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A comparative study of cephalometric and arch width characteristics of Class II division 1 and division 2 malocclusions.
Eur J Orthod. 2006 Apr; 28(2):179-83.EJ

Abstract

The aim of this compound cephalometric and arch-width study was to determine any dental and/or skeletal differences between subjects with Class II division 1 and Class II division 2 malocclusions. The dento-skeletal characteristics of Class II subjects were evaluated using lateral cephalometric radiographs and dental casts of 90 untreated patients. The sample included 46 Class II division 1 patients (19 girls and 27 boys) with a mean age of 15.27 +/- 2.48 years, and 44 Class II division 2 patients (27 girls and 17 boys) with a mean age of 15.95 +/- 3.25 years. The intermolar, interpremolar and intercanine measurements were carried out on study models. The radiographs were digitized and processed using Dolphin Imaging software. In addition to standard descriptive statistical calculations, an independent samples t-test was carried out in order to compare the two groups. The non-parametric Mann-Whitney U test was utilized for the parameters for the data which were not normally distributed. The only statistically significant difference between the groups for the study model measurements was mandibular intercanine width. The cephalometric results revealed that SNB angle was responsible for the skeletal sagittal difference between the two groups. In addition, the Class II division 1 group had higher vertical proportions and the Class II division 2 group a more concave profile with a prominent chin. The sagittal skeletal pattern of Class II division 2 subjects was found to be very similar to the Class I skeletal relationship, with no evidence of any mandibular restriction.

Authors+Show Affiliations

Yeditepe University, Faculty of Dentistry, Department of Orthodontics, Istanbul, Turkey. drfulya@yeditepe.edu.trNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

16431898

Citation

Isik, Fulya, et al. "A Comparative Study of Cephalometric and Arch Width Characteristics of Class II Division 1 and Division 2 Malocclusions." European Journal of Orthodontics, vol. 28, no. 2, 2006, pp. 179-83.
Isik F, Nalbantgil D, Sayinsu K, et al. A comparative study of cephalometric and arch width characteristics of Class II division 1 and division 2 malocclusions. Eur J Orthod. 2006;28(2):179-83.
Isik, F., Nalbantgil, D., Sayinsu, K., & Arun, T. (2006). A comparative study of cephalometric and arch width characteristics of Class II division 1 and division 2 malocclusions. European Journal of Orthodontics, 28(2), 179-83.
Isik F, et al. A Comparative Study of Cephalometric and Arch Width Characteristics of Class II Division 1 and Division 2 Malocclusions. Eur J Orthod. 2006;28(2):179-83. PubMed PMID: 16431898.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A comparative study of cephalometric and arch width characteristics of Class II division 1 and division 2 malocclusions. AU - Isik,Fulya, AU - Nalbantgil,Didem, AU - Sayinsu,Korkmaz, AU - Arun,Tülin, Y1 - 2006/01/23/ PY - 2006/1/25/pubmed PY - 2006/5/26/medline PY - 2006/1/25/entrez SP - 179 EP - 83 JF - European journal of orthodontics JO - Eur J Orthod VL - 28 IS - 2 N2 - The aim of this compound cephalometric and arch-width study was to determine any dental and/or skeletal differences between subjects with Class II division 1 and Class II division 2 malocclusions. The dento-skeletal characteristics of Class II subjects were evaluated using lateral cephalometric radiographs and dental casts of 90 untreated patients. The sample included 46 Class II division 1 patients (19 girls and 27 boys) with a mean age of 15.27 +/- 2.48 years, and 44 Class II division 2 patients (27 girls and 17 boys) with a mean age of 15.95 +/- 3.25 years. The intermolar, interpremolar and intercanine measurements were carried out on study models. The radiographs were digitized and processed using Dolphin Imaging software. In addition to standard descriptive statistical calculations, an independent samples t-test was carried out in order to compare the two groups. The non-parametric Mann-Whitney U test was utilized for the parameters for the data which were not normally distributed. The only statistically significant difference between the groups for the study model measurements was mandibular intercanine width. The cephalometric results revealed that SNB angle was responsible for the skeletal sagittal difference between the two groups. In addition, the Class II division 1 group had higher vertical proportions and the Class II division 2 group a more concave profile with a prominent chin. The sagittal skeletal pattern of Class II division 2 subjects was found to be very similar to the Class I skeletal relationship, with no evidence of any mandibular restriction. SN - 0141-5387 UR - https://www.unboundmedicine.com/medline/citation/16431898/A_comparative_study_of_cephalometric_and_arch_width_characteristics_of_Class_II_division_1_and_division_2_malocclusions_ L2 - https://academic.oup.com/ejo/article-lookup/doi/10.1093/ejo/cji096 DB - PRIME DP - Unbound Medicine ER -