Hiroshi Hirayama

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The purpose of this study was to evaluate the effect of changing mandibular position on body posture and reciprocally, body posture on mandibular position. Forty-five (45) asymptomatic subjects (24 males and 21 females, ages 21-53 years, mean age 30.7 years) were included in this study and randomly assigned to one of two groups, based on the table of random(More)
In recent years, an increased effort to design, build, and operate small satellites has taken place in universities and laboratories all over the world. These micro-satellites (or nano-satellites) provide numerous flight opportunities for science experiments at a fraction of the cost of larger traditional missions. In addition, there has been an increasing(More)
We describe herein a surgically treated case of Lhermitte-Duclos disease in a 33-year-old man. The clinical presentation seemed typical in terms of symptoms, neurological signs, and neuroimaging. High and heterogenous fluorodeoxyglucose uptake in positron emission tomography study is presented and discussed. Furthermore, we performed volumetric analysis of(More)
This article discusses the connection of teeth to implants, in order to restore partial edentulism. The main problem arising from this connection is tooth intrusion, which can occur in up to 7.3% of the cases. The justification of this complication is being attempted through the perspective of biomechanics of the involved anatomical structures, that is, the(More)
PURPOSE The posterior palatal seal contributes to the retention of the complete denture. Distortion of this area can occur during reline procedures. The purpose of this study was to evaluate the dimensional accuracy of various denture relining methods and materials on the maxillary posterior palatal seal area. MATERIALS AND METHODS A stainless steel cast(More)