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프랙탈 분석을 이용한 치근단병소 치유과정의 골 변화

Other Titles
 Bony change of apical lesion healing process using fractal analysis 
Authors
 이지민  ;  박혁  ;  정호걸  ;  김기덕  ;  박창서 
Citation
 Korean Journal of Oral and Maxillofacial Radiology, Vol.35(2) : 91-96, 2005 
Journal Title
 Korean Journal of Oral and Maxillofacial Radiology (대한구강악안면방사선학회지) 
ISSN
 1229-8212 
Issue Date
2005
MeSH
Fractal Analysis ; Periapical Diseases ; Bony Change
Keywords
Fractal Analysis ; Periapical Diseases ; Bony Change
Abstract
Purpose : To investigate the change of bone healing process after endodontic treatment of the tooth with an apical lesion by fractal analysis. Materials and Methods : Radiographic images of 35 teeth from 33 patients taken on first diagnosis, 6 months, and 1 year after endodontic treatment were selected. Radiographic images were taken by JUPITER Computerized Dental X-ray System? Fractal dimensions were calculated three times at each area by Scion Image PC?program. Rectangular region of interest (30?0) were selected at apical lesion and normal apex of each image. Results : The fractal dimension at apical lesion of first diagnosis (L0) is 0.940?.361 and that of normal area (N0) is 1.186?.727 (p⁄0.05). Fractal dimension at apical lesion of 6 months after endodontic treatment (L1) is 1.076?0.069 and that of normal area (N1) is 1.192?.055 (p⁄0.05). Fractal dimension at apical lesion of 1 year after endodontic treatment (L2) is 1.163?.074 and that of normal area (N2) is 1.225?.079 (p⁄0.05). After endodontic treatment, the fractal dimensions at each apical lesions depending on time showed statistically significant difference. And there are statistically significant different between normal area and apical lesion on first diagnosis, 6 months after, 1 year after. But the differences were grow smaller as time flows. Conclusion : The evaluation of the prognosis after the endodontic treatment of the apical lesion was estimated by bone regeneration in apical region. Fractal analysis was attempted to overcome the limit of subjective reading, and as a result the change of the bone during the healing process was able to be detected objectively and quantitatively.
Files in This Item:
T200500878.pdf Download
DOI
OAK-2005-04664
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Advanced General Dentistry (통합치의학과) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Radiology (영상치의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kee Deog(김기덕) ORCID logo https://orcid.org/0000-0003-3055-5130
Park, Chang Seo(박창서)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/150722
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