中國人下顎恒門齒根管形態之研究

A Study of the Root Canal Morphology of the Mandibular Permanent Incisors in Chinese

刁名豪(Mirng-Haur Diau) ； 張育靖(Yu-Ging Chang) ； 羅文智(Wen-Jau Rou) ； 陳正慧(Jeng-Huey Chen) ； 黃自釗(Tzth-Jau Huang) ； 阮榮泰(Rong-Tai Roan)

《The Kaohsiung Journal of Medical Sciences》 2卷9期 (1986/09) Pp. 546-551

https://doi.org/10.6452/KJMS.198609.0546

摘要

Three types of root canal were categorized. Type I is the single canal with one foramen. Type II is the incomplete divided canal. 227 permanent mandibular incisors were studied by using transparent dyeing method and reviewed the distributions among the above three types. The results were as follows:
1.For central incisors
Type I 62.7%
Type II 30.0%
Type III 7.3%
2.For lateral incisors
Type I 45.3%
Type II 43.6%
Type III 11.1%
3.There is a statistical difference in the incidence of root canal between the central incisors and lateral incisors (x2=6.93, p＜0.05).
4.The incidence of the lateral canal, apical ramification and transverse anastomosis in lateral incisors was higher than that in central incisors.

並列摘要

Three types of root canal were categorized. Type I is the single canal with one foramen. Type II is the incomplete divided canal. 227 permanent mandibular incisors were studied by using transparent dyeing method and reviewed the distributions among the above three types. The results were as follows:
1.For central incisors
Type I 62.7%
Type II 30.0%
Type III 7.3%
2.For lateral incisors
Type I 45.3%
Type II 43.6%
Type III 11.1%
3.There is a statistical difference in the incidence of root canal between the central incisors and lateral incisors (x2=6.93, p＜0.05).
4.The incidence of the lateral canal, apical ramification and transverse anastomosis in lateral incisors was higher than that in central incisors.

並列關鍵字

root canal morphology ； mandibular incisors