Chitumalla Rajkiran, Halini Kumari K V, Mohapatra Abhilash, Parihar Anuj Singh, Anand K S, Katragadda Padmavathi
Prosthodontics Division Qaseem Private Colleges, Buraidah, Kingdom of Saudi Arabia.
Department of Prsothodontics, Sree Sai Dental College and Research Institute, Srikakulam, Andhra Pradesh, India.
Contemp Clin Dent. 2018 Sep;9(Suppl 2):S278-S282. doi: 10.4103/ccd.ccd_258_18.
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.
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.
In 240 males and 210 females, 380 implants and 260 implants were inserted, respectively. The difference was statistically nonsignificant ( = 0.1). A total of 145 screw-type and 130 cemented-type fixations had complications. The difference was statistically nonsignificant ( = 0.5). Complications were seen in single crown (45), partial prostheses (125), and complete prostheses (105). The difference was statistically significant ( = 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 ( = 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 ( = 0.21).
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.
牙种植体存在失败风险，如早期或晚期失败。糖尿病、高血压和磨牙症等全身状况会影响成功率。本研究旨在评估磨牙症患者牙种植体的并发症。
本项为期5年的回顾性研究针对450例患者（640颗牙种植体）展开，这些患者在2010年6月至2016年6月期间接受种植体植入，并进行了5年的随访。其中，124例患者有磨牙症习惯。通过牙科X光片或患者的回忆记录评估是否存在种植体骨折、陶瓷骨折、螺钉松动、螺钉骨折和部件松动等并发症。
男性240例，女性210例，分别植入380颗和260颗种植体。差异无统计学意义（P = 0.1）。共有145颗螺钉型和130颗粘结型固定种植体出现并发症。差异无统计学意义（P = 0.5）。单冠（45颗）、局部义齿（125颗）和全口义齿（105颗）均出现并发症。差异有统计学意义（P = 0.012）。常见并发症为粘结型固定中陶瓷骨折（70例）和螺钉型固定中陶瓷骨折（85例）。差异有统计学意义（P = 0.01）。42颗单冠出现部件松动，85颗局部义齿出现陶瓷/瓷质骨折，50颗全口义齿出现陶瓷/瓷质骨折。失败率为42.9%。有磨牙症习惯的男性牙种植体1年后生存率为90%，2年后为87%，3年后为85%，4年后为75%，5年后为72%。有磨牙症习惯的女性牙种植体1年后生存率为92%，2年后为90%，3年后为85%，4年后为75%，5年后为70%。性别差异无统计学意义（P = 0.21）。
磨牙症是一种影响牙种植体生存率的功能异常习惯。磨牙症患者需要遵循特定方案以预防并发症的发生。
