Effect of different clip materials of bar attachment on the pocket depth on Tooth- supported overdenture randomized controlled clinical study

Document Type : Original Article

Authors

Lecturer, Removable Prosthodontic Department College of Oral and Dental Surgery, Misr University for Science and Technology, Giza Egypt.

Abstract

Background: Nowadays mandibular tooth overdentures retained by bar attachment are used on a wide scale as a substitute for the conventional complete denture thus further studies are required to verify this replacement.
Methodology: Fourteen patients were randomly categorized into two equal groups. In the first group(Group I) patients received mandibular tooth-supported overdentures retained by metal bar attachment with plastic clip material while in the second group (Group II) patients received mandibular tooth-supported overdentures retained by bar attachment with PEEK clip material. All patients were scheduled for recall visits and pocket depth of around abutment was recorded at the time of loading, six months, and twelve months.
Results: Regarding pocket depth: (Group I) was significantly higher than (Group II) after 6 and 12 months. Data were coded and entered using the statistical package for the Social Sciences (SPSS) version 28 (IBM Corp., Armonk, NY, USA). Data were summarized using mean and standard deviation. Comparisons between groups were done using an unpaired t-test. Comparison over time within the same group was done using paired t-test. P-values less than 0.05 were considered statistically significant.
Keywords: overdenture, bar attachment, clips, abutments mandible, pocket depth
Conclusion: Within the limitations of this study: Tooth-supported overdenture retained by bar attachment with plastic clip is less recommended than tooth-supported overdenture retained by bar attachment with PEEK clip.

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Egyptian Dental Journal
Volume 68, Issue 3 - Serial Number 4
July (Fixed Prosthodontics, Removable Prosthodontics and Dental Materials)
July 2022
Pages 2669-2677

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