Color stability of maxillofacial silicone with nanoparticle pigment and opacifier submitted to disinfection and artificial aging

Haddad, Marcela Filié; Goiato, Marcelo Coelho; Santos, Daniela Micheline dos; Moreno, Amália; D’almeida, Nuno Filipe; Bitencourt, Sandro Basso

doi:10.1117/1.3625401

Cited by 40 publications

(37 citation statements)

References 34 publications

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“…The literature is scarce in relation to clinical studies that evaluate different methods of hygiene for maxillofacial prostheses, however, it offers researches that evaluate the interaction between the substances used for hygiene with the base material and the pigments added intrinsically, used to make these prostheses. In this context, several substances and methods of hygiene / disinfection have already been tested (neutral soap 2,4-9 , chlorhexidine 5 , hypochlorite 7 , effervescent tablets 2,4,8,9 , plant extracts 5 , ethanol 6 , microwave energy 7 ) and none of them are considered ideal on all aspects (bactericidal potential and preservation of all properties of silicon and pigments). There are no studies evaluating the behavior of pigments added extrinsically to the facial silicone when submitted to the hygienization process.…”

Section: Discussionmentioning

confidence: 99%

“…Silastic MDX4-4210 (Dow Corning Corporation, Midland, MI, EUA) is a material used to make maxillofacial prostheses and was used to fabricate 160 specimens, that was divided in 8 groups (n=20) acoording the pigmentation, as shown in the Table 1. A metallic cylindrical matrix (30-mm diameter, 3-mm thick) was used to obtain the specimens 2 . The silicone were weighed using a precision digital scale (BEL Analytical Equipments, Piracicaba, Brazil).…”

Section: Methodsmentioning

confidence: 99%

“…After the initial color test, all specimens were stored in a black box without light 2,9,14 . The specimens were disinfected three times per week for 2 months 2,9,14 after reading the initial color.…”

Section: Methodsmentioning

confidence: 99%

“…The specimens were cleaned with neutral soap and rubbed with the fingertips for 30 seconds, then rinsed with water for 30 seconds 2,9,14 . The specimens were immersed in a solution of 1% hypochlorite for 10 minutes and rinsed in running water 2,9,14 .…”

Section: Methodsmentioning

confidence: 99%

“…Maxillofacial prostheses hygiene is little explored in the literature in clinical studies. There are researches that evaluate the action of substances commonly used for complete dentures hygiene (such as neutral soap 2,4-9 , hypochlorite 7 , chlorhexidine 5 , effervescent tablets 2,4,8,9 , ethanol 6 , microwave energy 7 and plant extracts 5 ) and the methods of hygiene (immersion 2,[4][5][6]8,9 or friction 2,4-6,7-9 ) on physical properties of non-pigmented or pigmented intrinsically with different substances (makeup powders 8,10 , ceramic pigments 8,10,11 , oil paint 1 and/or opacifiers 9 ) used in the manufacture of facial prostheses.…”

Section: Introductionmentioning

confidence: 99%

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Effect of different methods of hygiene on the color stability of extrinsically pigmented facial silicone

Cabral¹,

Pesqueira²,

Moreno³

et al. 2018

Braz. J. Oral Sci.

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Evaluate the color stability of facial silicone pigmented extrinsically under the influence of the hygiene process. Methods: 160 samples were prepared and divided into 8 groups (n = 20) according to the pigmentation technique used: Group 1: Colorless silicone; Group 2: Pigmented exclusively with oil ink; Group 3: Pigmented with oil ink + opacifier; Group 4: Colorless, applying Prime; Group 5: Pigmented with oil ink covered with Prime; Group 6: Pigmented with oil ink + opacifier and covered with Prime; Group 7: Pigmented with oil ink diluted in Prime; Group 8: Pigmented with oil ink + opacifier diluted in Prime. Then the samples were distributed into two subgropus (n=10): 1: neutral soap and 2: 1% hypochlorite solution. The color readings occurred in the initial period and 60 days after the hygiene procedures. For this, it was used a spectrophotometer reflection and CIE-Lab program. The data was tabulated and submitted to analysis of variance (ANOVA) followed by Tukey test (p <0.05). Results: The groups of samples disinfected with soap showed significantly lower color change values than those presented by the samples disinfected with hypochlorite. The best results were presented by the group of samples pigmented with oil ink diluted in prime and sanitized with neutral soap (ΔE=1.21, without opacifier and ΔE=0.82, with opacifier). Conclusions: The association of oil ink diluted in prime and hygiene technique with soap promotes the lower color change of facial silicone pigmented extrinsically.

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