METHOD FOR MAKING NYLON DENTAL PROSTHESIS WITH TEETH OF ANY CROWN HEIGHT AND DENTAL PROSTHESIS FOR IMPLEMENTING IT Russian patent published in 2014 - IPC A61C13/00 

FIELD: medicine.

SUBSTANCE: invention refers to veterinary science, namely to prosthodontic treatment, and is applicable in making removable nylon prosthesis for the upper front teeth, including high-crown ones, such as pointed teeth. Both jaws are impressed. Master moulds are cast of die stone. Working and additional models are placed into an occludator. A future prosthesis is delineated on the working model. A wax basis is made of a wax plate. A tooth is moulded in wax, mounted in a tray and placed in boiling water. The wax is extracted and replaced by acryl. After removing, the acryl tooth is processed and polished. A socket is drilled in a base of the acryl tooth. At least two through canals are drilled from the socket above a gingival level on a palatolateral and palatomedial tooth surface. A shallow notch is made a little above the socket bottom on the outside along the whole circular length with using a ball-shaped bur. The artificial tooth with retention canals and peripheral notch is aligned with a bite and mounted on the wax basis. After the tooth is arranged, an incisal-tooth-gingival rest is moulded. The model is prepared for casting in the tray, and the teeth that can be used as retention points are ground off. The model is cast in a lower portion of the tray. Before the upper portion of the tray is cast, a gate system is mould of wax. Both portions of the tray are coupled together and bolted up. Dental stone setting up is followed by unscrewing and placing in boiling water for 10 minutes. The tray is opened, residual wax is washed out with hot water, and mould and counter-mould surfaces are processed with a divisional polish. After the division polish dries, the tray portions are connected and screwed. The prepared tray is inserted into a heated injection machine, wherein nylon under pressure fills all the retention canals of the tooth extending in the cone bells, encloses and crimps the notch along the periphery. Further, the tray is removed from the injection machine. The tray is left at a room temperature for 20 minutes and then placed in cold water until cooled completely. After the tray is opened, the prosthesis is removed, cleaned from dental stone, processed and polished. The prosthesis is applied into an animal.

EFFECT: method enables making the removable nylon prosthesis of the upper front teeth in dogs, including high-crown teeth, such as pointed teeth by creating special retention canals and peripheral notches in the acryl tooth.

4 cl, 9 dwg