Valencia University Medical and Dental School, Valencia, Spain.
Med Oral Patol Oral Cir Bucal. 2011 Jul 1;16(4):e514-7. doi: 10.4317/medoral.16.e514.
The aim of the study was to examine articles published on risk factors associated with early failure of dental implants. We conducted a search on PubMed for articles published between January 2000 and December 2009 using the keywords 'dental implants' and 'early failure'. Seven studies that specified the number of early failed implants and studied the associated risk factors were included. Early failures are caused by the inability of tissue to establish osseointegration prior to prosthetic restoration; however the causal factors and mechanisms are unclear. In the reviewed literature there was a higher percentage of early than late failures; nevertheless, few articles were found that analyzed risk factors associated with early implant failure. In the majority of studies, statistically significant factors associated with early implant failure were smoking, quantity and quality of bone, and posterior implant location. The low number of studies in the literature does not allow definitive conclusions to be drawn.
本研究旨在探讨与牙种植体早期失败相关的危险因素的文章。我们在 PubMed 上进行了检索，使用关键词“dental implants”和“early failure”，检索了 2000 年 1 月至 2009 年 12 月期间发表的文章。纳入了 7 项明确规定早期失败种植体数量并研究相关危险因素的研究。早期失败是由于在修复体植入之前组织无法建立骨整合；然而，因果因素和机制尚不清楚。在已审查的文献中，早期失败的比例高于晚期失败；然而，很少有文章分析与早期种植体失败相关的危险因素。在大多数研究中，与早期种植体失败相关的统计学显著因素是吸烟、骨量和质量以及种植体的后牙位置。文献中研究数量较少，无法得出明确的结论。
