Abstract

Determination and confirmation of vertical jaw relation (vertical dimension) at the time of full denture construction prosthesis is one of the most difficult steps. As a device for recording vertical jaw relation, the Tsubone's bite gauge has been in use at our clinic and good results have been obtained. The characteristics and usage of the Tsubone's bite gauge have been described in the present paper and examination has been made of the vertical jaw distance of individual normal occlusion and the measurement taken of the parts, deemed to be related, of the body. The examination indicated that the measurements were approximately the same for subnasal point-submental region distance at mandibular rest position, pupil line-oral fissure distance, and the left index finger length. The measurements did not vary much when they were taken by one and the same operator. The measurements however varied among different operators. Therefore, care must be taken on this respect in using the Tsubone's bite gauge.

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