Method for forming alveolar process with artificial teeth in the cases of completely lacking maxilla

FIELD: medicine.

SUBSTANCE: method involves using obturating prosthesis having basic and auxiliary surface connected to each other with additional anterior, posterior and two lateral vertically arranged surfaces forming a cavity. The anterior and posterior vertically arranged surfaces have slot-like recesses. Reference notch marks are produced on the auxiliary surface near nose. The alveolar process is manufactured as base and wall. Reference notch marks are produced on the base. Wall has holes for making process lightweight. Teeth are set on the wall.

EFFECT: simplified prosthesis design.

6 cl, 3 dwg

 

The invention relates to medicine, in particular to prosthetic dentistry and is intended to compensate for defects of the upper jaw of different origin, including its complete absence.

The known method of forming the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw (Alavarez, Gpots. Replacement prostheses of the upper jaw. Kiev: Health, 1981, p.7-31), including the removal of the cast of the prosthesis of the obturator and the pouring of a working model, manufacturing model wax template.

In the known method the alveolar bone and the prosthesis obturator is made of a single design, difficult to manufacture and use, have considerable weight and do not allow the formation of individual alveolar bone with teeth. The present invention is to remedy these disadvantages.

The technical result consists in the simplification of the method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw, and the use of the prosthesis is of simple design and versatility.

The result is achieved that the method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw, vkluchaya the removal of the cast of the prosthesis of the obturator and the pouring of a working model, manufacturing a wax pattern of the alveolar process, applied to the prosthesis-the obturator in the nose notch-focus, a wax pattern of the alveolar ridge is made on the plaster model of the prosthesis of the obturator, carry a wax pattern of the alveolar ridge, match it with a prosthesis obturator in the notches-benchmarks and poured to prosthesis-obturator hot wax, to form the required angle of the wax pattern of the alveolar ridge in the mouth, determine the Central value of the lower jaw and denture-obturator with a wax pattern of the alveolar ridge in a state of physiological rest considering compensation sagging prosthesis-obturator attached to the wax pattern of the alveolar process, create the retention grooves on the occlusal surface of the wax pattern of the alveolar ridge is applied on the occlusal surface of the wax pattern of the alveolar ridge silicone mass, fix the bite when the ratio of the lower jaw with a wax pattern of the alveolar ridge of the denture-obturator, define the smile line, then pour the silicone mass of a wax pattern of the alveolar ridge is separated from the denture-obturator and fixed on the same plaster model, after matching notches-benchmarks wax pattern of the alveolar process method : automatic shape who and poured to the edge of the plaster model, the prosthesis obturator with a wax pattern of the alveolar ridge is fixed in occlusion with the lower jaw in the articulator plaster, wax pattern, imitating the alveolar bone, remove the layer height to the smile line, carry out the production of false teeth length to a second premolars, carry out the modeling of the alveolar ridge with a minimum thickness, wax alveolar bone is separated from the plaster model and poured to prosthesis-obturator wax, carry out the fitting and correction of the position of the alveolar ridge and teeth in the oral cavity, gypsum received the alveolar bone with artificial teeth in a ditch, the wax is boiled, produce insulation gypsum lacquer, form the alveolar basic plastic produce polymerization of the alveolar ridge with artificial teeth in a water bath at the temperature and pressure after polymerization on the alveolar ridge is applied labels to create embrasure holes, choose the cutter openings expose the alveolar sanding and varnish for acrylic plastic with subsequent setprimarykey, and the fact that the coating on the prosthesis-the obturator in the nose cuts-benchmarks perform cylindrical cutter, and the fact that the wax pattern of the alveolar ridge poured to the prosthesis is-the obturator on the edge of boiling the base with wax, and the fact that compensate for the sagging of the prosthesis of the obturator, with Muco-muscle fit, under his weight by shortening the height of the wax pattern of the alveolar ridge at 5 mm from a state of physiological rest, and the fact that the wax pattern of the alveolar ridge is separated from the denture-obturator along the line of attachment and strengthen on a similar plaster model, focusing on the cuts-benchmarks applied earlier, and the fact that the polymerization of the alveolar ridge with artificial teeth are manufactured in a water bath at the temperature and pressure of plastic stomachal, and the fact that the alveolar bone is subjected to sanding and varnish for acrylic plastic with subsequent setprimarykey for 3 minutes.

The implementation of the method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence illustrated by figure 1 and 2, which depicts the prosthesis obturator and the alveolar bone with artificial teeth. The prosthesis obturator 1 contains the primary and secondary surfaces 2 and 3 are interconnected by means of an additional front, rear and two side vertically oriented surfaces 4, 5, 6 and 7 with the formation of the cavity 8, the front and rear vertically oriented surfaces 4 and 5 are made with grooves in the form of heavy the Cove 9, 10 on the supporting surface 3 in the region of the nose is made of a notch-benchmarks 11, alveolar 12 made in the form of the base 13 and the wall 14, on the basis of a notch-focus 15, the wall is made with holes 16 to facilitate weight of the Appendix 12, wall 14 is set teeth 17. The method is as follows. On the supporting surface 3 of the prosthesis of the obturator 1 in the nose cylindrical cutter made three notches of the guide 11. Removed the cast from prosthesis-obturator 1 and molded plaster working model. Model is made of wax pattern of the alveolar ridge 12 a length of the second premolars. In the clinic the wax pattern matches with notches 11 and prilisaetsa to the prosthesis-the obturator on the edge of boiling the base with wax THAT 64-2-211-77, Kharkov, Ukraine, to work with the wax pattern of the alveolar ridge in the mouth. Formed the necessary angle of wax pattern of alveolar bone that supports the upper lip from the sticky, and create a normal aesthetic relation with the lower lip.

Determined by the Central value of the lower jaw and denture-obturator 1 with a wax pattern of the alveolar ridge 12 in a state of physiological rest. The height of the wax pattern of the alveolar ridge 12 is shortened by 5 mm from the state of ideologicheskogo rest (instead of 2-4 mm) to compensate for sagging of the prosthesis of the obturator 1 wax pattern of the alveolar ridge 12 under his weight (prosthesis obturator has Muco-muscle fixation) and for the possibility of exceptions contact between the teeth when pronouncing the sounds.

On the occlusal surface of the wax pattern of the alveolar ridge 12 dental spatula applied multiple deep grooves under a different angle to each other to create retention with the silicon, followed by the definition and fixation of the bite. Use silicone BIS1CO hydrophilsli ADA 19 type 1 iso 4823 type 3, Germany. The bite is determined by the ratio of the lower jaw with a wax pattern of the alveolar ridge 12 of the prosthesis of the obturator 1. Defines the smile line. After hardening of the silicone mass of a wax pattern of the alveolar ridge 12 is separated from the denture-obturator 1 line attached and fixed on the same plaster model, focusing on the cuts-references 11, 15, applied earlier. After mapping the wax pattern of the alveolar ridge 12 prilisaetsa to the edge of the plaster model. This is the analog of the prosthesis of the obturator 1 with a wax pattern of the alveolar ridge is fixed in occlusion with the lower jaw in the articulator plaster. Then with the wax pattern of the alveolar ridge, imitating the alveolar bone is removed and the layer height to the smile line. Is setting the teeth 17 of a length of the second premolars. Fully implemented modeling alveolar ridge 12 with a minimum thickness. For the eat wax alveolar bone is separated from the plaster models and in the clinic prilisaetsa to the prosthesis-the obturator 1 wax. Is fitting and correction of the position of the alveolar ridge and teeth. Further laboratory is the polymerization of the alveolar ridge 12 with artificial teeth 17 in a water bath at the temperature and pressure of plastic stomachal THE 9391-009-40151387-99, type 1, class 1 scomagent, Russia. After polymerization on the alveolar ridge 12 are drawn lots to create embrasure holes 16 in order to reduce the weight of the alveolar ridge and the creation of openwork. Then these locations are chosen by the cutter hole. The alveolar bone 12 is subjected to sanding and varnish for acrylic plastics Palaseal Heraeus Kulzer, Germany, followed by setprimarykey for 3 minutes. This lacquer replaces polishing in hard to reach areas. Made alveolar bone 12 with artificial teeth 17 is ready to strengthen on the prosthesis-the obturator 1. A new set of activities aimed at the formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw shows the novelty of the method, the presence of his inventive step for the average person, to confirm industrial applicability here is a photo of the prosthesis with the alveolar ridge and teeth (see figure 3).

Consider the following example.

Excerpt from the history

History: In 1987 he was made a Subtotal resection of the upper jaw about tumors of the hard palate and bottom of the nasal cavity with subsequent radiotherapy.

In 1989, manufactured prosthesis maxillofacial hospital. Made obturator fixed with the help of a spring Pochara. The prosthesis obturator served almost 10 years, helped to separate the nasal and oral cavity. The patient had problems with the installation of the prosthesis in the oral cavity, the spring of Posara caused injury to the cheeks on both sides.

In 1999, the prosthesis was stolen along with the bag in the train.

Objective: the oral Cavity and the nasal cavity is a single cavity due to the absence of the maxillary bone. In the nasal cavity is missing a Shoe, the lower nasal turbinates. Saved the upper arches of the maxillary cavities, partially - distal, approximal and side walls; the upper and middle nasal turbinates on both sides. On the distal border of the mouth saved the soft palate, the side surface is formed of the soft tissues of the cheeks. Approximal border in the area at the base of the nose is limited to the muscles of the lips. The mucous membrane of the nasal cavity hyperemic, edematous, in the upper and middle nasal passages there are remnants of food and Muco-purulent discharge. When pronouncing the words slurred speech, words are hardly distinguishable, independent swallowing liquids is extremely difficult.

On the lower jaw are missing 47, 46, 45, 42, 35, 38 tooth. Destroyed coronal portion of the teeth 43, 41, 31, 32 to the level of the gums. On the R-picture channels filled with removing sealing material over the top into the cavity of the granuloma. There is a convergence 34, 36 in the direction of the missing 35. 34 stamped crown in satisfactory condition.

Diagnosis: Condition after Subtotal resection of the upper jaw due to surgical treatment on the tumor of the hard palate and bottom of the nose of a decade ago. The lack of separation of the nasal cavity and the oral cavity is complicated by throwing food into the nasal cavity, catarrhal inflammation of the mucous membrane of the nasal cavity, mainly in the area of the nasal Concha. Dysfunction of the swallowing, wrong speech articulation, impaired function of mastication. Violation of the aesthetics of the lower third of the face. Zapadnye upper lip due to the absence of the upper jaw bone. Cosmetic defect due to the lack of upper teeth. Partial absence of teeth in the lower jaw(47, 46, 45, 42, 35, 38) (class III by Kennedy)due to caries and its complications, multiple seals, changed in color, partial destruction of the tooth crown(43, 41, 31, 32). Convergence 34 and 36 in the area of the missing 35. Dentoalveolar elongation of the anterior teeth in the lower jaw due to the lack of teeth-antagonists. Parodontopathy due to lack of natural self-purification and lack of dental hygiene.

Treatment plan:

1. To manufacture the prosthesis obturator with fixation with preserved soft tissues without the use of a spring Fasara to divide the nasal cavity and the oral cavity. To make tabs LCSW(43, 41, 31, 32), to make a bridge prosthesis with support(48, 44, 43, 41, 31, 32, 33) to restore(47, 46, 45, 42), to align the occlusal plane;

2. At the stage of adaptation to the prosthesis-the obturator fully complete correction of the prosthesis on the subject of eliminating Namin.

3. During the rehabilitation period to normalize fully swallowing, and speech.

4. If successful, adaptation and rehabilitation to eliminate Zapadnye upper lip and restore the front group of teeth with the help of manufacturing the prosthesis-obturator disconnect artificial alveolar bone with teeth. To restore speech to a patient in connection with an altered vault of heaven.

5. To solve the question about the possibility of using implants to restore full function of chewing computer after examination of the foundations of the of the skull and solve the financial problems of the patient.

14.01.99. Feel satisfactory. No complaints. Cut the softened tooth tissue, responsivene channels 43, 41, 31, 32, 2/3 modeled tab.

19.01.99. Feel satisfactory. No complaints. Commit tabs on vistat, uncut 48, 44, 43, 41, 31, 32, 33 for the manufacture of bridges. Removed the casts of the lower jaw for the manufacture of stamped crowns. Removed cast Rotanova cavity for manufacturing individual spoons.

01.02.99. Feel satisfactory. No complaints. Fitting crowns, removal of the cast for the spikes of the crown and the manufacture of the intermediate part of bridge-like prosthesis. Correction of individual spoons on the contact surface with the soft tissues on the subject of the elimination of extrusion individual spoons muscles of the cheeks, the elimination of excessive undercut in the region of the distal border of the upper edge of the soft palate and approximalely border in the upper part of the muscles of the lips at the base of the nose. Removed cast individual spoon Cialiscom-69 for the manufacture of hollow obturator prosthesis.

09.02.99. Feel satisfactory. No complaints. The imposition of the bridge based on 48, 45, 44, 43, 42, 41, 31, 32, 33 and fixing it on vistat. The fitting upper part of the prosthesis of the obturator along the borders of the prosthesis, removal of excessive undercut in the field pixelwise the grooves in the distal part of the upper edge of the soft palate in the approximal region of the upper edge of the lip and the base of the nose. The deepening of the locking grooves, clinical relocation of soft padding, maximum thinning of the walls of the obturator. Fixing caps for hollow obturator to protocel, processing junctions. Patient education is the imposition and removal of the prosthesis of the obturator. Recommendations on the use and care of the prosthesis.

With 10.02.99 on 16.02.99. Correction of the prosthesis in the area Namin, attend pronunciation of sounds. The patient is warned of perebazirovka pads in 6 months.

13.12.00. Feel satisfactory. Complaints peel pads, the emergence of Namin. To come to the dispensary inspection and replacement pads could not, since lived in the Tver region, where caring for a sick relative.

Objective: the articulation and swallowing recovered. On the distal border of the prosthesis in the region of the soft palate appeared insignificant Namin.

Produced relines denture-obturator soft padding, the patient is assigned to receive to restore teeth in the anterior part to correct cosmetic defects of the dentition and the failure of the upper lip as a result.

20.12.00. Feel satisfactory. Complaints about the pain of the prosthesis of the obturator in the area of the soft palate. Made the correction basis of the obturator in the area Namin.

08.10.01. Health satisfaction is WriteLine. Complaints about the pain of the prosthesis of the obturator in the area of the soft palate.

Objectively: there was a partial peeling pads, violated its elastic properties. Made the relocation of a soft gasket. On the prosthesis-the obturator in the anterior part has three grooves for the orientation of the bite of the roller on the plaster model and the prosthesis-the obturator in the oral cavity. Removed the cast from prosthesis-obturator and lower jaw for the manufacture of roller bite.

15.10.01. Feel satisfactory. No complaints. The definition of centric relation of the prosthesis of the obturator and the lower jaw with wax template.

22.10.01. Feel satisfactory. No complaints. Fitting wax alveolar bone with artificial teeth 45, 44, 43, 42, 41, 31, 32, 33, 34, 35, based on the three guide grooves in the anterior division of the obturator and the occlusion of the teeth in the area of 45, 44, 34, 35.

29.10.01. Feel satisfactory. No complaints. Fitting the finished artificial alveolar ridge without 45, 35 teeth to reduce the weight of the structure. To create opportunities to implement conditionally demountable prosthesis obturator with artificial alveolar process used attachments firm “Bregent”. Ersatz Patricia strengthened in artificial alveolar ridge, and the matrix in a metal container, strengthened wbesite prosthesis-obturator to protocel. Weight loss artificial alveolar process by creating the appropriate holes. Recommendations for the care of the prosthesis and rehabilitation of speech.

06.11.01. Feel satisfactory. No complaints. Made control panoramic x-ray. Recommendations for the care of the prosthesis. Control examination after 6 months.

Thus, the invention allows to develop and to use a fairly simple method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw, and to use the prosthesis obturator simplified design and versatility.

1. The method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw, including the removal of the cast of the prosthesis of the obturator and the pouring of a working model, manufacturing a wax pattern of the alveolar ridge, characterized in that applied to the prosthesis-the obturator in the nose notch-focus, a wax pattern of the alveolar ridge is made on the plaster model of the prosthesis of the obturator, carry a wax pattern of the alveolar ridge, match it with a prosthesis obturator in the notches - benchmarks and poured to prosthesis-obturator hot wax, to form the desired angle of inclination of the wax W is the patterns of the alveolar ridge in the cavity mouth, determine the Central value of the lower jaw and denture - obturator with a wax pattern of the alveolar ridge in a state of physiological rest considering compensation sagging prosthesis-obturator attached to the wax pattern of the alveolar process, create retention grooves on the occlusal surface of the wax pattern of the alveolar ridge is applied on the occlusal surface of the wax pattern of the alveolar ridge silicone mass, fix the bite when the ratio of the lower jaw with a wax pattern of the alveolar ridge of the denture-obturator, define the smile line, then pour the silicone mass of a wax pattern of the alveolar ridge is separated from the denture-obturator and fixed on the same plaster model, after matching notches-benchmarks wax the pattern of the alveolar ridge is poured to the edge of the plaster model, the prosthesis obturator with a wax pattern of the alveolar ridge is fixed in occlusion with the lower jaw in the articulator plaster, wax pattern, imitating the alveolar bone, remove the layer height to the smile line, carry out the production of false teeth length to a second premolars, carry out the modeling of the alveolar ridge with a minimum thickness, wax alveolar bone is separated from the plaster model and poured to prosthesis-obturator wax, carry out the fitting and correction of the position of the alveolar ridge and teeth in the oral cavity, gypsum received the alveolar bone with artificial teeth in a ditch, the wax is boiled, produce insulation gypsum lacquer, form the alveolar base plastic, produce polymerization of the alveolar ridge with artificial teeth in a water bath at the temperature and pressure after polymerization on the alveolar ridge is applied labels to create embrasure holes, choose the cutter openings expose the alveolar sanding and varnish for acrylic plastic with subsequent setprimarykey.

2. The method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw under item 1, characterized in that the coating on the prosthesis-the obturator in the nose cuts-benchmarks perform cylindrical cutter.

3. The method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw according to claim 1, characterized in that the wax pattern of the alveolar ridge poured to prosthesis-the obturator on the edge of boiling the base with wax.

4. The method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the top is her jaw according to claim 1, characterized in that compensate for the sagging of the prosthesis of the obturator, with Muco-muscle fit, under his weight by shortening the height of the wax pattern of the alveolar ridge at 5 mm from a state of physiological rest.

5. The method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw according to claim 1, characterized in that the polymerization of the alveolar ridge with artificial teeth are manufactured in a water bath at the temperature and pressure of plastic stamaril.

6. The method of formation of the alveolar ridge with artificial teeth to the denture-obturator in the complete absence of the upper jaw according to claim 1, characterized in that the alveolar bone is subjected to sanding and varnish for acrylic plastic with subsequent setprimarykey for 3 minutes



 

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The invention relates to medicine and can be used in prosthetic dentistry

The invention relates to the field of medical engineering, in particular to dental devices

FIELD: medicine.

SUBSTANCE: method involves using obturating prosthesis having basic and auxiliary surface connected to each other with additional anterior, posterior and two lateral vertically arranged surfaces forming a cavity. The anterior and posterior vertically arranged surfaces have slot-like recesses. Reference notch marks are produced on the auxiliary surface near nose. The alveolar process is manufactured as base and wall. Reference notch marks are produced on the base. Wall has holes for making process lightweight. Teeth are set on the wall.

EFFECT: simplified prosthesis design.

6 cl, 3 dwg

FIELD: medicine.

SUBSTANCE: method involves basic and auxiliary horizontally arranged surfaces joined by means of additional frontal, back and two lateral vertically arranged surfaces with a plane being formed. The frontal and back vertically arranged surfaces have recesses as retention grooves. Reference notches are made in the nose area on auxiliary surface. The alveolar process is manufactured base and wall. The base has reference notches. The wall has openings for reducing process weight. Teeth are mounted on the wall. Three openings arranged as triangle which base is turned towards pharynx are produced in auxiliary surface of the obturator prosthesis. Metal containers having matrices pressed into them are introduced into the openings. Three openings arranged as triangle which base is turned towards pharynx are produced on the base bottom. Pedicles (flow gates) having retention notches are mounted in the openings. Each flow gate ends in patrix engageable with corresponding matrix.

EFFECT: simplified and reliable method for fixing alveolar process.

3 cl, 3 dwg

FIELD: medical engineering.

SUBSTANCE: device has partial removable palatine plate prosthesis bearing artificial temporary. The palatine plate has an anterior and two lateral segments connected to each other by means of screw in the anterior palatine fornix region allowing autonomous displacement. Cramp iron members are set on the fangs and on the boundary separating the anterior and lateral segments and on the second temporary molars. Shield for moving upper lip aside is placed in the area of dental arch defect along alveolar process with anterior segment. The shield forms slit between shield surface and gingiva. The shield is stretched to contact point of fang to the first permanent molar. Shield edge is made oval and congruent to transit fold contour.

EFFECT: cosmetically full-valued substitution of upper dental arch defect.

3 dwg

FIELD: medical engineering.

SUBSTANCE: method involves producing maxillary defect imprint, manufacturing its plaster model and modeling wax pattern of obturator prosthesis. The model is compressed with single basis wax layer. Recess is formed on the palatine part corresponding to defect shape. The basis and wax copy of artificial alveolar process is modeled and teeth setting is carried out. Plate is produced from basis wax as a cover closing the recess formed on the palatine part. The cover models the palatine fornix in which a hole of 10-15 mm large diameter is produced. The plate is fixed with wax on defect edges. The so modeled hollow obturator prosthesis is plastered into cuvette composed of two parts - bottom and cover. Model with obturator prosthesis in vertical position is plastered into lower cuvette part. Upper cuvette part is set and filled with liquid gypsum on vibrating table. Gypsum flows inside of obturator through an opening in palatine part. Metal wire loop is introduced into the obturator through an opening in wax plate. Wire diameter is 1.0-1.5 mm as large. The cuvette is hold to achieve full hardening of gypsum. The cuvette is opened after removing wax by applying evaporation method. Obturator model and upper cuvette part are filled with dough-like plastic. Both parts of the cuvette is joined and pressed in vertical direction using bench press. The plastic is polymerized. The prosthesis is removed from the cuvette. Gypsum and reinforcing wire are removed from the cuvette through the palatine part opening. The opening is closed with self-hardening plastic. The prosthesis is filed and polished and fitted in the oral cavity.

EFFECT: improved strength properties; exact correspondence to prosthesis bed.

10 dwg

FIELD: medicine.

SUBSTANCE: method involves manufacturing silicon cliché stensil for reproducing morphologic pattern of palatine surface of removable maxillary plate prosthesis base and individual pattern of transverse palatine sulci. The cliché stensil is a fragment of adjusted double anatomical maxilla impression with imprint of individual pattern of transverse palatine sulci. To do it, adjusted double anatomical maxilla imprint is to be produced using imprint silicone mass. After having produced the impression, palatine surface fragment is cut out from it. Wax is heated on oral side at the laboratory stage for manufacturing removable plate prosthesis when modeling removable final wax reproduction of maxillary plate prosthesis base; and the palatine surface is printed by means of earlier produced cliché stensil.

EFFECT: high accuracy in reproducing of individual palatine sulci pattern; full-valued rehabilitation of patients with partially or completely failing teeth.

FIELD: orthopedic stomatology.

SUBSTANCE: method of forming elastic silicone substrate on rigid plastic basis consists in that mechanically and chemically treated surface of rigid basis adjusting to prosthetic bed is moistened with monomer being a member of basis plastic composition, dried, and coated with adhesive primer. After 1 min pause, basis is introduced for 3-4 min into microwave field emitted by source with power 450-600 W. After microwave treatment, surface is coated by cold-cured elastomer and substrate layer is then formed in mouth cavity. Adhesive strength of layer is thus increased by more than 1.5-2 times when compared to conventional method.

EFFECT: increased strength of bond between soft substrate and rigid plastic basis, and prolonged service time of denture.

1 tbl, 3 ex

FIELD: medicine; orthopedics.

SUBSTANCE: compound-jam post-resection denture can be used for making compound-jam prosthetic appliances for patients having wide defects of tissues of jam-face area. Denture is made in form of removable construction which has fixing, substituting and hollow sealing parts. Groove is made additionally in denture which groove locates onto top surface of sealing part. There is also channel passing through denture which has input being made inside the groove. Output of channel is disposed between second pre-molar and first pre-molar inside interior to provide muscular retention of denture. Bottom of the groove is made to have inclination to input of channel.

EFFECT: possibility of self-release of liquid stored onto top part of sealing part of denture.

1 dwg

FIELD: medicine.

SUBSTANCE: method involves is fulfilled in two stages. Collapsible structure of temporary combined gnathic prosthesis is manufactured at the first stage during the first two months. The prosthesis has two obturating parts having surfaces congruent to defect cavity manufactured from flexible plastic and removable full laminar dental prosthesis having locking thrusting member manufactured by means of transfer molding. The second stage involves manufacturing permanent one-piece removable combined gnathic prosthesis using transfer molding method after holding during 5-6 months to eliminate muscle contracture and form prosthesis bed. The prosthesis has hollow obturating part and full removable laminar dental prosthesis.

EFFECT: simplified production process; early stage cancer patient rehabilitation in half-maxilla resection cases.

FIELD: medicine.

SUBSTANCE: method involves covering dental structures or prostheses with ribbon manufactured from fibers and coating it with filling material layer. The ribbon is manufactured from fluorine-containing copolymer monofiber of circular cross-section woven as ribbon as it is shown on dwg 1.

EFFECT: provided dental structure balanced life when splinting and high adhesion degree of prosthesis to filling material.

2 dwg

FIELD: medical engineering.

SUBSTANCE: device has double layer base and artificial teeth. Base layer, facing prosthesis bed having external edges positioned in active movable part of mucous membrane in making engagement to transition vault fold enveloping upper lip frenulum and buccal folds with closing valve being formed, is manufactured from superelastic titanium nickelide. The base layer compensating alveolar process bone tissue atrophy is manufactured from acrylic plastic.

EFFECT: accelerated adaptation period; improved strength characteristics.

19 dwg

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