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Infrared Light-Emitting Diode (LED) Effects on Orthodontic Tooth Movement.
Friedrichsdorf, Simone Peixe; Chavez, Victor Elias Arana; Bradaschia-Correa, Vivian; Cattaneo, Paolo Maria; Dominguez, Gladys Cristina.
Afiliação
  • Friedrichsdorf SP; Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil.
  • Chavez VEA; Department of Biomaterials and Oral Biology, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil.
  • Bradaschia-Correa V; Department of Biomaterials and Oral Biology, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil.
  • Cattaneo PM; Department of Dentistry, Faculty of Health, Aarhus University, Aarhus,Denmark.
  • Dominguez GC; Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil.
Braz Dent J ; 30(4): 410-416, 2019 Jul 22.
Article em En | MEDLINE | ID: mdl-31340233
The present study aimed to analyze the effect of LED phototherapy on the presence of hyalinization and root resorption during orthodontic tooth movement (OTM) in rats and to measure the amount of tooth movement. Eighty rats were allocated into two groups: LED and control (CON), where the LED rats were irradiated with infrared LED (850 nm, 30 mW) for 5 min during the first five days of OTM and where controls were not irradiated. Both groups were subdivided into four subgroups (n=10) according to the date of euthanasia (4, 7, 14 and 21 days). Five out of ten LED21 and five of ten CON21 rats were submitted to micro-computed tomography (µCT); µCT scans were taken on days 0, 7, 14 and 21. For histological study, maxillae were processed to light microscopy using Hematoxylin-Eosin (HE) and Tartrate-Resistant Acid Phosphatase (TRAP) histochemistry. The amount of tooth movement did not differ between LED and CON. Hyalinization was observed at the pressure areas in both groups, and it did not show a statistically significant difference between the groups. Root resorption was also observed in both groups after 7 days and it did not represent any differences between the two groups. LED phototherapy was not able to increase the amount of OTM. Similar characteristics of hyalinization and root resorption were observed in both groups.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reabsorção da Raiz / Técnicas de Movimentação Dentária Limite: Animals Idioma: En Revista: Braz Dent J Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reabsorção da Raiz / Técnicas de Movimentação Dentária Limite: Animals Idioma: En Revista: Braz Dent J Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil