Comparison of tooth movement and biological response resulting from different force magnitudes combined with osteoperforation in rabbits
J. appl. oral sci
; J. appl. oral sci;29: e20200734, 2021. tab, graf
Article
en En
| LILACS
| ID: biblio-1180800
Biblioteca responsable:
BR1.1
ABSTRACT
Abstract Objective To compare tooth movement rate and histological responses with three different force magnitude designs under osteoperforation in rabbit models. Methodology 48 rabbits were divided into three groups Group A, Group B, and Group C, with traction force of 50 g, 100 g, 150 g, respectively. Osteoperforation was performed at the mesial of the right mandibular first premolar, the left side was not affected. One mini-screw was inserted into bones between two central incisors. Coil springs were fixed to the first premolars and the mini-screw. Tooth movement distance was calculated, and immunohistochemical staining of PCNA, OCN, VEGF, and TGF-β1 was analyzed. Results The tooth movement distance on the surgical side was larger than the control side in all groups (P<0.01). No significant intergroup difference was observed for the surgical side in tooth movement distance among the three groups (P>0.05). For the control side, tooth movement distance in Group A was significantly smaller than Groups B and C (P<0.001); no significant difference in tooth movement distance between Group B and Group C was observed (P>0.05). On the tension area of the moving premolar, labeling of PCNA, OCN, VEGF and TGF-β1 were confirmed in alveolar bone and periodontal ligament in all groups. PCNA, OCN, VEGF and TGF-β1 on the surgical side was larger than the control side in all groups (P<0.001). Conclusion Osteoperforation could accelerate orthodontic tooth movement rate in rabbits. Fast osteoperforation-assisted tooth movement in rabbits was achieve with light 50 g traction.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Ligamento Periodontal
/
Técnicas de Movimiento Dental
Límite:
Animals
Idioma:
En
Revista:
J Appl Oral Sci
/
J. appl. oral sci
/
J. appl. oral sci. (Online)
/
Journal of applied oral science (Impresso)
Asunto de la revista:
ODONTOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Brasil