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Dental anomaly patterns associated with tooth agenesis.
Acta Odontol Scand. 2017 Apr; 75(3):161-165.AO

Abstract

OBJECTIVE

The objective of this study is to evaluate the relationship between tooth agenesis and the occurrence of other dental anomalies in children and adolescents.

MATERIAL AND METHODS

Panoramic radiographs of 195 subjects with tooth agenesis, except for the third molar, were retrospectively examined and compared with a non-agenesis control group of 600 subjects. Their ages ranged from 7 to 15 years. Panoramic and periapical radiographs were used to analyze the presence of other associated dental anomalies. The occurrences of these anomalies were compared with those in the non-agenesis group.

RESULTS

Subjects with tooth agenesis showed a significantly higher prevalence of a small maxillary lateral incisor (17.7%), distoangulation of the mandibular second premolar (6.5%), delayed development of a permanent tooth (10.8%), and hypo-occlusion of a primary molar (11.8%). In contrast, the prevalence of a supernumerary tooth was higher in the control group, and no difference was observed in the prevalence of ectopic eruption of a first molar. According to the agenesis area, microdontia of the maxillary lateral incisors occurred more often in patients with anterior or premolar agenesis than in the molar agenesis groups. Distoangulation of the mandibular second premolars, delayed tooth development, and hypo-occlusion of the primary molars were associated with premolar tooth agenesis.

CONCLUSIONS

A small maxillary lateral incisor, distoangulation of the mandibular second premolar, delayed development of a permanent tooth, and hypo-occlusion of a primary molar were frequently associated with tooth agenesis, providing additional evidence of a genetic interrelationship in the causes of these dental anomalies.

Authors+Show Affiliations

a Department of Pediatric Dentistry, College of Dentistry , Wonkwang University , Iksan , Republic of Korea.a Department of Pediatric Dentistry, College of Dentistry , Wonkwang University , Iksan , Republic of Korea.a Department of Pediatric Dentistry, College of Dentistry , Wonkwang University , Iksan , Republic of Korea.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28121195

Citation

Choi, Su Ji, et al. "Dental Anomaly Patterns Associated With Tooth Agenesis." Acta Odontologica Scandinavica, vol. 75, no. 3, 2017, pp. 161-165.
Choi SJ, Lee JW, Song JH. Dental anomaly patterns associated with tooth agenesis. Acta Odontol Scand. 2017;75(3):161-165.
Choi, S. J., Lee, J. W., & Song, J. H. (2017). Dental anomaly patterns associated with tooth agenesis. Acta Odontologica Scandinavica, 75(3), 161-165. https://doi.org/10.1080/00016357.2016.1273385
Choi SJ, Lee JW, Song JH. Dental Anomaly Patterns Associated With Tooth Agenesis. Acta Odontol Scand. 2017;75(3):161-165. PubMed PMID: 28121195.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dental anomaly patterns associated with tooth agenesis. AU - Choi,Su Ji, AU - Lee,Je Woo, AU - Song,Ji Hyun, Y1 - 2017/01/25/ PY - 2017/1/26/pubmed PY - 2017/6/18/medline PY - 2017/1/26/entrez KW - Genetic predisposition KW - hypodontia KW - panoramic radiograph KW - tooth abnormalities SP - 161 EP - 165 JF - Acta odontologica Scandinavica JO - Acta Odontol. Scand. VL - 75 IS - 3 N2 - OBJECTIVE: The objective of this study is to evaluate the relationship between tooth agenesis and the occurrence of other dental anomalies in children and adolescents. MATERIAL AND METHODS: Panoramic radiographs of 195 subjects with tooth agenesis, except for the third molar, were retrospectively examined and compared with a non-agenesis control group of 600 subjects. Their ages ranged from 7 to 15 years. Panoramic and periapical radiographs were used to analyze the presence of other associated dental anomalies. The occurrences of these anomalies were compared with those in the non-agenesis group. RESULTS: Subjects with tooth agenesis showed a significantly higher prevalence of a small maxillary lateral incisor (17.7%), distoangulation of the mandibular second premolar (6.5%), delayed development of a permanent tooth (10.8%), and hypo-occlusion of a primary molar (11.8%). In contrast, the prevalence of a supernumerary tooth was higher in the control group, and no difference was observed in the prevalence of ectopic eruption of a first molar. According to the agenesis area, microdontia of the maxillary lateral incisors occurred more often in patients with anterior or premolar agenesis than in the molar agenesis groups. Distoangulation of the mandibular second premolars, delayed tooth development, and hypo-occlusion of the primary molars were associated with premolar tooth agenesis. CONCLUSIONS: A small maxillary lateral incisor, distoangulation of the mandibular second premolar, delayed development of a permanent tooth, and hypo-occlusion of a primary molar were frequently associated with tooth agenesis, providing additional evidence of a genetic interrelationship in the causes of these dental anomalies. SN - 1502-3850 UR - https://www.unboundmedicine.com/medline/citation/28121195/Dental_anomaly_patterns_associated_with_tooth_agenesis_ L2 - http://www.tandfonline.com/doi/full/10.1080/00016357.2016.1273385 DB - PRIME DP - Unbound Medicine ER -