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Related Experiment Video

Updated: Apr 26, 2026

Oral Biofilm Formation on Different Materials for Dental Implants

Oral Biofilm Formation on Different Materials for Dental Implants

Published on: June 24, 2018

Marginal bone loss around implants - What does it mean?

Carlotta Dionigi¹, Kostas Bougas¹, Tord Berglundh¹

¹Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.

Periodontology 2000

|April 24, 2026

Summary

This summary is machine-generated.

Marginal bone level (MBL) changes around dental implants are typically minimal, especially after the initial healing phase. Most bone loss occurs early, with subsequent changes usually within 1 mm, but progressive loss defines peri-implantitis.

Keywords:

dental implant marginal bone loss peri‐implantitis

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Area of Science:

Dental implantology
Periodontology
Biomaterials science

Background:

Peri-implant marginal bone levels (MBL) are critical indicators of dental implant success.
Monitoring MBL changes assesses the long-term integrity of tissues supporting implants.

Purpose of the Study:

To review evidence on MBL changes around dental implants.
Focus on temporal patterns, assessment methods, and clinical interpretation of MBL data.

Main Methods:

Narrative review of literature.
Included pre-clinical studies, observational studies, and clinical trials.
Prioritized population-based datasets and randomized controlled trials with radiographic MBL assessment.

Main Results:

Most MBL change occurs early post-implant/abutment placement, typically under 1 mm.
Post-loading MBL changes are limited (0.1-0.3 mm in year one), with minimal subsequent alterations.
Radiographic assessment has errors ≤0.5 mm; 15-25% of implants show >1 mm bone loss.

Conclusions:

MBL changes are generally limited for most dental implants.
Alterations result from biological, mechanical, and host factors.
Interpreting MBL requires considering assessment methods and peri-implant disease, as progressive loss indicates peri-implantitis.