The on the basis of 3 dimensional x-ray absorption coefficient data which can the record media which records the disconnection pattern method of presentation of the bone tissue regenerative film and the program which implements this manner, the record media which records the program which implements the disconnection data preparation manner and this manner of the bone tissue regenerative film, the disconnection pattern display device of the bone tissue regenerative film and the disconnection data preparation device of the bone tissue

摘要

PROBLEM TO BE SOLVED: To judge the cut-off shape of a bone tissue reproduction membrane or cut off the membrane before an operation without cutting a gum so as to expose a dental root by obtaining the shape of a periodontal tissue or an expanded shape obtained by expanding the shape of the bone tissue two-dimensionally based on three-dimensional X-ray absorption coefficient data obtained by X-ray CT photographing.;SOLUTION: Based on the three-dimensional X-ray absorption coefficient data obtained by X-ray CT photographing, three-dimensional periodontal tissue shape around the tooth axis S of a tooth 1 or the three-dimensional shape of the bone tissue being the object of treatment are calculated to obtain the expanded shape obtained by expanding this calculated periodontal tissue shape or the shape of the bone tissue two-dimensionally. The expanded shape obtained by this method is displayed as the cut off pattern 41 of the bone tissue reproduction membrane 4.;COPYRIGHT: (C)2002,JPO