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Patterns of third-molar agenesis in an orthodontic patient population with different skeletal malocclusions.
Angle Orthod. 2012 Jan; 82(1):165-9.AO

Abstract

OBJECTIVE

To examine the relationship between third-molar agenesis and different skeletal malocclusion patterns.

MATERIALS AND METHODS

Pretreatment records of 1046 orthodontic patients (aged 13-17 years; mean age, 14.07 ± 1.27) were used. Third-molar agenesis was calculated with respect to genders, number of missing teeth, jaws, and skeletal malocclusion patterns. The Pearson chi-square test was performed to determine potential differences.

RESULTS

Among the 1046 subjects, 237 subjects were diagnosed with third-molar agenesis (22.7%) with no statistical gender difference (P > .05). It was more common in the maxilla than in the mandible or in both jaws (P < .01). The prevalence of patients with a third-molar agenesis was the most commonly found type (P < .001). The prevalence of third-molar agenesis in those with a Class III malocclusion was significantly higher than in those with Class I or Class II (P < .05). However, there was similar prevalence among the hyper-divergent (24.5%), normal (23.8%), and hypo-divergent (19.2%) groups (P > .05).

CONCLUSION

These results suggest that agenesis of the third molar does not depend on vertical patterns of the skeletal malocclusions, but does depend on sagittal skeletal malocclusions in this orthodontic patient population.

Authors+Show Affiliations

Department of Orthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey. mevlutcelikoglu@hotmail.comNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study

Language

eng

PubMed ID

21815812

Citation

Celikoglu, Mevlut, and Hasan Kamak. "Patterns of Third-molar Agenesis in an Orthodontic Patient Population With Different Skeletal Malocclusions." The Angle Orthodontist, vol. 82, no. 1, 2012, pp. 165-9.
Celikoglu M, Kamak H. Patterns of third-molar agenesis in an orthodontic patient population with different skeletal malocclusions. Angle Orthod. 2012;82(1):165-9.
Celikoglu, M., & Kamak, H. (2012). Patterns of third-molar agenesis in an orthodontic patient population with different skeletal malocclusions. The Angle Orthodontist, 82(1), 165-9. https://doi.org/10.2319/041911-274.1
Celikoglu M, Kamak H. Patterns of Third-molar Agenesis in an Orthodontic Patient Population With Different Skeletal Malocclusions. Angle Orthod. 2012;82(1):165-9. PubMed PMID: 21815812.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Patterns of third-molar agenesis in an orthodontic patient population with different skeletal malocclusions. AU - Celikoglu,Mevlut, AU - Kamak,Hasan, Y1 - 2011/08/04/ PY - 2011/8/6/entrez PY - 2011/8/6/pubmed PY - 2012/4/21/medline SP - 165 EP - 9 JF - The Angle orthodontist JO - Angle Orthod VL - 82 IS - 1 N2 - OBJECTIVE: To examine the relationship between third-molar agenesis and different skeletal malocclusion patterns. MATERIALS AND METHODS: Pretreatment records of 1046 orthodontic patients (aged 13-17 years; mean age, 14.07 ± 1.27) were used. Third-molar agenesis was calculated with respect to genders, number of missing teeth, jaws, and skeletal malocclusion patterns. The Pearson chi-square test was performed to determine potential differences. RESULTS: Among the 1046 subjects, 237 subjects were diagnosed with third-molar agenesis (22.7%) with no statistical gender difference (P > .05). It was more common in the maxilla than in the mandible or in both jaws (P < .01). The prevalence of patients with a third-molar agenesis was the most commonly found type (P < .001). The prevalence of third-molar agenesis in those with a Class III malocclusion was significantly higher than in those with Class I or Class II (P < .05). However, there was similar prevalence among the hyper-divergent (24.5%), normal (23.8%), and hypo-divergent (19.2%) groups (P > .05). CONCLUSION: These results suggest that agenesis of the third molar does not depend on vertical patterns of the skeletal malocclusions, but does depend on sagittal skeletal malocclusions in this orthodontic patient population. SN - 1945-7103 UR - https://www.unboundmedicine.com/medline/citation/21815812/Patterns_of_third_molar_agenesis_in_an_orthodontic_patient_population_with_different_skeletal_malocclusions_ L2 - http://www.angle.org/doi/10.2319/041911-274.1?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -