@article{oai:shinshu.repo.nii.ac.jp:00002163, author = {長田, 紀雄 and 佐藤, 陽一}, issue = {2}, journal = {松本歯学}, month = {Aug}, note = {Etiology of Class II malocclusion is approached by classifying all causes of malocclusion according to the following factors: heredity, developmental cause of unknown origin, trauma, physical agents, habits, disease and malnutrition. It is important to examine all etiology which cause malocclusion, expecially in cases with habitual conditions. This article describes the rationale for successful orthodontic treatment of Class II Division 1 malocclusion with spaced arches. The treatment has been associated with myofunctional therapy and long term observation., application/pdf}, pages = {178--187}, title = {長期的観察を続けた空隙歯列弓を伴うAngle Class II div.1症例}, volume = {18}, year = {1992} }