Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
권호 표지

The Shear Bond Strength of Resin to Electroforming Gold according to the Surface Treatment

표면처리방법에 따른 Electroforming Gold와 레진과의 전단결합강도

  • You, Byung-Il (Department of Prosthodontics, and Institute of Oral Bio-Science, School of Dentistry, Chonbuk National University) ;
  • Chang, Mun-Suk (Department of Prosthodontics, and Institute of Oral Bio-Science, School of Dentistry, Chonbuk National University) ;
  • Yoon, Tae-Ho (Department of Prosthodontics, and Institute of Oral Bio-Science, School of Dentistry, Chonbuk National University) ;
  • Park, Ju-Mi (Department of Prosthodontics, and Institute of Oral Bio-Science, School of Dentistry, Chonbuk National University) ;
  • Park, Charn-Woon (Department of Prosthodontics, and Institute of Oral Bio-Science, School of Dentistry, Chonbuk National University)
  • 유병일 (전북대학교 치과대학 치과보철학교실, 구강생체과학연구소) ;
  • 장문숙 (전북대학교 치과대학 치과보철학교실, 구강생체과학연구소) ;
  • 윤태호 (전북대학교 치과대학 치과보철학교실, 구강생체과학연구소) ;
  • 박주미 (전북대학교 치과대학 치과보철학교실, 구강생체과학연구소) ;
  • 박찬운 (전북대학교 치과대학 치과보철학교실, 구강생체과학연구소)
  • Published : 2006.06.30
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Abstract

Statement of problem. The success of the bonding between electroforming gold and resin is dependent on the surface-conditioning technique but its effective technique has net been studied widely. Purpose. The purpose of the study was to evaluate the bond strength between the electroforming gold and resin with varying the surface-conditioning technique. Materials and methods. Sixty rectangular shaped metal specimens were made and one side of each specimen were gold hard plated. The sand-blasted specimens were divided into four experimental groups with fifteen specimens in each group and were treated as follows. Group 1: Silicoating (Rocatec, 3M ESPE)+ Sinfony (3M ESPE), Group 2: SR Link+ SR Adoro (Ivoclar Vivadent), Group 3: Tin plating (Microtin, Danville Engineering)+ SR Link+ SR Adoro, Group 4: Tin plating (Micro tin, Danville Engineering)+ Silicoating (Rocatec)+ Sinfony. Shear bond strength at metal-resin interface were measured using universal testing machine. Energy Dispersive x-ray analysis was done and scanning electron microscope images were taken and observed. Results and Conclusion. The following conclusions were drawn. 1. The mean shear bond strength values in order were 11.69MPa (Group 2), 22.35MPa (Group 3), 22.40MPa (Group 1) and 27.71MPa (Group 4). There was no significant difference in Group 1, Group 3 and Group 4(P>0.05). 2. In the EDX line analysis, the Au was detected on the surface of all specimen. $SnO_2$ showed on the surface of Group 2 and $SiO_2$ was detected on the surface of Group 1. 3. Increasing of roughness by sandblasting(Group 2), formation of micro-irregularities and tin crystals by electrolytic tin plating(Group 3) and formation of surface irregularities and $SiO_2$ layer(Group 1,4) were observed in SEM photo. 4. Tin plating(Group 3) and Rocatec treatment(Group 1) showed clinically effective shear bond strength(>20MPa), but when the two surface conditioning method were used together higher bond strength were achieved.

Keywords

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