搜索结果: 1-15 共查到“口腔正畸学 Three-dimensional”相关记录25条 . 查询时间(0.218 秒)
A Photographic System for the Three-Dimensional Study of Facial Morphology
Face Soft tissue analysis Three-dimensional Photographs
2010/3/9
Objectives: To test whether digital photographs supported by three-dimensional (3D) software are suitable for measuring the facial soft tissues of healthy subjects as compared with data obtained by a ...
Reliability of Traditional Cephalometric Landmarks as Seen in Three-Dimensional Analysis in Maxillary Expansion Treatments
Cone-beam computerized tomography Landmark reliability Maxillary expansion
2010/3/9
Objective: To evaluate intra-examiner and inter-examiner reliability of 3D CBCT-generated landmarks previously used in traditional 2D cephalometry.
Materials and Methods: Twenty-four CBCTs NewTom 3G ...
Overjet at the Anterior and Posterior Segments: Three-Dimensional Analysis of Arch Coordination
Overjet Arch coordination Facial axis point Bracket slot center point
2010/3/5
Objectives: To compare the amounts of anatomical overjet measured from facial axis (FA) points with the amounts of bracket overjet measured from bracket slot center (BSC) points.
Materials and Meth...
A Novel Method for the Assessment of Three-Dimensional Tooth Movement during Orthodontic Treatment
Palatal rugae Superimposition Miniscrew Stability Dental cast Landmark
2010/3/5
Objective: To (1) evaluate the stability of palatal rugae as landmarks for superimposition of dental casts and (2) establish a three-dimensional superimposition method of maxillary dental casts for an...
Analysis Of Errors In Cephalometric Measurement Of Three-dimensional Distances On The Maxilla
Cephalometric Measurement Three-dimensional Distances Maxilla
2009/3/12
Analysis Of Errors In Cephalometric Measurement Of Three-dimensional Distances On The Maxilla.
Three-Dimensional Analysis of Changes in Location of Crowns and Root Apices of Maxillary Central Incisors
Three-Dimensional Analysis Root Apices Maxillary Central Incisors
2009/3/9
Three-Dimensional Analysis of Changes in Location of Crowns and Root Apices of Maxillary Central Incisors.
Three-dimensional Radiographic Evaluation of Condyle Poles in “Closed-lock” Syndrome
CONDYLE TEMPOROMANDIBULAR JOINT X-RAY
2009/2/26
A radiographic study of 39 cases of “closed-lock” syndrome using three radiographic projections, finding approximately equal involvement of medial and lateral poles in long-standing cases.
Reliability of a three-dimensional method for measuring facial animation：A case report
Facial animation Three-dimensional Reliability
2009/1/9
Reliable methods of quantifying functional impairment of the craniofacial region are sorely lacking. The purpose of this study was to test the reliability of a three-dimensional method for...
A comparison of three-dimensional and two-dimensional analyses of facial motion
Facial motion Three-dimensional Two-dimensional
2009/1/9
The purpose of this study was to compare the amplitude of facial motion obtained using three-dimensional (3-D) and two-dimensional (2-D) methods. The amplitude of motion of fifteen facial landmarks ...
Three-dimensional facial analysis using a video imaging system
Imaging systems Three-dimensional facial analysis Soft-tissue analysis Facial balance
2009/1/9
The purpose of this article was twofold: (1) to provide an estimate of error in the digitization of various soft tissue landmarks using a video imaging system, and (2) to evaluate the relationships ...
A technique for three-dimensional cephalometric analysis as an aid in evaluating changes in the craniofacial skeleton
Three-dimensional cephalometrics Craniofacial skeleton Cephalometric analysis
2009/1/7
A technique is presented for creating a standardized view for use in three-dimensional cephalometry. Three-dimensional cephalometric analysis has become a valuable tool in the assessment of skelet...
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...
Optimization of Unilateral Overjet Management: Three-Dimensional Analysis by the Finite Element Method
Class II Subdivision treatment Midline correction Asymmetric overjet Finite element method
2008/12/26
The main goal of this research was to introduce, evaluate, and mathematically optimize the treatment procedure of unilateral overjet cases. Patients with Class II subdivision malocclusions usually r...
Three-Dimensional Cephalometry Using Helical Computer Tomography：Measurement Error Caused by Head Inclination
Helical CT Three-dimensional cephalometry Head position
2008/12/26
We performed a study of three-dimensional (3-D) linear measurements in the maxillofacial region using helical computer tomography (CT). The high accuracy of the linear measurements showed errors of ...
Personal Computer-Based Three-Dimensional Computed Tomographic Images of the Teeth for Evaluating Supernumerary or Ectopically Impacted Teeth
3D CT Diagnostic imaging Image processing Computer-assisted imaging
2008/12/19
This study describes the use of personal computer (PC)–based three-dimensional computed tomographic (3D CT) images in the evaluation of supernumerary and ectopically impacted teeth. Three selected...