SUMMARY: Micro-implant stability has always been the focus of orthodontic clinical research.In the experiment, the morphological changes of bone tissue around the micro-implants in self-tapping and assisting implantation were investigated to explore the effect of different implantation on the osseointegr...
RESUMEN La disyunción maxilar rápida es un procedimiento ortopédico en el que se realizan una serie de activaciones diarias a un tornillo de expansión que actúa sobre la sutura palatina media y provoca la apertura de la misma en un breve período de tiempo, puede acompañarse de excesiva sintomatolo...
ABSTRACT Objective: The aim of his study was to evaluate the stress on tooth and alveolar bone caused by orthodontic intrusion forces in a supraerupted upper molar, by using a three-dimensional Finite Element Method (FEM). Methods: A superior maxillary segment was modeled in the software SolidWorks 2...
Fenómenos Biomecánicos,
Tornillos Óseos,
Modelos Dentales,
Análisis de Elementos Finitos,
Diente Molar/fisiología,
Métodos de Anclaje en Ortodoncia/efectos adversos,
Métodos de Anclaje en Ortodoncia/instrumentación,
Métodos de Anclaje en Ortodoncia/métodos,
Ligamento Periodontal,
Ápice del Diente,
Técnicas de Movimiento Dental/efectos adversos,
Técnicas de Movimiento Dental/instrumentación,
Técnicas de Movimiento Dental/métodos
ABSTRACT Objective: This study aimed at evaluating whether changes in the insertion angle is a determining factor in the positioning of the miniscrews body in a region with larger interradicular space in the posterior maxilla. Methods: Analysis of 60 posterior maxillary quadrants were made using imag...
Andrucioli, Marcela Cristina Damião;
Matsumoto, Mírian Aiko Nakane;
Saraiva, Maria Conceição Pereira;
Feres, Magda;
Figueiredo, Luciene Cristina de;
Sorgi, Carlos Artério;
Faccioli, Lucia Helena;
Silva, Raquel Assed Bezerra da;
Silva, Lea Assed Bezerra da;
Nelson-Filho, Paulo.
Abstract Objectives Using two groups of mini-implants (successful and failed) the objectives of this in vivo study were: to evaluate the microbial contamination by the checkerboard DNA-DNA hybridization technique and to quantify the bacterial endotoxin by the limulus amebocyte lysate assay. Material a...
ADN Bacteriano,
Implantes Dentales/microbiología,
Endotoxinas/análisis,
Bacterias Gramnegativas/aislamiento & purificación,
Prueba de Limulus/métodos,
Persona de Mediana Edad,
Hibridación de Ácido Nucleico/métodos,
Métodos de Anclaje en Ortodoncia/métodos,
Valores de Referencia,
Estadísticas no Paramétricas,
Resultado del Tratamiento
ABSTRACT Objective: The aim of the present study was to clarify the biomechanics of en-masse retraction of the upper anterior teeth and attempt to quantify the different forces and moments generated using mini-implants and to calculate the amount of applied force optimal for en-masse intrusion and retr...
ABSTRACT Objective: To define a map of interradicular spaces where miniscrew can be likely placed at a level covered by attached gingiva, and to assess if a correlation between crowding and availability of space exists. Methods: Panoramic radiographs and digital models of 40 patients were selected ac...
ABSTRACT Introduction: Due to the increasing use of miniplates for anchorage purposes in orthodontics, it is very important to know more about infrazigomatic crest anatomy (thickness), in adult patients. Objectives: Evaluate the infrazygomatic crest region thickness, in adult (male and female) patient...
ABSTRACT Objective: This study aimed at evaluating the design and dimensions of five different brands of orthodontic mini-implants, as well as their influence on torsional fracture strength. Methods: Fifty mini-implants were divided into five groups corresponding to different manufactures (DEN, RMO, C...
Brasil,
Implantes Dentales,
Análisis del Estrés Dental,
Análisis de Falla de Equipo,
Técnicas In Vitro,
Ensayo de Materiales,
Microscopía Electrónica de Rastreo,
Métodos de Anclaje en Ortodoncia/instrumentación,
Diseño de Aparato Ortodóncico,
Costillas,
Espectrometría por Rayos X,
Estrés Mecánico,
Propiedades de Superficie,
Porcinos,
Torque
ABSTRACT A bone is an anatomic structure in constant remodeling, with different, mutant and wonderfully inconstant designs. With every new and immediate functional demand, there are changes in cortical thickness, trabecular bone density and also in direction and size of trabeculae. Bones' non-stopping se...
Diente Premolar/diagnóstico por imagen,
Diente Premolar/cirugía,
Remodelación Ósea,
Maxilar/diagnóstico por imagen,
Maxilar/fisiología,
Tercer Molar/diagnóstico por imagen,
Tercer Molar/cirugía,
Métodos de Anclaje en Ortodoncia,
Ortodoncia/métodos,
Radiografía Dental,
Extracción Dental
