Macroscopic and radiographic aspects of orthodontic movement associated with corticotomy: animal study

Author(s)

Zuppardo, Marcelo Lelis ^[1] ; Ferreira, Camila Lopes ^[1] ; de Moura, Nicole Berton ^[1] ; Longo, Mariellen ^[1] ; Santamaria, Jr., Milton ^{[2, 3]} ; Pereira Castro Lopes, Sergio Lucio ^[1] ; Santamaria, Mauro Pedrine ^[1] ; Neves Jardini, Maria Aparecida ^[1]

Affiliation

^[1] Sao Paulo State Univ UNESP, Sch Sci & Technol, Dept Diag & Surg, Eng Francisco Jose Longo Ave 777, BR-12245000 Sao Jose Dos Campos, SP - Brazil

^[2] Heminio Ometto Univ Ctr, UNIARARAS, Grad Program Orthodont, Araras - Brazil

^[3] Heminio Ometto Univ Ctr, UNIARARAS, Grad Program Biomed Sci, Araras - Brazil

• Document type: Journal article
• Source: ORAL AND MAXILLOFACIAL SURGERY-HEIDELBERG; v. 23, n. 1, p. 77-82, MAR 2019.
• Web of Science Citations: 0

Abstract

IntroductionTo quantify the rate of tooth movement in two corticotomy protocols in an experimental model in rats through macroscopic and radiographic analysis.MethodsThe animals were divided into three groups: orthodontic movement (CO), orthodontic movement plus corticotomy surgery (G2), and orthodontic movement and corticotomy surgery with decorticalization (G3).The euthanasia occurred in 7 and 14days. The data were statistically analyzed (p<0.05).ResultsThe CO presented lower distance between the mesial surface of the first molar and the distal surface of the third molar when compared to the G2 (6.960.24, p=0.009) and G3 (6.93 +/- 0.18, p=0.016) in the macroscopic analysis. In the 7days, there was no statistically significant radiographic difference between the three groups: CO(0.94 +/- 0.21mm(2)), G2(1.05 +/- 0,27mm(2)), and G3(1.08 +/- 0.27mm(2)).There was a statistically significant difference between CO (0.87 +/- 0.12mm(2)), G2 (1.00 +/- 0.12mm(2)), and G3 (1.11 +/- 0.14mm(2)) at 14days. There was a statistically significant linear difference between the groups in all periods.Conclusion Tooth movement and the region of interest were influenced by corticotomy, regardless of the surgical technique in the 14days. (AU)

• FAPESP's process: 16/17141-4 - Radiographic aspects of orthodontic movement of molars submitted to corticotomy: studies in animals
• Grantee: Nicole Berton de Moura
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 15/26523-5 - Corticotomy effect on orthodontic tooth movement. Histomorphometric and immunohistochemical study in rats.
• Grantee: Maria Aparecida Neves Jardini
• Support Opportunities: Regular Research Grants