Immediate Tooth Replacement Therapy in Postextraction Sockets: A Comparative Prospective Study on the Effect of Variable Platform-Switched Subcrestal Angle Correction Implants.

Immediate Tooth Replacement Therapy in Postextraction Sockets: A Comparative Prospective Study on the Effect of Variable Platform-Switched Subcrestal Angle Correction Implants. Int J Periodontics Restorative Dent. 2020 Jul/Aug;40(4):509-517 Authors: Chu SJ, Saito H, Östman PO, Levin BP, Reynolds MA, Tarnow DP Abstract Immediate tooth replacement therapy (ITRT), ie, immediate implant placement and provisional restoration in postextraction sockets, has been shown to achieve favorable outcomes in reference to soft tissue stability and esthetics. However, avoiding socket perforation with uniaxial implants in the anterior maxilla can be challenging due to the inherent anatomy. Dual or co-axis subcrestal angle correction (SAC) implants have been developed to change the restorative angle of the clinical crown restoration subcrestally at the implant-abutment interface to enhance the incidence of screw-retained definitive restorations. An additional benefit of this macrodesign implant feature is variable platform switching (VPS) that increases soft tissue gap distance above the implant platform. The purpose of this prospective study on ITRT in maxillary anterior postextraction sockets was to investigate the effect of SAC with VPS (SAC/VPS) compared to conventional platform-switch-design implants (PS) relative to ridge dimension stability and peri-implant soft tissue thickness. A total of 29 patients had undergone ITRT and received either a P...
Source: International Journal of Periodontics and Restorative Dentistry - Category: Dentistry Tags: Int J Periodontics Restorative Dent Source Type: research