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Avicenna Journal of Dental Research، جلد ۸، شماره ۱، صفحات ۰-۰
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| عنوان فارسی |
A Comparative Study of Heat and Self-Cured Acrylic Resins on Color Stability of ۵ Brands of Denture Teeth |
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| چکیده فارسی مقاله |
Conclusions Coffee caused the most color changes in the examined resin denture teeth. Tea and cola left less staining on the teeth, and distilled water caused the least discoloration. Generally, investing by heat- and cold-cured acrylic resins can significantly affect the color stability of resin denture teeth; however, heat-cured acrylic resins had fewer color changes. Results There were significant differences in color change between the cold-cured acrylic resins and the heat-cured acrylic resins, with a reduced amount of discoloration in the heat-cured group (ΔE = 10.12 ± 3.93, P = 0.001). The solutions showed significantly different amounts of discoloration on the teeth; distilled water had the least effect (ΔE = 8.49 ± 2.62, P = 0.001) and coffee had the maximum discoloration (ΔE = 14.14 ± 7.77, P = 0.001). A Tukey test showed that there was no significant difference between each brand of denture teeth. Background Denture teeth play a critical role in overall aesthetic outcomes of removable complete dentures, and long-term maintenance of these outcomes depends on the color stability of the prosthetic teeth. The characteristics of denture base resins play a significant role in prosthetic clinical performance and aesthetics. Objectives The purpose of this study was to assess the effect of two flasking materials on the color stability of five brands of denture teeth that were immersed in commonly consumed beverages. Materials and Methods In the present study 560 denture teeth (20 series) were invested with heat- and cold-cured acrylic resin. All the specimens were thermo cycled between 4°C and 60°C, with 60 Seconds dwell times for 1000 cycles. Subsequently, the specimens in each group were divided into four subgroups based on the immersion medium: coffee, tea, cola, or distilled water. Digital images of the teeth were taken before immersion and 30 days after immersion. The color samples were measured using the CIE L* a* b* system, and color differences (ΔE) were calculated. The data were evaluated by 3-way ANOVA and the Tukey HSD test. |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
A Comparative Study of Heat and Self-Cured Acrylic Resins on Color Stability of 5 Brands of Denture Teeth |
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| چکیده انگلیسی مقاله |
Conclusions Coffee caused the most color changes in the examined resin denture teeth. Tea and cola left less staining on the teeth, and distilled water caused the least discoloration. Generally, investing by heat- and cold-cured acrylic resins can significantly affect the color stability of resin denture teeth; however, heat-cured acrylic resins had fewer color changes. Results There were significant differences in color change between the cold-cured acrylic resins and the heat-cured acrylic resins, with a reduced amount of discoloration in the heat-cured group (ΔE = 10.12 ± 3.93, P = 0.001). The solutions showed significantly different amounts of discoloration on the teeth; distilled water had the least effect (ΔE = 8.49 ± 2.62, P = 0.001) and coffee had the maximum discoloration (ΔE = 14.14 ± 7.77, P = 0.001). A Tukey test showed that there was no significant difference between each brand of denture teeth. Background Denture teeth play a critical role in overall aesthetic outcomes of removable complete dentures, and long-term maintenance of these outcomes depends on the color stability of the prosthetic teeth. The characteristics of denture base resins play a significant role in prosthetic clinical performance and aesthetics. Objectives The purpose of this study was to assess the effect of two flasking materials on the color stability of five brands of denture teeth that were immersed in commonly consumed beverages. Materials and Methods In the present study 560 denture teeth (20 series) were invested with heat- and cold-cured acrylic resin. All the specimens were thermo cycled between 4°C and 60°C, with 60 Seconds dwell times for 1000 cycles. Subsequently, the specimens in each group were divided into four subgroups based on the immersion medium: coffee, tea, cola, or distilled water. Digital images of the teeth were taken before immersion and 30 days after immersion. The color samples were measured using the CIE L* a* b* system, and color differences (ΔE) were calculated. The data were evaluated by 3-way ANOVA and the Tukey HSD test. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
فریبرز وفایی | fariborz vafaee
department of prosthodontics, dental research center, hamadan university of medical sciences, hamadan, ir iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
ابوالقاسم محمدی | abolghasem mohammadi
department of prosthodontics, shahid beheshti university of medical sciences, tehran, ir iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)
معصومه خوشحال | masoumeh khoshhal
department of periodontics, school of dental medicine, hamadan university of medical sciences, hamadan, ir iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
حنیف اله بخشی | hanif allahbakhshi
department of prosthodontics, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
حمیدرضا سلیمانی مهر | hamidreza soleimani mehr
department of prosthodontics, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran; department of prosthodontics, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran. tel 98-9123757972
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
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| نشانی اینترنتی |
http://www.avicennajdr.com/index.php?page=article&article_id=30328 |
| فایل مقاله |
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| کد مقاله (doi) |
10.17795/ajdr-30328 |
| زبان مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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