Nobuyoshi Motohashi

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The purpose of this article is to describe a newly developed 3D computer-aided design (CAD) system for the diagnostic set-up of casts in orthodontic diagnosis and treatment planning, and its preliminary clinical applications. The system comprises a measuring unit which obtains 3D information from the dental model using laser scanning, and a personal(More)
The purpose of this article is to introduce the outline of our newly developed three-dimensional dental cast analyzing system with laser scanning, and its preliminary clinical applications. The system is composed of a measuring device with a slit-ray laser projector and two sets of coupled charged devised video cameras, an image processing unit, a 16-bit(More)
P-A cephalometric analysis was performed on the craniofacial morphology in 88 Brazilian men with nonoperated and operated cleft lip and palate. For the comparative study, these subjects were divided into the following four groups: (1) 31 nonoperated unilateral cleft lip and palate (UCLP), (2) 24 nonoperated bilateral cleft lip and palate (BCLP), (3) 16(More)
The purpose of this study was to evaluate changes in the hard and soft tissues and to test a preliminary method for predicting the soft tissue profile changes in 14 Japanese retrognathic patients who underwent surgical mandibular advancement. A pair of pre- and postoperative lateral cephalograms was taken for each subject. A paired t test identified(More)
The recognition and elimination of dental compensation is essential in presurgical orthodontic treatment to achieve successful stabilization of the occlusion after surgery. However, the relationship between a transverse dental anomaly and skeletal asymmetry is not fully understood. To evaluate this relationship, frontal cephalometric and 3-dimensional(More)
OBJECTIVE Oculo-facio-cardio-dental (OFCD) syndrome is a very rare condition that requires comprehensive dental management because of associated multiple dental anomalies such as canine radiculomegaly, delayed dentition, oligodontia, persistent primary teeth, microdontia, and macrodontia. This report presents a case of OFCD in a Japanese girl (13 years 1(More)
OBJECTIVE The purpose of this study was to observe tooth eruption pattern into the newly generated bone induced by recombinant human bone morphogenetic protein-2 (rhBMP-2). METHOD Three 12-week-old beagle dogs were used. Following wound healing of the extracted maxillary third deciduous incisor at the age of 13 weeks, a resection of maxillary alveolar(More)
The collapsed maxillary alveolar arch in bilateral cleft lip and palate (BCLP) patients was quantitatively evaluated by three dimensional analysis. Materials were consisted of alveolar models taken from 15 Japanese boys (11 years old) with BCLP. The findings obtained were as follows: 1. Examination of the alveolar displacement in individual BCLP patients(More)
OBJECTIVE In this study, we analyzed the craniofacial and dentoalveolar morphologies of three pairs of monozygotic twins discordant for cleft lip and/or palate (CL/P) in order to evaluate the effects of environmental factors on growth and development. DESIGN Craniofacial and dentoalveolar morphologies revealed by analyses of cephalograms and dental casts(More)