Download PDF
CC BY-NC-ND 4.0 · Eur J Dent 2015; 09(04): 476-482
DOI: 10.4103/1305-7456.172618
Original Article
Dental Investigation Society

Root canal anatomy of mandibular first premolars in an Emirati subpopulation: A laboratory study

Sheela Balu Abraham
1   Department of General and Specialist Dental Practice, College of Dental Medicine, Sharjah, UAE
,
Vellore Kannan Gopinath
1   Department of General and Specialist Dental Practice, College of Dental Medicine, Sharjah, UAE
› Author Affiliations
Further Information

Publication History

Publication Date:
23 September 2019 (online)

Also available at
 PDF Download Permissions and Reprints

ABSTRACT

Objective: The purpose of this study was to determine the root canal anatomy of mandibular first premolar teeth in an Emirati subpopulation using a decalcification and clearing method. Materials and Methods: One hundred permanent mandibular first premolar teeth extracted for orthodontic purposes from an Emirati subpopulation from the United Arab Emirates were used for this study. They were subjected to decalcification and clearing. The tooth length, the canal orifice shape, mesial invagination, canal pattern, the location of apex, presence of lateral canals, and intercanal communications were determined. Results: The most common canal pattern was the Vertucci Type I (65%) followed by Type V (14%) and Type IV (13%). The most common type of canal orifice seen was the oval shape (36%) followed by the round shape (25%). Mesial invaginations were seen in 44% of the teeth. The mean tooth length was 19.9 mm, and apical deltas were seen in 24% of teeth. Conclusion: The Vertucci Type I canal pattern was the most prevalent in the mandibular first premolars while the occurrence of multiple canals was noted in 35% of this population.

Key words:

Canal morphology - Emirati population - premolar
 

  • REFERENCES

  • 1 Hess W, Zurcher E. The Anatomy of Root Canals of Teeth of Permanent and Deciduous Dentitions. New York: William Wood and Co.; 1925
    Search in Google Scholar
  • 2 Cohen S, Hargreaves KM. Pathways of the Pulp. 9th ed.. St. Louis: Mosby-Elsevier; 2006: p. 216-7
    Search in Google Scholar
  • 3 Brescia NJ. Applied Dental Anatomy. St. Louis: CV Mosby Co.; 1961: p. 46-8
    Search in Google Scholar
  • 4 Ingle JI, Taintor JF. Endodontics. 3rd ed.. Philadelphia: Lea and Febinger; 1985: p. 27-52
    Search in Google Scholar
  • 5 Mueller AH. Anatomy of root canals of the incisors, cuspids and bicuspids of the permanent teeth. J Am Dent Assoc 1933; 20: 1361-86
    Search in Google Scholar
  • 6 Amos ER. Incidence of bifurcated root canals in mandibular bicuspids. J Am Dent Assoc 1955; 50: 70-1
    PubMedSearch in Google Scholar
  • 7 Pineda F, Kuttler Y. Mesiodistal and buccolingual roentgenographic investigation of 7,275 root canals. Oral Surg Oral Med Oral Pathol 1972; 33: 101-10
    CrossrefPubMedSearch in Google Scholar
  • 8 Green D. Double canals in single roots. Oral Surg Oral Med Oral Pathol 1973; 35: 689-96
    CrossrefPubMedSearch in Google Scholar
  • 9 Baisden MK, Kulild JC, Weller RN. Root canal configuration of the mandibular first premolar. J Endod 1992; 18: 505-8
    CrossrefPubMedSearch in Google Scholar
  • 10 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
    CrossrefPubMedSearch in Google Scholar
  • 11 Trope M, Elfenbein L, Tronstad L. Mandibular premolars with more than one root canal in different race groups. J Endod 1986; 12: 343-5
    CrossrefPubMedSearch in Google Scholar
  • 12 Ahmed HA, Abu-bakr NH, Yahia NA, Ibrahim YE. Root and canal morphology of permanent mandibular molars in a Sudanese population. Int Endod J 2007; 40: 766-71
    CrossrefPubMedSearch in Google Scholar
  • 13 Vertucci FJ. Root canal anatomy of the human permanent teeth. Oral Surg Oral Med Oral Pathol 1984; 58: 589-99
    CrossrefPubMedSearch in Google Scholar
  • 14 Walker RT. Root canal anatomy of mandibular first premolars in a southern Chinese population. Endod Dent Traumatol 1988; 4: 226-8
    CrossrefPubMedSearch in Google Scholar
  • 15 Rahimi S, Shahi S, Yavari HR, Manafi H, Eskandarzadeh N. Root canal configuration of mandibular first and second premolars in an Iranian population. J Dent Res Dent Clin Dent Prospects 2007; 1: 59-64
    PubMedSearch in Google Scholar
  • 16 Velmurugan N, Sandhya R. Root canal morphology of mandibular first premolars in an Indian population: A laboratory study. Int Endod J 2009; 42: 54-8
    CrossrefPubMedSearch in Google Scholar
  • 17 Caliskan MK, Pehlivan Y, Sepetçioglu F, Türkün M, Tuncer SS. Root canal morphology of human permanent teeth in a Turkish population. J Endod 1995; 21: 200-4
    CrossrefPubMedSearch in Google Scholar
  • 18 Awawdeh LA, Al-Qudah AA. Root form and canal morphology of mandibular premolars in a Jordanian population. Int Endod J 2008; 41: 240-8
    CrossrefPubMedSearch in Google Scholar
  • 19 Cleghorn BM, Christie WH, Dong CC. The root and root canal morphology of the human mandibular first premolar: A literature review. J Endod 2007; 33: 509-16
    CrossrefPubMedSearch in Google Scholar
  • 20 Omer OE, Al Shalabi RM, Jennings M, Glennon J, Claffey NM. A comparison between clearing and radiographic techniques in the study of the root-canal anatomy of maxillary first and second molars. Int Endod J 2004; 37: 291-6
    CrossrefPubMedSearch in Google Scholar
  • 21 Wu DM, Wu YN, Guo W, Sameer S. Accuracy of direct digital radiography in the study of the root canal type. Dentomaxillofac Radiol 2006; 35: 263-5
    CrossrefPubMedSearch in Google Scholar
  • 22 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
    CrossrefPubMedSearch in Google Scholar
  • 23 Nur BG, Ok E, Altunsoy M, Aglarci OS, Colak M, Gungor E. Evaluation of the root and canal morphology of mandibular permanent molars in a south-eastern Turkish population using cone-beam computed tomography. Eur J Dent 2014; 8: 154-9
    Thieme ConnectPubMedSearch in Google Scholar
  • 24 Neelakantan P, Subbarao C, Subbarao CV. 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: 1547-51
    CrossrefPubMedSearch in Google Scholar
  • 25 Singh S, Pawar M. Root canal morphology of South Asian Indian maxillary molar teeth. Eur J Dent 2015; 9: 133-44
    Thieme ConnectPubMedSearch in Google Scholar
  • 26 Rwenyonyi CM, Kutesa AM, Muwazi LM, Buwembo W. Root and canal morphology of maxillary first and second permanent molar teeth in a Ugandan population. Int Endod J 2007; 40: 679-83
    CrossrefPubMedSearch in Google Scholar
  • 27 Robertson D, Leeb IJ, McKee M, Brewer E. A clearing technique for the study of root canal systems. J Endod 1980; 6: 421-4
    CrossrefPubMedSearch in Google Scholar
  • 28 Kim E, Fallahrastegar A, Hur YY, Jung IY, Kim S, Lee SJ. Difference in root canal length between Asians and Caucasians. Int Endod J 2005; 38: 149-51
    CrossrefPubMedSearch in Google Scholar
  • 29 Vertucci FJ, Haddix JE, Britto LR. Tooth morphology and access cavity preparation. In: Cohen S, Hargreaves KM. editors. Pathways of the Pulp. 9th ed.. St. Louis, MO, USA: Mosby Elsevier; 2006: p. 148-23
    Search in Google Scholar
  • 30 Love RM, Jenkinson HF. Invasion of dentinal tubules by oral bacteria. Crit Rev Oral Biol Med 2002; 13: 171-83
    CrossrefPubMedSearch in Google Scholar
  • 31 Singh S, Pawar M. Root canal morphology of South Asian Indian mandibular premolar teeth. J Endod 2014; 40: 1338-41
    CrossrefPubMedSearch in Google Scholar
  • 32 Yoshioka T, Villegas JC, Kobayashi C, Suda H. Radiographic evaluation of root canal multiplicity in mandibular first premolars. J Endod 2004; 30: 73-4
    CrossrefPubMedSearch in Google Scholar
  • 33 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
    CrossrefPubMedSearch in Google Scholar
  • 34 England Jr MC, Hartwell GR, Lance JR. Detection and treatment of multiple canals in mandibular premolars. J Endod 1991; 17: 174-8
    CrossrefPubMedSearch in Google Scholar