International Journal of Clinical Pediatric Dentistry

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VOLUME 8 , ISSUE 3 ( September-December, 2015 ) > List of Articles


Computed Tomographic Morphometry of the Internal Anatomy of Mandibular Second Primary Molars

Ameet J Kurthukoti, Pranjal Sharma, Dinesh Francis Swamy, R Shashidara, Elaine Barretto Swamy

Keywords : Area, Cross-sectional shape, Deciduous/anatomy and histology, Dental pulp cavity/anatomy and histology, Number of canals, Root canal therapy/instrumentation, Root dentin thickness, Spiral computed/methods, Tomography, Tooth

Citation Information : Kurthukoti AJ, Sharma P, Swamy DF, Shashidara R, Swamy EB. Computed Tomographic Morphometry of the Internal Anatomy of Mandibular Second Primary Molars. Int J Clin Pediatr Dent 2015; 8 (3):202-207.

DOI: 10.5005/jp-journals-10005-1313

License: CC BY-NC 4.0

Published Online: 01-12-2015

Copyright Statement:  Copyright © 2015; The Author(s).


Need for the study: The most important procedure for a successful endodontic treatment is the cleaning and shaping of the canal system. Understanding the internal anatomy of teeth provides valuable information to the clinician that would help him achieve higher clinical success during endodontic therapy. Aims: To evaluate by computed tomography—the internal anatomy of mandibular second primary molars with respect to the number of canals, cross-sectional shape of canals, cross-sectional area of canals and the root dentin thickness. Materials and methods: A total of 31 mandibular second primary molars were subjected to computed-tomographic evaluation in the transverse plane, after mounting them in a prefabricated template. The images, thus, obtained were analyzed using De-winter Bio-wizard® software. Results: All the samples demonstrated two canals in the mesial root, while majority of the samples (65.48%) demonstrated two canals in the distal root. The cross-sectional images of the mesial canals demonstrated a round shape, while the distal canals demonstrated an irregular shape. The root dentin thickness was highly reduced on the distal aspect of mesial and mesial aspect of distal canals. Conclusion: The mandibular second primary molars demonstrated wide variation and complexities in their internal anatomy. A thorough understanding of the complexity of the root canal system is essential for understanding the principles and problems of shaping and cleaning, determining the apical limits and dimensions of canal preparations, and for performing successful endodontic procedures. How to cite this article: Kurthukoti AJ, Sharma P, Swamy DF, Shashidara R, Swamy EB. Computed Tomographic Morphometry of the Internal Anatomy of Mandibular Second Primary Molars. Int J Clin Pediatr Dent 2015;8(3):202-207.

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  1. Aminabadi NA, Farahani RM, Gajan EB. Study of root canal accessibility in human primary molars. J Oral Sci 2008 Mar; 50(1):69-74.
  2. Vertucci FJ. Root canal morphology and its relationship to endodontic procedures. Endod Topics 2005;10(1):3-29.
  3. 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 Sep;36(9): 1547-1551.
  4. Prabhakar AR, Mahantesh T, Ahuja V. Comparison of retention and demineralization inhibition potential of adhesive banding cements in primary teeth. J Dent Child (Chic) 2010 May-Aug;77(2):66-71.
  5. Grossman Louis LI, Oliet S, Del R, Carlos E. Endodontic Practice. 11th ed. Philadelphia, PA: Lea and Febiger; 1988. p. 371.
  6. Tobias, Phillip V, Sperber, Geoffrey H. From Apes to Angels. New York, NY: Wiley-Liss; 1990. The phylogeny and odontogeny of dental morphology; p. 215-219.
  7. Tachibana H, Matsumoto K. Applicability of X-ray computerized tomography in Endodontics. Endod Dent Traumatol 1990;6(1):16-20.
  8. Patel S, Horner K. The use of cone beam computed tomography in endodontic. Int Endod J 2009;42(9):755-756.
  9. Dessai SSR, Barretto ES, Swamy DF. Cone beam computed tomography: a comprehensive review. Res Rev J Med Health Sci 2014;3(suppl 2):S1-10.
  10. Sarkar S, Rao AP. Number of root-canals, their shape, configuration, accessory root-canals in radicular pulp morphology: a preliminary study. J Ind Soc Pedod Prev Dent 2002 Sep;20(3):93-97.
  11. Zoremchhingi, Joseph T, Varma B, Mungara J. A study of root canal morphology of human primary molars using computerized tomography: an in vitro study. J Ind Soc Pedod Prev Dent 2005 Mar; 23(1):7-12.
  12. Peters OA, Schonenberger K, Laib A. Effects of four NiTi preparation techniques on root-canal geometry assessed by micro computed tomography. Int Endod J 2001;34(3):221-230.
  13. Azar MR, Safi L, Nikaein A. Comparison of the cleaning capacity of M two and pro taper rotary systems and manual instruments in primary teeth. Dent Res J (Isfahan) 2012 Mar; 9(2):146-151.
  14. Rao MS, Shameem A, Nair R, Ghanta S, Thankachan RP, Issac JK. Comparison of the remaining dentin thickness in the root after hand and four rotary instrumentation techniques: An in vitro study. J Contemp Dent Pract 2013;14(4):712-717.
  15. Berutti E, Fedon G. Thickness of cementum/dentin in mesial roots of mandibular first molars. J Endod 1992;18:545-548.
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