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Anterior open bite treatment with bonded spurs associated with build-ups versus conventional bonded spurs: a randomized clinical trial

Grant number: 18/05238-9
Support type:Regular Research Grants
Duration: December 01, 2018 - November 30, 2020
Field of knowledge:Health Sciences - Dentistry - Orthodontics
Principal researcher:Guilherme dos Reis Pereira Janson
Grantee:Guilherme dos Reis Pereira Janson
Home Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil
Assoc. researchers:Daniela Gamba Garib Carreira


Introduction: Anterior open bite is commonly related with lower anterior face height increase. Therefore, some early treatment protocols use appliances that allow vertical dentoalveolar development of the anterior teeth without interferences (control of deleterious habits) associated to appliances that produce control of the vertical dimension. Recently, the efficiency and stability of anterior open bite treatment with resin blocks bonded to the posterior teeth (build-ups) associated with fixed orthodontic appliances was described. Objective: To compare the dentoalveolar and skeletal effects of bonded spurs associated with build-ups versus conventional bonded spurs in the early treatment of anterior open bite patients. Material and Methods: Sixty patients between 7 and 11 years old diagnosed with Angle Class I malocclusion and anterior open bite will be prospective and randomly allocated in one of the two study´s group. The experimental group will consist of 30 patients treated with bonded spurs associated with build-ups. Control group will consist of 30 patients treated with conventional bonded spurs. Lateral headfilms and digital dental casts will be obtain at the beginning (T1) and after open bite correction or until 20 months after treatment (T2). Dentoalveolar and skeletal variables will be evaluated from the lateral headfilms in the Dolphin® software. Dental casts will be analyzed with the Orthoanalyzer® software to evaluate dentoalveolar anterior vertical development, posterior teeth inclinations and maxillary arch dimensions. After verifying the normal distribution, intergroup comparisons will be performed with t test and intragroup comparisons with dependent t test (P<0.05). (AU)

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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)
ALIAGA-DEL CASTILLO, ARON; VILANOVA, LORENA; MIRANDA, FELICIA; ARRIOLA-GUILLEN, LUIS ERNESTO; GARIB, DANIELA; JANSON, GUILHERME. Dentoskeletal changes in open bite treatment using spurs and posterior build-ups: A randomized clinical trial. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, v. 159, n. 1, p. 10-20, JAN 2021. Web of Science Citations: 0.

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