Method for manufacturing hollow obturator prosthesis

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

 

The invention relates to medicine, in particular to the dentist, and can be used for the manufacture of hollow prosthesis of the obturator of the upper jaw.

The closest technical solution is the method of manufacture of the obturator resection prosthesis in the upper jaw, including the removal of the cast defect, obtaining model cast in a ditch horizontal positioning by alternately filling parts of the cell gypsum and their subsequent connector after the hardening of the plaster with the placement of each part of the cuvette half of the model, forming a trapezoidal shank by connecting both halves of the cell and cut in plaster trapezoidal shank connecting the basis of the obtained models with side opening of the cell, after the disclosure of the cell modeling of wax on the model of the obturator with a given wall thickness, the connection of the halves of the cell, filling with liquid plaster through the side hole, followed by exposure to complete solidification, the opening of the cell and removing the wax by evaporation, obtaining plaster stamp of the obturator, filling model of the obturator doughy plastic, placing one half of the stamp from plaster congruent surface so that its shank took the initial position, the connection of the two halves of the cell, pressing p is Almassy simultaneously in vertical and horizontal directions, packing and polymerization of the plastic.

The disadvantage of this method is seam connection of the obturator with the basis of the prosthesis, leading to the decrease of the strength properties of the structure and inaccuracies compliance of the prosthesis prosthetic box.

Object of the present invention is to improve the strength properties of the prosthesis and fidelity of the prosthesis prosthetic box.

This object is achieved in that in the method of manufacturing a hollow prosthesis of the obturator of the upper jaw, including the production of cast defects and manufacturing models, modelling wax pattern of the prosthesis, the manufacturer of gypsum stamp of the obturator with the shank, packing and polymerization of plastics, the new method is that the model compresses one layer of base wax with the formation of depressions in accordance with the defect model and wax similar artificial alveolar bone, are setting the teeth, form a plate with a hole of 10-15 mm, covering the palatal defect part and fixed with wax on the edges of the defect, and the prosthesis obturator gypsum in the cuvette in the lower part of which gypsum model and set the top, filling it with plaster, flows through the hole in the plate inside of the obturator, spend reinforcement shank by installing through the hole in the wax plate of the hinge of meta is symbolic of wire with a diameter of 1.0 to 1.5 mm, after removal of the wax cell open, hold the package and the polymerization of the base of the plastic through the hole in the plate to remove the plaster and reinforcing wire from the cavity of the obturator, which is closed with self-hardening plastic.

The proposed method of manufacturing a hollow prosthesis-obturator upper jaw allows you to create high-precision spatial-volumetric design that exactly matches the prosthetic socket, by performing a prosthetic base and obturator simultaneously in a single whole without connecting seams. The prosthesis may be made of rigid or flexible plastic, and combinations thereof. This design has a minimum weight due to thin walls of the obturator and the hollow. Creating a domed obtenerse part with the exact reliefwartrol spatial configuration corresponding to the defect meets the highest hygienic requirements, minimizes vertical balancing replacing parts of the prosthesis, the overload of the abutment teeth and surrounding tissues. The lack of between the obturator and the basis of the prosthesis connecting seams increases the accuracy of the prosthetic limb socket, its strength properties and durability.

The method is as follows. Get an impression of the defect of the upper jaw, it is made a plaster model and will delirous wax pattern of the prosthesis of the obturator. The model compresses one layer of base wax, palatal part of the recess is formed in accordance with the shape of the defect. Model basis, wax similar artificial alveolar bone, are staging teeth. From the base wax form the plate in the form of a cover covering the recess on the palatal side and simulating the Palatine arch, which make a hole with a diameter of 10-15 mm Plate secured along the edges of the defect wax. Autodelivery so hollow prosthesis obturator gypsum in a cell, consisting of two parts, the bottom and cover. Cuvette provided with grooves and protrusions for fixing its detachable parts. In the lower part of the cell gypsum model with prosthesis obturator in a vertical position, then install the upper part of the cuvette and fill it with liquid plaster on the vibrating table, through the hole in the palatal part of the liquid plaster fills the inside of the obturator. After the upper part is completely filled with plaster, carry out reinforcement of the shank. Through the hole in the wax plate inside of the obturator enter a loop of metal wire with a diameter of 1.0 to 1.5 mm, which serves to increase the strength of the shank packing plastic. Cuvette stand before the complete solidification of gypsum under pressure from the press table. After wax removal by evaporation cell open. In the cut is ltate on the upper part forms a mushroom shape stamp with a thin shank, repeating the spatial configuration of the defect, while its surface is reduced by the thickness of the wax pattern of the obturator. The model of the obturator and the upper part of the cuvette filled doughy plastic, connect the two halves of the cell and pressed in the vertical direction using a table press. Due to the special design of the stamp with a thin shank is formed a uniform pressure, which allows to obtain the desired wall thickness of the obturator. Carry out the polymerization of the plastic. Remove the denture from the cell and through the hole in the palatal part of the removed plaster and reinforcing wire from the cavity of the obturator, which is closed with self-hardening plastic. Spend grinding and polishing, after which the prosthesis prepassivate in the mouth.

The drawing shows a diagram of sagipsul wax pattern hollow prosthesis of the obturator of the upper jaw.

Example 1. Patient W., 76 years, turning to the clinic of orthopedic dentistry complained of the impossibility of chewing, hit her in the nose, slurred, nasalized speech speech, aesthetic defect of the person.

From the anamnesis: the resection of the left upper jaw and enucleation of the left eyeball in 1964 about squamous cell orogovevshih cancer.

Physical examination revealed a violation of the configuration of the face due to unavailable or is of the left eyeball and left zapadenia soft tissues in the orbit, Malar, infraorbital areas, the upper lip, the offset of the left wing of the nose down.

From the vestibule and the actual oral cavity was determined by the absence of left upper jaw and free communication with the nasal cavity. The mucous membrane covering the defect, without visible changes. The teeth on the right upper jaw are missing. Atrophy of the alveolar ridge III century Schroeder, shape sloping. On the lower jaw had 33 and 34 teeth.

The patient is made hollow prosthesis obturator, kept due to anatomical retention. After tamponade defect moist gauze cloth received the impression alginate mass. Made a plaster model. The last compressed one layer of base wax, palatal part of the recess formed in accordance with the shape of the defect. Performed modeling basis, wax similar artificial alveolar ridge, placing the teeth. From the base wax formed plate in the form of a cover covering the recess on the palatal side and simulating the Palatine arch, in which the hole diameter of 10-15 mm Plate fixed on the edges of the defect wax. Autodelivery so hollow prosthesis obturator of gypsum in a cell, consisting of two parts, the bottom and cover. Cuvette provided with grooves and protrusions for fixing its detachable parts. In the lower part of uvey plaster model with prosthesis obturator in a vertical position, then installed the upper part of the cell and filled with liquid plaster on the vibrating table, through the hole in the palatal part of the liquid plaster inside of the obturator. After the upper part is completely filled with plaster conducted reinforcement shank. Through the hole in the wax plate inside of the obturator entered a loop of metal wire with a diameter of 1.0 to 1.5 mm, which serves to increase the strength of the shank when packing plastic. Cuvette maintained until the complete hardening of the plaster under the pressure of the press table. After wax removal by evaporation cell is disclosed. As a result, the upper part is formed mushroom shaped stamp with a thin shank, repeating the spatial configuration of the defect, while its surface is reduced by the thickness of the wax pattern of the obturator. The model of the obturator and the upper part of the cuvette filled doughy plastic, connected the two halves of the cell and subjected to pressing in a vertical direction using a table press. Due to the special design of the stamp is formed uniform pressure, allowing to obtain the desired wall thickness of the obturator. Carried out the polymerization of the plastic. The prosthesis is removed from the cell and through the hole in the palatal part of the removed plaster and reinforcing wire from the cavity of the obturator, which closed sabotage the plastic soup. Held grinding and polishing of the denture with the subsequent fitting in the mouth.

Example 2. Patient T., aged 29, when referring to the clinic of orthopedic dentistry complained of the impossibility of chewing, hit her in the nose, slurred, nasalized speech speech, aesthetic defect of the person.

From the anamnesis: six months ago I got road trauma, which has repeatedly been hospitalized. Diagnosis at discharge: Traumatic brain injury, brain injury of moderate severity. Acute violation of cerebral circulation in ischemic type in the pool of the left middle cerebral artery with right-hand reflex hemiparesis. Contused wound of the midface. Comminuted fracture of the right and left upper jaw. Bilateral fracture of the mandible (body to the right, the left branch).

Physical examination is determined by the violation of the configuration facial scar deformation and zapadenia soft tissues of the midface. The inability to close the mouth.

When the inspection of the oral cavity revealed a lack of the right and left upper jaw with the exception of thigh right upper jaw. Mouth freely communicates with the nasal cavity through a slit-like defect size 20×8 mm Mucous membrane covering the bone defect, scar from anena.

The patient is made hollow prosthesis obturator, kept due to anatomical retention. After tamponade defect moist gauze cloth received the impression alginate mass. Made a plaster model. Conducted modeling basis, wax similar artificial alveolar ridge, placing the teeth with regard to the recovery of the missing hard tissues. The result is a spatial-volumetric model, regenerating lost bone structure of the upper jaw, with a given wall thickness. From the base wax formed plate in the form of a cover covering the recess on the palatal side and simulating the Palatine arch, in which the hole diameter of 10-15 mm Plate fixed on the edges of the defect wax. Autodelivery so hollow prosthesis obturator of gypsum in a cell, consisting of two parts, the bottom and cover. Cuvette provided with grooves and protrusions for fixing its detachable parts. In the lower part of the cell plaster model with prosthesis obturator in a vertical position, then set the upper part of the cell and filled with liquid plaster on the vibrating table, through the hole in the palatal part of the liquid plaster inside of the obturator. After the upper part is completely filled with plaster conducted reinforcement shank. Through the hole in the wax square is the Steen inside of the obturator entered a loop of metal wire with a diameter of 1.0 to 1.5 mm, serving to increase the strength of the shank when packing plastic. Cuvette maintained until the complete hardening of the plaster under the pressure of the press table. After wax removal by evaporation cell is disclosed. As a result, the upper part is formed mushroom shaped stamp with a thin shank, repeating the spatial configuration of the defect, while its surface is reduced by the thickness of the wax pattern of the obturator. The model of the obturator and the upper part of the cuvette filled doughy plastic, connected the two halves of the cell and subjected to pressing in a vertical direction using a table press. Due to the special design of the stamp is formed uniform pressure, allowing to obtain the desired wall thickness of the obturator. Carried out the polymerization of the plastic. The prosthesis is removed from the cell and through the hole in the palatal part of the removed plaster and reinforcing wire from the cavity of the obturator, which closed self-hardening plastic. Held grinding and polishing of the denture with the subsequent fitting in the mouth.

Thus, the proposed method of manufacturing a hollow prosthesis-obturator upper jaw allows you to create high-precision spatial-volumetric design that exactly matches the prosthetic socket, having a minimum weight, providing mi is kalinoe pressure on amlodipine fabric, minimize overloading of the abutment teeth that meet high hygienic requirements.

A method of manufacturing a hollow prosthesis of the obturator of the upper jaw, including the production of cast defects and manufacturing models, modelling wax pattern of the prosthesis of the obturator, the manufacturer of gypsum stamp of the obturator with the shank, packing and curing the plastic material, characterized in that the model compresses one layer of base wax with the formation of depressions in accordance with the defect model and wax similar artificial alveolar bone, are setting the teeth, form a plate with a hole of 10-15 mm, covering the palatal defect part and fixed with wax on the edges of the defect, and the prosthesis obturator gypsum in a cell, in the lower part of which gypsum model and set top part, filling it with plaster, flows through the hole in the plate inside of the obturator, spend reinforcement shank by installing through the hole in the wax plate of a loop of metal wire with a diameter of 1.0 to 1.5 mm, after removal of the wax cell open, hold the package and the polymerization of the base of the plastic through the hole in the plate to remove the plaster and reinforcing wire from the cavity of the obturator, which is closed with self-hardening plastic.



 

Same patents:

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: 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: 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 no

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 no

The invention relates to medicine, namely to prosthetic dentistry, in particular to the manufacture of removable prostheses in the complete loss of teeth

The invention relates to medicine, in particular to prosthetic dentistry and is intended to fill the defect of the upper jaw of various etiologies with resection of the anterior and upper walls of the maxillary sinus, when the formation of extensive keloid scars soft tissue component of the buccal region and sockets

The invention relates to medicine, in particular to prosthetic dentistry and is intended to fill the defect of the upper jaw of different origin with complete or partial resection of the upper jaw
The invention relates to prosthetic dentistry

Bridge // 2185128
The invention relates to medicine, namely to the dentist, and is intended to eliminate the defects of the dentition

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

Up!