Analysis of the distribution of supernumerary teeth and the characteristics of mesiodens in Bengbu, China: a retrospective study
| Autor: | Xiaofei Xie, Lili Zhao, Rongxiu Zhang, Shanshan Liu, Kai Zhang, Ren Yang |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male China Adolescent Radiography Tooth Eruption 030218 nuclear medicine & medical imaging Young Adult 03 medical and health sciences 0302 clinical medicine Tooth length Humans Medicine Radiology Nuclear Medicine and imaging Dentistry (miscellaneous) Supernumerary Child Aged Retrospective Studies Aged 80 and over Orthodontics business.industry Tooth Impacted Infant Retrospective cohort study 030206 dentistry Middle Aged Tooth Supernumerary Erupted mesiodens Child Preschool Inverted mesiodens Oral and maxillofacial surgery Female business |
| Zdroj: | Oral Radiology. 37:218-223 |
| ISSN: | 1613-9674 0911-6028 |
| Popis: | To evaluate the distribution of supernumerary teeth (ST) and the characteristics of mesiodens. Panoramic radiographs of 48,700 outpatients were used to assess the distribution of ST. A total of 142 cone beam computed tomography (CBCT) images were used to evaluate the characteristics of mesiodens. A total of 1.24% of individuals aged from 1 to 98 years were diagnosed with ST among 48,700 outpatients, and males had a higher percentage of ST than females (2.94:1); patients aged 6–12 years were the most frequently diagnosed. More females had ST impacted in bone than males. The percentages of patients with 1 and 2 ST were 0.949 and 0.290%, respectively. The most frequent location, crown direction, and morphology of mesiodens were palatal, inverted, and conical, respectively. The tooth lengths of mesiodens in males and of erupted mesiodens were longer than that those in females and of unerupted mesiodens, respectively. Inverted mesiodens had the shortest tooth length compared with vertical and horizontal mesiodens. These results were statistically significant. The distribution of ST and mesiodens were both related to gender, and patients aged 6–12 years were the most frequently detected. The length of the mesiodens was associated with the growth direction and mesiodens eruption. |
| Databáze: | OpenAIRE |
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