各種face-bowによるface-bow transferの臨床評価 : 第2報 無歯顎者について
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概要
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Recently occlusion becomes a topic in dentistry. Complete denture service requires not only the functional requirement but also the application of the anatomical, physiological and pathological reqirements. The occlusal balance on restoration of which are given on articulator, should be caused same as in patient mouth is most important keeping the gnatho-stomatological system healthy. The major concern is for the prevention of further destruction of oral tissues and structures as a result of wearing complete dentures and for the care of oral health of edentulous patients. To accomplish this objectives, the occlusal relationship of patient's mouth should be exactly reproduced on articulator. Thus the face-bow is used to orient the upper cast the articulator. The reproduceability of upper cast on articulator by face-bow transfer were evaluated on T.M.J. articulator (using true hinge axis points), Dentatus articulator (using arbitrary condyle points) and Whip-mix articulator (using auditory meatus). The measurements are done on our developed the three dimensional gnathometer. The face-bow transfers are done from a manikin and from a complete denture patient of age at fifty-five. An experienced operator of this face-bow transfer is the author and an unexperienced operator of this procedure is used a dental senior student. The data are compared of reproduceability of upper cast on articulator between a manikin and a complete denture patient, and between an experienced and an unexperienced operator. Also the reproduceability of using three base plate materials by face-bow transfer are evaluated. The following conclusion are obtained. 1. The results of using base plate materials by face-bow transfer on manikin by an experienced operator, the reproduce-ability of upper cast on articulator are arranged in superior orders as follow ; Self-curing acrylic resin > Shellac base plate > Baseplate wax. 2. The results of using base plate materials by face-bow transfer on human subject by an experienced operator, the reproduceability of upper cast on articulator are arranged in superior orders as follow ; Self-curing acrylic resin > Shellac base plate > Baseplate wax. 3. The results of face-bow transfer on manikin by an experienced operator, the reproduceability of upper cast on articulator are arranged in superior orders as follow ; T.M.J. articulator > Whip-mix articulator > Dentatus articulator. 4. The results of face-bow transfer on human subject by an experienced operator, the reproduceability of upper cast on articulator are arranged in superior orders as follow ; Whip-mix articulator > T.M.J. articulator > Dentatus articulator. 5. The results of face-bow transfer on human subject by an unexperienced operator, the reproduceability of upper cast on articulator are arranged in superior orders as follow ; T.M.J. articulator > Whip-mix articulator > Dentatus articulator. 6. The results of face-bow transfer by an experienced operator on manikin are always superior reproduceability than the results on human subject. 7. The results of face-bow transfer on human subject by an experienced operator are always su-perior reproduceability than the results by an unexperienced operator.
- 社団法人日本補綴歯科学会の論文
- 1977-05-31
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- 各種face-bowによるface-bow transferの臨床評価 : 第2報 無歯顎者について