Flanagan Dennis
Private practice, Willimantic, Conn.
J Oral Implantol. 2016 Jun;42(3):305-10. doi: 10.1563/aaid-joi-D-15-00127. Epub 2015 Oct 9.
A hard or coarse diet may impart a substantial off-axial load to dental implant-supported prostheses and may induce a component, implant midbody fracture or late loss of integration. This may be especially true when there is a large crown to implant ratio. A patient who is able to generate an excessive bite force along with chronic cyclic loading with hard or coarse foods may have implant body or component fractures. There are no established parameters for crown to implant ratio or for detrimental bite loads. Implant longevity may be dependent on many factors, including the supporting bone quality and volume, crown to implant ratio, implant width and length, the prosthetic occlusal scheme and bite force/arch location, and the patient's dietary load.
坚硬或粗糙的饮食可能会给牙种植体支持的修复体施加相当大的非轴向负荷,并可能导致部件、种植体中段骨折或后期整合丧失。当冠根比很大时,情况可能尤其如此。能够产生过大咬合力并长期反复食用坚硬或粗糙食物的患者可能会出现种植体主体或部件骨折。目前尚无关于冠根比或有害咬合力的既定参数。种植体的使用寿命可能取决于许多因素,包括支持骨的质量和体积、冠根比、种植体的宽度和长度、修复体的咬合方案以及咬合力/牙弓位置,还有患者的饮食负荷。