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A Study of the Root Canal Morphology of Mandibular Anterior Teeth Using Cone-beam Computed Tomography in a Chinese Subpopulation

      Abstract

      Introduction

      The purpose of this study was to investigate the root canal configuration of the mandibular anterior teeth using cone-beam computed tomographic (CBCT) imaging in a Chinese subpopulation.

      Methods

      A total of 3,871 CBCT images of mandibular anterior teeth were collected from 648 patients who accepted CBCT projection as a preoperative assessment for implants or orthodontic treatment. The following items were recorded and evaluated: tooth position, root number, canal number, root canal type, the distance between the anatomic apex and the point at which the canal divided into 2 for mandibular anterior teeth with 2 root canals (excluding canines with 2 roots), and the distance between the 2 root canal orifices. The Fisher exact test was used to analyze the correlation between the number of root canals and tooth position.

      Results

      All of the incisors in this study had 1 root, and 1.32% of the canines had 2 roots. The prevalence of 2 root canals in the lateral incisors (354, 27.36%) was higher than that in the central incisors (202, 15.71%) (P < .05) and the canines (81, 6.27%) (P < .05).

      Conclusions

      There is a high prevalence of 2 root canals in the mandibular anterior teeth of the studied Chinese subpopulation. This study provides detailed information about the root canal morphology of mandibular anterior teeth in a Chinese subpopulation.

      Key Words

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      References

        • Sommer R.F.
        • Ostrander F.D.
        • Crowley M.
        Clinical Endodontics.
        2nd ed. WB Saunders, Philadelphia, PA1965: 269-271
        • Rankine Wilson R.W.
        • Henry P.
        The bifurcated root canal in lower anterior teeth.
        J Am Dent Assoc. 1965; 70: 1162-1165
        • Madeira M.C.
        • Hetem S.
        Incidence of bifurcations in mandibular incisors.
        Oral Surg Oral Med Oral Pathol. 1973; 36: 589-591
        • Vertucci F.J.
        Root canal anatomy of the mandibular anterior teeth.
        J Am Dent Assoc. 1974; 89: 369-371
        • Benjamin K.A.
        • Dowson J.
        Incidence of two root canals in human mandibular incisor teeth.
        Oral Surg Oral Med Oral Pathol. 1974; 38: 122-126
        • Liu J.
        • Luo J.
        • Dou L.
        • et al.
        CBCT study of root and canal morphology of permanent mandibular incisors in a Chinese population.
        Acta Odontol Scand. 2014; 72: 26-30
        • Kartal N.
        • Yanikoglu F.C.
        Root canal morphology of mandibular incisors.
        J Endod. 1992; 18: 562-564
        • Miyashita M.
        • Kasahara E.
        • Yasuda E.
        • et al.
        Root canal system of the mandibular incisor.
        J Endod. 1997; 23: 479-484
        • Sert S.
        • Aslanalp V.
        • Tanalp J.
        Investigation of the root canal configurations of mandibular permanent teeth in the Turkish population.
        Int Endod J. 2004; 37: 494-499
        • Rahimi S.
        • Milani A.S.
        • Shahi S.
        • et al.
        Prevalence of two root canals in human mandibular anterior teeth in an Iranian population.
        Indian J Dent Res. 2013; 24: 234-236
        • Caliskan M.K.
        • Pehlivan Y.
        • Sepetcioglu F.
        • et al.
        Root canal morphology of human permanent teeth in a Turkish population.
        J Endod. 1995; 21: 200-204
        • Al-Qudah A.A.
        • Awawdeh L.A.
        Root canal morphology of mandibular incisors in a Jordanian population.
        Int Endod J. 2006; 39: 873-877
        • Vertucci F.J.
        Root canal anatomy of the human permanent teeth.
        Oral Surg Oral Med Oral Pathol. 1984; 58: 589-599
        • Kulid J.C.
        • Peters D.D.
        Incidence and configuration of canal systems in the mesiobuccal root of maxillary first and second molars.
        J Endod. 1990; 16: 311-317
        • Plotino G.
        • Grande N.M.
        • Pecci R.
        • et al.
        Three-dimensional imaging using microcomputed tomography for studying tooth macromorphology.
        J Am Dent Assoc. 2006; 137: 1555-1561
        • Zhang R.
        • Yang H.
        • Yu X.
        • et al.
        Use of CBCT to identify the morphology of maxillary permanent molar teeth in a Chinese subpopulation.
        Int Endod J. 2011; 44: 162-169
        • Zhang R.
        • Wang H.
        • Tian Y.Y.
        • et al.
        Use of cone-beam computed tomography to evaluate root and canal morphology of mandibular molars in Chinese individuals.
        Int Endod J. 2011; 44: 990-999
        • Kim S.
        Endodontic application of cone-beam computed tomography in South Korea.
        J Endod. 2012; 38: 153-157
        • Neelakantan P.
        • Subbarao C.
        • Subbarao C.V.
        Comparative evaluation of modified canal staining and clearing technique, cone-beam computed tomography, peripheral quantitative computed tomography, spiral computed tomography, and plain and contrast medium-enhanced digital radiography in studying root canal morphology.
        J Endod. 2010; 36: 1547-1551
        • Paes da Silva Ramos Fernandes L.M.
        • Rice D.
        • Ordinola-Zapata R.
        • et al.
        Detection of various anatomic patterns of root canals in mandibular incisors using digital periapical radiography, 3 cone-beam computed tomographic scanners, and micro-computed tomographic imaging.
        J Endod. 2014; 40: 42-45