Effect of denture cleansers on color stability and surface roughness of denture base acrylic resin

Abstract

Sodium hypochlorite 1% for 10 minutes a day in a month is the recommended hygiene protocol. The color stability of acryl is brand-type dependent but surface roughness is not.

Evaluation of the Functional Impression Technique with Various Impression Materials on the Surface Topography of Dental Stone Casts and Their Effect on Retention

“…The smooth surfaces of dental materials may cause easy surface cleaning and less microbial accumulation. Surface roughness measures the irregularities present on the dental stone cast and provides information on the morphology of the surface, such as a porous or textured surface, and is measured using a scanning electron microscope (SEM) [20] The tissue conditioner materials were left intraorally for at least 24 hours before pouring a dental stone cast to make an accurate impression and avoid distortion of the impression surface caused by insufficient elastic recovery of the materials [32].…”

Evaluation of a Realistic Cleansing Protocol for Preventing Discoloration of Denture Resins

“…Studies investigating the effect of cleansers on the color stability of denture resins have used a variety of protocols . They differ not only in the cleanser used but also in the immersion time and/or the duration of the whole experiment as well.…”

“…[24][25][26][27][28][29][30] Studies investigating the effect of cleansers on the color stability of denture resins have used a variety of protocols. 25,27,28,[30][31][32][33][34][35][36] They differ not only in the cleanser used but also in the immersion time and/or the duration of the whole experiment as well. 1, 3, 7, 30, 60, 90, or 180 days were the common time intervals at which resins were measured for changes in color, as a cumulative effect of the cleanser, where they were immersed continuously.…”

“…27,32,35,38 Denture resins are attacked daily by a number of stains that may alter the action of the cleanser. Although staining test protocols are numerous, 5,8,34,36,39 in only three of them is a staining protocol used in conjunction with a cleansing one. 34,36,39 However, these do not simulate a daily use of a cleanser, as a prevention regimen against permanent discoloration.…”

“…Although staining test protocols are numerous, 5,8,34,36,39 in only three of them is a staining protocol used in conjunction with a cleansing one. 34,36,39 However, these do not simulate a daily use of a cleanser, as a prevention regimen against permanent discoloration. Staining solutions and foods do not continuously affect denture resins in the oral environment.…”