Tags

Type your tag names separated by a space and hit enter

Agenesis of maxillary lateral incisors and associated dental anomalies.
Am J Orthod Dentofacial Orthop. 2010 Jun; 137(6):732.e1-6; discussion 732-3.AJ

Abstract

INTRODUCTION

The objectives of this study were to evaluate the prevalence of dental anomalies in patients with agenesis of maxillary lateral incisors and to compare the findings with the prevalence of these anomalies in the general population.

METHODS

A sample of 126 patients, aged 7 to 35 years, with agenesis of at least 1 maxillary lateral incisor was selected. Panoramic and periapical radiographs and dental casts were used to analyze other associated dental anomalies, including agenesis of other permanent teeth, ectopia of unerupted permanent teeth, microdontia of maxillary lateral incisors, and supernumerary teeth. The occurrence of these anomalies was compared with prevalence data previously reported for the general population. Statistical testing was performed with the chi-square test (P <0.05) and the odds ratio.

RESULTS

Patients with maxillary lateral incisor agenesis had a significantly increased prevalence rate of permanent tooth agenesis (18.2%), excluding the third molars. The occurrence of third-molar agenesis in a subgroup aged 14 years or older (n = 76) was 35.5%. The frequencies of maxillary second premolar agenesis (10.3%), mandibular second premolar agenesis (7.9%), microdontia of maxillary lateral incisors (38.8%), and distoangulation of mandibular second premolars (3.9%) were significantly increased in our sample compared with the general population. In a subgroup of patients aged 10 years or older (n = 115), the prevalence of palatally displaced canines was elevated (5.2%). The prevalences of mesioangulation of mandibular second molars and supernumerary teeth were not higher in the sample.

CONCLUSIONS

Permanent tooth agenesis, maxillary lateral incisor microdontia, palatally displaced canines, and distoangulation of mandibular second premolars are frequently associated with maxillary lateral incisor agenesis, providing additional evidence of a genetic interrelationship in the causes of these dental anomalies.

Authors+Show Affiliations

Department of Orthodontics, Hospital of Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil. dgarib@uol.com.brNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20685523

Citation

Garib, Daniela Gamba, et al. "Agenesis of Maxillary Lateral Incisors and Associated Dental Anomalies." American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, vol. 137, no. 6, 2010, pp. 732.e1-6; discussion 732-3.
Garib DG, Alencar BM, Lauris JR, et al. Agenesis of maxillary lateral incisors and associated dental anomalies. Am J Orthod Dentofacial Orthop. 2010;137(6):732.e1-6; discussion 732-3.
Garib, D. G., Alencar, B. M., Lauris, J. R., & Baccetti, T. (2010). Agenesis of maxillary lateral incisors and associated dental anomalies. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 137(6), e1-6; discussion 732-3. https://doi.org/10.1016/j.ajodo.2009.12.024
Garib DG, et al. Agenesis of Maxillary Lateral Incisors and Associated Dental Anomalies. Am J Orthod Dentofacial Orthop. 2010;137(6):732.e1-6; discussion 732-3. PubMed PMID: 20685523.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Agenesis of maxillary lateral incisors and associated dental anomalies. AU - Garib,Daniela Gamba, AU - Alencar,Bárbara Maria, AU - Lauris,José Roberto Pereira, AU - Baccetti,Tiziano, PY - 2009/10/01/received PY - 2009/12/01/revised PY - 2009/12/01/accepted PY - 2010/8/6/entrez PY - 2010/8/6/pubmed PY - 2010/8/24/medline SP - 732.e1-6; discussion 732-3 JF - American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics JO - Am J Orthod Dentofacial Orthop VL - 137 IS - 6 N2 - INTRODUCTION: The objectives of this study were to evaluate the prevalence of dental anomalies in patients with agenesis of maxillary lateral incisors and to compare the findings with the prevalence of these anomalies in the general population. METHODS: A sample of 126 patients, aged 7 to 35 years, with agenesis of at least 1 maxillary lateral incisor was selected. Panoramic and periapical radiographs and dental casts were used to analyze other associated dental anomalies, including agenesis of other permanent teeth, ectopia of unerupted permanent teeth, microdontia of maxillary lateral incisors, and supernumerary teeth. The occurrence of these anomalies was compared with prevalence data previously reported for the general population. Statistical testing was performed with the chi-square test (P <0.05) and the odds ratio. RESULTS: Patients with maxillary lateral incisor agenesis had a significantly increased prevalence rate of permanent tooth agenesis (18.2%), excluding the third molars. The occurrence of third-molar agenesis in a subgroup aged 14 years or older (n = 76) was 35.5%. The frequencies of maxillary second premolar agenesis (10.3%), mandibular second premolar agenesis (7.9%), microdontia of maxillary lateral incisors (38.8%), and distoangulation of mandibular second premolars (3.9%) were significantly increased in our sample compared with the general population. In a subgroup of patients aged 10 years or older (n = 115), the prevalence of palatally displaced canines was elevated (5.2%). The prevalences of mesioangulation of mandibular second molars and supernumerary teeth were not higher in the sample. CONCLUSIONS: Permanent tooth agenesis, maxillary lateral incisor microdontia, palatally displaced canines, and distoangulation of mandibular second premolars are frequently associated with maxillary lateral incisor agenesis, providing additional evidence of a genetic interrelationship in the causes of these dental anomalies. SN - 1097-6752 UR - https://www.unboundmedicine.com/medline/citation/20685523/Agenesis_of_maxillary_lateral_incisors_and_associated_dental_anomalies_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(10)00149-6 DB - PRIME DP - Unbound Medicine ER -