J Korean Acad Prosthodont.  2019 Jan;57(1):37-41. 10.4047/jkap.2019.57.1.37.

Repairment of abutment and abutment screw fracture in implant prosthesis: A case report

• Kim JH
• Yoo JJ
• Kim MY
• Yoon JH

• KMID: 2432000
• DOI: http://doi.org/10.4047/jkap.2019.57.1.37

Abstract

Dental implants are an effective and predictable treatment for restoration of missing teeth. However, as the use of implants increases, complications are also increasing. The mechanical complications are not only highly frequent, but also increasing as life span of an implant increases, thus, solutions should be prepared. In this report, we will present a case dealing with abutment fracture and abutment screw fracture which are the most common mechanical complication of the implant, focusing on preserving and reusing existing components by reconstructing only the damaged parts.

Keyword

Implant prosthesis; Implant abutment fracture; Abutment screw fracture

MeSH Terms

Dental Implants
Prostheses and Implants*
Tooth
Dental Implants

Figure

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  Fig. 1 Fractured abutment. (A) No acknowledgeable defect was found on suprastructure, (B) Abutment was unable to be reused because of the fracture in hex area.

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  Fig. 2 (A) Overextened burnout cylinder, (B) Burnout cylinder was trimmed in accordance of fractured abutment.

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  Fig. 3 Burnout cylinder was trimmed to obtain space for pattern resin.

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  Fig. 4 Transfer of internal structure of crown using jig.

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  Fig. 5 (A and B) Removal of overextended pattern resin, (C) Reformation of margin with margin wax, (D) Casting.

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  Fig. 6 Final restoration and panoramic X-ray after try in.

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  Fig. 7 (A) Photo of fractured abutment, (B) Separation of restoration and abutment.

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  Fig. 8 Abutment level impression taking and prosthesis fabrication.

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  Fig. 9 Clinical and radiographic image after try in.

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