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Experimental Model of Ligature-Induced Peri-Implantitis in Mice

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Dental-implant inflamed surface area: A quantification and simulation study.

Yumeng Yan¹, Praveen Sharma^2,3,4, Jeanie Suvan⁵

¹Periodontology Unit, Eastman Dental Institute, University College London, London, UK.

Journal of Periodontology

|March 24, 2025

Summary

New scores quantify peri-implantitis inflammation. The dental-implant surface area (DESA) and dental-implant inflamed surface area (DISA) scores accurately measure inflammation around dental implants, aiding diagnosis and treatment.

Keywords:

dental implants inflammation peri‐implantitis

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Area of Science:

Oral Surgery
Periodontology
Biomaterials Science

Background:

Peri-implantitis, an inflammatory oral disease, is increasingly prevalent due to widespread dental implant use.
Current diagnostic frameworks lack objective measures for mucosal inflammatory burden around implants.
Novel scores are needed to quantify peri-implant inflammatory surface area.

Purpose of the Study:

To develop and validate two novel scores for quantifying peri-implant mucosal inflammation.
To establish a method for calculating the dental-implant inflamed surface area (DISA).
To provide an objective assessment of inflammatory burden around dental implants.

Main Methods:

Formulas were developed to calculate dental-implant surface area (DESA) for tapered and cylinder implants.
DESA was compared using probing depth, mucosal recession, and implant morphology data.
DISA was calculated using epithelial/connective tissue areas and bleeding on probing proportions, then validated in clinical cases.

Main Results:

A simulation study of 10,000 implants showed DESA underestimated real surface area by <2%.
The DISA score was developed and applied to 21 peri-implantitis patients.
DESA scores ranged from 54.24 to 400.29 mm², and DISA scores ranged from 36.76 to 400.29 mm².

Conclusions:

Two novel scores, DESA and DISA, were proposed for estimating peri-implant surface area in health and disease.
The DISA score precisely quantifies the inflammatory surface area in peri-implantitis.
Future research should explore microbiome associations and links to systemic health.