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Comparative study of dental arch width in plaster models, photocopies and digitized images
Rosseto, Maria Cristina; Palma, Fernanda Maria Cassinelli; Ferreira, Rívea Inês; Pinzan, Arnaldo; Vellini-Ferreira, Flávio.
Afiliação
  • Rosseto, Maria Cristina; University of São Paulo City. Department of Pediatric Dentistry and Orthodontics. São Paulo. BR
  • Palma, Fernanda Maria Cassinelli; University of São Paulo City. Department of Pediatric Dentistry and Orthodontics. São Paulo. BR
  • Ferreira, Rívea Inês; University of São Paulo City. Department of Pediatric Dentistry and Orthodontics. São Paulo. BR
  • Pinzan, Arnaldo; University of São Paulo. School of Dentistry of Bauru. Bauru. BR
  • Vellini-Ferreira, Flávio; University of São Paulo City. Department of Pediatric Dentistry and Orthodontics. São Paulo. BR
Braz. oral res ; 23(2): 190-195, 2009. graf, tab
Artigo em Inglês | LILACS | ID: lil-522301
Biblioteca responsável: BR1.1
ABSTRACT
The aim of this study was to comparatively assess dental arch width, in the canine and molar regions, by means of direct measurements from plaster models, photocopies and digitized images of the models. The sample consisted of 130 pairs of plaster models, photocopies and digitized images of the models of white patients (n = 65), both genders, with Class I and Class II Division 1 malocclusions, treated by standard Edgewise mechanics and extraction of the four first premolars. Maxillary and mandibular intercanine and intermolar widths were measured by a calibrated examiner, prior to and after orthodontic treatment, using the three modes of reproduction of the dental arches. Dispersion of the data relative to pre- and posttreatment intra-arch linear measurements (mm) was represented as box plots. The three measuring methods were compared by one-way ANOVA for repeated measurements (á = 0.05). Initial / final mean values varied as follows 33.94 to 34.29 mm / 34.49 to 34.66 mm (maxillary intercanine width); 26.23 to 26.26 mm / 26.77 to 26.84 mm (mandibular intercanine width); 49.55 to 49.66 mm / 47.28 to 47.45 mm (maxillary intermolar width) and 43.28 to 43.41 mm / 40.29 to 40.46 mm (mandibular intermolar width). There were no statistically significant differences between mean dental arch widths estimated by the three studied methods, prior to and after orthodontic treatment. It may be concluded that photocopies and digitized images of the plaster models provided reliable reproductions of the dental arches for obtaining transversal intra-arch measurements.
Assuntos

Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Processamento de Imagem Assistida por Computador / Processos de Cópia / Arco Dental / Modelos Dentários / Registro da Relação Maxilomandibular Tipo de estudo: Estudo prognóstico Limite: Adolescente / Criança / Feminino / Humanos / Masculino Idioma: Inglês Revista: Braz. oral res Assunto da revista: Odontologia Ano de publicação: 2009 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: University of São Paulo City/BR / University of São Paulo/BR
Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Processamento de Imagem Assistida por Computador / Processos de Cópia / Arco Dental / Modelos Dentários / Registro da Relação Maxilomandibular Tipo de estudo: Estudo prognóstico Limite: Adolescente / Criança / Feminino / Humanos / Masculino Idioma: Inglês Revista: Braz. oral res Assunto da revista: Odontologia Ano de publicação: 2009 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: University of São Paulo City/BR / University of São Paulo/BR
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