González-Cabrera Challana; Ticona-Flores, Jesús M. & Diéguez-Pérez, Montserrat

Temporary mandibular molars in panoramic radiographs of pediatric patients with unilateral posterior crossbite (UPCB). This cross-sectional and retrospective study analyzed 114 orthopantomograms of patients between 6 - 9 years of age with unilateral posterior crossbite diagnosis. The first and second mandibular molars were analyzed. Their root resorption stage was typified, and the root lengths were measured; to later compare the data obtained depending on the malocclusion side. 86.4 % of molars showed a linear resorption pattern, and atypical resorption prevalence in patients with UPCB was 13.5 %. The total length average of the first molars on the side of the malocclusion was 8.20 mm, while the contralateral exhibited a mean of 9.29 mm. Lastly, the second molars had a mean length of 11.12 mm in crossbite side and 12.30 mm in the normal occlusion side. UPCB could affect physiological resorption by observing a resorption alteration in those mandibular molars located on the malocclusion side.

KEY WORDS: Unilateral posterior crossbite; Root resorption; Malocclusion; Deciduous tooth.

GONZÁLEZ-CABRERA, C.; TICONA-FLORES, J. M. & DIÉGUEZ-PÉREZ, M. Root resorption pattern in panoramic radiographs of pediatric patients with unilateral posterior crossbite: A cross-sectional and retrospective study. Int. J. Morphol., 40(5):1321-1327, 2022.