This retrospective investigation was designed to assess the effects of extraction treatment on the sagittal dimensions of the maxillary and mandibular skeletal structures of growing patients. The records of 40 patients (17 girls, 23 boys; median age 10 years 11 months) whose orthodontic treatment involved extraction of four premolars were evaluated and compared with a control group of 100 patie...

To determine the frequency of apical and cervical curvatures in human molars using the radius method and cone-beam computed tomography (CBCT) images. Four hundred images of mandibular and maxillary first and second molars were selected from a database of CBCT exams. The radius of curvature of curved root canals was measured using a circumcenter based on three mathematical points. Radii were cla...

Introduction Automated scan plane planning is expected to provide consistent scan plane prescriptions and to improve MRI scanner usability. Consistent scan planes are useful for follow-up examinations. The typical workflow of a scan plane setup requires careful manual positioning, and it suffers from inter-operator variability. Furthermore, having to perform a scan plane setup for each examinat...

This study was a retrospective radiographic study involving analysis of computed tomography scans obtained for patients with degenerative spondylolisthesis of the L4-L5 segment and a control group. The purpose of the study was to identify radiological predisposing factors for degenerative spondylolisthesis of the L4-L5 segment. The authors reviewed all computed tomography scans (N=3370) perform...

Musculoskeletal disorders (MSD) are a highly prevalent work-related health problem. Biomechanical exposure to hazardous postures during work is risk factor for the development of MSD. This study focused on developing an inertial sensor-based approach evaluate posture in industrial contexts, particularly automotive assembly lines. The analysis was divided into two stages: 1) comparative joint an...

[Purpose] The purpose of this study was to examine the characteristics standing posture with turnout in children. [Participants and Methods] Ten female preschool children thirteen skilled adult ballet dancers participated study. postures parallel sagittal plane were photographed, angle, ear-neck horizontal distance from vertical line anatomical measurement point measured. [Results] Compared dan...

Ligament geometry is crucial to surgical treatment success in anterior cruciate ligament (ACL) injury. This study aimed to optimize the MRI technique to elucidate the geometry of the patellar ligament (PL) and ACL in vivo. A 1.5-T superconducting MRI system with a special surface coil and fast spin echo was used to acquire high-resolution T1-weighted images (H-T1WI) of the ACL. The sagittal pla...

BACKGROUND Pseudoneglect is a normal left sided spatial bias observed with attempted bisections of horizontal lines and a normal upward bias observed with attempted bisections of vertical lines. Horizontal pseudoneglect has been attributed to right hemispheric dominance for the allocation of attention. The goal of this study was to test the hypothesis that the upward bias in vertical line bisec...

Objectives Spinal sagittal alignment has been reported that it is highly associated with health related QOL in adult spinal deformity patients. Optimal sagittal alignment is critical for the efficient function of the musculoskeletal system. In Japan as aging country, a number of elderly people with spinal deformity seems to be increasing. In general, sagittal alignment of elderly people is more...