Radiographic evaluation of posterior alveolar ridge resorption in implant-retained mandibular overdentures using three different bar modalities

• Published in: International dental & medical journal of advanced research 2017, Vol.3 (1), p.1-6
• Main Authors: Badr, Amr Mohamed Ismail, Hassan, Ahmed Gamal Ahmed
• Format: Article
• Language: English
• Subjects: Clinical trials; Dental implants; Dentistry; Dentures; Patient satisfaction; Prostheses; Transplants & implants
• ISSN: 2455-2577; 2455-2577
• DOI: 10.15713/ins.idmjar.69

There are many types of attachments used for retaining overdentures. The attachments are either solitary or bar attachments. The type and shape of bar and clip attachments are very important regarding the load distribution between implants and posterior residual ridge. The aim of this study was to evaluate the posterior residual ridge resorption in overdenture retained by 3 different types of bar and clip connections (resilient, semi-resilient, and rigid). A total of 18 completely edentulous male patients (age between 50 and 60 years) were selected to have two mandibular implants at the canine region connected with bar then immediate loading was done. The patients divided randomly into 3 equal groups to receive 3 different types of bar and clip connections. Orthopantography was used to measure the resorbed posterior mandibular ridge. The collected data were tabulated and statistically analyzed. There was no significant difference between all the groups at the 1st and 2nd intervals regarding the posterior alveolar ridge reduction. While there was a significant difference within each group between the mean values of the 1st and 2nd intervals as P value was >0.05. Under the limitation of this study, it was concluded that: (1) Two mandibular implants connected with bar is considered a viable treatment option in mandibular edentulism, (2) the type and shape of the bar and clip connection do not significantly affect the posterior residual ridge resorption within the 1-year follow-up period. The clinical significance of this study was evaluating the best type of bar and clip connection which is recommended in overdenture cases regarding the preservation of posterior alveolar ridge.