Mortise and tenon joint-type repair design method applied to dental crown implantation in feature-beautifying area

Abstract

The invention provides a mortise and tenon joint-type repair design method applied to dental crown implantation in a feature-beautifying area. The method comprises the following steps: fixing an implant in an alveolar bone; after the implant and the alveolar bone are combined into a whole, arranging a porcelain abutment at an upper end of the implant; and taking a porcelain veneer, placing the porcelain veneer at an upper end of the porcelain abutment in a sliding manner along a surface of the porcelain abutment, and fixedly connecting the ceramic veneer with the porcelain abutment in a mortise and tenon joint manner. A full dental crown is changed into an improved porcelain veneer, the personalized porcelain abutment matched with the porcelain veneer is designed, the porcelain veneer and the porcelain abutment are fixedly connected in the mortise and tenon joint manner, such that an adhesive is not needed, a problem of inflammation around the implant caused by the residual adhesive is avoided, a success rate of implantation is increased, the porcelain veneer is arranged and a problem of aesthetic defects of a dental crown lip side opening caused by screw retention is effectively solved.

Description

technical field [0001] The invention relates to the field of oral medical technology, in particular to a mortise and tenon joint restoration design method applied to implant crowns in aesthetic areas. Background technique [0002] At present, when designing the implant plan for the missing anterior teeth, due to the labial-glossal bone absorption of the alveolar bone after the missing anterior teeth, the design plan for implanting on the palatal side during implantation in the anterior tooth area, the long axis of the implant is inclined labially by 15 °Implanted into the implant site. However, in the second-stage restoration, an angled abutment is required to restore the crown to the normal anterior occlusal orientation. However, a long retaining screw is required to fix the angled abutment to the implant. Therefore, two crown designs have emerged. Solution 1. Adhesive retention: first connect the abutment to the implant through the retention screw, and then use professi...

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Problems solved by technology

[0003] However, although the use of bonding and retention can solve the problem of the aesthetics of the anterior crown, the excess adhesive during the bonding process will flow below the anterior gum and remain under the gum, which will greatly increase the risk due to the residual adhesive. Probability of peri-implant inflammation caused later, and eventually lead to the possibility of implant failure

Although the method of using screw retention can avoid the use of adhesives and avoid the inflammation around the implant caused by it, but because the fixation channel of the retention screw needs to be reserved on the crown, and because the long axis of the implant is lip-oriented to 15 ° For oblique implantation, it is inevitable to open a hole on the labial side of the crown. Although the resin filling material close to the color of the tooth can be used to close the labial hole after the crown abutment is fixed, after all, there is a color difference between the two. The refractive index is also different, which affects the aesthetic appearance of the front teeth

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