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oai:docta.ucm.es:20.500.14352/1236962025-09-04T23:48:42Zcom_20.500.14352_14col_20.500.14352_15

Ticona-Flores, Jesús Miguel Reichard-Monefeldt, Guillermo Diéguez Pérez, Montserrat 2025-09-04T09:57:42Z 2025-09-04T09:57:42Z 2024-12-23 Ticona-Flores JM, Reichard-Monefeldt G, Diéguez-Pérez M. Possible link between the preferential unilateral chewing side and eruptive guidance of the maxillary canine germ : Cross-sectional study on panoramic radiographs. J Orofac Orthop. 2024 Dec 23. English. doi: 10.1007/s00056-024-00566-7 1434-5293 10.1007/s00056-024-00566-7 https://hdl.handle.net/20.500.14352/123696 1615-6714 https://doi.org/10.1007/s00056-024-00566-7 39714629 https://pubmed.ncbi.nlm.nih.gov/39714629/ Aim: To determine whether unilateral preferent chewing (UPC) affects the position and angulation of the permanent maxillary canine germ on the preferred side. Materials and methods: In a retrospective cross-sectional study, medical records from children 7.91(± 0.8) years old with unilateral preferred chewing side and unilateral posterior crossbite were selected. The position of the maxillary canines was analysed by measuring the following angles and distances: the angles formed between the canine axis and the midline (PS; potential impact range > 15°), and that between the canine axis and the bicondylar line (W; potential impact range < 75°). In addition, the canine's position with respect to the lateral incisor (EK; potential impact range > II) and the distance between the canine cusp and the occlusal plane (CCOP potential impact range > 10 mm) were measured. Results: The final sample consisted of 106 radiographs; thus, a total of 212 maxillary canines were analysed. Tooth angulation on the preferred chewing side was higher for the angle PS with an average angle of 13.88° (± 7.56) and its position was more frequently found in sector II (49.1%), according to the EK analysis, compared to its contralateral that had an average of 11.75° (± 10.13) for the PS angle and a frequency of 67% in the sector I (p < 0.05 in both analyses). The data obtained for the angle W resulted in an average of 76.12° (± 9.09), while on the contralateral side it was 77.16° (± 12.56; p = 0.012). Lastly, according to the CCOP analysis, the preferred chewing side measured on average 15.3 mm (± 2.4), while on the nonpreferred side it was 15.19 mm (± 2.43; p = 0.143). Conclusions: Based on this research, UPC seems to have a certain unfavourable influence on canine position and angulation. Thus, this is another factor to consider in decision-making regarding early treatment of this development disorder. eng restricted access Possible link between the preferential unilateral chewing side and eruptive guidance of the maxillary canine germ: cross-sectional study on panoramic radiographs journal article