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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
- 2016.1
- 수록면
- 22 - 28 (7page)
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초록· 키워드
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Objectives The goal of this study was to compare the density of gutta-percha root fillings obturated with the following techniques: cold lateral (CL) compaction, ultrasonic lateral (UL) compaction, and warm vertical (WV) compaction.
Materials and Methods Thirty-three extracted mandibular first molars, with two separate mesial canals in each, were selected. After instrumentation, the canals were stratified into three groups based on canal length and curvature, and underwent obturation with one of the techniques. No sealer was used in order to avoid masking any voids. The teeth were imaged pre- and post-obturation using micro-computed tomography. The reconstructed three-dimensional images were analyzed volumetrically to determine the amount of gutta-percha present in every 2 mm segment of the canal. P values < 0.05 were considered to indicate statistical significance.
Results The overall mean volume fraction of gutta-percha was 68.51 ± 6.75% for CL, 86.56 ± 5.00% for UL, and 88.91 ± 5.16% for WV. Significant differences were found between CL and UL and between CL and WV (p < 0.05), but not between UL and WV (p = 0.526). The gutta-percha density of the roots treated with WV and UL increased towards the coronal aspect, but this trend was not noted in the CL group.
Conclusions WV compaction and UL compaction produced a significantly denser gutta-percha root filling than CL compaction. The density of gutta-percha was observed to increase towards the coronal aspect when the former two techniques were used.
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참고문헌 (29)
참고문헌 신청
Schilder H. / 1967 / Filling root canals in three dimensions / Dent Clin North Am 11:723~744
Lea CS / 2005 / Comparison of the obturation density of cold lateral compaction versus warm vertical compaction using the continuous wave of condensation technique / J Endod 31:37~39
Gulabivala K / 1998 / An in vitro comparison of thermoplasticised gutta-percha obturation techniques with cold lateral condensation / Endod Dent Traumatol 14:262~269
Whitworth J. / 2005 / Methods of filling root canals: principles and practices / Endod Topics 12:2~24
Collins J / 2006 / A comparison of three gutta-percha obturation techniques to replicate canal irregularities / J Endod 32:762~765
Lea CS / 2005 / Comparison of the obturation density of cold lateral compaction versus warm vertical compaction using the continuous wave of condensation technique / J Endod 31:37~39
Gulabivala K / 1998 / An in vitro comparison of thermoplasticised gutta-percha obturation techniques with cold lateral condensation / Endod Dent Traumatol 14:262~269
Whitworth J. / 2005 / Methods of filling root canals: principles and practices / Endod Topics 12:2~24
Collins J / 2006 / A comparison of three gutta-percha obturation techniques to replicate canal irregularities / J Endod 32:762~765
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