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
- 2017.8
- 수록면
- 232 - 239 (8page)
이용수
초록· 키워드
오류제보하기
Objectives: The evaluation of iatrogenic dentinal defects in extracted teeth may be influenced by extraction forces and prolonged dry times. The purpose of this study was to compare the presence of dentinal defects in freshly extracted, periodontally compromised teeth with those in a group of teeth with uncontrolled extraction forces and storage time.
Materials and Methods: The experimental group consisted of eighteen roots obtained from teeth extracted due to periodontal reasons with class II or III mobility. They were kept in saline and sectioned within 1 hour following extraction. The control group consisted of matched root types obtained from an anonymous tooth collection, consistent with previous dentinal defect studies. The slices were obtained at 3, 6, and 9 mm from the apex. The imaging process exposed all specimens to no more than 60 seconds of dry time. The × 12.8 magnification was used for the 9 mm slices and × 19.2 magnification for the 3 mm and 6 mm slices under light-emitting diode (LED) transillumination. The root canal spaces and periodontal tissues were masked to minimize extraneous factors that might influence the evaluators. Chi-square test was used for statistical analysis.
Results: Dentinal defects were detected in 17% of the experimental group teeth, compared to 61% of control teeth (p = 0.015).
Conclusions: LED transillumination assessment of freshly extracted roots with class II or III mobility showed smaller number of dentinal defects than roots with uncontrolled storage time and extraction forces. The use of freshly extracted roots with mobility should be considered for future dental defect assessment studies.
목차
등록된 정보가 없습니다.
참고문헌 (31)
참고문헌 신청
Bier CA / 2009 / The ability of different nickel-titanium rotary instruments to induce dentinal damage during canal preparation / J Endod 35:236~238
Tawil PZ / 2015 / Periapical microsurgery: the effect of root dentinal defects on short- and long-term outcome / J Endod 41:22~27
Karataş E / 2015 / Dentinal crack formation during root canal preparations by the twisted file adaptive, ProTaper Next, ProTaper Universal, and WaveOne instruments / J Endod 41:261~264
Shemesh H / 2010 / Incidence of dentinal defects after root canal filling procedures / Int Endod J 43:995~1000
Topçuoğlu HS / 2014 / The effects of Mtwo, R-Endo, and D-RaCe retreatment instruments on the incidence of dentinal defects during the removal of root canal filling material / J Endod 40:266~270
Tawil PZ / 2015 / Periapical microsurgery: the effect of root dentinal defects on short- and long-term outcome / J Endod 41:22~27
Karataş E / 2015 / Dentinal crack formation during root canal preparations by the twisted file adaptive, ProTaper Next, ProTaper Universal, and WaveOne instruments / J Endod 41:261~264
Shemesh H / 2010 / Incidence of dentinal defects after root canal filling procedures / Int Endod J 43:995~1000
Topçuoğlu HS / 2014 / The effects of Mtwo, R-Endo, and D-RaCe retreatment instruments on the incidence of dentinal defects during the removal of root canal filling material / J Endod 40:266~270
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