Publications by authors named "Hiromi Hotta"

Purpose: The objective of this study was to evaluate the suitability of monolithic zirconia crowns (MZC) as abutment teeth of Akers clasps on removable partial dentures (RPD) by determining the change in retentive force after repetitive insertion/removal test.

Methods: MZC and silver palladium copper alloy (Ag-Pd) full-metal crowns (FMC) for the mandibular second premolar were fabricated. Resin patterns of Akers clasps made with a 3D printer were casted with Ag-Pd or cobalt chromium alloy (Co-Cr).

View Article and Find Full Text PDF

When multiple tooth loss causes loss of occlusal-masticatory function, functional recovery is normally obtained with the help of removable dentures. After resection of the jawbone or tongue because of tumors, the movement of the tongue and its surrounding tissues is limited, and patients exhibit a more pronounced loss of chewing and swallowing than that observed in other cases of multiple tooth loss. In such cases, it is necessary to take extra care in determining the position of the mandible, arrangement of artificial teeth, and morphology of the palate.

View Article and Find Full Text PDF

Susceptibility to the gag reflex may render insertion of removable dentures very difficult. The use of intravenous sedation in such cases allows for the fabrication of dentures with decreased discomfort to the patient. When the completed dentures are inserted, however, discomfort may still occur as the effects of the gag reflex will again be felt.

View Article and Find Full Text PDF

Purpose: The purpose of this study was to examine the usefulness of a new gustatory test based on the progress of mastication by counting the number of chewing strokes required for recognizing tastes.

Methods: Thirty-nine subjects (20 males and 19 females, 25.3±6.

View Article and Find Full Text PDF

The objective of this report was to review 365 cases of Brånemark Implant Bridge including 1,444 fixtures in patients of Tokyo Dental College Chiba Hospital. The term of implantation was divided into several phases; less than 1 year, from 1 year to 3 years, from 3 years to 5 years, from 5 years to 7 years, from 7 years to 10 years, more than 10 years, and the survival rate was calculated for each phase. The removal rate of fixture after connecting the superstructure was 13% in maxillary cases and 2% in mandibular cases.

View Article and Find Full Text PDF