초록접수 기간

• - 초록접수 기간 : 8월 17일(월) – 8월 31일(월)
• - 신진연구자 구연발표자료 업로드 마감일 : 10월 14일(수)

초록접수 요령

• 1. 온라인으로만 초록을 접수합니다.
• 2. 모든 초록은 반드시 영문(2500자 이내)으로 작성하여 주시기 바랍니다.
• 3. 각 분야별 발표 파일은 10월 14일(수)까지 각 링크에 맞게 업로드 하시기 바랍니다. 발표 시간은 10분, 질의응답은 5분입니다.
• 4. 마감 시한을 넘긴 발표자는 시상 대상에서 제외되므로 시한을 꼭 지켜주시기 바랍니다.
  「전공의는 수련기간 중 대한치과보존학회 학술집회에서 주 저자로서 1편 이상의 학술논문을 발표하고, 증례 또는 원저를 본 학회 및 본 학회에서 인정하는 학회에서 보존수복학 분야 및 근관치료학 분야 각 1편 이상 씩 발표한다. 단, 2편 이상은 본 학회에서 발표한다.」

연구발표 초록 작성 요령

• Title:
• Author:
• affiliation:
• I. Objectives
• II. Materials and Methods
• III. Results
• IV. Conclusion

연구발표 초록 예시

The Effect of the Intermediate Resin Layer on Bond Strength and Durability of Single-Step Adhesives

****-* **** *, ******-*** ****, ****-*** ****
Department of Conservative Dentistry, ******** University, Seoul, Korea

I. Objectives

Currently used simplified adhesives are preferred by many dentists for easy bonding step and less time consuming bonding procedure. But, aside from the convenient use of single-step adhesives, they are so hydrophilic that they progress rapid hydrolytic degradation of resins in hybrid layer. The purpose of this study is to evaluate the effect of the intermediate resin layer which have different hydrophilicity on bond strength and the durability of dentin bonding using single-step adhesives by means of the micro-tensile bond testing and FE-SEM and TEM examination.

II. Materials & Methods

Two single-step self-etch adhesives; G-Bond(GC Corporation, Japan) and Clearfil Tri-S Bond(Kuraray, Japan); and two intermediate resin; D/E Resin in All-Bond2(Bisco, USA) and experimental hydrophobic resin; were used in this study. For control group, each single-step adhesive was used according to the manufacturer’s instruction. For experimental groups, two kinds of intermediate resin were used over single-step adhesives which had not been light-cured. Each group was further divided into 3 subgroups by thermocycling(0, 5,000 and 20,000 cycles). The results of bonding strength were statistically analyzed using ANOVA and multiple comparisons are made using Turkey’s test at p<0.05 level.

III. Results

There were no significant difference on microtensile bond strength between control group and experimental groups using intermediate resin layer regardless of the hydrophilicity of intermediate resin(p>0.05). After thermocycling, the microtensile bond strengths of control groups were significantly decreased (p<0.05) whereas the experimental groups were not significantly different (p>0.05).

IV. Conclusion

The durability of single-step adhesives can be improved by the additional application of intermediate resin layer.