Document Detail


Class II malocclusion division 1: a new classification method by cephalometric analysis.
MedLine Citation:
PMID:  22971255     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
AIM: The purpose of this study was to analyse the craniofacial and dentofacial skeletal characteristics in untreated subjects with Class II, division 1 malocclusion by mandibular retrusion and to identify different types and their prevalence.
MATERIALS AND METHODS: In 152 subjects with Class II, division 1 malocclusion by mandibular retrusion, the differences were determined by lateral cephalograms analysis of variance and chi-square test, respectively. P<0.05 was considered significant. Seven types of mandibular retrusion were identified: three pure, dimensional, rotational and positional, and four mixed.
RESULTS: All patients showed significant inter-group differences with P between 0.005 and 0.001. The dimensional type was the most common (28.9%) and the rotational-positional type was the rarest (5.9%). The pure dimensional type had the shortest mandibular body; the pure rotational type had larger SN/GoMe and the lowest AOBO; the pure positional type presented the flattest cranial base, high AOBO. In the mixed types, dento-skeletal features changed depending on how the main types assorted.
CONCLUSIONS: Identifying the type of mandibular retrusion is important for differential diagnosis in clinical practice and research.
Authors:
L Perillo; G Padricelli; G Isola; F Femiano; P Chiodini; G Matarese
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry     Volume:  13     ISSN:  1591-996X     ISO Abbreviation:  Eur J Paediatr Dent     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101121881     Medline TA:  Eur J Paediatr Dent     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  192-6     Citation Subset:  D; IM    
Affiliation:
Department of Dentistry, Orthodontics and Surgery, Second University of Naples, Italy.
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