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Renato Rodrigues de Almeida
Renato Rodrigues de Almeida
Londrina
Brazil
Publications
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Research Article
A Prospective Clinical Trial of Arch Width Changes Evaluated through Dental Casts in Consecutively Treated Non-extraction and Extraction Cases
Author(s): Marcio Rodrigues de Almeida*,Renata Rodrigues de Almeida-Pedrin,Renato Rodrigues de Almeida,Carlos Flores-Mir Marcio Rodrigues de Almeida*,Renata Rodrigues de Almeida-Pedrin,Renato Rodrigues de Almeida,Carlos Flores-Mir
Objective: To compare the dental arch width changes in consecutively treated extraction and non-extraction Class I patients. Materials and methods: Anterior and posterior arch widths of the maxillary and mandibular arches of 21 patients treated by 4 first-premolar extraction and 20 patients treated without extractions were measured on study models using a digital caliper.The initial mean ages were 13.4 ± 1.02 years for the extraction group and 13.1 ± 1.7 years for the non-extraction group. Mean treatment time was 2.7 ± 0.6 years for the extraction group and 2.4 ± 1.0 years for the non-extraction group. The maxillary and mandibular crowding were −5.2 ± 2.8 and −5.9 ± 3.1 mm for the extraction group and −4.1 ± 2.7 and −3.3 ± 2.5 mm fo.. View More»
DOI: 10.4172/2161-1122.1000108