抄録
Purpose: Denture plaque tends to form on the
surface of the resins that are used as denture base
materials, and Candida spp., including Candida
albicans, are said to be causative organisms of
denture stomatitis. Thus, modifying the surface
properties of the resin to make it more difficult for
denture plaque to adhere is very useful in terms of
oral hygiene. In order to evaluate the usefulness of
surface treatment with straight silicone, in this
study we used heat-polymerized acrylic resin
(polymethylmethacrylate [PMMA]) as the test
material, and performed C. albicans adhesion
test, a protein adsorption test and contact angle
measurements with distilled water. Results:
Significantly fewer C. albicans adhered and significantly
less protein adsorbed in the coated group
than in the control group or the buff-polished
group (P<0.01). The angle of contact with distilled
water in the coated group was significantly larger
than in the control group or buff-polished group
(P<0.01). Conclusion: Coating with straight silicone
easily succeeded in improving the surface
properties of PMMA used as the denture base
material so that it became difficult for C. albicans to
adhere, suggesting that an important property
can be acquired clinically.
