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Year : 2018  |  Volume : 9  |  Issue : 6  |  Page : 278-282

Assessment of survival rate of dental implants in patients with bruxism: A 5-year retrospective study

1 Prosthodontics Division Qaseem Private Colleges, Buraidah, Kingdom of Saudi Arabia
2 Department of Prsothodontics, Sree Sai Dental College and Research Institute, Srikakulam, Andhra Pradesh, India
3 Department of Prosthodontics, Institute of Dental Sciences, Siksha “O” Anusandhan (Deemed to be University), Bhubaneswar, Orissa, India
4 Department of Periodontics, RKDF Dental College and Research Centre, Bhopal, Madhya Pradesh, India
5 Department of Prosthodontics, Kannur Dental College, Anjarekandy, Kannur, Kerala, India
6 Department of Periodontics, Mallareddy Institute of Dental Sciences, Hyderabad, Telangana, India

Correspondence Address:
Dr. Rajkiran Chitumalla
Prosthodontics Division, Qaseem Private Colleges, Buraidah - 51411
Kingdom of Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ccd.ccd_258_18

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Background: Dental implants are associated with failure such as early or late failure. Systemic conditions such as diabetes, hypertension, and bruxism affect the success rate. The present study was conducted to assess complications in dental implants in bruxism patients. Materials and Methods: This 5-year retrospective study was conducted on 450 patients (640 dental implants) who received implants during the period and followed up for 5 years from June 2010 to June 2016. Among these patients, 124 had bruxism habit. Dental radiographs or patients' recalled records were evaluated for the presence of complications such as fracture of implant, fracture of ceramic, screw loosening, screw fracture, and decementation of unit. Results: In 240 males and 210 females, 380 implants and 260 implants were inserted, respectively. The difference was statistically nonsignificant (P = 0.1). A total of 145 screw-type and 130 cemented-type fixations had complications. The difference was statistically nonsignificant (P = 0.5). Complications were seen in single crown (45), partial prostheses (125), and complete prostheses (105). The difference was statistically significant (P = 0.012). The common complication was fracture of ceramic (70) in cemented-type fixation and fracture of ceramic (85) in screw-type fixation. The difference was statistically significant (P = 0.01). Forty-two single crowns showed decementation, 85 partial prostheses had fracture of ceramic/porcelain, and 50 complete prostheses showed fracture of ceramic/porcelain. The failure rate was 42.9%. Survival rate of dental implants in males with bruxism habit was 90% after 1 year, 87% after 2 years, 85% after 3 years, 75% after 4 years, and 72% after 5 years. Survival rate of dental implants in females with bruxism habit was 92% after 1 year, 90% after 2 years, 85% after 3 years, 75% after 4 years, and 70% after 5 years. The difference among genders was statistically nonsignificant (P = 0.21). Conclusion: Bruxism is a parafunctional habit which affects the survival rate of dental implants. There is requirement to follow certain specific protocols in bruxism patients to prevent the developing complications.

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