Cone beam computed tomography indications for interdisciplinary therapy planning of impacted canines.

Oral Surg Oral Med Oral Pathol Oral Radiol

Department of Clinical Dentistry, University of Bergen, Bergen, Norway; Faculty of Odontology, Malmö University, Malmö, Sweden.

Published: January 2023


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Article Abstract

Objective: To investigate how cone beam computed tomography (CBCT) affects the therapeutic planning of impacted maxillary canines.

Study Design: A total of 132 impacted canines from 89 pediatric patients were collected from 3 specialist clinics in Stockholm, Sweden. An interdisciplinary therapy planning team consisting of 5 dental specialists evaluated each case and chose their preferred treatment alternative, initially without and later with CBCT images, to decide whether CBCT was justified for therapy planning. Predefined variables measurable using only 2-dimensional (2D) assessments were analyzed using stepwise logistic regression analyses.

Results: The CBCT was considered indicated in 47% of the cases. Additional information from CBCT led to a treatment decision change in 9.8%. Significant 2D predictors for CBCT justification were horizontal canine angulation compared with vertical angulation (odds ratio [OR] = 10.9), extraction strategy involvement (OR = 6.7), and buccally positioned canines compared with palatal (OR = 5.3), central (OR = 25.0), and distal or uncertain positions (OR = 7.7).

Conclusions: The benefit-risk assessment of CBCT for impacted canines may be reinforced by performing and applying justification decisions for CBCT acquisition at the therapeutic thinking level. If preliminary treatment planning motivates further in-depth investigation of either root status or tooth location, a CBCT is indicated.

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http://dx.doi.org/10.1016/j.oooo.2022.06.013DOI Listing

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