Almeida MR

Almeida-Pedrin RR

Araujo AM

Balters W

Basciftci FA

Bastos GK

Bigliazzi R

Björk A

Buschang PH

Cavalcante CT

Graber TM

Gu Y

Hultgren BW

Iseri H

Janson I

Kessner CA

Malta LA

Maltagliati LA

Martins RP

McNamara Jr JA

Melo ACM

Monini AC

Opheij DG

Reis SAB

Ruf S

Schulhof RJ

Wang MK

Dental Press Journal of Orthodontics

OBJECTIVE: The purpose of the study was to evaluate the influence of the skeletal maturation in the mandibular and dentoalveolar growth and development during the Class II, division 1, malocclusion correction with Balters bionator. METHODS: Three groups of children with Class II, division 1, malocclusion were evaluated. Two of them were treated for one year with the bionator of Balters appliance in different skeletal ages (Group 1: 6 children, 7 to 8 years old and Group 2: 10 children, 9 to 10 years old) and the other one was followed without treatment (Control Group: 7 children, 8 to 9 years old). Lateral 45 degree cephalometric radiographs were used for the evaluation of the mandibular growth and dentoalveolar development. Tantalum metallic implants were used as fixed and stable references for radiograph superimposition and data acquisition. Student's t test was used in the statistical analysis of the displacement of the points in the condyle, ramus, mandibular base and dental points. Analysis of variance one-fixed criteria was used to evaluate group differences (95% of level of significance). RESULTS: The intragroup evaluation showed that all groups present significant skeletal growth for all points analyzed (1.2 to 3.7 mm), but in an intergroup comparison, the increment of the mandibular growth in the condyle, ramus and mandibular base were not statically different. For the dentoalveolar modifications, the less mature children showed greater labial inclination of the lower incisors (1.86 mm) and the most mature children showed greater first permanent molar extrusion (4.8 mm).</jats:p

Paulo Roberto dos Santos-Pinto

Lídia Parsekian Martins

Ary dos Santos-Pinto

Luiz Gonzaga Gandini Júnior

Dirceu Barnabé Raveli

Cristiane Celli Matheus dos Santos-Pinto

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Mandibular growth and dentoalveolar development in the treatment of Class II, division 1, malocclusion using Balters Bionator according to the skeletal maturation

http://www.scielo.br/pdf/dpjo/v18n4/v18n4a08.pdf

Mandibular growth and dentoalveolar development in the treatment of Class II, division 1, malocclusion using Balters Bionator according to the skeletal maturation

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