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Published in: Clinical Oral Investigations 5/2022

01-05-2022 | Original Article

Occlusal change in posterior implant-supported single crowns and its association with peri-implant bone level: a 5-year prospective study

Authors: Qian Ding, Qiang Luo, Yajing Tian, Lei Zhang, Qiufei Xie, Yongsheng Zhou

Published in: Clinical Oral Investigations | Issue 5/2022

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Abstract

Objectives

This study aims to analyze the 5-year occlusal change in posterior implant-supported single crowns and the association between the relative occlusal force (ROF) and peri-implant bone level.

Materials and methods

Partially edentulous patients who had received implant-supported single crowns in the posterior region were included. Occlusal examinations with a computerized occlusion analysis system were conducted at 0.5, 3, 6, 12, 24, 36, 48, and 60 months after delivery of the implant-supported single crown. The ROFs of implant-supported single crowns, mesial adjacent teeth, and control natural teeth were recorded. Intraoral periapical radiographs were taken at each follow-up time to evaluate marginal bone level (MBL). Ordinary least square regression was used to analyze the association between ROF and MBL.

Results

Thirty-seven posterior implant-supported single crowns in 33 participants (23.9 to 70.0 years) were followed up for 0.5 to 60 months [(42.4 ± 26.0) months]. The ROF of implant-supported single crowns increased from 2 weeks to 3 months (P < 0.01) and increased continuously between all two sequential time points from 6 to 36 months, with significant differences (P < 0.05). Then ROFs of implant-supported single crowns were significantly higher than those of control teeth at 48 and 60 months (P < 0.05). Regression analysis showed that ROF was significantly associated with MBL with a coefficient of 0.008 (P < 0.05).

Conclusion

The ROFs of posterior implant-supported single crown have significant change during 5 years’ follow-up. The association between ROF and MBL has limited clinical significance.

Trial registration

Chinese Clinical Trial Registry: ChiCTR-ROC-17012240.

Clinical relevance

The occlusion of implant-supported single crowns should be carefully monitored during follow-up examinations, and occlusal adjustment should be considered to prevent overloading.
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Metadata
Title
Occlusal change in posterior implant-supported single crowns and its association with peri-implant bone level: a 5-year prospective study
Authors
Qian Ding
Qiang Luo
Yajing Tian
Lei Zhang
Qiufei Xie
Yongsheng Zhou
Publication date
01-05-2022
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 5/2022
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-022-04394-0

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