Method for making temporary fixed dentures
SUBSTANCE: odontopreparation is followed by impression taking. A dental model is injected into cast. Anatomic forms of retainer teeth is restored in wax, and an intermediate part of the prosthesis is modelled. The cast model is imprinted in silicone. The teeth are prepared. A reinforcing fibre tape is prepared. A segment of fibre tape impregnated with universal adhesive is placed on the teeth along the full length taking into account a profile of the masticatory surface up to an equator. The prepared segment is fixed on the teeth with the universal adhesive by polymerisation in halogen light. Self-hardening plastic is placed into the silicon impression to be inserted into the oral cavity. After the plastic is self-polymerised, the impression together with the denture is removed from the oral cavity. The denture is removed from the impression and polymerised additionally within its intermediate portion.
EFFECT: by reinforcing the denture with the fixed reinforcing fibre tape, the method enables increasing durability of the temporary denture, making the temporary denture at one visit and maintaining its aesthetic properties.
1 dwg, 2 ex
The invention relates to medicine, namely to prosthetic dentistry and is intended for the manufacture of temporary plastic dentures.
A known method of manufacturing a temporary non-removable dentures , by removing the seal to the tooth drilling, casting plaster model, the recovery model of the intermediate portion of the prosthesis with the use of selected and adapted to the toothless gap produced dentures, get the impression with plaster models, training retention points on the clothing teeth, preparation of the patient's teeth, overlay print with false teeth and a self-hardening plastic on the prepared teeth.
The disadvantages of the method are:
1) insufficient durability of bridge structures under conditions of increased load due to the presence of compounds prepared false teeth and prepared test self-hardening plastic material, and also due to the lack of reinforcement;
2) the technical complexity of the procedure of fitting false teeth.
There is also known a method of manufacturing a temporary bridges  by the preparation of the abutment teeth, getting the impression and plaster working model, modeling wax prosthesis construction, obtaining a silicone mold of the model, the preparation of a fiber ribbon in accordance with the length of the prosthesis, for the filling up of the imprint of the self-hardening plastic, space in the impression of the prepared cut fiber ribbon overlay print with fiber tape on the teeth.
The disadvantages of this method are:
1) laboratory technical phase of the prosthesis;
2) non-fixed position of the reinforcing fiber ribbon imprint, with the possibility of displacement;
3) the need for pre-production of another temporary bridge for the period of manufacturing the prosthesis increased strength and, consequently, more expensive prosthetics.
As the closest analogue (prototype) the selected method of manufacturing a temporary prostheses  by removing the seal to odontophoridae, casting plaster model on the recovery model, wax anatomical shape of the abutment teeth and modeling intermediate portion of the prosthesis, subsequent odontophoridae, impressions from the trained model and applying the obtained print, quick-filled plastic on the prepared teeth.
The disadvantage of the closest analogue is the poor durability of temporary bridges in terms of long-term performance and increased load due to the absence of reinforcement, the reinforcing structure.
The objective of the invention is to achieve a high strength of the temporary bridge is ratesa in terms of long-term performance and increased load on the abutment teeth.
The technical result is an increase in strength of the temporary prosthesis due to the reinforcement, the possibility of fabrication of temporary restorations in one visit and the preservation of its aesthetics due to the fixed position of the reinforcing fiber tape.
The problem is solved due to the fact that in the method of manufacturing a temporary non-removable dentures, including tacking up odontophoridae, casting plaster models, recovering to model wax anatomical shape of the abutment teeth, the modeling of the intermediate portion of the prosthesis, getting a silicone impression material with a plaster model of the teeth preparation and the subsequent imposition on the prepared teeth of the received print filled with self-hardening plastic, semipolitical plastic, removing the stamp from the denture from the mouth, the processing of the temporary prosthesis and fixation of his teeth has the following differences: 1) on the teeth after preparation install impregnated universal adhesive segment fiber tape along the length of the prosthesis, 2) record prepared by the cut on the teeth universal adhesive due to the polymerization of halogen light.
The essence of the proposed method is as follows:
1. Doctor to odontophoridae removes the stamp from the jaws of any elastic impression material./p>
2. Cast plaster model, on the model of the dental technician restores wax anatomical shape of the abutment teeth and simulates the intermediate portion of the temporary bridges.
3. With a trained dental technician wax prosthesis construction, the physician receives a silicone impression.
4. Prepare the abutment teeth.
5. The doctor prepares a reinforcing fiber tape: trims with scissors cut fiber tape along the entire length of the prosthesis with the terrain of the abutment teeth.
6. Fiber tape impregnated with svetacvetik universal adhesive.
7. Impregnated fiber tape - Fig.1(a) impose on the dried abutment teeth - Fig.1(b) and polimerizuet adhesive on the teeth halogen light for 20 seconds on each tooth.
8. In the existing silicone impression put self-hardening plastic and put it in the mouth.
9. After semipolitical plastic impression together with the prosthesis is removed from the mouth.
10. The prosthesis is removed from the impression and additionally polimerizuet halogen light 60 seconds in the area of the intermediate part.
11. The prosthesis is grinded and polished.
12. The doctor notes ready temporary plastic prosthesis in the oral cavity temporary cement.
Between the set of essential features of the claimed object and achievable technical result there is a causal the link, namely: 1) the introduction of fiber tape in the construction of temporary bridges made of self-hardening plastic increases the bending strength compared with the prosthesis without fiber ribbon 1.54 times (for a prosthesis, made of bisacrylamide composite plastic) and 1.94 times (for a prosthesis, made of polymetylmetacrylate plastic). This is due to the effect of reinforcement plastic durable fiber by chemical bonding acrylate plastics and impregnating the fiber universal adhesive with a chemical matrix BIS-glycidylmethacrylate and mechanical adhesion of particles of the plastic test with a maze of fiber tape. 2) Aesthetics temporary prosthesis, made of self-hardening plastic, does not deteriorate in the case of the protrusion of the fiber tape out, and continues thanks to the precise positioning of the fiber tape impregnated svetacvetik universal adhesive, after curing halogen light.
Enablement of the claimed invention is shown in the following examples.
Clinical example 1.
Patient Y., 22 years old, appealed to the orthopedic Department of the dental clinic with complaints on the aesthetic disadvantage and difficulty biting food and a speech defect tie in the loss of the front lower teeth as a result of injury.
Objectively there is a lack of teeth 42, 41, 31, 32. Fangs, limiting the edentulous area, pulpless, steady.
Diagnosis: partial loss of teeth (the defect in the anterior lower dentition).
Treatment plan: to make a temporary bridge prosthesis with support of the teeth 43 and 33 with the subsequent replacement of the temporary prosthesis permanent (metal).
Was shot, the print with the lower jaw alginate material. After casting a plaster model of the dental technician modeled wax intermediate portion of the temporary bridges. The doctor removed the silicone impression from the trained model. After preparation of the lower canines under artificial crowns doctor prepared reinforcing glass: compartment scissors cut steklolenta along the entire length of the future prosthesis from the distal surface of the left canine to the distal surface of the right canine. Glass was impregnated on glass svetacvetik universal adhesive. After drying of the abutment teeth tape was placed over the teeth 34 and 33 and polymerizable adhesive on the teeth halogen lamp. Checked the stability of the provisions of steklolenta. Available silicone impression in the area of the future prosthesis was filled with self-hardening bis-acrylic composite plastic and introduced into the oral cavity. After semipolitical plastic is thick was put together with the denture from the mouth (reinforcing glass moved to the prosthesis). The prosthesis was placed in warm water for 5 minutes, removed from the impression and additionally polymerizable halogen light in the area of the intermediate part. The prosthesis was ground, polished, and then fixed with temporary cement on the teeth 43 and 33. The patient was scheduled for the beginning of the restoration of the permanent prosthesis in a week.
Clinical example 2.
Patient X., 49 years old, came to the clinic of orthopedic dentistry with complaints of difficulty in chewing of food in the absence of the two lateral teeth on the upper jaw. Teeth lost due to complicated caries.
Objectively there is a lack of teeth 16 and 15. The teeth 17, 14 and 13 vital. The teeth 17 and 13 are stable; 14 - first degree of freedom.
Diagnosis: partial loss of teeth (the defect in the lateral part of the upper dentition). Traumatic occlusion.
Treatment plan: to make a temporary bridge prosthesis with support of the teeth 17, 14 and 13, followed by the replacement of the temporary prosthesis is permanent (metal).
After receiving alginate impression with the upper jaw dental technician was cast plaster model and todeliver wax intermediate portion of the temporary bridges. From the trained model was obtained a silicone impression material. After preparation under infiltration anesthesia three reference zubo the doctor prepared reinforcing glass: compartment scissors cut steklolenta along the entire length of the future prosthesis from the distal surface of the molar to the mesial surface of the canine with regard to the repetition of relief chewing surfaces of the teeth to the equator. Glass was impregnated on glass svetacvetik universal adhesive. After drying of the abutment teeth tape was placed over the teeth 17, 14 and 13 and polymerizable adhesive on the teeth halogen lamp (on each tooth separately). Checked the stability of the provisions of steklolenta. Available silicone impression in the area of the future prosthesis was filled with self-hardening acrylic plastic and introduced into the oral cavity. After semipolitical plastic imprint was launched together with the denture from the mouth (reinforcing glass moved with the teeth in the denture). The prosthesis was placed in warm water for 5 minutes, removed from the impression and additionally polymerizable halogen light in the area of the intermediate part. The prosthesis was ground, polished, and then fixed with temporary cement on the teeth 17, 14 and 13. The patient was scheduled for the beginning of the restoration of the permanent metal construction in a month.
Sources of information
 EN (11) 2286745 (13) C1. Publication date: 2006.11.10. A method of manufacturing a temporary non-removable dentures.
 Terry D., Geller Century Aesthetic and restorative dentistry. - Moscow, St. Petersburg, Kiev, Almaty, Vilnius: Alphabet, 2013, S. 318-371.
 EN (11) 2355354 (13) C2. Date p is blikali: 2006.01. A method of manufacturing a temporary prosthesis.
A method of manufacturing a temporary non-removable dentures, including tacking up odontophoridae, casting plaster models, recovering to model wax anatomical shape of the abutment teeth, the modeling of the intermediate portion of the prosthesis, getting a silicone impression material with a plaster model of the teeth preparation and the subsequent imposition on the prepared teeth of the received print filled with self-hardening plastic, semipolitical plastic, removing the stamp from the denture from the mouth, the processing of the temporary prosthesis and fixation of his teeth, wherein the teeth after preparation set the length of the prosthesis, taking into account the repetition of relief chewing surfaces of the teeth to the equator, impregnated universal adhesive segment fiber tape, fix prepared cut on the teeth universal adhesive due to the polymerization of halogen light.
SUBSTANCE: invention refers to medicine, particularly to dentistry, and can be used in orthopaedic dentistry for oncologic patients. A removable resection upper jaw denture with a myogymnastic element comprises an immobilising and resection portions and a removable myogymnastic element. The immobilising portion is configured in the form of a fixing plate having a clasp fixation system on the rest teeth. The resection portion is provided with artificial plastic teeth, contacts directly the rest upper jaw tissues and form a prosthetic bed for a permanent denture. The myogymnastic element is configured in the form of an orthodontic wire individually curved for each patient and having various cross-sections with a bead of a variable diameter sliding along the orthodontic wire. Plastic deposits are made in a base in attachment points of the myogymnastic element. The orthodontic wire is fixed by tension into blind canals.
EFFECT: invention enables combining the dental prosthetics and correction of postoperative tongue dysfunction in the oncologic patients.
SUBSTANCE: group of inventions refers to medicine, is applicable in dentistry and involves a method for preparing a dental instrument, the dental instrument configured to be used by a dentist, a set of pads to be used by the dentist (versions) and a method for the tooth preparation for treatment (versions). A method for making the dental instrument comprising the pad and configured to be used by the dentist; the instrument has at least one dental cutting instrument used for the tooth structure extraction, involves the stages: detecting the pad sized after the above tooth and after at least a portion of an adjacent tooth; modelling the pre-detected horizontal, vertical and inclined motions, which are supposed to be repeated by at least one dental cutting instrument to extract at least a portion of the detected portion of the tooth to be extracted; detecting the first and second guide edges inside the pad; making the above detected pad with the above first and second guide edges. The above first guide edge corresponds to the above pre-detected horizontal, vertical and inclined motions. The second guide edge inside the pad is remote from the first guide edge at a distance d. The second guide edge corresponds to the above pre-detected horizontal, vertical and inclined motions. The first and second guide edges are thereby presented to contact the dental cutting instrument to direct its horizontal, vertical and inclined motions in accordance with the pre-detected horizontal, vertical and inclined motions to remove at least the above portion of the pre-detected portion of the tooth to be extracted.
EFFECT: group of inventions enables providing the accurate tooth treatment for the following stage of treatment both by experienced and inexperienced dentists.
21 cl, 8 dwg
SUBSTANCE: invention refers to medicine and is applicable in treating lower molars with destruction in root bifurcation. Laboratory and radiographic examinations of an involved tooth are performed. A crown-radicular separation is followed by introducing an osteotropic material. Residual dental stumps are prepared for whole-piece crowns. A working impression of the lower jaw and an auxiliary impression of the upper jaw are made. The whole-piece crown with a washing space surrounding the separated bifurcation is made. It is fixed on dental cement.
EFFECT: method ensures the integrated treatment involving surgical and orthopaedic interventions and enables preserving the dental functions and restoring its anatomical shape.
SUBSTANCE: invention refers to medicine, particularly to orthopaedic dentistry, and can be used for partial laminar and clasp prostheses. A clasp system for fixing a removable partial denture of a single tooth consists of a basis with artificial teeth and a denture clasp. One end of the clasp comprises a mechanical device consisting of an inner O-ring abutment and an outer matrix and configured as a pivot, while the other end comprises a clasp seat in a rigid socket on an artificial dental crown. The outer matrix is fixed in the prosthesis basis and detachable together with the prosthesis, while the inner O-ring abutment is ball-shaped and connected to a clasp arm. The seat of the clasp socket is mounted on the artificial dental crown vertically or horizontally either from the lingual, or palatal, or approximal surface.
EFFECT: invention enables providing a more stable fixation of the detachable clasp system, a masticatory effectiveness and an appearance, and also avoiding the negative effect on the parodontium.
3 cl, 12 dwg, 3 ex
SUBSTANCE: group of inventions refers to medicine, namely to dental orthopaedics, and aims at developing a physical or virtual dental model as a supplement for making a dental implant. The method involves imaging upper and lower jaws, a motion field of the temporomandibular joint in disclusion, a contact region of the teeth in occlusion and in an extensive field of motion. A path of travel between the lower and upper jaws is calculated. Making the dental implant is ensured by using a fastening device taking into account the patient's diagnostic information, comprising the fastening device with a lower part and an upper part movable in relation thereto. The upper part represents the upper jaw, while the lower part is the lower jaw. Three-dimensional digital data of the lower and upper jaws, as well as occlusion in the central position are taken into account to calculate the motion and limitations fields of the jaws in relation to each other.
EFFECT: by using the individual patient's data, the group of inventions enables the temporomandibular joint compliance, developing the supplementary model providing the substantial saving of consumable materials and reducing the time for developing the physical and virtual dental model.
19 cl, 5 dwg
SUBSTANCE: invention relates to field of medicine, in particular to dentistry, and can be applied for orthopedic dental rehabilitation of oncologic patients with post-operation defects of upper jaw and dentitions. Disconnecting post-operation dentoalveolar prosthesis of upper jaw for formation of prosthetic bed in the section of performed operation and initial impact for epithelisation of defect boundaries contains basis, scar ring former, retention elements and artificial teeth. Artificial teeth are obtained by initial model after scanning patient's own teeth in pre-operation period. Prosthesis is made in one piece by method of computer milling from plastic disc.
EFFECT: invention makes it possible to make disconnecting post-operation dentoalveolar prosthesis for upper jaw for all types of its resection, which provides formation of prosthetic bed in the section of performed operation, optimal fixation under unfavourable clinical conditions of prosthetic bed, recovery of chewing function and restoration of height of the lower third of face after surgery.
SUBSTANCE: invention refers to medicine, particularly to dentistry, and is applicable in making a releasing postoperative maxillofacial prosthesis for all types of maxillectomy. Surgical manipulations are preceded by imprinting both patient's jaws. A dental occlusion is recorded. Models are made after the imprints. The models are fixed in an articulator, and denture teeth are mounted in place of proper missing teeth. The working model is scanned and digitised by means of a computer unit of CAD/CAM system. Planned surgical area boundaries are defined on a basic model, and the above boundaries are virtually engraved vertically and horizontally at a width and a depth of 2.5 mm. The engraved model is scanned by means of the computer unit of CAD/CAM system. The computer unit is also used to model the releasing postoperative maxillofacial prosthesis with retention elements and artificial teeth by matching the prosthetic bed of the engraved model and dental arches of the basic model prepared pre-operatively. The modelled construction of the releasing postoperative maxillofacial prosthesis with artificial plastic-plate teeth is milled. The made prosthesis is processed. The prosthesis is fixed in the patient's oral cavity.
EFFECT: by providing a one-piece plastic configuration of the releasing postoperative maxillofacial prosthesis with the retention elements by computed milling, the method enables recovering the masticatory function, ensuring the prosthetic bed formation within the surgical area and the optimum fixation in the unfavourable clinical environment of the prosthetic bed.
SUBSTANCE: invention refers to medicine, particularly to dentistry, and is applicable in making a releasing postoperative maxillofacial prosthesis for all types of maxillectomy. A patient's oral cavity is optically imprinted. An optical imprint is digitised by means of a computer unit of CAD/CAM system. Planned surgical area boundaries are modelled on the formed image, and the above boundaries are virtually engraved vertically and horizontally at a width and a depth of 2.5 mm. A base of the releasing postoperative maxillofacial prosthesis is modelled with retention elements, and scanned patient's dental arch images are attached by matching technique. The modelled construction of the releasing postoperative maxillofacial prosthesis with artificial plastic-plate teeth is milled. The made prosthesis is processed, ground and polished. The prosthesis is fixed in the patient's oral cavity.
EFFECT: by providing a one-piece configuration of the releasing postoperative maxillofacial prosthesis with the retention elements by computed milling, the method enables recovering the masticatory function, ensuring the prosthetic bed formation within the surgical area and the optimum fixation in the unfavourable clinical environment of the prosthetic bed.
SUBSTANCE: invention refers to medicine, namely to dental orthopaedics and can be used to locate the mandible within the skull and to transfer cast models in the articulator space considering this location. Measuring the mandibular inclination uses prominent X-ray contrast markers fixed on the lower teeth; standard software - a computed tomography viewer - is used to transfer a projection of a standard articulatory mandibular axis on a projection of the individual mandibular axis of the head of the mandible; a virtual system of coordinates is constructed to pass through the projection of the articulatory mandibular axis, and length of segments connecting the X-ray contrast markers and the centres of the system of coordinates and the angles of the above segments and the vertical axis of coordinates is calculated. The presented device for the cast models transfer to the articulator space is provided with telescopic indicators, length and angles of which are adjusted according to the data obtained by analysing the cone-beam computed tomography images; what is also integrated is a platform comprising the mandibular cast model provided with a base hinge to locate the model in the pre-set position and at a specific angle to the standard articulatory mandibular axis. The developed sequential algorithm for calculating the primary parameters of the mandibular inclination according to the cone-beam computed tomography images and transferring the cast models to the articulator space in the same way as the patient's dental arches are arranged within the skull in relation to the mandibular axis passing through the centres of the head of the mandible under an occlusion habit.
EFFECT: presented method and device enable measuring the mandibular inclination in relation to the standard articulatory mandibular axis projected on the individual mandibular axis within the skull, and transferring this position to the articulator.
SUBSTANCE: invention refers to medicine, namely to dentistry, and is applicable in recovering the solid tissue volume and filling the denture defects before the final prosthetic repair. A cast dental model is made. Denture defects are filled with artificial acryl teeth with selecting their colour. The dental defect is to be filled. A cellulose plastic tray is made on the cast dental model with artificial teeth fixed. The tray is cut out of the produced plate. The tray is cut off along the dentogingival line of the repaired teeth. After abutment teeth are prepared, the tray with the artificial teeth is fitted to the patient's denture with pink elastic plastic applied on an inner surface of the artificial acryl teeth, and the inner surface of the tray is filled with autopolymer resin within the prepared teeth. The tray is filled with autopolymer resin of the temporary denture at least twice. The first layer of cold polymerisation plastic 1.0-1.5 mm thick is used to fill the solid tissue loss, while the second layer 0.5-1.0 mm thick restores the pink aesthetics and fixes the artificial acryl teeth.
EFFECT: method enables filling the denture defects, preventing the recurrences following the orthopaedic or orthodontic dental displacement by making and fixing the reliable and aesthetic structure with the acryl teeth and autopolymer resins on the patient's denture.
4 cl, 14 dwg, 2 ex
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.
FIELD: medical engineering.
SUBSTANCE: method involves taking anatomical imprint from jaw under prosthetic repair, casting supergypsum model for carrying out parallelometric studies, model duplication, modeling future clasp carcass skeleton from wax, enclosing the wax model into cell filled with gypsum, evaporating wax and filling the arisen cavity with polymer. The clasp carcass model is reproduced as metal one from polymer model for all models taken in production. Polymer for manufacturing clasp carcass model is reactive composition hardening at room temperature and composed of two ingredients taken in 2:1 proportion by weight. The first ingredient portion is based on polymethyl methacrylate, and the second one is polymethyl methacrylate with dimethylaniline added in the amount of 1-2% by mass.
EFFECT: significantly accelerated carcass manufacturing process; high accuracy in reproducing sizes; improved connection of locks and telescopic crowns to polymer carcass; low production costs.
FIELD: medical engineering.
SUBSTANCE: device has vestibular and oral parts connected to each other with crosspieces manufactured from orthodontic wire placed in interdental spaces by producing jaw imprints. Working and auxiliary models are molded. To place treating bandage, general clinical equator of all teeth included into the splint is to be determined on working model using parallelometer. Then, space between the clinical equator line and gingiva and a gingiva part 7-8 mm remote from gingival papillae are covered with dental wax layer of thickness equal to or less than 1.5 mm. Next to it, duplicate model is produced for manufacturing the splint having recess equal to wax layer thickness 1.5 mm. Changing wax for transparent plastic, filing and polishing the splint is carried out by applying method of common use.
EFFECT: enhanced effectiveness of treatment.
SUBSTANCE: method involves reinforcing crown part defect with wave-shaped wires. The wires are taken in advance from gold-coated metal network, Ѕ tooth root length long wire portion is twisted and fixed in the canal. Free ends of the wires are distributed along vestibular surface of tooth cutting edge and bent towards vestibular tooth surface 1-1.5 mm below the cutting edge. Free ends of the wires are fixed in oval tooth cavity on the vestibular tooth surface side. Artificial enamel layer is produced from macrofilled composite material anatomically matching in shape the incisor crown part, fixing the wave-shaped wires in composite material. Artificial dentine is produced from microfilled composite material.
EFFECT: high strength of incisor walls; long service life under chewing loading.
SUBSTANCE: method involves carrying out odontopreparation, forming cylindrical tooth stump to gingival level, forming a projecting part on this place and fixing net carcass on the stump followed by crown part restoration using composite material. When forming stump, occlusion surface is filed off by 0.9-1.2 mm and additional retention zones like 0.2-0.3 mm deep horizontal grooves are formed on the aproximal surfaces. The carcass is produced from gold-plated metal wire net having 0.4 mm large meshes to fit the stump. Before being fixed, the net carcass is treated twice with masking agent leaving meshes open. Final crown part restoration follows with anatomical tooth shape being taken into account.
EFFECT: fully restored anatomical tooth shape; high strength of tooth walls; long service life; high esthetic quality.
SUBSTANCE: method involves applying preparative endodontic treatment, fixing reinforcing net in prepared cup-like tooth cavity formed and produced in root base zone. The cup-like tooth cavity is formed after having temporarily fixed crown part walls along the fracture line using enveloping composite ring, gingiva retraction and preparing demineralized tissues. The crown part walls are formed from composite material keeping to anatomical shape of tooth under restoration after having fixed root fracture with glass ionomer cement being used. The net is shaped in advance to make it congruent to cavity of tooth under restoration and fixed in the cavity by means of fluid composite. The formed cavity is filled with microfilled composite. Macrofilled composite is used for building tooth crown part and tubercles.
EFFECT: high strength of the structure; long service life.
FIELD: medical engineering.
SUBSTANCE: method involves carrying out electrochemical degreasing metal prosthesis carcass surface, anodic etching and cathodic etching and then coating with 0.1-0.3 mcm thick primary gold layer from acid electrolyte. Next to it, 40-50 mcm thick basic gold layer is deposited from alkaline electrolyte.
EFFECT: improved esthetic properties; lowered toxic properties of alloy.
FIELD: medical engineering.
SUBSTANCE: method involves producing plaster jaw model from imprints taken in advance and modeling half-finished wax bite cap article next to it. Silicon mould is manufactured by applying manual molding method with through sprue holes used for filling space, produced after removing half-finished wax bite cap, with plastic. The silicon mould is withdrawn after having plastic polymerized, flow gates are cut off and their attachment places are polished.
EFFECT: simplified process; normalized lower face part height.
FIELD: medical engineering.
SUBSTANCE: method involves molding plaster jaw models from obtained anatomical imprints. Then, intermediate modeling of future dental bridge structure is carried out using wax, dental row plaster model segment imprint is produced on the area restricted with bearing teeth, intact dental row plaster die is manufactured, transparent dental kappa is produced from acryl using hot forming and adjusting abutment teeth stumps imprints and marginal area of intermediate portion of temporary dental bridge structure.
EFFECT: high strength; stable tooth row occlusion.
SUBSTANCE: method involves applying endodontic treatment of root, fixing pin manufactured from gold-coated metal gauze having free wires on opposite ends and repairing dental crown part with composite materials depending on particular morphological features of the dental row and length of area between the abutment teeth, to be substituted. The pin is fixed in root canal and mediodistal slot made in advance on its base with twisted wires. The wires on the opposite ends are bent towards vestibular side and additionally fixed with beams fixed in advance on the abutment teeth. The wires are brought above the upper and under lower beams. The beams and wires are treated with masking agent before repairing dental crown part.
EFFECT: enhanced effectiveness in restoring functional and esthetic properties of dental row; accelerated treatment procedure; reduced risk of traumatic complications.