Effect of Abutment Screw Design and Crown/Implant Ratio on Preload Maintenance of Single-Crown Screw-Retained Implant-Supported Prostheses.

CONCLUSION: The conical head screw set presented a higher maintenance of applied preload than the flat head screw set. As far as reverse torque is concerned, the crown/implant ratio affects the torque maintenance only in association with a flat head screw set. The use of the tested conical head screw set can help clinicians solve loosening torque, mainly in a situation with a crown/implant ratio > 1.
PMID: 31711081 [PubMed - in process]

Source: International Journal of Oral and Maxillofacial Implants - November 13, 2019 Category: ENT & OMF Tags: Int J Oral Maxillofac Implants Source Type: research