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Updated: Jul 19, 2025

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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
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Application of the break-even point to express the bone dynamics around implants
Yoshihiko Hori1, Yoshiyuki Amari2, Hiroyuki Ohnishi1
1Department of Oral Implantology, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, 573-1121, Japan.
Oral and Maxillofacial Surgery
|August 17, 2023
Summary
The break-even point (BEP) concept quantifies bone formation and resorption around implants. Faster BEP indicates quicker bone growth, offering insights into implant osseointegration dynamics.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Bone Biology
Background:
- Understanding bone dynamics around dental implants is crucial for successful osseointegration.
- Bone modeling and remodeling are complex processes influenced by various factors.
Purpose of the Study:
- To apply the break-even point (BEP) concept to analyze bone formation and resorption dynamics around implants.
- To evaluate how different factors influence bone modeling around implants using the BEP.
Main Methods:
- Analysis of published data from human and dog studies on bone densities around implants.
- Assessment of the break-even point (BEP) for bone density (BD).
- BEP was defined as the intersection of new bone formation and old bone resorption lines, expressed in time and bone percentage.
Main Results:
- BEP occurred at 7.9 days (24.5% BD) in marrow compartments and >30 days in cortical compartments.
- Implants on different surfaces showed similar BEP between 9.7–11.2 days (19.1–22.5% BD).
- BEP in the human maxilla occurred after 29–30.4 days (28.3–29.6% BD).
Conclusions:
- The break-even point parameters effectively express bone modeling/remodeling dynamics around implants.
- BEP analysis can reveal the impact of implant models, surface characteristics, and bone quality on osseointegration.
Keywords:
Animal studyBiocompatible materialBone formationCollagen membraneHistologyOsteoclastsSinus floor elevationMore Related Videos
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