Ruslan Effendy
Fakultas Kedokteran Gigi Universitas Airlangga

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Perbedaan kekuatan geser resin komposit nanohybrid dengan teknik water-wet bonding dan ethanol-wet bonding terhadap dentin Fara Dwiyanti; Ruslan Effendy; Setyabudi Setyabudi
Conservative Dentistry Journal Vol. 8 No. 1 (2018): January - June
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.821 KB) | DOI: 10.20473/cdj.v8i1.2018.20-24

Abstract

Background: Composite resins are widely used today to replace lost tooth structure. Bonding between dentin and resin is a complex process that is influenced by several factors; one of which is ambient humidity. During drying after acid etching, it is recommended not to leave the surface of preparation too dry or too wet. If the surface is too dry, collagen will shrink and collapse. As a result, the bonding material cannot penetrate into the cavity between the fibers. If the dentine is too wet, the bonding material will also be difficult to bind with the collagen, either chemically or mechanically. The amount of water around the collagen closely correlates with the moisture created around the dentin surface during the drying process and also whether or not a rubber dam was used during the preparation process. This study is aimed to compare water wet bonding and ethanol wet bonding technique to control humidity. One way of measuring the strength of bonding is to measure shear strength. Purpose: to compare water wet-bonding and ethanol wet-bonding technique.Materials and Methods: 32 samples of bovine teeth incisors were randomly divided into 2 group. Each group consists of sixteen samples. Group 1 is treated with water wet-bonding,group 2 is treated with ethanol wet-bonding. Results: There is significant difference between group 1 and group 2. Conclusion: Shear bond strength of the composite resin bonding on dentin with ethanol wet-bonding technique is higher than the shear bond strength of the composite bonding on dentin with water wet-bonding.
Kekuatan Perlekatan Geser Tumpatan Semen Ionomer Kaca pada Dentin setelah Aplikasi Dentin Conditioner dan Cavity Conditioner Dewi Kusuma Wardani; Ruslan Effendy; Widya Saraswati
Conservative Dentistry Journal Vol. 8 No. 1 (2018): January - June
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.705 KB) | DOI: 10.20473/cdj.v8i1.2018.36-41

Abstract

Backround: Smear layer formed during cavity preparation interfere with the adhesion between restoration and tooth structure and is considered a barrier that would degrade the quality of adhesion. Smear layer does not have a stable substrate for adhesion, gradually layer dissolves in the restorative material and cause microleakage, penetration of bacteria and inflammation of the pulp. Adhesion to dentin is more difficult to achieve than enamel, therefore the cleaning procedure on dentin require special treatment. Conditioner form a weak acid is used to remove the smear layer and surface contamination on the email or dentin which can reduce the adhesion of the material and the tooth surface. Dentin conditioner is an acid material containing 10% polyacrylic acid conditioner while Cavity conditioner an acid material containing 20% polyacrylic acid and 3% aluminum chloride. The higher the concentration, the more smear layer is dissolved in order to obtain adhesion of glass ionomer cements better because it is not blocked by the smear layer. Purpose: The purpose of this laboratory research is to study the shear bond strength of glass ionomer cement in dentin after application dentin conditioner and cavity conditioner .Material and Method: Twenty seven bovine cow's teeth were divided into three groups. Each group consisted of nine samples. Group 1 was control (without conditioner). Group 2 was treated with the Dentin conditioner. Group 3 was treated with the Cavity conditioner. Result: The average shear bond strength in group 1 is 3.31 Mpa, group 2 is 7.74 MPa and group 3 is 9.92 Mpa. Conclusion: There is a significant difference between third group and the shear bond strength of glass ionomer cement on dentin with application of the Cavity conditioner is higher than with application of the Dentin conditioner and without application conditioner