Two canine tooth supported overdenture with ready-made attachments (3 year prospective study)

Abstract

Purpose: To study the effect of two ready-made intra-radicular cemented attachments on abutment teeth periodontium of two canine tooth supported mandibular overdenture (OD) in 3 years study period. Materials and Methods: Ten patients with edentulous maxilla & a mandibular arch with only two canines remaining were selected based on certain criteria. All patients received maxillary complete dentures and an attachment-retained mandibular OD ; 1) Group [A] received magnetic attachment-retained OD, and 2) Group [B] received O-ring attachment-retained OD. Modified Gingival index (MGI), clinical attachment loss (CAL) and marginal bone changes (MBC) were investigated along a 3 years follow up period. Results: MGI results showed no statistically significant difference both in inter- & intra-group results. CAL results showed significant differences between successive periods of the same group with no difference between the two groups in comparable periods. Comparison of ∆ CAL values between groups in comparable periods also showed no statistical difference, but the sum of ∆ CAL in all 3 years showed statistical difference. Comparison of ∆ MBC values between groups in comparable periods showed statistical difference in the 2nd & 3rd follow-ups as well as in all 3 years combined. ∆ MBC & ∆ CAL, showed a weak positive correlation coefficient 0.368 in group 1, and a strong positive correlation 0.942 in group 2. Conclusion: It can be concluded that the two canine-supported mandibular overdenture, retained either by ball and socket or magnetic attachments, is an acceptable treatment modality with predictable clinical results from a periodontal point of view.