Clinical Assessment of Preload Maintenance in the Abutment Screws of Single Posterior Implants After 1 Month of Use.

CONCLUSION: Under the experimental conditions of this study, abutment screws in some bone-level, internal tapered-connection, platform-switching implant systems showed preload loss at 1 month after abutment placement for single posterior implant-based restorations, regardless of implant system or whether abutment screws had been retightened 10 minutes after abutment placement, or implant position (premolar or molar). It is necessary to retorque the abutment screws 1 month after initial torque. The screw-cement-retained prostheses used in this study permit abutment screw retightening at that time and have advantages over traditional methods.
PMID: 33600539 [PubMed - in process]

Source: International Journal of Oral and Maxillofacial Implants - February 20, 2021 Category: ENT & OMF Tags: Int J Oral Maxillofac Implants Source Type: research