Skip Navigation
Skip to contents

Restor Dent Endod : Restorative Dentistry & Endodontics

OPEN ACCESS

Search

Page Path
HOME > Search
3 "Dentin surface"
Filter
Filter
Article category
Keywords
Publication year
Authors
Basic Research
Effect of cutting instruments on the dentin bond strength of a self-etch adhesive
Young-Gon Lee, So-Ra Moon, Young-Gon Cho
J Korean Acad Conserv Dent 2010;35(1):13-19.   Published online January 31, 2010
DOI: https://doi.org/10.5395/JKACD.2010.35.1.013
AbstractAbstract PDFPubReaderePub

The purpose of this study was to compare the microshear bond strength of a self-etching primer adhesive to dentin prepared with different diamond points, carbide burs and SiC papers, and also to determine which SiC paper yield similar strength to that of dentinal surface prepared with points or burs.

Fifty-six human molar were sectioned to expose the occlusal dentinal surfaces of crowns and slabs of 1.2 mm thick were made. Dentinal surfaces were removed with three diamond points, two carbide burs, and three SiC papers. They were divided into one of eight equal groups (n = 7); Group 1: standard diamond point(TF-12), Group 2: fine diamond point (TF-12F), Group 3: extrafine diamond point (TF-12EF), Group 4: plain-cut carbide bur (no. 245), Group 5: cross-cut carbide bur (no. 557), Group 6 : P 120-grade SiC paper, Group 7: P 220-grade SiC paper, Group 8: P 800-grade SiC paper.

Clearfil SE Bond was applied on dentinal surface and Clearfil AP-X was placed on dentinal surface using Tygon tubes. After the bonded specimens were subjected to uSBS testing, the mean uSBS (n = 20 for each group) was statistically compared using one-way ANOVA and Tukey HSD test.

In conclusion, the use of extrafine diamond point is recommended for improved bonding of Clearfil SE Bond to dentin. Also the use of P 220-grade SiC paper in vitro will be yield the results closer to dentinal surface prepared with fine diamond point or carbide burs in vivo.

  • 19 View
  • 0 Download
Close layer
Original Articles
EFFECT OF DENTIN SURFACE WETNESS ON TENSILE BOND STRENGTH OF SELF ADHESIVE RESIN CEMENTS
Sung-Young Yoon, Se-Hee Park, Jin-Woo Kim, Kyung-Mo Cho
J Korean Acad Conserv Dent 2009;34(2):113-119.   Published online January 14, 2009
DOI: https://doi.org/10.5395/JKACD.2009.34.2.113
AbstractAbstract PDFPubReaderePub
Abstract

The purpose of this study was to compare the tensile bond strength of several self-adhesive resin cements bonded to dentin surfaces with different wet conditions.

Three self-adhesive resin cements; Rely-X Unicem (3M ESPE, St. Paul, MN, USA), Embrace Wetbond (Pulpdent, Oakland, MA, USA), Maxcem (Kerr, Orange, CA, USA) were used. Extracted sixty human molars were used. Each self-adhesive resin cement was adhered to the dentin specimens (two rectangular sticks from each molar) in different wet conditions.

Tensile bond strength were measured using universal testing machine (EZ Test, Shimadzu corporation, Kyoto, Japan) at a crosshead speed of 1.0mm/min. After the testing, bonding failures of specimens were observed by Operative microscope (OPMI pro, Carl Zeiss, Oberkochen, Germany). T-test was used to evaluate the effect of dentin surface wetness. One-way ANOVA test was used to evaluate the tensile bond strength of self-adhesive resin cements in the same condition. Scheffe's test was used for statistical analyzing at the 95% level of confidence.

The result showed that wetness of dentin surface didn't affect tensile bond strength of self-adhesive resin cements and Maxcem showed the lowest tensile bond strength.

  • 23 View
  • 0 Download
Close layer
INFLUENCE OF APPICATION TIME OF SELF-ETCHING PRIMERS ON DENTINAL MICROTENSILE BOND STRENGTH
Young-Gon Cho, Young-Gon Lee, Jong-Uk Kim, Byung-Cheul Park, Jong-Jin Kim, Hee-Young Choi, Cheul-Hee Jin, Sang-Hoon Yoo
J Korean Acad Conserv Dent 2004;29(5):430-438.   Published online January 14, 2004
DOI: https://doi.org/10.5395/JKACD.2004.29.5.430
AbstractAbstract PDFPubReaderePub
ABSTRACT

This study evaluated the influence of application time of self-etching primers on microtensile bond strength (μTBS) to dentin using three self-etching primer adhesive systems.

Dentin surfaces were exposed from forty-eight human molars. They were conditioned with three self-etching primers (Clearfil SE Bond [SE], Unifil Bond [UF], Tyrian SPE + One Step Plus [TY]) and different primining times (10s, 20s, 30s and 40s). Composite resins were bonded to dentin surfaces and specimens were made. μTBS was tested and statistically compared using by one-way ANOVA and Tukey’s Test.

The results of this study presented that priming time for 10s in SE and UF groups and for 30s and 40s in TY group was highly decreased μTBS to dentin.

  • 19 View
  • 0 Download
Close layer

Restor Dent Endod : Restorative Dentistry & Endodontics
Close layer
TOP