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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.
Background:
Parafunctional forces are a potential risk factor for implant-related complications. This study aimed to evaluate the possible relationship of bruxism with implant-related complications and marginal bone loss (MBL).
Methods:
In this prospective cohort study, patients were divided into two groups with and without bruxism, and received single-tooth implants in the posterior mandible. Patients in the bruxer group were requested to use a customized fabricated night guard. Bone quality was also assessed based on CBCT scans. The MBL, crown detachment, and porcelain fracture were evaluated, and clinical assessments were made at the 12-month follow-up.
Results:
Seventy patients were studied in two groups (n = 35 in each group). None of the implants in any of the two groups showed pain, sensitivity, suppuration, exudation, clinically detectable mobility, or peri-implant radiolucency. No significant difference was observed between the two groups in the mean MBL at the 12-month follow-up (p = 0.60). Regarding bone quality, there was no significant difference in the mean MBL among different types of bone qualities (p = 0.66). There were no significant differences regarding crown detachment and porcelain fracture between the two groups either (p = 0.32 and p = 0.30, respectively).
Conclusion:
According to the results of this study, dental implant treatment according to the suggested protocol in bruxers yielded promising outcomes.
