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Avicenna Journal of Dental Research، جلد ۸، شماره ۱، صفحات ۰-۰
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| عنوان فارسی |
The Effect of Laser Irradiation on Shear Bond Strength of GI to Dentin After CPP-ACP Treatment |
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| چکیده فارسی مقاله |
Background Dentin sensitivity is one of the most important problems in dentistry. Enamel loss due to root exposure is serious issue and common exposure is one of the reasons for dentin hypersensitivity. There are different methods for solving this problem. One of the most conservative and least expensive methods is use of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste. Objectives The aim of this study was to evaluate shear bond strength of GIC to dentin, with or without laser, CPP-ACP paste and polyacrylic acid treatments. Materials and Methods Fifty sound human third molars were bisected in a mesiodistal direction using a diamond disk. Using 400, 600 and 800 grit silicon carbide paper, dentin surfaces were exposed. The teeth were divided into five groups. In groups A, B, D and H, CPP-ACP (GC tooth mousse Itabashi-Ku, Tokyo, Japan) was applied for one hour the first day and repeated at the same time of day for a total of five days. In groups B, C, D and E, the specimens were subjected to laser for 10 seconds using Er, Cr: YSGG laser. In groups B, C, H and G, specimens were treated with 10% polyacrylic acid for 20 seconds. A plastic tube containing GI was positioned over the tooth. Samples were loaded in shear bond using a Universal Testing Machine (Zwick/Roell, Germany), at a 0.5 mm/minute crosshead speed. Results Despite the failing of groups A and D, group analysis showed that there were no significant differences between the groups. The predominant type of fracture in all groups was adhesive. Conclusions Application of CPP-ACP, without preconditioning with polyacrylic acid, can decrease shear bond strength. Laser irradiation has no effect on shear bond strength of GIC to dentin in this condition. |
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| کلیدواژه‌های فارسی مقاله |
CPP-ACP،Laser،Glass Ionomer،Shear Strength،Tooth Mousse |
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| عنوان انگلیسی |
The Effect of Laser Irradiation on Shear Bond Strength of GI to Dentin After CPP-ACP Treatment |
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| چکیده انگلیسی مقاله |
Background Dentin sensitivity is one of the most important problems in dentistry. Enamel loss due to root exposure is serious issue and common exposure is one of the reasons for dentin hypersensitivity. There are different methods for solving this problem. One of the most conservative and least expensive methods is use of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste. Objectives The aim of this study was to evaluate shear bond strength of GIC to dentin, with or without laser, CPP-ACP paste and polyacrylic acid treatments. Materials and Methods Fifty sound human third molars were bisected in a mesiodistal direction using a diamond disk. Using 400, 600 and 800 grit silicon carbide paper, dentin surfaces were exposed. The teeth were divided into five groups. In groups A, B, D and H, CPP-ACP (GC tooth mousse Itabashi-Ku, Tokyo, Japan) was applied for one hour the first day and repeated at the same time of day for a total of five days. In groups B, C, D and E, the specimens were subjected to laser for 10 seconds using Er, Cr: YSGG laser. In groups B, C, H and G, specimens were treated with 10% polyacrylic acid for 20 seconds. A plastic tube containing GI was positioned over the tooth. Samples were loaded in shear bond using a Universal Testing Machine (Zwick/Roell, Germany), at a 0.5 mm/minute crosshead speed. Results Despite the failing of groups A and D, group analysis showed that there were no significant differences between the groups. The predominant type of fracture in all groups was adhesive. Conclusions Application of CPP-ACP, without preconditioning with polyacrylic acid, can decrease shear bond strength. Laser irradiation has no effect on shear bond strength of GIC to dentin in this condition. |
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| کلیدواژه‌های انگلیسی مقاله |
CPP-ACP,Laser,Glass Ionomer,Shear Strength,Tooth Mousse |
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| نویسندگان مقاله |
مریم معزی زاده | maryam moezizadeh
department of restorative dentistry, dental school, shahid beheshti university of medical sciences, tehran, ir iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)
سیده مهسا شیخ al اسلامیان | seyedeh mahsa sheikh al eslamian
dental research center, research institute of dental sciences, dental school, shahid beheshti university of medical sciences, tehran, ir iran; department of restorative dentistry, dental school, shahid beheshti university of medical sciences, velenjak, evin, tehran, ir iran. tel 98-2122413897, fax 98-2122427753
سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)
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| نشانی اینترنتی |
http://www.avicennajdr.com/index.php?page=article&article_id=27399 |
| فایل مقاله |
فایلی برای مقاله ذخیره نشده است |
| کد مقاله (doi) |
10.17795/ajdr-27399 |
| زبان مقاله منتشر شده |
fa |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
1 |
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