Implant fixed prosthetic treatment using CAD/CAM system in a patient with severe alveolar resorption

Choi,  Yu-Sung

doi:2012.50.3.126

J Korean Dent Assoc > Volume 50(3); 2012 > Article

The Journal of The Korean Dental Association 2012;50(3):126-139.
DOI: https://doi.org/10.22974/jkda.2012.50.3.003 Published online March 31, 2012.

임상가를 위한 특집 3 - 심하게 흡수된 치조제를 가진 환자에서 CAD/CAM을 이용한 임플란트 고정성 보철치료

최유성

단국대학교 치과대학 치과 보철학 교실

Implant fixed prosthetic treatment using CAD/CAM system in a patient with severe alveolar resorption

Yu-Sung Choi

Department of Prosthodontics, School of Dentistry, Dankook University

Abstract

Loss of dentition can lead to not only compromised esthetics and functions of the patient, but also alveolar bone resorption. Bone grafting with prosthetic reconstruction of the gingiva can be selected for the treatment, and it provides many benefits as prosthetic gingival reconstruction does not require a complicated surgical process and is available within a short period of time, with stable clinical results. However, conventional porcelain fused to metal prosthesis has certain limits due to its size, and deformation after several firing procedures. In this clinical report, the author would like to introduce a patient with severe alveolar resorption who was treated with gingiva-shaped zirconia/titanium CAD/CAM implant fixed prosthesis for esthetic and functional rehabilitation. Clinical reports Clinical report 1, 2 : A case of loss of anterior dentition with atrophied alveolar bone. Implant retained zirconia bridge applied with Procera implant bridge system to simulate the gingiva. Upper structure was fabricated with zirconia all ceramic crown. Clinical report 3, 4 : A case of atrophied maxillary alveolus was reconstructed with fixed implant prosthesis, a CAD/CAM designed titanium structure covered wi th resin on its surface. Anterior dentition was reconstructed with zirconia crown. Conclusion and clinical uses. All patients were satisfied with the outcome, and maintained good oral hygiene. Zirconia/titanium implant fixed prosthesis fabricated by CAD/CAM system was highly accurate and showed adequate histological response. No critical failure was seen on the implant fixture and abutment overall. Sites of severe alveolar bone loss can be rehabilitated by implant fixed prosthesis with CAD/CAM system. This type of prosthesis can offer artificial gingival structure and can give more satisfying esthetics and functions, and as a result the patients were able to accept the outcome more fondly, which makes us less than hard to think that it can be a more convenient treatment for the practitioners.

Key Words: Implant fixed prosthesis;CAD/CAM;zirconia;titanium;