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악교정수술을 위한 석고모형 수술시의 계측 오차

Other Titles
 THE ACCURACY OF MEASUREMENTS DURING MODEL SURGERY FOR ORTHOGNATHIC PLANNING 
Authors
 이상휘 ; 이승훈 ; 원동환 ; 주현호 
Citation
 Journal of the Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회지), Vol.27(1) : 37~45, 2001 
Journal Title
 Journal of the Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회지) 
ISSN
 1225-1585 
Issue Date
2001
Abstract
The errors in orthognathic surgery can occur during the preoperative preparations including the model surgery, but till now there's been some lack of reserches about them. So we wanted to verify the accuracies in measurements used in model surgery. We compared the accuracy of measurements by vernier calipers, which has been the main measurement tool for conventional model surgery, and that by height gauge, which is recently claimed to be more accurate, with 3 dimensional coordinate analyzer. We could have following results and have a plan to use them for the invention of new model surgery techniques. 1. The measurement errors in Group 1, which mean the difference between 'the measurements by 3-D analyzer' and 'the measurements by height gauge', were small enough with the range of 0.1∼0.2㎜ in all planes. 2. The mean error in Group 2, which is the differences between the measurements of 3-D analyzer and those of vernier calipers, was 1.1㎜. 3. The measurement errors in Group 2 were variable according to the factors including the differences of individuality and expertness of each measurers. But in case of Group 1, they were small and not variable by the expertness. 4. The measurements were more accurate at the points in anterior teeth than in molar teeth in Group 1 and 2. 5. The errors after model surgery increased remarkably, compared with those before surgery in Group 2. And the situation was different in Group 1 in that errors decreased after surgery. According to these results, it assumed that the measurements with height gauge during the model surgery for orthognathic surgery are accurate enough and can be maintained, regardless of complexity of models, individuality, or expertness of measurers.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/142069
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Oral and Maxillofacial Surgery
Yonsei Authors
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