ABSTRACT Introduction: Orthodontic mini-implants (MI) are a reliable alternative to provide temporary orthodontic anchorage. Prior to miniscrew insertion, the best approach would be to evaluate each possible insertion site and measure the cortical bone thickness, and verify whether it would provide ade...
SUMMARY: This study was performed to identify optimal microimplant sites in the mandibular retromolar area by measurement and analysis of cortical bone thickness and density. Forty-nine records of cone-beam computed tomography were selected from 173 patients. Invivo 5.2 software was used to measure the t...
Abstract Aiming to evaluate cortical bone microarchitecture and osteonal morphology after irradiation, twelve male New Zealand rabbits were used. The animals were divided: control group (no radiation-NIr); and 3 irradiated groups, sacrificed after: 7 (Ir7d); 14 (Ir14d) and 21 (Ir21d) days. A single radia...
ABSTRACT Objective: The aim of this study was to evaluate the thickness of the zygomatic-maxillary cortical bone using computed tomography in different skeletal patterns. Methods: A total of 54 patients of both sexes, divided into three groups according to the vertical skeletal pattern, were evaluated...
ABSTRACT Introduction: Controversial reports suggest a relationship between growth pattern and cortical alveolar bone thickness, and its effect in the use of mini-implants. Objective: The main purpose of this study was to assess the influence of the growth pattern on the cortical alveolar bone thicknes...
La expansión modeladora de la geometría cortical de un hueso inducida por su entorno mecánico podría ser difícil de modificar por estímulos ulteriores con diferente direccionalidad. Este estudio, que por primera vez combina datos tomográficos del peroné (pQCT) y dinamométricos de la musculatura ...
Carrera/fisiología,
Densidad Ósea,
Deportes/fisiología,
Dinamómetro de Fuerza Muscular,
Ejercicio Físico/fisiología,
Fuerza Muscular/fisiología,
Fútbol/fisiología,
Fútbol Americano/fisiología,
Fracturas Óseas/prevención & control,
Hueso Cortical/diagnóstico por imagen,
Peroné/crecimiento & desarrollo,
Peroné/diagnóstico por imagen,
Pie/crecimiento & desarrollo,
Pie/diagnóstico por imagen,
Pie/fisiología,
Tomografía
Abstract Objective To quantify the bone volume that can be safely withdrawn from 3 donor sites: (1) the mandibular symphysis, (2) the oblique mandibular line and (3) the skullcap. Methodology For the symphysis, 200 tomographic exams were evaluated by the extension of the anterior loop of mental foram...
Puntos Anatómicos de Referencia,
Trasplante Óseo/métodos,
Tomografía Computarizada de Haz Cónico/métodos,
Hueso Cortical/diagnóstico por imagen,
Hueso Cortical/trasplante,
Mandíbula/diagnóstico por imagen,
Mandíbula/trasplante,
Ilustración Médica,
Estudios Retrospectivos,
Cráneo/diagnóstico por imagen,
Cráneo/trasplante,
Sitio Donante de Trasplante,
Sitio Donante de Trasplante/diagnóstico por imagen
Cone Beam Computed Tomography (CBCT) measurement of cortical bone thickness and implantation angle in the maxillary posterior region was used to provide reference for the safety of Micro-Implanted-Anchorage (MIA) implantation in skeletal class II malocclusion. Twenty samples of CBCT images were collected...
OBJECTIVE: To compare ultrasound propagation velocity with densitometry in the diaphyseal compact cortical bone of whole sheep metatarsals. METHODS: The transverse ultrasound velocity and bone mineral density of 5-cm-long diaphyseal bone segments were first measured. The bone segments were then divided ...
Técnica de Desmineralización de Huesos,
Densidad Ósea,
Hueso Cortical/diagnóstico por imagen,
Hueso Cortical/fisiopatología,
Densitometría,
Huesos Metatarsianos/diagnóstico por imagen,
Huesos Metatarsianos/fisiopatología,
Osteoporosis/diagnóstico por imagen,
Osteoporosis/fisiopatología,
Ovinos,
Factores de Tiempo,
Ultrasonografía/métodos
