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Comparative study of time of treatment in pacients with and without crowding in cases of malloclussion class II treated with extractions of four premolars.

Grant number: 11/16495-3
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): March 01, 2012
Effective date (End): February 28, 2013
Field of knowledge:Health Sciences - Dentistry - Orthodontics
Principal Investigator:Guilherme dos Reis Pereira Janson
Grantee:Lucas Nunes Bastos Curty Silva
Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil


Introduction: One of the most questions cited to the patients is about the time of orthodontic treatment. There are some factors which are involved. The extraction is a procedure used to help orthodontists, so it can be used when there is sever crowding or in order to correct dental or cephalometric discrepancy. Objective: To compare the time of orthodontic treatment in patients treated with extractions of four premolars. Initially, they presented malocclusion Class II with and without crowding. Material and methods: The sample of this study will be selected by initial models and papers of patients treated at Faculty of Odontology of Bauru, at Orthodontic Department. The sample has to be composited by: permanents teeth including first molars; malocclusion Class II; and maximum three absents during treatment. If the data present normal distribution, t test will be used. If the data present no normal distribution, Mann- Whitney test will be used.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
JANSON, GUILHERME; BASTOS CURTY SILVA, LUCAS NUNES; VALERIO, MARCELO VINICIUS; LARANJEIRA, VINICIUS; NIEDERBERGER, ANA; GARIB, DANIELA. Treatment Time of Class II Malocclusion, with and without Mandibular Crowding, Treated with Four Premolar Extractions: A Retrospective Study. TURKISH JOURNAL OF ORTHODONTICS, v. 34, n. 2, p. 122-126, . (11/16495-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SILVA, Lucas Nunes Bastos Curty. Comparative study of treatment times in patients with and without crowding in Class II malocclusion cases treated with extractions of four premolars. 2013. Master's Dissertation - Universidade de São Paulo (USP). Faculdade de Odontologia de Bauru (FOB/SDB) Bauru.

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