Abstract
Understanding the anatomy of roots and root canals is fundamental for successful root canal treatment and endodontic surgery. There are numerous reports on anatomical variations of teeth, and several classifications of canal configurations have been proposed. Recently, improved nondestructive digital imaging systems and the use of magnification in clinical practice have further highlighted the complexities of root canal anatomy. This chapter reviews the existing classifications of root and root canal morphology and introduces a new, accurate, simple, and reliable system for research, clinical, and training purposes.
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References
Cleghorn BM, Goodacre CJ, Christie WH. Morphology of teeth and their root canal systems. In: Ingle JI, Bakland LK, Baumgartner JC, editors. Ingle’s endodontics. 6th ed. Hamilton, ON: BC Decker Inc.; 2008. p. 151–220.
Vertucci FJ. Root canal morphology and its relationship to endodontic procedures. Endod Topics. 2005;10:3–29.
Ahmed HMA, Abbott PV. Accessory roots in maxillary molar teeth: a review and endodontic considerations. Aust Dent J. 2012;57:123–31. quiz 248
Ahmed HMA. Anatomical challenges, electronic working length determination and current developments in root canal preparation of primary molar teeth. Int Endod J. 2013;46:1011–22.
Versiani MA, Pécora JD, de Sousa-Neto MD. Root and root canal morphology of four-rooted maxillary second molars: a micro-computed tomography study. J Endod. 2012;38:977–82.
Versiani MA, Ordinola-Zapata R, Keleş A, Alcin H, Bramante CM, Pécora JD, et al. Middle mesial canals in mandibular first molars: a micro-CT study in different populations. Arch Oral Biol. 2016;61:130–7.
Ahmed HMA, Hashem AA. Accessory roots and root canals in human anterior teeth: a review and clinical considerations. Int Endod J. 2016;49:724–36.
Ahmed HMA, Cheung GSP. Accessory roots and root canals in maxillary premolar teeth: a review of a critical endodontic challenge. ENDO – Endod Pract Today. 2012;6:7–18.
Ahmed HMA. A paradigm evolution shift in the endodontic map. Eur J Gen Dent. 2015;4:98.
Hess W, Zürcher E. The anatomy of root canals of the teeth of the permanent and deciduous dentition. New York: William Wood; 1925.
Weine FS, Healey HJ, Gerstein H, Evanson L. Canal configuration in the mesiobuccal root of the maxillary first molar and its endodontic significance. Oral Surg Oral Med Oral Pathol. 1969;28:419–25.
Vertucci F, Seelig A, Gillis R. Root canal morphology of the human maxillary second premolar. Oral Surg Oral Med Oral Pathol. 1974;38:456–64.
Weine FS. Endodontic therapy. 3rd ed. St. Louis: Mosby; 1982.
Ahmed HMA, Versiani MA, De-Deus G, Dummer PMH. A new system for classifying root and root canal morphology. Int Endod J. 2017;50:761–70.
Christie WH, Peikoff MD, Fogel HM. Maxillary molars with two palatal roots: a retrospective clinical study. J Endod. 1991;17:80–4.
Carlsen O, Alexandersen V. Radix mesiolingualis and radix distolingualis in a collection of permanent maxillary molars. Acta Odontol Scand. 2000;58:229–36.
Baratto-Filho F, Fariniuk LF, Ferreira EL, Pécora JD, Cruz-Filho AM, Sousa-Neto MD. Clinical and macroscopic study of maxillary molars with two palatal roots. Int Endod J. 2002;35:796–801.
Belizzi R, Hartwell G. Evaluating the maxillary premolar with three canals for endodontic therapy. J Endod. 1981;7:521–7.
Pomeranz HH, Eidelman DL, Goldberg MG. Treatment considerations of the middle mesial canal of mandibular first and second molars. J Endod. 1981;7:565–8.
Song JS, Choi HJ, Jung IY, Jung HS, Kim SO. The prevalence and morphologic classification of distolingual roots in the mandibular molars in a Korean population. J Endod. 2010;36:653–7.
Kottoor J, Albuquerque DV, Velmurugan N. A new anatomically based nomenclature for the roots and root canals—Part 1: Maxillary molars. Int J Dent. 2012;2012:120565.
Valerian Albuquerque D, Kottoor J, Velmurugan N. A new anatomically based nomenclature for the roots and root canals—Part 2: Mandibular molars. Int J Dent. 2012;2012:814789.
Gulabivala K, Aung TH, Alavi A, Ng YL. Root and canal morphology of Burmese mandibular molars. Int Endod J. 2001;34:359–70.
Gulabivala K, Opasanon A, Ng YL, Alavi A. Root and canal morphology of Thai mandibular molars. Int Endod J. 2002;35:56–62.
Ng YL, Aung TH, Alavi A, Gulabivala K. Root and canal morphology of Burmese maxillary molars. Int Endod J. 2001;34:620–30.
Sert S, Bayirli GS. Evaluation of the root canal configurations of the mandibular and maxillary permanent teeth by gender in the Turkish population. J Endod. 2004;30:391–8.
Versiani M, Ordinola-Zapata R. Root canal anatomy: implications in biofilm disinfection. In: Chavez de Paz L, Sedgley C, Kishen A, editors. Root canal biofilms. Toronto: Springer; 2015. p. 23–52.
Verma P, Love RM. A micro CT study of the mesiobuccal root canal morphology of the maxillary first molar tooth. Int Endod J. 2011;44:210–7.
Kim Y, Chang SW, Lee JK, Chen IP, Kaufman B, Jiang J, et al. A micro-computed tomography study of canal configuration of multiple-canalled mesiobuccal root of maxillary first molar. Clin Oral Investig. 2013;17:1541–6.
Lee KW, Kim Y, Perinpanayagam H, Lee JK, Yoo YJ, Lim SM, et al. Comparison of alternative image reformatting techniques in micro-computed tomography and tooth clearing for detailed canal morphology. J Endod. 2014;40:417–22.
Leoni GB, Versiani MA, Pécora JD, Sousa-Neto MD. Micro-computed tomographic analysis of the root canal morphology of mandibular incisors. J Endod. 2014;40:710–6.
Filpo-Perez C, Bramante CM, Villas-Boas MH, Hungaro Duarte MA, Versiani MA, Ordinola-Zapata R. Micro-computed tomographic analysis of the root canal morphology of the distal root of mandibular first molar. J Endod. 2015;41:231–6.
Vertucci FJ. Root canal anatomy of the human permanent teeth. Oral Surg Oral Med Oral Pathol. 1984;58:589–99.
Velmurugan N, Parameswaran A, Kandaswamy D, Smitha A, Vijayalakshmi D, Sowmya N. Maxillary second premolar with three roots and three separate root canals—case reports. Aust Endod J. 2005;31:73–5.
Peiris R. Root and canal morphology of human permanent teeth in a Sri Lankan and Japanese population. Anthropol Sci. 2008;116:123–33.
Briseño-Marroquin B, Paqué F, Maier K, Willershausen B, Wolf TG. Root canal morphology and configuration of 179 maxillary first molars by means of micro-computed tomography: an ex vivo study. J Endod. 2015;41:2008–13.
Gupta SK, Saxena P. Proposal for a simple and effective diagrammatic representation of root canal configuration for better communication amongst oral radiologists and clinicians. J Oral Biol Craniofac Res. 2016;6:59–65.
Oehlers FA. Dens invaginatus (dilated composite odontome). I. Variations of the invagination process and associated anterior crown forms. Oral Surg Oral Med Oral Pathol. 1957;10:1204–18.
Melton DC, Krell KV, Fuller MW. Anatomical and histological features of C-shaped canals in mandibular second molars. J Endod. 1991;17:384–8.
Fan B, Cheung GS, Fan M, Gutmann JL, Bian Z. C-shaped canal system in mandibular second molars: Part I—Anatomical features. J Endod. 2004;30:899–903.
Kato A, Ziegler A, Higuchi N, Nakata K, Nakamura H, Ohno N. Aetiology, incidence and morphology of the C-shaped root canal system and its impact on clinical endodontics. Int Endod J. 2014;47:1012–33.
Shaw JC. Taurodont teeth in South African races. J Anat. 1928;62:476–98.
Jafarzadeh H, Azarpazhooh A, Mayhall JT. Taurodontism: a review of the condition and endodontic treatment challenges. Int Endod J. 2008;41:375–88.
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Ahmed, H.M.A., Versiani, M.A., De-Deus, G., Dummer, P.M.H. (2019). New Proposal for Classifying Root and Root Canal Morphology. In: Versiani, M., Basrani, B., Sousa-Neto, M. (eds) The Root Canal Anatomy in Permanent Dentition. Springer, Cham. https://doi.org/10.1007/978-3-319-73444-6_4
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