1Lecturer, Prosthodontics, Faculty of Dentistry, Pharos University, Alex, Egypt
2Associate Professor, Faculty of Dentistry, Minia University, Minia, Egypt
3Professor, Prosthodontics, Faculty of Dentistry, Minia University, Minia, Egypt
*Corresponding Author: Sherif Abdelhamid, Lecturer of Prosthodontics, Pharos University, Canal el Mahmoudia st, Beside Green Plaza Complex, Alex Governorate, Phone: +20 01006557773, Email: Sherif.abdelhamid@pua.edu.eg
Online published on 13 November, 2019.
Bone resorption of the posterior ridge area considered as a major problem due to overdenture rotation during function.
The aim of this study was to compare the effect of using a distal extension bar in two implant supported mandibular overdentures on the posterior ridge area in two groups of completely edentulous patients receiving two implants in the mandibular canine region
Twelve completely edentulous patients were assigned randomly into two equal groups, groupI patients received an implant supported overdenture with metallic bar attachment with bilateral posterior extension, in groupII patients received an implant supported overdenture with metallic bar attachment with no posterior extension. Posterior ridge resorption was measured radiographically.
Results showed non-significant decrease in the posterior ridge resorption between the two groups.
Conclusion bars with distal extensions showed non-significant decrease in the posterior ridge resorption than bars with no distal extension.
Implant overdenture, distal extension bar, overdenture rotation
