Document Details

Document Type : Project 
Document Title :
Improvement of dentin bonding agent for direct composite resin restoration
تحسين الحشوات الجمالية للأسنان بإعادة تركيب المواد اللاصقة بها
 
Subject : Oral and Maxillofacial Rehabilitation 
Document Language : Arabic 
Abstract : Statement of problem. Fluorinated monomers have been shown to reduce water sorption in composite resins. Purpose. Dentin bonding resins generally based upon All-Bond 2 (AB, Bisco) and OptiBond Solo Plus (OB, Kerr) were formulated using fluorinated TEGDMA, TEGDMA, bis-EMA, and HEMA. The purpose of this study was to measure and compare water sorption and solubility among experimental resins with various concentration of F-TEGDMA (F-T) and commercial products. Materials and Methods. Light-curable, filled (f) and unfilled (u) bonding resins were made with F-T concentrations of 0, 17, 24, and 30 wt% of the resin component. Silanized barium silicate glass (Kerr) was used for the filled resin at 48 wt%. According to the ANSI/ADA specification # 27 (ANSA/ADA Specifications, ADA, Chicago 1993) water sorption (Wsp) and solubility values (Wsl) were determined for the 8 experimental and 2 commercial bonding resins with 5 specimens in each group. Result. The mean water sorption and solubility values in µg/mm3 are reported in the table. Identical superscripts show groups with no significant differences. R1f0 R2f17 R3f30 R4f24 OB R1u0 R2u17 R3u30 R4u24 AB Wsp 15±.7a 15±.3a 15±.2a 15±.3a 16±.4b 11±.1f 11±.1fg 12±.4g 11±.1fg 12±.2fg Wsl 14±.7c 15±.4cd 15±.2cd 15±.2cd 16±.4e 11±.1h 11±.1hi 11±.4hi 11±.1ij 11±.2j Statistical significant differences were found between filled and unfilled groups (p<0.05) using ANOVA and Tukey protocols. Conclusion. Filler particles in bonding resins increase water sorption and solubility. The experimental filled bonding resins showed less water sorption than did the commercial product. 
Publishing Year : 1425 AH
2005 AD 
Sponsor Name : kau 
Sponsorship Year : 1425 AH
2005 AD 
Added Date : Friday, October 23, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
محمد فرج عيادayad, mohammed faragInvestigatorDoctorate 

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 23332.doc doc 
 23333.doc doc 

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