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Symmetry of root and root canal morphology of maxillary and mandibular molars in a white population: a cone-beam computed tomography study in vivo.
J Endod. 2013 Dec; 39(12):1545-8.JE

Abstract

INTRODUCTION

The aim of the present study was to use cone-beam computed tomography (CBCT) to analyze root canal anatomy and symmetry of maxillary and mandibular first and second molar teeth of a white population.

METHODS

A total of 201 patients who required CBCT examinations as part of their dental diagnosis and treatment were enrolled in the present study. Overall, 596 healthy, untreated, well-developed maxillary and mandibular molar teeth (161 maxillary first molars, 157 maxillary second molars, 117 mandibular first molars, and 161 mandibular second molars) were examined by CBCT to establish the symmetry in root and canal anatomy between right and left sides in the same patient by evaluating the number of roots and root canals and the root canal configuration.

RESULTS

Three separate roots with 3 separate canals was the normal anatomy of maxillary first and second molars. Most mandibular first and second molars had 2 separate roots, and the majority had 3 canals. In the present study, first molars, both maxillary and mandibular, exhibited greater asymmetry than the second molars. Maxillary first molars were found to be symmetrical in 71.1% of patients, whereas maxillary second molars were symmetrical in 79.6%. The remaining 28.9% and 20.4% of patients, respectively, showed asymmetry. Around 30% of the mandibular first molars and 20% of the mandibular second molars showed asymmetry.

CONCLUSIONS

The results of the present study reported a percentage of symmetry that varied from 70%-81%. These variations in symmetry should be taken in high consideration when treating 2 opposite molars in the same patient, because their anatomy may be different in up to 30% of the cases.

Authors+Show Affiliations

Department of Endodontics, "Sapienza" University of Rome, Rome, Italy. Electronic address: endo@gianlucaplotino.com.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24238444

Citation

Plotino, Gianluca, et al. "Symmetry of Root and Root Canal Morphology of Maxillary and Mandibular Molars in a White Population: a Cone-beam Computed Tomography Study in Vivo." Journal of Endodontics, vol. 39, no. 12, 2013, pp. 1545-8.
Plotino G, Tocci L, Grande NM, et al. Symmetry of root and root canal morphology of maxillary and mandibular molars in a white population: a cone-beam computed tomography study in vivo. J Endod. 2013;39(12):1545-8.
Plotino, G., Tocci, L., Grande, N. M., Testarelli, L., Messineo, D., Ciotti, M., Glassman, G., D'ambrosio, F., & Gambarini, G. (2013). Symmetry of root and root canal morphology of maxillary and mandibular molars in a white population: a cone-beam computed tomography study in vivo. Journal of Endodontics, 39(12), 1545-8. https://doi.org/10.1016/j.joen.2013.09.012
Plotino G, et al. Symmetry of Root and Root Canal Morphology of Maxillary and Mandibular Molars in a White Population: a Cone-beam Computed Tomography Study in Vivo. J Endod. 2013;39(12):1545-8. PubMed PMID: 24238444.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Symmetry of root and root canal morphology of maxillary and mandibular molars in a white population: a cone-beam computed tomography study in vivo. AU - Plotino,Gianluca, AU - Tocci,Luigi, AU - Grande,Nicola M, AU - Testarelli,Luca, AU - Messineo,Daniela, AU - Ciotti,Mario, AU - Glassman,Gary, AU - D'ambrosio,Ferdinando, AU - Gambarini,Gianluca, Y1 - 2013/10/15/ PY - 2013/02/27/received PY - 2013/08/28/revised PY - 2013/09/09/accepted PY - 2013/11/19/entrez PY - 2013/11/19/pubmed PY - 2015/10/17/medline KW - CBCT KW - mandibular molars KW - maxillary molars KW - root canal morphology KW - symmetry SP - 1545 EP - 8 JF - Journal of endodontics JO - J Endod VL - 39 IS - 12 N2 - INTRODUCTION: The aim of the present study was to use cone-beam computed tomography (CBCT) to analyze root canal anatomy and symmetry of maxillary and mandibular first and second molar teeth of a white population. METHODS: A total of 201 patients who required CBCT examinations as part of their dental diagnosis and treatment were enrolled in the present study. Overall, 596 healthy, untreated, well-developed maxillary and mandibular molar teeth (161 maxillary first molars, 157 maxillary second molars, 117 mandibular first molars, and 161 mandibular second molars) were examined by CBCT to establish the symmetry in root and canal anatomy between right and left sides in the same patient by evaluating the number of roots and root canals and the root canal configuration. RESULTS: Three separate roots with 3 separate canals was the normal anatomy of maxillary first and second molars. Most mandibular first and second molars had 2 separate roots, and the majority had 3 canals. In the present study, first molars, both maxillary and mandibular, exhibited greater asymmetry than the second molars. Maxillary first molars were found to be symmetrical in 71.1% of patients, whereas maxillary second molars were symmetrical in 79.6%. The remaining 28.9% and 20.4% of patients, respectively, showed asymmetry. Around 30% of the mandibular first molars and 20% of the mandibular second molars showed asymmetry. CONCLUSIONS: The results of the present study reported a percentage of symmetry that varied from 70%-81%. These variations in symmetry should be taken in high consideration when treating 2 opposite molars in the same patient, because their anatomy may be different in up to 30% of the cases. SN - 1878-3554 UR - https://www.unboundmedicine.com/medline/citation/24238444/Symmetry_of_root_and_root_canal_morphology_of_maxillary_and_mandibular_molars_in_a_white_population:_a_cone_beam_computed_tomography_study_in_vivo_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0099-2399(13)00819-4 DB - PRIME DP - Unbound Medicine ER -