Abstract | PURPOSE: METHODS: A total of 313 patients who had been treated with RPDs, including rigid retainers and major connectors, were divided into two groups: T2D and non-T2D. The periodontal parameters and radiographic bone heights of the abutment teeth were evaluated at baseline and at a 5-year examination during supportive periodontal therapy (SPT). For patients with accessible standardized radiographs, bone density was analyzed based on the gray level (GL) using digital subtraction radiography (n = 83). RESULTS: Overall, 739 abutment teeth (86 in the T2D group) of 235 patients (25 in the T2D group) were analyzed, and 95.0% (94.2% in the T2D group, and 95.2% in the non-T2D group) were maintained. The mean probing pocket depth significantly increased in both groups (p < 0.001). There were significant changes in the radiographic bone height (p = 0.038) and GL on the side of the denture base area (p = 0.048) in the T2D group compared to those in the non-T2D group. CONCLUSION: Regardless of T2D, RPDs with rigid retainers and major connectors could prevent the progression of periodontal disease and successfully maintain most of the abutment teeth during 5-years of SPT. However, T2D may be significantly associated with loss of bone height reduction and density on the side of the denture base area.
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Authors | Chie Watanabe, Junichiro Wada, Tomiharu Nagayama, Hirofumi Uchida, Koji Mizutani, Richard M Foxton, Yo Shibata, Noriyuki Wakabayashi |
Journal | Journal of prosthodontic research
(J Prosthodont Res)
Vol. 66
Issue 1
Pg. 117-123
(Jan 11 2022)
ISSN: 2212-4632 [Electronic] Japan |
PMID | 34108298
(Publication Type: Journal Article)
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Topics |
- Dental Abutments
- Denture, Partial, Removable
- Diabetes Mellitus, Type 2
- Humans
- Periodontal Diseases
- Retrospective Studies
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