抄録
Despite an abundant published literature on the morphology and function of jaws in the realm of dentistry, their studies from an orthodontic point of view are yet relatively few, detailed research on the movement of jaw being particularly scanty in this field.
Of the previous studies by the native investigators, changes in the jaw articulation between the maxillary and mandibular movements were reported by OTA (1936), radiological study on the jaw articulation of mandibular distal occlusal subjects by TSUIKI (1937) and, in their wake, KAMIYAMA (1959) and TOKURA (1961) respectively published their research results on the relationship between mandibular resting position and jaw movement in terms of Thompson's function analytical method. In recent years, ISHIDA et al. (1972) published an oblique cephalography of jaw articulation and FUJII et al. (1972) on its application to orthodontic treatment, thus paving the way for a clinical application on the basis of normal and oblique cephalograms (1973).
In 1973, the present author, ANDO et al. studied the backward movement of jaw in quantitative terms and the author reported on analyses of the forward and backward movement of jaw by use of oblique cephalography (1974).
In the present study, the author was concerned Mith several orthodontic considerations based on the previous findings with a particular reference to the forward movement of jaw.
