Int J Prosthodont 30 (2017), No. 1 12. Jan. 2017
Int J Prosthodont 30 (2017), No. 1 (12.01.2017)
Page 51-53, doi:10.11607/ijp.5010, PubMed:28085980
Influence of Abutment Angle on Implant Strain When Supporting a Distal Extension Removable Partial Dental Prosthesis: An In Vitro Study
Hirata, Kiyotaka / Takahashi, Toshihito / Tomita, Akiko / Gonda, Tomoya / Maeda, Yoshinobu
Purpose: This study evaluated the impact of angled abutments on strain in implants supporting a distal extension removable partial denture.
Materials and Methods: An in vitro model of an implant supporting a distal extension removable partial denture was developed. The implant was positioned with a 17- or 30-degree mesial inclination, with either a healing abutment or a corrective multiunit abutment. Levels of strain under load were compared, and the results were compared using t test (P = .05).
Results: Correcting angulation with a multiunit angled abutment significantly decreased strain (P < .05) when compared with a healing abutment.
Conclusion: An angled abutment decreased the strain on an inclined implant significantly more than a healing abutment when loaded under a distal extension removable partial denture.