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Does Bruxism Affect Marginal Bone Level around Single Tooth Implants in the Posterior Mandible?
Reza Tabrizi1, Mahdie Rasaei2, Hamidreza Moslemi1
1Department of Oral and Maxillofacial Surgery, Dental School, Shahid Beheshti University of Medical Sciences, Danshjoo BLVD, Velenjak, Shahid, Chamran Highway, 1983963113 Tehran, Iran.
Journal of Maxillofacial and Oral Surgery
|March 10, 2023
Summary
This study found that dental implants in patients with bruxism (teeth grinding) had similar outcomes to those without bruxism, showing no significant differences in marginal bone loss or complications when using a night guard.
Area of Science:
- Dental Implantology
- Periodontology
- Prosthodontics
Background:
- Parafunctional forces, such as bruxism, are potential risk factors for dental implant complications.
- Understanding the impact of bruxism on implant success is crucial for patient management.
Purpose of the Study:
- To investigate the relationship between bruxism and implant-related complications.
- To evaluate the effect of bruxism on marginal bone loss (MBL) around dental implants.
Main Methods:
- A prospective cohort study involving 70 patients receiving single-tooth implants in the posterior mandible.
- Patients were divided into groups with and without bruxism; bruxers used a custom night guard.
- Marginal bone loss, crown detachment, and porcelain fracture were assessed at 12-month follow-up via CBCT scans and clinical evaluation.
Main Results:
- No significant differences in mean marginal bone loss (MBL) were observed between bruxer and non-bruxer groups at 12 months (p=0.60).
- Bone quality did not significantly impact MBL (p=0.66).
- Rates of crown detachment (p=0.32) and porcelain fracture (p=0.30) were also not significantly different between the groups.
Conclusions:
- Dental implant treatment following a specific protocol for patients with bruxism shows promising outcomes.
- Bruxism, when managed with appropriate protective measures, does not appear to increase the risk of implant complications or MBL.

