Cigarette Staining and Cleaning of a Maxillofacial Silicone

Yu, Robert K.; Koran, A.; Raptis, C.N.; Craig, Robert G.

doi:10.1177/00220345830620072101

Cited by 13 publications

(7 citation statements)

References 6 publications

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“…5 Concerns with color degradation of facial prostheses have directed most of the studies on color stability of base elastomer and colorants. [6][7][8][9] Later, the emphasis has been more on research towards developing methods for color matching of maxillofacial prostheses to human skin. [10][11][12][13] Different color measuring devices have been used to evaluate the color stability of maxillofacial elastomers.…”

Section: Introductionmentioning

confidence: 99%

Influence of pigments and opacifiers on color stability of silicone maxillofacial elastomer

Kiat-amnuay

Beerbower

Powers

et al. 2009

Journal of Dentistry

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Section: Introductionmentioning

confidence: 99%

Influence of pigments and opacifiers on color stability of silicone maxillofacial elastomer

Kiat-amnuay

Beerbower

Powers

et al. 2009

Journal of Dentistry

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“…In dental literature, the staining of various aesthetic dental materials like composite resin [1,3-5,7] and maxillofacial silicone [8] by cigarette smoke has been reported,. Also, there is a good amount of literature which have reported staining which was caused by food colourants, like staining of artificial teeth [9,10], aesthetic restorative materials [11,12], denture base resin [13] and acrylic resins for provisional restoration [14].…”

Section: Discussionmentioning

confidence: 99%

Effect of Cigarette Smoke on Acrylic Resin Teeth

Ak²

2013

JCDR

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Background: The discolouration of artificial teeth, which hampers aesthetics, is one of the negative effects of cigarette smoking. Therefore, the effect of cigarette smoke on the colour stability of commercially available acrylic resin teeth needs to be evaluated for clinical success and to ascertain as to which brand has superior properties. Materials and Methods:Three commercially available acrylic teeth were evaluated, after division into Group A (Premadent), Group B (Astra), and Group C (Sanyo-Dent). Selected brands were subdivided as study group and control group. Each set of acrylic resin teeth were stored in artificial saliva at 37±1 o C for 24 hours. After 24 hours of immersion, the colour measurement of each tooth (T0) was performed. Second colour measurements were done after 21 days (T21) of exposure to cigarette smoke for study group and after immersion in artificial saliva for control group. All data was statistically analyzed by using Repeated Measures ANOVA and Two-way ANOVA.(p<0.05)Results: Group A showed least total colour change on exposure to cigarette smoke, followed by Group B and Group C had the highest total colour change. In control group, after immersion in artificial saliva, a slight increase in total colour change was observed for all groups, which was clinically acceptable. Conclusion:Group A (crosslinked acrylic resin teeth) was more colour stable and more resistant to the discolouration which was caused by cigarette smoke, followed by Group B (crosslinked acrylic resin teeth). Group C (Non-crosslinked acrylic resin teeth) was least colour stable and most susceptible to discolouration which was caused by cigarette smoke.

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“…Paper-making reconstituted tobacco (PRT) is a kind of product which can reduce the tar release amount effectively, its quality affects the quality of cigarette products directly, and the coating process is key to the whole produce process [1][2], well-controlled coating rate has great influence on reducing the fluctuation of product physical and chemical indicators and keeping the stability of product quality [3][4][13][14]. As there is no uniform testing method and error requirement for coating rate in China, various industries including coating industry have different calculation methods for coating rate [5][6][15][16], and can only be calculated online while producing [7][8]; For cigarette manufacturing enterprises, the reconstituted tobacco products they receive are mostly coated products in pieces of different sizes, and the coating rate cannot be detected by taking round sheet of 100cm 2 on-line.…”

Section: Introductionmentioning

confidence: 99%

Study on Correlation Between Coating Rate and Hot Water Soluble Substances of Reconstituted Tobacco

Su¹

2018

AJAF

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The corresponding relationship between the coating rate and hot water soluble of paper-making reconstituted tobacco was studied in this paper which provided references for the research and application on the off-line detecting of coating rate. Through the accurate quantitative coating experiment, the hot water soluble of reconstituted tobacco by paper-making was determined through soxhlet extraction and coffee machine washing in this paper. And the corresponding relationship between the coating rate and hot water soluble determined by these two methods was also compared in order to make sure which method was more suitable. The results showed that the hot water soluble value was significantly positively correlated with coating rate (P<0.01), if the coating rate distribute between 38% and 46%. The linear equation obtained y=1.007x+1.387, R 2 =0.974 and y=0.932x+3.181, R 2 =0.985, respectively. The hot water soluble value determined by these two methods were different from each other. And the values determined by soxhlet extraction were mostly lower than the values detected by coffee machine washing; The coating rate derived from hot water soluble values determined by coffee machine washing was more closer to the actual values. It is feasible to derive the coating rate from hot water soluble values, and the method of coffee machine washing is more suitable for practical production testing, which has the advantage of short testing time and simple operation.

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Cigarette Staining and Cleaning of a Maxillofacial Silicone

Cited by 13 publications

References 6 publications

Influence of pigments and opacifiers on color stability of silicone maxillofacial elastomer

Influence of pigments and opacifiers on color stability of silicone maxillofacial elastomer

Effect of Cigarette Smoke on Acrylic Resin Teeth

Study on Correlation Between Coating Rate and Hot Water Soluble Substances of Reconstituted Tobacco

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