3 results about "Crown repair" patented technology

The application discloses a kind of crown prosthesis retained form cutting method and device, wherein the method includes: import prosthesis model, occlusal model and minimum thickness layer model, and based on prosthesis model, occlusal model and minimum thickness layer model are calculated, obtain complete deformation region;Based on complete deformation region, surface morphology weakening treatment is carried out to prosthesis model, obtain prosthesis model after surface morphology weakening treatment;Calculate the first collision deformation region of minimum thickness layer model and the prosthesis model and the second collision deformation region of occlusal model and the prosthesis model, and based on the first collision deformation region and the second collision deformation region, deformation processing is carried out, and deformation processing result is obtained;Deformation processing result is detected, and it is judged whether there is collision area.The application eliminates the collision area between models by deforming the prosthesis model, so as to ensure the minimum thickness and initial contour of the prosthesis, and improve the deformation quality.

This utility model discloses a lateral placement implant restoration structure, including a crown. A first limiting groove is longitudinally opened through the center of the front of the crown, and several second limiting grooves are symmetrically arranged through both sides of the front of the crown. An abutment is installed inside the crown, including an upper abutment body, a middle abutment body fixedly arranged at the bottom of the upper abutment body, and a lower abutment body fixedly arranged at the bottom of the middle abutment body. The upper abutment body is placed inside the crown and is locked in the first limiting groove. Several retention blocks are symmetrically fixedly arranged on both sides of the upper abutment body and are locked in the second limiting grooves. An implant is installed at the bottom of the abutment. The crown of this utility model cooperates with the abutment through lateral placement. Compared with the traditional implant-bonded crown restoration operation, this system does not require the use of adhesive, avoiding the situation where adhesive is squeezed out and solidified between the crown and the abutment, and remains under the gum line and is difficult to clean.