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Published in: Systematic Reviews 1/2022

Open Access 01-12-2022 | Bone Defect | Research

Bone defect development in experimental canine peri-implantitis models: a systematic review

Authors: A. Solderer, M. de Boer, D. B. Wiedemeier, M. Solderer, C. C. Liu, P. R. Schmidlin

Published in: Systematic Reviews | Issue 1/2022

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Abstract

Purpose

To provide a systematic overview of preclinical research regarding bone defect formation around different implant surfaces after ligature-induced peri-implantitis models in dogs. Two focused questions were formulated: ‘How much bone loss can be expected after a certain time of ligature induced peri-implantitis?’ and ‘Do different implant types, dog breeds and study protocols differ in their extent of bone loss?’

Materials and methods

A systematic literature search was conducted on four databases (MEDLINE, Web of Science, EMBASE and Scopus). Observations, which consisted of bone defects measured directly after ligature removal in canine models, were included and analysed. Two approaches were used to analyse the relatively heterogeneous studies that fulfilled the inclusion criteria. First, separate simple linear regressions were calculated for each study and implant surface, for which observations were available across multiple time points. Second, a linear mixed model was specified for the observations at 12 weeks after ligature initiation, and assessing the potential influencing factors on defect depth was explored using lasso regularisation.

Results

Thirty-six studies with a total of 1082 implants were included after. Bone loss was determined at different time points, either with clinical measurements radiographically or histologically. Different implant groups [e.g. turned, sand-blasted-acid-etched (SLA), titanium-plasma-sprayed (TPS) and other rough surfaces] were assessed and described in the studies. A mean incremental defect depth increase of 0.08 mm (SD: −0.01–0.28 mm) per week was observed. After 12 weeks, the defect depths ranged between 0.7 and 5 mm. Based on the current data set, implant surface could not be statistically identified as an essential factor in defect depth after 12 weeks of ligature-induced peri-implantitis.

Conclusion

Expectable defect depth after a specific time of ligature-induced peri-implantitis can vary robustly. It is currently impossible to delineate apparent differences in bone loss around different implant surfaces.
Appendix
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Metadata
Title
Bone defect development in experimental canine peri-implantitis models: a systematic review
Authors
A. Solderer
M. de Boer
D. B. Wiedemeier
M. Solderer
C. C. Liu
P. R. Schmidlin
Publication date
01-12-2022
Publisher
BioMed Central
Keyword
Bone Defect
Published in
Systematic Reviews / Issue 1/2022
Electronic ISSN: 2046-4053
DOI
https://doi.org/10.1186/s13643-022-02075-3

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