著明に吸収した片側性下顎堤と異常に変形した上顎歯槽堤を有する無歯顎症例とその対応法

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We encountered a very difficult and highly suggestive edentulous case not experienced to date, the existing upper denture rotated horizontally from the median vertical axis of face to the part of angulus oris on a large scale when occluding slightly at the right molar region, and the lower denture depressed greatly to be upset when pressing downwards by a finger on the left lower molar region because of remarkable absorption of the underlyning bearing bone tissues. In the process of newly constructing denturers, the suggetions obtained were as follows : 1) The median line of the upper denture should be decided through the median palatine suture and the incisal papilla even if their positions were dislocated greatly, without referring the median line on the cast judged by appearance. 2) In the restoration for complicated edentulous cases, it is essential to establish occlusion of the dentures regarding the most stabilized area when pressing downwards by fingers the occlusal surface of the existing lower denture or the lower occlusion rim as important. 3) Not only molars of the normal ridge side, but also ones of the side where are not able to secure support from the basal seat of the dentures should provide a slight occlusal contact for constructing the patient's adaptive denture. 4) Esthetic contentment also might be an efficient aid to the patients who are endeavoring after functional contentment, even if they are the aged and males. As described above, we felt strongly through this specific case the necessity of muscle trimming and careful observation of casts, and of confirming the key zone for unilateral balanced occlusion, although they are always important on the construction of any complete dentures.
九州歯科学会の論文
2001-04-25

著明に吸収した片側性下顎堤と異常に変形した上顎歯槽堤を有する無歯顎症例とその対応法

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