Abstract
BACKGROUND: Mesiodens is the most prevalent type of supernumerary tooth and frequently interferes with the eruption of maxillary incisors. While its dental implications are well described, its potential impact on maxillofacial structures-such as nasal septum deviation (NSD) and transverse skeletal development-has not been thoroughly investigated. This study aimed to evaluate these effects in pediatric patients using cone-beam computed tomography (CBCT). METHODS: A total of 102 pediatric patients with mesiodens and 102 age- and sex-matched controls were retrospectively evaluated. Maxillofacial parameters, including nasal base width, maxillary and mandibular transverse widths, and the presence of NSD, were assessed using CBCT. Statistical analyses involved independent t-tests, chi-square tests, and one-way ANOVA with post hoc comparisons (p < .05). RESULTS: The presence of mesiodens was significantly associated with a narrower nasal base width (p < .001) and a higher prevalence of NSD (p = .009). No significant differences were observed between groups regarding maxillary (p = .260) or mandibular width (p = .078). CONCLUSIONS: These findings suggest that mesiodens may influence not only dental eruption but also broader craniofacial development. Early detection and comprehensive radiographic evaluation may help mitigate potential maxillofacial complications associated with this anomaly.