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Dental arch dimensions in Class II division 1 malocclusions with mandibular deficiency.
Angle Orthod. 2008 May; 78(3):466-74.AO

Abstract

OBJECTIVE

To test the hypothesis that there is no difference in the dimensions of the upper and lower dental arches in Class II division 1 malocclusion with a mandibular deficiency compared to normal Class I occlusion dental arches.

MATERIALS AND METHODS

Photocopies of the dental arches of 48 patients exhibiting Class II division 1 malocclusion with mandibular deficiency and of 51 individuals with normal occlusion were compared. Mandibular deficiency was diagnosed clinically. All 99 individuals were in the permanent dentition. The ages of the subjects ranged from 11 years 4 months to 20 years (mean age = 12 years 5 months).

RESULTS

When compared to subjects with normal occlusion, the upper dental arches of the Class II division 1 patients presented reduced transverse dimensions and longer sagittal dimensions while the lower arches were less influenced.

CONCLUSION

The hypothesis is rejected. Significant differences are present between the dimensions of the upper and lower dental arches in Class II division 1 malocclusion (with a mandibular deficiency and in the permanent dentition) compared to normal Class I occlusion dental arches.

Authors+Show Affiliations

Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil. ortoface@travelnet.com.brNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18416613

Citation

da Silva Filho, Omar Gabriel, et al. "Dental Arch Dimensions in Class II Division 1 Malocclusions With Mandibular Deficiency." The Angle Orthodontist, vol. 78, no. 3, 2008, pp. 466-74.
da Silva Filho OG, Ferrari Júnior FM, Okada Ozawa T. Dental arch dimensions in Class II division 1 malocclusions with mandibular deficiency. Angle Orthod. 2008;78(3):466-74.
da Silva Filho, O. G., Ferrari Júnior, F. M., & Okada Ozawa, T. (2008). Dental arch dimensions in Class II division 1 malocclusions with mandibular deficiency. The Angle Orthodontist, 78(3), 466-74. https://doi.org/10.2319/022307-89.1
da Silva Filho OG, Ferrari Júnior FM, Okada Ozawa T. Dental Arch Dimensions in Class II Division 1 Malocclusions With Mandibular Deficiency. Angle Orthod. 2008;78(3):466-74. PubMed PMID: 18416613.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dental arch dimensions in Class II division 1 malocclusions with mandibular deficiency. AU - da Silva Filho,Omar Gabriel, AU - Ferrari Júnior,Flávio Mauro, AU - Okada Ozawa,Terumi, PY - 2007/02/01/received PY - 2007/07/01/accepted PY - 2008/4/18/pubmed PY - 2008/7/11/medline PY - 2008/4/18/entrez SP - 466 EP - 74 JF - The Angle orthodontist JO - Angle Orthod VL - 78 IS - 3 N2 - OBJECTIVE: To test the hypothesis that there is no difference in the dimensions of the upper and lower dental arches in Class II division 1 malocclusion with a mandibular deficiency compared to normal Class I occlusion dental arches. MATERIALS AND METHODS: Photocopies of the dental arches of 48 patients exhibiting Class II division 1 malocclusion with mandibular deficiency and of 51 individuals with normal occlusion were compared. Mandibular deficiency was diagnosed clinically. All 99 individuals were in the permanent dentition. The ages of the subjects ranged from 11 years 4 months to 20 years (mean age = 12 years 5 months). RESULTS: When compared to subjects with normal occlusion, the upper dental arches of the Class II division 1 patients presented reduced transverse dimensions and longer sagittal dimensions while the lower arches were less influenced. CONCLUSION: The hypothesis is rejected. Significant differences are present between the dimensions of the upper and lower dental arches in Class II division 1 malocclusion (with a mandibular deficiency and in the permanent dentition) compared to normal Class I occlusion dental arches. SN - 0003-3219 UR - https://www.unboundmedicine.com/medline/citation/18416613/Dental_arch_dimensions_in_Class_II_division_1_malocclusions_with_mandibular_deficiency_ L2 - https://meridian.allenpress.com/angle-orthodontist/article-lookup/doi/10.2319/022307-89.1 DB - PRIME DP - Unbound Medicine ER -