TY - JOUR T1 - Relationship between the order of permanent tooth eruption and the predominance of motor function laterality: a cross-sectional study JO - Anales de Pediatría (English Edition) T2 - AU - Veloso,Ana AU - López Giménez,Julián AU - Vázquez,M. Carmen AU - Corcuera,José Ramón AU - Guinot,Francisco AU - Puigdollers,Andreu SN - 23412879 M3 - 10.1016/j.anpede.2020.12.004 DO - 10.1016/j.anpede.2020.12.004 UR - https://www.analesdepediatria.org/en-relationship-between-order-permanent-tooth-articulo-S234128792030257X AB - ObjectivesTo assess whether the order of permanent tooth eruption may be a useful indicator of motor function laterality. MethodsWe conducted a cross-sectional study in schoolchildren aged 6–8 years old evaluated in the annual school-based routine dental health examinations conducted by the staff of the primary care centre of an urban district in Barcelona, Spain. We also evaluated hand, foot, eye, and auditory lateralities using a battery of simple exercises. Bivariate and multivariate analysis of data was performed. ResultsThe study sample included 388 children, 51.3% female, with a mean age of 6.5 years. Right laterality was the predominant side in every variable under study, especially in tooth eruption (310 children; 80%), handedness (349; 89.9%), and footedness (337; 86.8%). In the bivariate analysis, we found a statistically significant association of tooth eruption laterality with handedness and footedness, and of tooth eruption laterality with ocular and auditory lateralities (p<.001). In the multivariate analysis, tooth eruption laterality and foot laterality were independent variables significantly associated with hand laterality. The diagnostic accuracy of tooth eruption laterality and foot laterality in relation to hand laterality as reference, showed a similar sensitivity and positive and negative predictive values, but the specificity of dentition laterality was higher (79% versus 66%). ConclusionsLaterality in the order of dental eruption is a useful indicator of right or left motor function laterality in developing individuals that may be particularly helpful to determine the main dominance in cases of crossed laterality. ER -