"Technical complications" serve as a collective term for mechanical damage to the implant/implant components and supra-structures. One of the key elements impacting osseointegration is the stability of the connection between the fixture and the abutment. In particular, it may be difficult and complicated to achieve a passive fit when restoring several, non-parallel, and splinted implants. In these clinical situations, non-engaging abutments are one of the several types of abutment connections that are available and are frequently utilized in multi-unit cases where they need to have a passive fit and not exert too much stress on the implants [71]. However, limited evidence is available on the stress distribution of these type of abutments. For this reason, using finite element analysis, a recent study aimed to evaluate the biomechanical characteristics of a new EZ-post non-engaging abutment system of a BlueDiamond® implant (BD group; Megagen, Bedfordshire, UK), compared to a similar system of an AnyOne implant (AO group; Megagen, Bedfordshire, UK) [72]. On the basis of the obtained results, the authors concluded that the new EZ-post non-engaging abutment of the BD implant may be used in clinical settings in a manner similar to that of the AO abutment system. Indeed, results showed that the fixture and the stress distribution, at the level of surface where the fixture and the abutment make contact, were lower in the AO group than in the BD group. Nevertheless, at the same time, the AO group had a greater incidence of abutment fracture, compared to the BD group. In order to obtain properly osseointegrated implants, new surface treatments are being introduced as well as new handpieces.
71. Dogus, S.M.; Kurtz, K.S.; Watanabe, I.; Griggs, J.A. Effect of Engaging Abutment Position in Implant-Borne, Screw-Retained Three-Unit Fixed Cantilevered Prostheses. J. Prosthodont. 2011, 20, 348–354. [Google Scholar] [CrossRef]
72. Byun, S.-H.; Seo, J.-H.; Cho, R.-Y.; Yi, S.-M.; Kim, L.-K.; Han, H.-S.; On, S.-W.; Kim, W.-H.; An, H.-W.; Yang, B.-E. Finite Element Analysis of a New Non-Engaging Abutment System for Three-Unit Implant-Supported Fixed Dental Prostheses. Bioengineering 2022, 9, 483. [Google Scholar] [CrossRef]
https://www.mdpi.com/2306-5354/10/7/820
이 글은 네이버 블로그에서 가져온 글입니다. 원문: blog.naver.com/surgeon
답글 남기기