Effect of cleanser solutions on the color of acrylic resins associated with titanium and nickel-chromium alloys

Abstract

This study evaluated the effect of cleanser solutions on the color of heat-polymerized acrylic resin (HPAR) and on the brightness of dental alloys with 180 immersion trials. Disk-shaped specimens were made with I) commercially pure titanium, II) nickel-chromiummolybdenum-titanium, III) nickel-chromium molybdenum, and IV) nickel-chromium-molybdenum beryllium. Each cast disk was invested in the flasks, incorporating the metal disk into the HPAR. The specimens (n = 5) were then immersed in solutions containing: 0.05% sodium hypochlorite, 0.12% chlorhexidine digluconate, 0.500 mg cetylpyridinium chloride, a citric acid tablet, one of two different sodium perborate/enzyme tablets, and water. The color measurements (∆E) of the HPAR were determined by a colorimeter in accordance with the National Bureau of Standards. The surface brightness of the metal was visually examined for the presence of tarnish. The results (ANOVA; Tukey test-α = 0.05) show that there was a significant difference between the groups (p < 0.001) but not among the solutions (p = 0.273). The highest mean was obtained for group III (5.06), followed by group II (2.14). The lowest averages were obtained for groups I (1.33) and IV (1.35). The color changes in groups I, II and IV were slight but noticeable, and the color change was considerable for group III. The visual analysis showed that 0.05% sodium hypochlorite caused metallic brightness changes in groups II and IV. It can be concluded that the agents had the same effect on the color of the resin and that the metallic alloys are not resistant to the action of 0.05% sodium hypochlorite.

Effects of Denture Cleansers on Heat-Polymerized Acrylic Resin: A Five-Year-Simulated Period of Use

“…Although many studies tried to show the adverse effects of denture cleansers on heat-polymerized acrylic resin, up to now most of them failed to show clinically relevant adverse effects, maybe due to the short time period in which the acrylic resin was evaluated. Color, flexural strength and surface roughness alterations of denture resins were evaluated after immersion in peroxide and NaOCl solutions at 0.05%, 0.5% and 1%, but in simulated periods of 7, 90, 180 and 365 days of use (4,(9)(10)(11)(12)(13)(14).…”

Protez Temi̇zleyi̇ci̇ Solüsyonlarin Isi İle Poli̇meri̇ze Olan Akri̇li̇k Rezi̇ni̇n Mi̇krosertli̇ği̇ne Etki̇si̇

“…5 Alkalin hipokloritler lekeleri beyazlatmanın yanı sıra bakterisidal ve fungisidal ajanlardır ve protez dezenfeksiyonu için uygundurlar. 12 Sodyum hipoklorit protez temizliğinde rutin olarak tavsiye edilen kimyasal bir solüs-yondur. 11 Etkili bir dezenfektan ajan olmasına rağmen akrilik rezinde beyazlamaya ve protezin metal komponentlerinde korozyona neden olması kullanımlarını kısıtlar.…”

“…10 Alkalin peroksitlerin kimyasal temizliğin yanı sıra oksijen salınım procesi ile salınan oksijen kabarcıkları ile mekanik temizlik etkisi de vardır. 12 Gargaralar hoş kokuları ve tatları nedeni ile oldukça popülerdir ve protez yüzeyinde mikrobiyal kolonizasyonun oluşmasını önlerler. 12 %0.2 konsantrasyonda klorheksidin glukonat protez yüzeyinde oluşan dental plağın uzaklaş-tırılmasında etkilidir.…”

“…Çalışmalarda solüsyon-larda bekletme süresi 5 dakikadan sekiz saate kadar değişmektedir. 12,14,16,18,19 Bu çalışmada sonuçları karşı-laştırabilmek için tüm solüsyonlarda eşit bekletme süresi seçilmiştir. 10,20 Çalışmada Grup 3 (%1 NaOCl) hariç diğer gruplarda 720 daldırma sonunda mikrosertlik değerinde istatistiksel olarak anlamlı olmasa da azalma, Grup 4 (Alkalin peroksit tablet) de ise istatistiksel olarak anlamlı azalma görülmüştür.…”

Effect of Denture Cleansers on Cobalt‐Chromium Alloy Surface: A Simulated Period of 5 Years’ Use

“…NitrAdine effervescent tablet has been reported as having effective antimicrobial action against Candida albicans , unlike other tablets . In addition, there are reports that it does not cause adverse effects on the surface of the acrylic resin …”