IN-VITRO ANALYSIS OF MAXILLARY FIRST MOLARS MORPHOLOGY USING THREE DIMENSIONAL MICRO-CT IMAGING: CONSIDERATIONS FOR RESTORATIVE DENTISTRY

İsmail Hakkı Baltacıoğlu, Gülbike Demirel, Mehmet Eray Kolsuz, Kaan Orhan
157

Abstract


Purpose: The aim of this study was to determine the differences between the positional relationship of the crown contour and the pulp chamber of left and right maxillary first molars, as well as their morphological characteristics by using micro-CT system with reconstruction from a volumetric rendering software.

Materials and Methods: In total, 21 extracted maxillary first molars, including 11 left and 10 right teeth, were used. The positional relationship between the crown contour, pulp chamber and morphology of the teeth were investigated three-dimensionally by means of micro-CT imaging.

Results: Closest distance of mesio-buccal pulp horn to enamel surface in mm was calculated as 2.5±0.20 mm for right and 2.29±0.17 mm for left teeth. This difference was statistically significant (p=0.017). The means of closest distance of disto-buccal pulp horn to enamel surface were also significantly different between left and right teeth (p=0.001). The mean pulp volumes of right side and left side teeth were, respectively, 32.94±3.19 mm3 and33.71±2.82 mm3 but this difference was not statistically significant. 

Conclusion: These results suggest that right and left maxillary first molars should be treated differently during preparation of cavities. Further studies must be done with larger samples as well as for other molar teeth in different populations to reveal the morphology of the molar for further considerations in restorative dentistry.


Keywords


Micro CT; maxillary molars; anatomy; pulp dimensions; restorative dentistry



DOI: http://dx.doi.org/10.17096/jiufd.61722

References


Christie WH, Thompson GK. The importance of endodontic access in locating maxillary and mandibular molar canals. J Can Dent Assoc 1994;60(6):527-532, 535-526.

Tyas MJ, Anusavice KJ, Frencken JE, Mount GJ. Minimal intervention dentistry--a review. Fdi commission project 1-97. Int Dent J 2000;50(1):1-12.

Meyer-Lueckel H, Paris S. When and how to intervene in the caries process. Oper Dent 2016;41(S7):S35-s47.

Murray PE, Windsor LJ, Smyth TW, Hafez AA, Cox CF. Analysis of pulpal reactions to restorative procedures, materials, pulp capping, and future therapies. Crit Rev Oral Biol Med 2002;13(6):509-520.

Zheng QH, Wang Y, Zhou XD, Wang Q, Zheng GN, Huang DM. A cone-beam computed tomography study of maxillary first permanent molar root and canal morphology in a chinese population. J Endod 2010;36(9):1480-1484.

Silva EJ, Nejaim Y, Silva AI, Haiter-Neto F, Zaia AA, Cohenca N. Evaluation of root canal configuration of maxillary molars in a brazilian population using cone-beam computed tomographic imaging: An in vivo study. J Endod 2014;40(2):173-176.

Rouhani A, Bagherpour A, Akbari M, Azizi M, Nejat A, Naghavi N. Cone-beam computed tomography evaluation of maxillary first and second molars in iranian population: A morphological study. Iran Endod J 2014;9(3):190-194.

Kimura O, Dykes E, Fearnhead RW. The relationship between the surface area of the enamel crowns of human teeth and that of the dentine-enamel junction. Arch Oral Biol 1977;22(12):677-683.

Lyroudia K, Pantelidou O, Mikrogeorgis G, Chatzikallinikidis C, Nikopoulos N, Pitas I. The use of 3d computerized reconstruction for the study of coronal microleakage. Int Endod J 2000;33(3):243-247.

Lyroudia K, Mikrogeorgis G, Bakaloudi P, Kechagias E, Nikolaidis N, Pitas I. Virtual endodontics: Three-dimensional tooth volume representations and their pulp cavity access. J Endod 2002;28(8):599-602.

Schwass DR, Swain MV, Purton DG, Leichter JW. A system of calibrating microtomography for use in caries research. Caries Res 2009;43(4):314-321.

Acosta Vigouroux SA, Trugeda Bosaans SA. Anatomy of the pulp chamber floor of the permanent maxillary first molar. J Endod 1978;4(7):214-219.

Velmurugan N, Venkateshbabu N, Abarajithan M, Kandaswamy D. Evaluation of the pulp chamber size of human maxillary first molars: An institution based in vitro study. Indian J Dent Res 2008;19(2):92-94.

Mikrogeorgis G, Lyroudia KL, Nikopoulos N, Pitas I, Molyvdas I, Lambrianidis TH. 3d computer-aided reconstruction of six teeth with morphological abnormalities. Int Endod J 1999;32(2):88-93.

Orhan AI, Orhan K, Ozgul BM, Oz FT. Analysis of pulp chamber of primary maxillary second molars using 3d micro-ct system: An in vitro study. Eur J Paediatr Dent 2015;16(4):305-310.

Agematsu H, Ohnishi M, Matsunaga S, Saka H, Nakahara K, Ide Y. Three-dimensional analysis of pulp chambers in mandibular first deciduous molars. Pediatric Dental Journal 20(1):28-33.

Amano M, Agematsu H, Abe S, Usami A, Matsunaga S, Suto K, Ide Y. Three-dimensional analysis of pulp chambers in maxillary second deciduous molars. J Dent 2006;34(7):503-508.

Markvart M, Bjorndal L, Darvann TA, Larsen P, Dalstra M, Kreiborg S. Three-dimensional analysis of the pulp cavity on surface models of molar teeth, using x-ray micro-computed tomography. Acta Odontol Scand 2012;70(2):133-139.

Chang PC, Liang K, Lim JC, Chung MC, Chien LY. A comparison of the thresholding strategies of micro-ct for periodontal bone loss: A pilot study. Dentomaxillofacial Radiology 2013;42(2):66925194.

Swain MV, Xue J. State of the art of micro-ct applications in dental research. Int J Oral Sci 2009;1(4):177-188.

Rechmann P, Domejean S, Rechmann BM, Kinsel R, Featherstone JD. Approximal and occlusal carious lesions: Restorative treatment decisions by california dentists. J Am Dent Assoc 2016;147(5):328-338.

Sockwell C. Clinical evaluation of anterior restorative materials. Dent Clin North Am 1976;20(2):403-422.

Boushell LW, Donovan TO, Roberson TM. 13. In: Heymann HO, Swift EJ, Ritter AV,editors. Sturdevant's art & science of operative dentistry. Elsevier Health Sciences, 2014, p.339-352.

Bayne SC, Thompson JY. 18e. In: Heymann HO, Swift EJ, Ritter AV,editors. Sturdevant's art & science of operative dentistry. Elsevier Health Sciences, 2014, p.e1-e97.

Banerjee A. Minimal intervention dentistry: Part 7. Minimally invasive operative caries management: Rationale and techniques. Br Dent J 2013;214(3):107-111.

Mehta SB, Banerji S, Millar BJ, Suarez-Feito JM. Current concepts on the management of tooth wear: Part 2. Active restorative care 1: The management of localised tooth wear. Br Dent J 2012;212(2):73-82.

Murdoch-Kinch CA, McLean ME. Minimally invasive dentistry. J Am Dent Assoc 2003;134(1):87-95.

Swift EJ, Trope M, Ritter AV. Vital pulp therapy for the mature tooth – can it work? Endodontic Topics 2003;5(1):49-56.

Ritter AV, Swift EJ. Current restorative concepts of pulp

protection. Endodontic Topics 2003;5(1):41-48.

Goracci G, Mori G. Scanning electron microscopic evaluation of resin-dentin and calcium hydroxide-dentin interface with resin composite restorations. Quintessence Int 1996;27(2):129-135.

Jung M, Lommel D, Klimek J. The imaging of root canal obturation using micro-ct. Int Endod J 2005;38(9):617-626.




Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.