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Effects of the Taper Shape,Dual-Thread,and Length on the Mechanical Properties of Mini-Implants
Mini-implant Shape Dual-thread Mechanical Torque
2010/3/5
Objective: To analyze the mechanical effects of the length and the various shapes such as cylindrical shape, taper shape, and dual-thread shape on the insertion and removal torque of mini-implants.
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Genetic Factors in the Shape of the Craniofacial Complex
Genetic Factors Craniofacial Complex
2009/3/9
Genetic Factors in the Shape of the Craniofacial Complex.
Genetic and Environmental Influences on the Shape of the Adult Dog Skull
Genetic and Environmental Influences Adult Dog Skull
2009/3/9
Taken in part from a doctoral thesis, Department of Anatomy, Queen's University, Belfast, Northern Ireland. Supported by a research grant from the Northern Ireland Hospitals' authority. Presently ...
Shape of the craniofacial complex in patients with Klinefelter syndrome
Craniofacial dimensions Klinefelter syndrome Sex chromosomes
2009/1/12
The shape and size of the craniofacial complex in 35 adults with Klinefelter syndrome (47,XXY) were analyzed cephalometrically and compared with 60 control males. Twenty-four angular and 18 linear...
Clinicians have long suspected that tongue shape differs between obstructive sleep apnea (OSA) patients and normal subjects. The purpose of this study was to determine whether such differences exist...
Maxillary Arch Size and Shape in American Blacks and Whites
Arch size Arch form Ethnic differences Sex differences
2008/12/26
American blacks have larger teeth than whites, but they less frequently exhibit crowding—apparently because of larger arch dimensions. This study quantified differences in arch size and shape in t...
Assessment of Root Resorption and Root Shape：Periapical vs Panoramic Films
Radiographic examination Diagnosis and treatment planning Risk factors Root resorption
2008/12/26
A radiographic examination is an essential part of the diagnostic process in orthodontics. However, what radiographs are needed to properly evaluate root shape and position? Most clinicians order ...
Three Dimensional Analysis of Facial Movement in Normal Adults：Influence of Sex and Facial Shape
Three-dimension Facial movement Sex difference Facial shape
2008/12/26
The aim of this study was to quantify facial movements in a sample of normal adults and to investigate the influence of sex and facial shape on these movements. The study sample consisted of 50 he...
Crown-Root Shape of the Permanent Maxillary Central Incisor
Incisor shape Malocclusion Cephalometry Morphometry
2008/12/23
This study aimed to determine whether the lateral cephalometric crown-root shape differs among the permanent maxillary central incisor in Class I, Class II division 1, Class II division 2 and Clas...
Anchorage Effect of Various Shape Palatal Osseointegrated Implants: A Finite Element Study
Implant Anchorage Finite element analysis
2008/11/27
The purpose of this study was to compare the anchorage effects of different palatal osseointegrated implants using a finite element analysis. Three types of cylinder implants (simple implant, step i...
Obstructive Sleep Apnea Patients with the Oral Appliance Experience Pharyngeal Size and Shape Changes in Three Dimensions
OSA Cine-CT
2008/11/26
Pharyngeal size and shape differences between pre- and posttrials of a mandible-protruding oral appliance were investigated using cine computerized tomography (CT). Fourteen patients diagnosed with ...
Orthodontic Buccal Tooth Movement by Nickel-Free Titanium-Based Shape Memory and Superelastic Alloy Wire
Nickel-free shape memory and superelastic alloy Mechanical properties Tooth movement Light continuous force Rat
2008/11/24
Objective: To examine the mechanical properties and the usefulness of titanium-niobium-aluminum (Ti-Nb-Al) wire in orthodontic tooth movement as compared with nickel-titanium (Ni-Ti) wire.Material...
Palatal Size and Shape in 6-Year Olds Affected by Hypohidrotic Ectodermal Dysplasia
Morphometry Hypohidrotic ectodermal dysplasia Palate
2008/11/24
Objective: To analyze the size and shape of the hard tissue palate of Italian subjects with hypohidrotic ectodermal dysplasia (HED).Materials and Methods: The morphology and the dimensions of the ...
Insertion Torque of Orthodontic Miniscrews According to Changes in Shape, Diameter and Length
Miniscrew Insertion torque Diameter Length
2008/10/29
Objective: To determine the variation in the insertion torque of orthodontic miniscrews according to the screw length, diameter, and shape.Materials and Methods: The maximum insertion torque (MIT) was...