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Biomedical subjects

S Minagi

Publications and source records attributed to S Minagi.

60 records · Page 4Linked to original sources
PubMed1986

Surface hydrophobicity and adherence of Candida to acrylic surfaces.

The relationship between cell surface hydrophobicities and adherence capacities to acrylic surfaces was investigated with seven laboratory strains and eighteen clinical isolates of Candida species. C. albicans was less adherent to acrylic surfaces than were other species and hardly adhered to hexadecane, whereas other strains, which had a high affinity to hexadecane, were more adherent to acrylic surfaces. A correlation was observed between the adherence capacities of Candida species to acrylic surfaces and their cell hydrophobicities. When acrylic plates were coated with human whole saliva, the contact angle of the plate became smaller than that of the nontreated plate and adherence of hydrophobic strains decreased, whereas the adherence of C. albicans was not affected.

Acrylic Resins↗
PubMed1985

Hydrophobic interaction in Candida albicans and Candida tropicalis adherence to various denture base resin materials.

The effects of hydrophobicities of substrate surfaces on microbial adherence were examined by using Candida albicans and Candida tropicalis and 21 denture base resin materials. With increasing surface free energy of resin plates, increasing adherence of C. albicans and decreasing adherence of C. tropicalis were observed. The surface free energy of C. albicans is higher than that of all resin material surfaces, and C. tropicalis has surface free energy lower than that of all materials used. In calculation of the changes of free energy accompanying the adherence, the higher adherence tendency was accompanied by a lower value for the free energy change in both species. From a different standpoint, the closer the surface free energy of the substrate surface and the microorganism, the higher was the probability of adherence.

Candida↗
PubMedDate not supplied

The effect of the mandibular buccal denture base surface on food retention.

The accumulation of food debris in the buccal vestibule surrounding a mandibular denture flange was studied. This investigation focused on the effect of the thickness, physiologic molding, and slope of the buccal flange of denture base on the patient's ability to expel test-food particles from the area. Experimental denture bases were placed in the mandibular buccal vestibule of subjects having a complete natural dentition. Only the slope of the polished surface of buccal flange was found to have a significant positive correlation with the ability to expel test food from the buccal vestibule.

Adult↗
PubMedDate not supplied

Mushroom-shaped resilient retainer for maxillary obturator prostheses.

A new type of highly resilient retainer for maxillary obturator prostheses is described. The obturator component is composed of an acrylic resin connector and a round resilient wing, with the combined shape resembling a mushroom. The retainer is designed to absorb mechanical stresses, which are transmitted from the denture portion to nasal soft tissues through the obturator extension, and to use tissue undercuts more effectively than do conventional hollow extension prostheses. Renewability of the retainer part is another advantage of this retainer. From these properties, the retainer seems to have many indications for the prosthodontic treatment of maxillary defects.

Denture Retention↗