis. The pin is screwed-in with screwdriver and holder to a depth of about 2 mm into dentin. The prosthesis is set on the abutment for making control. The pin is filed-off to adhesive cover layer after having fixed the prosthesis on composition cement.
EFFECT: prolonged service life; high functional value.