지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.2
- 수록면
- 84 - 93 (10page)
이용수
초록· 키워드
오류제보하기
Purpose: This study evaluated the apical root canal system of maxillary second molars, in which conventional endodontic treatment had failed.
Materials and Methods: One hundred eighteen extracted endodontically failed maxillary second molars were examined to investigate the root canal morphology using clinical photographs. High-resolution cross-sectional images at the 3mm level from the root apices were taken to evaluate the anatomic variations and canal cleanliness. The incidence of anatomic variations and canals containing debris were evaluated statistically.
Results: One (0.85%) maxillary second molar had four separate roots, while 52 (44.07%) had three separate roots. The remaining 65 (55.08%) showed 6 different types of fusion in their roots. As the number of fused roots increased from none to three, the incidence of isthmuses in the cross-sectional images increased significantly from 43.40% to 76.92% in 2-root fusion and 88.46% in 3-root fusion. In addition, the occurrence of less-cleansed canals increased from 22.64% to 38.46% and 53.85%, respectively (p<0.05). Sixty four teeth (54.24%) had 3 canals while 38(32.2%) had additional canals; most of them were located in the MB roots (81.58%). Seventy six (64.41%) had isthmuses in the apical region and 58 out of 76 were located in MB roots.
Condlusions: Logistic analysis indicated that the less division of roots was associated significantly with the occurrence of insufficient cleaning during endodontic treatment (OR=1.765, p<0.05), while the presence of an additional canal showed no association.
Materials and Methods: One hundred eighteen extracted endodontically failed maxillary second molars were examined to investigate the root canal morphology using clinical photographs. High-resolution cross-sectional images at the 3mm level from the root apices were taken to evaluate the anatomic variations and canal cleanliness. The incidence of anatomic variations and canals containing debris were evaluated statistically.
Results: One (0.85%) maxillary second molar had four separate roots, while 52 (44.07%) had three separate roots. The remaining 65 (55.08%) showed 6 different types of fusion in their roots. As the number of fused roots increased from none to three, the incidence of isthmuses in the cross-sectional images increased significantly from 43.40% to 76.92% in 2-root fusion and 88.46% in 3-root fusion. In addition, the occurrence of less-cleansed canals increased from 22.64% to 38.46% and 53.85%, respectively (p<0.05). Sixty four teeth (54.24%) had 3 canals while 38(32.2%) had additional canals; most of them were located in the MB roots (81.58%). Seventy six (64.41%) had isthmuses in the apical region and 58 out of 76 were located in MB roots.
Condlusions: Logistic analysis indicated that the less division of roots was associated significantly with the occurrence of insufficient cleaning during endodontic treatment (OR=1.765, p<0.05), while the presence of an additional canal showed no association.
목차
ABSTRACT
Ⅰ. Introduction
Ⅱ. Material and Methods
Ⅲ. Results
Ⅳ. Discussion
Ⅴ. Conclusions
참고문헌
참고문헌 (31)
참고문헌 신청
[학술지(정기간행물)] - Fariniuk LF / 2003 / Histologic analysis of the cleaning capacity of mechanical endodontic instruments activated by the ENDOflash system / J Endod 29 : 651 ~ 653
[학술지(정기간행물)] - Rodig T / 2002 / Quality of preparation of oval distal root canals in mandibular molars using nickel-titanium instruments / Int Endod J 35 : 919 ~ 928
[학술지(정기간행물)] - Vertucci FJ / 2005 / Root canal morphology and its relationship to endodontic procedures / Endodontic topics 10 : 3 ~ 29
[학술지(정기간행물)] - Hsu YY / 1997 / The resected root surface. The issue of canal isthmuses / Dent Clin North Am 41 : 529 ~ 540
[학술지(정기간행물)] - Weller RN / 1995 / Incidence and position of the canal isthmus. Part 1. Mesiobuccal root of the maxillary first molar / J Endod 21 : 380 ~ 383
[학술지(정기간행물)] - Rodig T / 2002 / Quality of preparation of oval distal root canals in mandibular molars using nickel-titanium instruments / Int Endod J 35 : 919 ~ 928
[학술지(정기간행물)] - Vertucci FJ / 2005 / Root canal morphology and its relationship to endodontic procedures / Endodontic topics 10 : 3 ~ 29
[학술지(정기간행물)] - Hsu YY / 1997 / The resected root surface. The issue of canal isthmuses / Dent Clin North Am 41 : 529 ~ 540
[학술지(정기간행물)] - Weller RN / 1995 / Incidence and position of the canal isthmus. Part 1. Mesiobuccal root of the maxillary first molar / J Endod 21 : 380 ~ 383
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UCI(KEPA) : I410-ECN-0101-2018-515-001759132