Effect of Opposite Tooth Condition on Marginal Bone Loss around Submerged Dental Implants: A Retrospective Study with a 3-Year Follow-Up

Odontuya Dorj, Hsi-Kuei Lin, Eisner Salamanca, Yu-Hwa Pan, Yi-Fan Wu, Yung-Szu Hsu, Jerry C-Y Lin, Chin-Kai Lin and Wei-Jen Chang
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Odontuya Dorj: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Hsi-Kuei Lin: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Eisner Salamanca: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Yu-Hwa Pan: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Yi-Fan Wu: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Yung-Szu Hsu: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Jerry C-Y Lin: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Chin-Kai Lin: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
Wei-Jen Chang: School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan

IJERPH, 2021, vol. 18, issue 20, 1-12

Abstract: Background: The objective of this study was to evaluate the effects of opposite tooth conditions on change in marginal bone level (MBL) around submerged dental implants. Materials and methods: The study included healthy patients with one or two implants. Structures opposite implants were either natural teeth (NT) or fixed restorations (FRs). MBLs were measured on digital periapical radiographs at the mesial and distal aspects of each implant. Results: Sixty implants were inserted by the 3-year follow-up. Mean MBLs for NT were 0.21 ± 0.33 mm before prosthetic loading and 0.30 ± 0.41 mm 3 years later ( p = 0.001). Mean MBLs with FRs were 0.36 ± 0.45 mm before loading and 0.53 ± 0.50 mm 3 years later ( p < 0.001). Changes in mean MBL from the 6-month follow-up to the 1- and 3-year follow-ups were statistically significant ( p < 0.01) for implants opposite NT. However, changes in mean MBL from the 6-month follow-up to the 1-year ( p = 0.161) and 3-year follow-ups ( p = 1.000) were not significant for implants opposite FRs. Between baseline and the 3-year follow-up, MBL change was relatively small and did not differ regarding NT and FRs. Conclusion: Bone loss was greater if submerged dental implants were opposed by FRs. MBLs around submerged implants continued to change after 3 years if NT opposed implants.

Keywords: submerged dental implants; marginal bone level; opposing condition; natural teeth; fixed restoration (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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