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The prosthetic abutment height can affect marginal bone loss around dental implants
Bo-Ah Lee1, Byoung-Heon Kim1, Helen H I Kweon1
1Department of Dentistry, Periodontology, National Health Insurance Corporation Ilsan Hospital, Goyang, Gyeonggi-do, Republic of Korea.
Clinical Implant Dentistry and Related Research
|July 27, 2018
Summary
Higher prosthetic abutment height in dental implants is associated with less marginal bone loss (MBL). Optimal abutment height should not exceed 4 mm for better implant success and reduced MBL.
Area of Science:
- Dental Implantology
- Periodontology
- Prosthodontics
Background:
- Marginal bone loss (MBL) is a key factor in dental implant success.
- The peri-implant biological width influences MBL, but the crown/abutment gap's role is less understood.
Purpose of the Study:
- To investigate the relationship between prosthetic abutment height and marginal bone loss (MBL) around dental implants.
Main Methods:
- Retrospective analysis of 273 implants from 145 patients (2009-2014).
- Measurement of abutment height and bone levels using digital panoramic radiographs.
- Correlation analysis using Spearman's test (P < .05).
Main Results:
- A significant negative correlation was found between abutment height and MBL (P < .05).
- Increased abutment height correlated with decreased prevalence and mean MBL.
Conclusions:
- Higher prosthetic abutment height is linked to reduced marginal bone loss.
- An abutment height not exceeding 4 mm is recommended to minimize MBL.
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