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3D Visual Glossary of Terminology in Root and Root Canal Anatomy

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The Root Canal Anatomy in Permanent Dentition

Abstract

The study of dental anatomy, physiology, and occlusion provides one of the basic components of the skills needed to practice all phases of dentistry. The first step in understanding dental anatomy is to learn the nomenclature and terminology used to describe or classify the material included in this subject. While terminology is an established basis for communication, anatomical terminology serves as a base for the description of the human body, not only for educational and forensic purposes but, above all, for diagnostic and therapeutic procedures. Therefore, definitions and explanations of terms used in descriptive root and root canal anatomy are the foundation for understanding the subject matter presented in the other chapters of this book. The purpose of this chapter is to use 3D high-resolution images to illustrate and define several terminologies associated with root canal anatomy.

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References

  1. Kachlik D, Baca V, Bozdechova I, Cech P, Musil V. Anatomical terminology and nomenclature: past, present and highlights. Surg Radiol Anat. 2008;30:459–66.

    Article  PubMed  Google Scholar 

  2. American Association of Endodontists, editor. Glossary of endodontic terms. 9th ed. Chicago, IL: American Association of Endodontists; 2016.

    Google Scholar 

  3. Chorzewska E, Chorzewski M, Szafranska B, Marczuk-Kolada G. Endodontic treatment of an invaginated tooth - case report. J Stoma. 2013;66:281–7.

    Article  Google Scholar 

  4. Hülsmann M. Dens invaginatus: aetiology, classification, prevalence, diagnosis, and treatment considerations. Int Endod J. 1997;30:79–90.

    Article  PubMed  Google Scholar 

  5. American Dental Association. Glossary of dental clinical and administrative terms. 2013. Available from http://www.ada.org/en/publications/cdt/glossary-of-dental-clinical-and-administrative-ter. Accessed 12 May 2018.

  6. Xu T, Tay FR, Gutmann JL, Fan B, Fan W, Huang Z, et al. Micro-computed tomography assessment of apical accessory canal morphologies. J Endod. 2016;42:798–802.

    Article  PubMed  Google Scholar 

  7. Cheung GS, Yang J, Fan B. Morphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars. Int Endod J. 2007;40:239–46.

    Article  PubMed  Google Scholar 

  8. Saffar JL, Lasfargues JJ, Cherruau M. Alveolar bone and the alveolar process: the socket that is never stable. Periodontol 2000. 1997;13:76–90.

    Article  PubMed  Google Scholar 

  9. Ricucci D, Langeland K. Apical limit of root canal instrumentation and obturation, part 2. A histological study. Int Endod J. 1998;31:394–409.

    Article  PubMed  Google Scholar 

  10. Dummer PM, McGinn JH, Rees DG. The position and topography of the apical canal constriction and apical foramen. Int Endod J. 1984;17:192–8.

    Article  PubMed  Google Scholar 

  11. Nanci A, Ten Cate AR. Ten Cate’s oral histology: development, structure, and function. 8th ed. St. Louis, MO: Elsevier; 2013.

    Google Scholar 

  12. Nekoofar MH, Ghandi MM, Hayes SJ, Dummer PMH. The fundamental operating principles of electronic root canal length measurement devices. Int Endod J. 2006;39:595–609.

    Article  PubMed  Google Scholar 

  13. Vertucci FJ. Root canal morphology and its relationship to endodontic procedures. Endod Top. 2005;10:3–29.

    Article  Google Scholar 

  14. Ding J, Gutmann JL, Fan B, Lu Y, Chen H. Investigation of apex locators and related morphological factors. J Endod. 2010;36:1399–403.

    Article  PubMed  Google Scholar 

  15. Arnold M, Ricucci D, Siqueira JF Jr. Infection in a complex network of apical ramifications as the cause of persistent apical periodontitis: a case report. J Endod. 2013;39:1179–84.

    Article  PubMed  Google Scholar 

  16. Riethmuller RH. The filling of root canals with Prinz’ paraffin compound. Dent Cosmos. 1914;56:490–3.

    Google Scholar 

  17. Sharma V, Sharma S, Dudeja P, Grover S. Endodontic management of nonvital permanent teeth having immature roots with one step apexification, using mineral trioxide aggregate apical plug and autogenous platelet-rich fibrin membrane as an internal matrix: case series. Contemp Clin Dent. 2016;7:67–70.

    Article  PubMed  PubMed Central  Google Scholar 

  18. Jou YT, Karabucak B, Levin J, Liu D. Endodontic working width: current concepts and techniques. Dent Clin N Am. 2004;48:323–35.

    Article  PubMed  Google Scholar 

  19. Versiani MA, Pécora JD, Sousa-Neto MD. Microcomputed tomography analysis of the root canal morphology of single-rooted mandibular canines. Int Endod J. 2013;46:800–7.

    Article  PubMed  Google Scholar 

  20. 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.

    Article  PubMed  Google Scholar 

  21. Melton DC, Krell KV, Fuller MW. Anatomical and histological features of C-shaped canals in mandibular second molars. J Endod. 1991;17:384–8.

    Article  PubMed  Google Scholar 

  22. Jafarzadeh H, Wu YN. The C-shaped root canal configuration: a review. J Endod. 2007;33:517–23.

    Article  PubMed  Google Scholar 

  23. von Zuben M, Martins JNR, Berti L, Cassim I, Flynn D, Gonzalez JA, et al. Worldwide prevalence of mandibular second molar C-shaped morphologies evaluated by cone-beam computed tomography. J Endod. 2017;43:1442–7.

    Article  Google Scholar 

  24. Wu MK, R’Oris A, Barkis D, Wesselink PR. Prevalence and extent of long oval canals in the apical third. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000;89:739–43.

    Article  PubMed  Google Scholar 

  25. Ajuz NC, Armada L, Gonçalves LS, Debelian G, Siqueira JF Jr. Glide path preparation in S-shaped canals with rotary pathfinding nickel-titanium instruments. J Endod. 2013;39:534–7.

    Article  PubMed  Google Scholar 

  26. Hiran-us S, Pimkhaokham S, Sawasdichai J, Ebihara A, Suda H. Shaping ability of ProTaper NEXT, ProTaper universal and iRace files in simulated S-shaped canals. Aust Endod J. 2016;42:32–6.

    Article  PubMed  Google Scholar 

  27. Hargreaves KM, Cohen S. Cohen’s pathways of the pulp. 10th ed. St. Louis: Mosby; 2011.

    Google Scholar 

  28. Malhotra N, Mala K. Calcific metamorphosis. Literature review and clinical strategies. Dent Update. 2013;40:48–50, 53–4, 57–8 passim.

    Article  PubMed  Google Scholar 

  29. Amir FA, Gutmann JL, Witherspoon DE. Calcific metamorphosis: a challenge in endodontic diagnosis and treatment. Quintessence Int. 2001;32:447–55.

    PubMed  Google Scholar 

  30. Stroner WF, Van Cura JE. Pulpal dystrophic calcification. J Endod. 1984;10:202–4.

    Article  PubMed  Google Scholar 

  31. Baghdady VS, Ghose LJ, Nahoom HY. Prevalence of pulp stones in a teenage Iraqi group. J Endod. 1988;14:309–11.

    Article  PubMed  Google Scholar 

  32. Gulsahi A, Cebeci AI, Ozden S. A radiographic assessment of the prevalence of pulp stones in a group of Turkish dental patients. Int Endod J. 2009;42:735–9.

    Article  PubMed  Google Scholar 

  33. Goga R, Chandler NP, Oginni AO. Pulp stones: a review. Int Endod J. 2008;41:457–68.

    Article  PubMed  Google Scholar 

  34. Saad AY, Al-Yahya AS. The location of the cementodentinal junction in single-rooted mandibular first premolars from Egyptian and Saudi patients: a histological study. Int Endod J. 2003;36:541–4.

    Article  PubMed  Google Scholar 

  35. Kuttler Y. Microscopic investigation of root apexes. J Am Dent Assoc. 1955;50:544–52.

    Article  PubMed  Google Scholar 

  36. Astekar M, Kaur P, Dhakar N, Singh J. Comparison of hard tissue interrelationships at the cervical region of teeth based on tooth type and gender difference. J Forensic Dent Sci. 2014;6:86–91.

    Article  PubMed  PubMed Central  Google Scholar 

  37. Kahler W. The cracked tooth conundrum: terminology, classification, diagnosis, and management. Am J Dent. 2008;21:275–82.

    PubMed  Google Scholar 

  38. Geurtsen W, Schwarze T, Gunay H. Diagnosis, therapy, and prevention of the cracked tooth syndrome. Quintessence Int. 2003;34:409–17.

    PubMed  Google Scholar 

  39. American Association of Endodontists, editor. Colleagues for excellence: cracking the cracked tooth code: detection and treatment of various longitudinal tooth fractures. Chicago, IL: American Association of Endodontists; 2008.

    Google Scholar 

  40. Oehlers FA, Lee KW, Lee EC. Dens evaginatus (evaginated odontome). Its structure and responses to external stimuli. Dent Pract Dent Rec. 1967;17:239–44.

    PubMed  Google Scholar 

  41. Priddy WL, Carter HG, Auzins J. Dens evaginatus – an anomaly of clinical significance. J Endod. 1976;2:51–2.

    Article  PubMed  Google Scholar 

  42. 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.

    Article  PubMed  Google Scholar 

  43. Schulze C. Developmental abnormalities of the teeth and the jaws. In: Gorlin O, Goldman H, editors. Thoma’s oral pathology. St. Louis: Mosby; 1970. p. 96–183.

    Google Scholar 

  44. Llamas Cadaval R, Vila VA. Biología de la pulpa y de los tejidos periapicales. In: Sahli C, editor. Endodoncia: Técnicas clínicas y bases científicas. Barcelona: Masson; 2001. p. 4–13.

    Google Scholar 

  45. Tronstad L. The endodontium. In: Tronstad L, editor. Clinical endodontics. Oslo: Thieme; 2008. p. 1–29.

    Google Scholar 

  46. Lustmann J. Dentinoenamel junction area in primary teeth affected by Morquio’s syndrome. J Dent Res. 1978;57:475–9.

    Article  PubMed  Google Scholar 

  47. Dong XD, Ruse ND. Fatigue crack propagation path across the dentinoenamel junction complex in human teeth. J Biomed Mater Res A. 2003;66:103–9.

    Article  PubMed  Google Scholar 

  48. Foreman PC, Soames JV. Analysis of the pulp chamber floor of human molar teeth. Int Endod J. 1988;21:257–63.

    Article  PubMed  Google Scholar 

  49. Krasner P, Rankow HJ. Anatomy of the pulp-chamber floor. J Endod. 2004;30:5–16.

    Article  PubMed  Google Scholar 

  50. Chaniotis A, Filippatos C. Root canal treatment of a dilacerated mandibular premolar using a novel instrumentation approach. A case report. Int Endod J. 2017;50:202–11.

    Article  PubMed  Google Scholar 

  51. Jafarzadeh H, Abbott PV. Dilaceration: review of an endodontic challenge. J Endod. 2007;33:1025–30.

    Article  PubMed  Google Scholar 

  52. Hamasha AA, Al-Khateeb T, Darwazeh A. Prevalence of dilaceration in Jordanian adults. Int Endod J. 2002;35:910–2.

    Article  PubMed  Google Scholar 

  53. Chohayeb AA. Dilaceration of permanent upper lateral incisors: frequency, direction, and endodontic treatment implications. Oral Surg Oral Med Oral Pathol. 1983;55:519–20.

    Article  PubMed  Google Scholar 

  54. Woelfel JB, Scheid RC. Dental anatomy: its relevance to dentistry. 6th ed. Philadelphia: Lippincott Williams & Wilkins; 2002.

    Google Scholar 

  55. Darwazeh A, Hamasha AA. Radiographic evidence of enamel pearls in Jordanian dental patients. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000;89:255–8.

    Article  PubMed  Google Scholar 

  56. Cavanha AO. Enamel pearls. Oral Surg Oral Med Oral Pathol. 1965;19:373–82.

    Article  PubMed  Google Scholar 

  57. Carlsen O, Alexandersen V. Radix mesiolingualis and radix distolingualis in a collection of permanent maxillary molars. Acta Odontol Scand. 2000;58:229–36.

    Article  PubMed  Google Scholar 

  58. Peiris R, Malwatte U, Abayakoon J, Wettasinghe A. Variations in the root form and root canal morphology of permanent mandibular first molars in a Sri Lankan population. Anat Res Int. 2015;2015:803671.

    PubMed  PubMed Central  Google Scholar 

  59. Camargo AJ, Arita ES, Watanabe PC. Fusion or gemination? An unusual mandibular second molar. Int J Surg Case Rep. 2016;21:73–7.

    Article  PubMed  Google Scholar 

  60. Stabholz A, Friedman S. Endodontic therapy of an unusual maxillary permanent first molar. J Endod. 1983;9:293–5.

    Article  PubMed  Google Scholar 

  61. Mohan RP, Verma S, Singh U, Agarwal N. Gemination. BMJ Case Rep. 2013; https://doi.org/10.1136/bcr-2013-010277.

  62. Pinheiro BC, Pinheiro TN, Capelozza AL, Consolaro A. A scanning electron microscopic study of hypercementosis. J Appl Oral Sci. 2008;16:380–4.

    Article  PubMed  PubMed Central  Google Scholar 

  63. Shoor H, Sujir N, Mutalik S, Pai KM. Hypercementosis: a rare finding in a patient with systemic lupus erythematosus. BMJ Case Rep. 2014;2014. https://doi.org/10.1136/bcr-2013-202370.

    Google Scholar 

  64. Teixeira FB, Sano CL, Gomes BP, Zaia AA, Ferraz CC, Souza-Filho FJ. A preliminary in vitro study of the incidence and position of the root canal isthmus in maxillary and mandibular first molars. Int Endod J. 2003;36:276–80.

    Article  PubMed  Google Scholar 

  65. Weller RN, Niemczyk SP, Kim S. Incidence and position of the canal isthmus. Part 1. Mesiobuccal root of the maxillary first molar. J Endod. 1995;21:380–3.

    Article  PubMed  Google Scholar 

  66. Adcock JM, Sidow SJ, Looney SW, Liu Y, McNally K, Lindsey K, et al. Histologic evaluation of canal and isthmus debridement efficacies of two different irrigant delivery techniques in a closed system. J Endod. 2011;37:544–8.

    Article  PubMed  Google Scholar 

  67. Endal U, Shen Y, Knut A, Gao Y, Haapasalo M. A high-resolution computed tomographic study of changes in root canal isthmus area by instrumentation and root filling. J Endod. 2011;37:223–7.

    Article  PubMed  Google Scholar 

  68. Hsu YY, Kim S. The resected root surface. The issue of canal isthmuses. Dent Clin N Am. 1997;41:529–40.

    PubMed  Google Scholar 

  69. Fan B, Pan Y, Gao Y, Fang F, Wu Q, Gutmann JL. Three-dimensional morphologic analysis of isthmuses in the mesial roots of mandibular molars. J Endod. 2010;36:1866–9.

    Article  PubMed  Google Scholar 

  70. Cleghorn BM, Christie WH, Dong CC. Root and root canal morphology of the human permanent maxillary first molar: a literature review. J Endod. 2006;32:813–21.

    Article  PubMed  Google Scholar 

  71. Versiani MA, Ordinola-Zapata R, Keles 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.

    Article  PubMed  Google Scholar 

  72. 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.

    Article  PubMed  Google Scholar 

  73. Garrido I, Abella F, Ordinola-Zapata R, Duran-Sindreu F, Roig M. Combined endodontic therapy and intentional replantation for the treatment of palatogingival groove. J Endod. 2016;42:324–8.

    Article  PubMed  Google Scholar 

  74. Gu YC. A micro-computed tomographic analysis of maxillary lateral incisors with radicular grooves. J Endod. 2011;37:789–92.

    Article  PubMed  Google Scholar 

  75. Arora V, Yadav M, Singh S. Peri-cervical dentin (PCD): a new paradigm for endodontic success. Glob J Res Anal. 2015;4:490–3.

    Google Scholar 

  76. Tronstad L. The apical periodontium. In: Tronstad L, editor. Clinical endodontics. Oslo: Thieme; 2008. p. 31–62.

    Google Scholar 

  77. Brau AE. Anatomia dental interna. In: Sahli C, editor. Endodoncia: Técnicas clínicas y bases científicas. Barcelona: Masson; 2001. p. 14–27.

    Google Scholar 

  78. Tomes CS. A manual of dental anatomy, human and comparative. 8th ed. New York: MacMillan Co.; 1923.

    Google Scholar 

  79. Lu TY, Yang SF, Pai SF. Complicated root canal morphology of mandibular first premolar in a Chinese population using the cross section method. J Endod. 2006;32:932–6.

    Article  PubMed  Google Scholar 

  80. Cleghorn B, Christie W, Dong C. The root and root canal morphology of the human mandibular first premolar: a literature review. J Endod. 2007;33:509–16.

    Article  PubMed  Google Scholar 

  81. Scott GR, Turner CG II. The anthropology of modern human teeth: dental morphology and its variation in recent human populations. 1st ed. Cambridge: Cambridge University press; 2000.

    Google Scholar 

  82. Fan B, Yang J, Gutmann JL, Fan M. Root canal systems in mandibular first premolars with C-shaped root configurations. Part I: microcomputed tomography mapping of the radicular groove and associated root canal cross-sections. J Endod. 2008;34:1337–41.

    Article  PubMed  Google Scholar 

  83. Gu YC, Zhang YP, Liao ZG, Fei XD. A micro-computed tomographic analysis of wall thickness of C-shaped canals in mandibular first premolars. J Endod. 2013;39:973–6.

    Article  PubMed  Google Scholar 

  84. Gu Y, Zhang Y, Liao Z. Root and canal morphology of mandibular first premolars with radicular grooves. Arch Oral Biol. 2013;58:1609–17.

    Article  PubMed  Google Scholar 

  85. Awawdeh LA, Al-Qudah AA. Root form and canal morphology of mandibular premolars in a Jordanian population. Int Endod J. 2008;41:240–8.

    Article  PubMed  Google Scholar 

  86. Cleghorn BM, Christie WH, Dong CC. Anomalous mandibular premolars: a mandibular first premolar with three roots and a mandibular second premolar with a C-shaped canal system. Int Endod J. 2008;41:1005–14.

    Article  PubMed  Google Scholar 

  87. Liu N, Li X, Liu N, Ye L, An J, Nie X, et al. A micro-computed tomography study of the root canal morphology of the mandibular first premolar in a population from Southwest China. Clin Oral Investig. 2013;19:999–1007.

    Article  Google Scholar 

  88. Calberson FL, De Moor RJ, Deroose CA. The radix entomolaris and paramolaris: clinical approach in endodontics. J Endod. 2007;33:58–63.

    Article  PubMed  Google Scholar 

  89. Carlsen O, Alexandersen V. Radix paramolaris in permanent mandibular molars: identification and morphology. Scand J Dent Res. 1991;99:189–95.

    PubMed  Google Scholar 

  90. Fischer G. Über die feinere Anatomie der Wurzelkanäle Menschlicher Zähne. Sept: Dtsch Monatsschr Zahnheilkd; 1907.

    Google Scholar 

  91. Martins JN, Mata A, Marques D, Carames J. Prevalence of root fusions and main root canal merging in human upper and lower molars: a cone-beam computed tomography in vivo study. J Endod. 2016;42:900–8.

    Article  PubMed  Google Scholar 

  92. Zhang Q, Chen H, Fan B, Fan W, Gutmann JL. Root and root canal morphology in maxillary second molar with fused root from a native Chinese population. J Endod. 2014;40:871–5.

    Article  PubMed  Google Scholar 

  93. Carlsen O, Alexandersen V, Heitmann T, Jakobsen P. Root canals in one-rooted maxillary second molars. Scand J Dent Res. 1992;100:249–56.

    PubMed  Google Scholar 

  94. Ordinola-Zapata R, Martins JN, Bramante CM, Villas-Boas MH, Duarte MH, Versiani MA. Morphological evaluation of maxillary second molars with fused roots: a micro-CT study. Int Endod J. 2017;50:1192–200.

    Article  PubMed  Google Scholar 

  95. Jafarzadeh H, Azarpazhooh A, Mayhall JT. Taurodontism: a review of the condition and endodontic treatment challenges. Int Endod J. 2008;41:375–88.

    Article  PubMed  Google Scholar 

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Versiani, M.A., Martins, J.N.R., Basrani, B. (2019). 3D Visual Glossary of Terminology in Root and Root Canal Anatomy. 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_15

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