Yoshiyuki Kakehashi

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OBJECTIVE To evaluate the influence of firing procedures on the marginal distortion of electroformed metal-ceramic crown restorations. METHOD AND MATERIALS Twenty-four standardized specimens were fabricated using a gold-electroforming system and were characterized by 3 finish line forms: shoulder (S-type), rounded shoulder (RS-type), and deep chamfer(More)
1. The state of inclination and the change under various conditions of the imaginary axis of the tooth crown of upper jaw anterior teeth can be determined by the image measuring system and method of this study. 2. The measurement error of this system was not more than 0.3 degree. This value was sufficient for the purpose of this study. 3. The imaginary axis(More)
The state of inclination and the change under various conditions of the imaginary axis of the tooth crown of upper jaw and lower jaw right and left first molar can be determined by the measuring apparatus and method of this study. 2. The measurement error of this method was not more than 0.1 degree. This value was sufficient for the purpose of this study.
With a view to research the effect of the crown form, we made the unanatomical artificial teeth and some doctors to do the abutment tooth preparation with full cast crowns for the maxillar left fixed prosthodontics three-unit bridge in random position. After that, following are the results of a study made on the influence to the prepared tooth form. The(More)
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