Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.
Clin Implant Dent Relat Res. 2019 Feb;21(1):138-144. doi: 10.1111/cid.12697. Epub 2018 Nov 19.
The knowledge of the potential risk factors associated with implant loss is crucial for dental clinicians, but the opinions about the risk factors are still diverse and controversial.
This retrospective study assessed the risk factors associated with implant loss, especially that in the maxillary molar location.
From January 2015 to March 2017, 4338 Chinese patients received 6977 implants at Nanjing Stomatological Hospital. Information on patient age, gender, bone grafting procedure, implant location, length and diameter, and the records of lost implants were obtained. The Kaplan-Meier method and log-rank test were used to conduct a survival function analysis. Chi-square test and multivariate Cox regression analysis were used to identify risk factors related to implant loss.
The cumulative survival rate (CSR) after 0-32 months of observation period for all implants was 97.76%, and the CSR for maxillary molar implants was 97.00%. Maxillary molar implants showed a significantly lower CSR than the other implants (P < .05). Male sex, short implants (<10 mm) were considered as risk factors for implant loss. However, male sex and bone grafting procedure were regarded as risk factors for maxillary molar implant loss, which was slightly different from the result of all implants.
Male sex, short implants (<10 mm) and maxillary molar location were considered as potential risk factors for implant loss, whereas male sex and bone grafting procedure were significantly associated with implant loss in maxillary molar location.
了解与种植体失败相关的潜在风险因素对口腔临床医生至关重要，但关于风险因素的意见仍然存在分歧和争议。
本回顾性研究评估了与种植体失败相关的风险因素，尤其是上颌磨牙部位的风险因素。
本研究纳入了 2015 年 1 月至 2017 年 3 月在南京口腔医院接受种植治疗的 4338 名中国患者，共植入 6977 枚种植体。记录患者年龄、性别、植骨手术、种植体部位、长度和直径，以及种植体丢失的记录。采用 Kaplan-Meier 法和对数秩检验进行生存函数分析，采用卡方检验和多因素 Cox 回归分析确定与种植体失败相关的风险因素。
在 0-32 个月的观察期内，所有种植体的累积生存率（CSR）为 97.76%，上颌磨牙种植体的 CSR 为 97.00%。上颌磨牙种植体的 CSR 明显低于其他种植体（P <.05）。男性、短种植体（<10 mm）被认为是种植体失败的危险因素。然而，男性和植骨手术被认为是上颌磨牙种植体失败的危险因素，这与所有种植体的结果略有不同。
男性、短种植体（<10 mm）和上颌磨牙部位被认为是种植体失败的潜在危险因素，而男性和植骨手术与上颌磨牙部位的种植体失败显著相关。
