Westling L, Helkimo E
Department of Stomatognathic Physiology, Faculty of Odontology, University of Göteborg, Sweden.
J Oral Rehabil. 1992 Sep;19(5):485-94. doi: 10.1111/j.1365-2842.1992.tb01112.x.
Mandibular jaw opening was related with general joint mobility in a non-patient adolescent group. The angular rotation of the mandible at maximum jaw opening was slightly larger in females than in males and significantly larger in hypermobile individuals. No significant relationship between linear measuring of maximal mandibular opening capacity and peripheral joint mobility was found either at active (AROM) or at passive range of mandibular opening (PROM). PROM was strongly correlated to the mandibular length. Clinical signs in the great jaw closer muscles could not be associated to decreased AROM. The mean value of the difference between PROM-AROM (DPA) was 1.2 mm. Frequent clenching and/or grinding was correlated to increased DPA only in hypermobile adolescents (r = 0.49***). Those with DPA exceeding 5mm had all reciprocal clicking.
在非患者青少年组中，下颌开口与一般关节活动度有关。最大开口时下颌的角旋转在女性中略大于男性，在关节活动过度的个体中显著更大。无论是在主动下颌开口（AROM）还是被动下颌开口范围（PROM）时，最大下颌开口能力的线性测量与周围关节活动度之间均未发现显著关系。PROM与下颌长度密切相关。大的下颌闭合肌的临床体征与AROM降低无关。PROM - AROM（DPA）之间差异的平均值为1.2毫米。仅在关节活动过度的青少年中，频繁紧咬牙和/或磨牙与DPA增加相关（r = 0.49***）。DPA超过5毫米的患者均有双侧弹响。
