This article reviews the findings of 5 original papers in the areas of jaw function published in the Journal of the Japan Prosthodontic Society (J Japan Prosthodontic Soc; Nippon Hotetsu Shika Gakkai Zasshi in Medline/PubMed; issued in Volume 52, 2008). A variety of subjects in relation to body movement associated with mandibular movement, parameters for mandibular movement analysis, system evaluation for a new jaw tracking device and obstructive sleep apnea were examined in the listed articles.