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首页> 外文期刊>Acta Stomatologica Croatica >Overloading of Dental Implants: a Myth or Reality?
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Overloading of Dental Implants: a Myth or Reality?

机译：种植牙超负荷：是神话还是现实？

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INTRODUCTION: Dental implants have reported success rates of over 90% over long periods of time. However, failures still occur and seem to be unpredictable. One factor that is increasingly considered a strong candidate in failure of dental implants is occlusal loading. Overloading of dental implants during functional and parafunctional activity has been extensively discussed from the clinical point of view, but little scientific evidence. AIM: The aim of this article is to review literature related to loading and overloading implants through masticatory and parafunctional activity, in order to attempt to clarify causality of overload in relation to implant failure. Materials and Methods: All types of publications, published in English up to December 2001 were included. Pubmed search was done using various keywords and the “related article” feature. All identified publications and in vivo studies were reviewed but case studies were excluded. RESULTS AND DISCUSSION: Osseointegrated implants can fail due to very high occlusal load under experimental conditions. However, the safe and the overload levels are not known. What is clear is that loss of osseointegration is more frequent in early implant loss in the presence of micromotion. Apart from this, it is difficult to find a clear relationship between loading and in vivo tissue response. CONCLUSION: Within the context of the published literature, the consensus on overloading of dental implants is still an unresolved issue. It can be concluded that more research is required to reach a better understanding on the relationship between overload and interfacial biomechanics. Nevertheless, the clinician should be aware that increased loading, associated with parafunctional activities, has a higher risk of biomechanical complications.
机译：简介：牙科植入物在长期内的成功率超过90％。但是，故障仍然会发生并且似乎是不可预测的。越来越多的人认为牙种植体失败的一个重要因素是咬合负荷。从临床观点出发，在功能和副功能活动期间牙植入物的超负荷已被广泛讨论，但很少有科学证据。目的：本文的目的是回顾与咀嚼和辅助功能活动有关的负载和超负荷植入物的文献，以试图阐明与植入物衰竭有关的超负荷因果关系。材料和方法：包括截至2001年12月以英文出版的所有类型的出版物。使用各种关键字和“相关文章”功能进行了公开搜索。审查了所有已确定的出版物和体内研究，但排除了案例研究。结果与讨论：由于在实验条件下咬合力非常高，骨整合植入物可能会失败。但是，安全和过载等级未知。清楚的是，在存在微动的情况下，骨整合的丢失在早期植入物丢失中更为常见。除此之外，很难找到负载与体内组织反应之间的明确关系。结论：在已发表文献的背景下，关于牙种植体超负荷的共识仍未解决。可以得出结论，需要进行更多的研究才能更好地了解过载与界面生物力学之间的关系。尽管如此，临床医生应意识到与超功能活动相关的负荷增加具有更高的生物力学并发症风险。

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