Year : 2019

Volume : Volume 10

Issue : Issue 1

Address for correspondence :
Dr. Neha Prokash
nehaprakash91@gmail.com

Abstract

Background:  To evaluate and compare the retention of implant retained mandibular overdenture based on different attachments and locations. Materials and method: A completely edentulous mandibular cast was studied and surveyed to ensure absence of undercut and was finished and polished. Duplication of the cast was done using alginate (Algitex DPI, India) and was poured by modelling wax. Now, the wax model was flasked and processed for the fabrication of the Heat Cure acrylic study model. Ball Attachment (Height 2mm, NM-T1202 Noris medical) (Fig. 6) and Flat Attachment (Height 2mm, NM- T1102 Noris medical) (Fig. 7) was used in the study. The attachments were screwed with the help of  Star Hex Screw Driver  (Length 14mm NM-X7007, Noris medical)  on the implant analogs and caps of  both ball attachment (Fig. 8) and flat attachment (Fig. 9)  were placed on their respective attachments and their height and diameter was measured by using Vernier Caliper. Result: The present shows that the mean retention of mandibular overdenture with implants at A B D E position achieved by Ball attachment was 634.6 N, which was significantly higher  than that of  Flat Attachment 194 N at same position. Conclusion: The retention of mandibular overdenture by Ball and flat attachment at A and E position was found to be more than that of Ball and flat attachment at B and D position.

Keywords: Implant, Overdenture, lacation.