Influence of premolar extractions on long-term adult facial aesthetics and apparent age

Autor(es)

Janson, Guilherme ^[1] ; Zingaretti Junqueira, Cintia Helena ^[1] ; Mendes, Lucas Marzullo ^[1] ; Garib, Daniela Gamba ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Bauru Dent Sch, Dept Orthodont, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN JOURNAL OF ORTHODONTICS; v. 38, n. 3, p. 272-280, JUN 1 2016.
• Citações Web of Science: 2
• Assunto(s): Tratamento ortodôntico Extração dentária Estética ortodôntica

Resumo

This study aimed to assess whether non-extraction, two-premolars and four-premolars extraction Class II treatment protocols are different regarding long-term facial aesthetics, age appearance, and soft-tissue measures. Frontal and lateral photographs of 63 full Class II division 1 patients, treated at least 8 years before, were evaluated by 83 laypeople and 76 orthodontists, who assigned to each one's attractiveness scores from 1 to 10, and opined about their apparent ages. Patients were divided in three groups: XP0 (non-extraction, n = 20; 30.77 years, 15.63 years post-treatment), XP2 (two-premolars extractions, n = 25; 30.99 years, 15.68 years post-treatment), and XP4 (four-premolar extractions, n = 18; 32.80 years, 18.01 years post-treatment), that were matched by gender, post-treatment occlusal and soft-tissue outcomes, age, and post-treatment time. Soft-tissue measures were obtained with Dolphin Imaging 11.5 software. Two-way analysis of variance revealed that attractiveness and apparent age were not affected by treatment protocols, but laypeople were slightly more critical then orthodontists. Analysis of variance showed more vertical facial pattern in XP4 group. Pearson correlation test revealed no influence of soft-tissue measures on sample's attractiveness. Treatment of full Class II division 1 malocclusion with and without extractions did not influence facial attractiveness, age appearance, and overall soft-tissue measures in the long-term. (AU)

• Processo FAPESP: 11/04605-9 - Influência das extrações dentárias na estética facial a longo prazo
• Beneficiário: Cintia Helena Zingaretti Junqueira
• Modalidade de apoio: Bolsas no Brasil - Mestrado