RESUMO
BACKGROUND: The aim of this study was to evaluate the effects of long and short term systemic usage of royal jelly on bone formation in the expanded maxillary suture in a rat model. MATERIAL AND METHODS: Twenty eight Wistar albino rats were randomly divided into 4 equal groups: Control (C); Only Expansion (OE), Royal Jelly (RJ) group, Royal Jelly was given to rats by oral gavage only during the expansion and retention period; Royal Jelly plus Nursery (RJN) group, Royal Jelly was given to rats by oral gavage during their nursery phase of 40 days and during the retention period. After the 5 day expansion period was completed, the rats underwent 12 days of mechanical retention. All rats were sacrificed in same time. Histological examination was performed to determine the number of osteoclasts, number of osteoblasts, number of capillaries, inflammatory cell infiltration, and new bone formation. RESULTS: New bone formation, number of osteoclasts, number of osteoblasts, and the number of capillaries in the expanded maxillary sutures were higher in the RJ and RJN groups than in the other groups. Statistical analysis also demonstrated that new bone formation and the number of osteoblasts was also highest in the RJN group. CONCLUSIONS: The systemic administration of Royal Jelly in conjunction with rapid maxillary expansion may increase the quality of regenerated bone
Assuntos
Animais , Feminino , Masculino , Ratos , Maxila/patologia , Maxila , Osteogênese/fisiologia , Modelos Animais , Mel , Oclusão Dentária , Osteoclastos/fisiologia , Reabsorção Óssea , Fenômenos Fisiológicos DentáriosRESUMO
Introducción: El momento de aparición de un diente en la cavidad oral ha sido estudiado, a lo largo de los años, por diversos autores, por su relación con distintos factores (sistémicos y ambientales) y debido a su influencia en diversos ámbitos de la odontología. Material y método: Con el fin de analizar el patrón eruptivo de nuestra población decidimos realizar un estudio descriptivo de tipo transversal sobre las características de la erupción de la dentición permanente en 752 niños y adolescentes de la Comunidad de Madrid (España), de los que el 46,2% eran del sexo masculino y el 53,8% del femenino. Resultados: Observamos que los dientes permanentes emergen en la cavidad oral entre los 6,99 y los 12,45 años de edad en las niñas y entre los 7,06 y los 12,81 años de edad en los niños. En general, no encontramos diferencias estadísticamente significativas en cuanto al momento de emergencia entre dientes homólogos contra laterales. Observamos que los dientes de la arcada inferior erupcionan antes que los de la superior y que la erupción de la dentición permanente ocurre antes en las niñas que en los niños. Conclusiones: El orden de aparición de los dientes permanentes en ambos sexos fue: primer molar, incisivo central (en el lado derecho; en el izquierdo el incisivo central precede al primer molar), incisivolateral, primer premolar, segundo premolar, canino y segundo molar en la arcadasuperior. Y en la arcada inferior: incisivocentral, primer molar, incisivo lateral, canino, primer premolar, segundo premolar y segundo molar (..) (AU)
Introduction: The moment of appearance of a tooth in the oral cavity has been studied, over the years, by different authors, for its relation to different factors (systemic and environmental) and due to its influence on different areas of dentistry. Material and method: With the aim of analyzing the eruptive pattern of our population, we decided to carry out a descriptive transversal-type study on the characteristics of the eruption of permanent dentition in 752children and adolescents of the Community of Madrid (Spain), of which 46.2% were males and 53.8% were females. Results: We observe that the permanent teeth emerge in the oral cavity between 6.99and 12.45 years of age in the girls and between 7.06 and 12.81 years of age in the boys. In general, we did not find statistically significant differences as regards the moment of emergence of the (..) (AU)
