Prevalence and Clinical Characteristics of Supernumerary Teeth in a Pediatric Clinical Population: A Retrospective Observational Study
- 1UNIPRO—Oral Pathology and Rehabilitation Research Unit, CESPU University, 4585-116 Gandra, Portugal
- 2Stomatology Department, University Local Health Unit São Joao, 4200-319 Porto, Portugal
Abstract
Background/Objectives: Hyperdontia is a dental developmental anomaly frequently associated with clinical complications such as delayed eruption, diastemas, and root resorption. This retrospective observational study aimed to evaluate the prevalence and clinical characteristics of supernumerary teeth in a Portuguese pediatric clinical population. Methods: Analyzing orthopantomograms from 1992 patients across two university clinics between 2016 and 2026, demographic and clinical variables were evaluated. The inclusion criteria comprised high-quality, accessible radiographs obtained within the last 10 years from patients aged between 5 and 18 years at the time of the examination. Results: The overall prevalence of supernumerary teeth was 1.66%. The mesiodens was the most common type, exclusively maxillary, predominantly conical, and highly impacted (86.7%). A non-significant male predilection was observed. The overall mean age at diagnosis for mesiodens was 9.87 ± 3.98 years. Posterior anomalies presented negligible prevalence (≤0.4%). Conclusions: These findings show the mesiodens as the primary supernumerary tooth. The high impaction rate at diagnosis highlights the diagnostic value of panoramic radiography when clinically indicated, supporting timely identification and individualized treatment planning.
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BibTeX
@article{oliveira2026prevalence,
title = {{Prevalence and Clinical Characteristics of Supernumerary Teeth in a Pediatric Clinical Population: A Retrospective Observational Study}},
author = {Ana Catarina Oliveira and Inês Ferreira and Sofia Sousa-Santos and Beatriz dos Santos and Mariana Azevedo and Primavera Sousa-Santos and Aline Gonçalves and Selma Pascoal and Teresa Vale},
journal = {Journal of Clinical Medicine},
year = {2026},
month = nov,
doi = {10.3390/jcm15218488},
url = {https://www.mdpi.com/2077-0383/15/21/8488},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Prevalence and Clinical Characteristics of Supernumerary Teeth in a Pediatric Clinical Population: A Retrospective Observational Study
AU - Ana Catarina Oliveira
AU - Inês Ferreira
AU - Sofia Sousa-Santos
AU - Beatriz dos Santos
AU - Mariana Azevedo
AU - Primavera Sousa-Santos
AU - Aline Gonçalves
AU - Selma Pascoal
AU - Teresa Vale
PY - 2026
DA - 2026/11/01
JO - Journal of Clinical Medicine
DO - 10.3390/jcm15218488
UR - https://www.mdpi.com/2077-0383/15/21/8488
AB - Background/Objectives: Hyperdontia is a dental developmental anomaly frequently associated with clinical complications such as delayed eruption, diastemas, and root resorption. This retrospective observational study aimed to evaluate the prevalence and clinical characteristics of supernumerary teeth in a Portuguese pediatric clinical population. Methods: Analyzing orthopantomograms from 1992 patients across two university clinics between 2016 and 2026, demographic and clinical variables were evaluated. The inclusion criteria comprised high-quality, accessible radiographs obtained within the last 10 years from patients aged between 5 and 18 years at the time of the examination. Results: The overall prevalence of supernumerary teeth was 1.66%. The mesiodens was the most common type, exclusively maxillary, predominantly conical, and highly impacted (86.7%). A non-significant male predilection was observed. The overall mean age at diagnosis for mesiodens was 9.87 ± 3.98 years. Posterior anomalies presented negligible prevalence (≤0.4%). Conclusions: These findings show the mesiodens as the primary supernumerary tooth. The high impaction rate at diagnosis highlights the diagnostic value of panoramic radiography when clinically indicated, supporting timely identification and individualized treatment planning.
SN - 2077-0383
ER -