力为咬合时牙体牙周所承受之力,此力来源于口腔颌骨肌—主要是嚼肌和翼内肌所发出之力,但非其全力,仅为该肌所能发出的最大力(咀嚼力)的一部分。牙齿在咬合时用力越大则力愈大。在正常情况下,牙周组织在咬合时无不适感觉,但用力过大,牙周组织会有不适感觉或疼痛。所以牙周组织对力具有一定范围的耐受限度。经验证明:一个人力的大小与个体的年龄、性别及牙齿的健康状况有密切关系。力的正常与否是鉴定评价口腔理功能指标之一。通过的检查可以了解牙体、牙周、咀嚼肌、颞颌关节等组织的健生小 Force is the force that the periodontal body is subjected to during occlusal force, which is derived from the force exerted by the oral mandibular muscles, mainly the muscles of the chewing muscles and the wing muscles, but not their full force, only the maximum Part of the force (masticatory force). When the teeth in the occlusion, the greater the force is greater. Under normal circumstances, periodontal tissue in the bite without discomfort, but the force is too large, there will be periodontal tissue discomfort or pain. Therefore, the periodontal ligament has a certain range of tolerance. Experience has shown that: a man's power and size of the individual's age, gender and dental health are closely related. Efficacy of the normal or not is to identify the evaluation of oral physical function one of the indicators. By  check can understand the teeth, periodontal, masticatory muscle, temporomandibular joint and other tissues of small health