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Comparison of periapical radiography and limited cone-beam computed tomography in mandibular molars for analysis of anatomical landmarks before apical surgery.
J Endod 2011; 37(2):151-7JE

Abstract

INTRODUCTION

The purpose of the present study was to evaluate the detectability and dimensions of periapical lesions, the relationship of the mandibular canal to the roots of the respective teeth, and the dimension of the buccal bone by using limited cone-beam computed tomography (CBCT) in comparison to conventional periapical (PA) radiographs for evaluation of mandibular molars before apical surgery.

METHODS

The study comprised 38 molars with 75 roots. The type of PA lesion as diagnosed on PA radiographs was compared with the type of lesion seen on sagittal and coronal CBCT sections. The distances of the apices of the first mandibular molars and basal border of the PA lesion to the coronal lining of the mandibular canal were assessed with PA radiographs and corresponding sagittal and coronal CBCT images. Furthermore, coronal CBCT images were used to measure the distance from the apices to the buccal bone surface and the corresponding width of the cortical bone plate.

RESULTS

Of 58 detected PA lesions, 15 (25.9%) lesions diagnosed with sagittal CBCT slices were missed with PA radiography. The distance between the apices and the upper border of the mandibular canal was only measurable in 24 of 68 radiographs (35.3%) by using PA images. The cortical bone wall had a mean thickness of 1.7 mm, whereas the total buccal bone wall (cortical and spongious) measured 5.3 mm on average.

CONCLUSIONS

The present study highlights the advantages of using limited CBCT for treatment planning in mandibular molars before apical surgery.

Authors+Show Affiliations

Department of Oral Surgery and Stomatology, University of Bern, Bern, Switzerland. michael.bornstein@zmk.unibe.chNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Evaluation Study
Journal Article

Language

eng

PubMed ID

21238794

Citation

Bornstein, Michael M., et al. "Comparison of Periapical Radiography and Limited Cone-beam Computed Tomography in Mandibular Molars for Analysis of Anatomical Landmarks Before Apical Surgery." Journal of Endodontics, vol. 37, no. 2, 2011, pp. 151-7.
Bornstein MM, Lauber R, Sendi P, et al. Comparison of periapical radiography and limited cone-beam computed tomography in mandibular molars for analysis of anatomical landmarks before apical surgery. J Endod. 2011;37(2):151-7.
Bornstein, M. M., Lauber, R., Sendi, P., & von Arx, T. (2011). Comparison of periapical radiography and limited cone-beam computed tomography in mandibular molars for analysis of anatomical landmarks before apical surgery. Journal of Endodontics, 37(2), pp. 151-7. doi:10.1016/j.joen.2010.11.014.
Bornstein MM, et al. Comparison of Periapical Radiography and Limited Cone-beam Computed Tomography in Mandibular Molars for Analysis of Anatomical Landmarks Before Apical Surgery. J Endod. 2011;37(2):151-7. PubMed PMID: 21238794.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of periapical radiography and limited cone-beam computed tomography in mandibular molars for analysis of anatomical landmarks before apical surgery. AU - Bornstein,Michael M, AU - Lauber,Roland, AU - Sendi,Pedram, AU - von Arx,Thomas, PY - 2010/07/28/received PY - 2010/11/11/revised PY - 2010/11/12/accepted PY - 2011/1/18/entrez PY - 2011/1/18/pubmed PY - 2011/5/21/medline SP - 151 EP - 7 JF - Journal of endodontics JO - J Endod VL - 37 IS - 2 N2 - INTRODUCTION: The purpose of the present study was to evaluate the detectability and dimensions of periapical lesions, the relationship of the mandibular canal to the roots of the respective teeth, and the dimension of the buccal bone by using limited cone-beam computed tomography (CBCT) in comparison to conventional periapical (PA) radiographs for evaluation of mandibular molars before apical surgery. METHODS: The study comprised 38 molars with 75 roots. The type of PA lesion as diagnosed on PA radiographs was compared with the type of lesion seen on sagittal and coronal CBCT sections. The distances of the apices of the first mandibular molars and basal border of the PA lesion to the coronal lining of the mandibular canal were assessed with PA radiographs and corresponding sagittal and coronal CBCT images. Furthermore, coronal CBCT images were used to measure the distance from the apices to the buccal bone surface and the corresponding width of the cortical bone plate. RESULTS: Of 58 detected PA lesions, 15 (25.9%) lesions diagnosed with sagittal CBCT slices were missed with PA radiography. The distance between the apices and the upper border of the mandibular canal was only measurable in 24 of 68 radiographs (35.3%) by using PA images. The cortical bone wall had a mean thickness of 1.7 mm, whereas the total buccal bone wall (cortical and spongious) measured 5.3 mm on average. CONCLUSIONS: The present study highlights the advantages of using limited CBCT for treatment planning in mandibular molars before apical surgery. SN - 1878-3554 UR - https://www.unboundmedicine.com/medline/citation/21238794/Comparison_of_periapical_radiography_and_limited_cone_beam_computed_tomography_in_mandibular_molars_for_analysis_of_anatomical_landmarks_before_apical_surgery_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0099-2399(10)00922-2 DB - PRIME DP - Unbound Medicine ER -