The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Effects of conventional and self-etching adhesive systems on bond strength of orthodontic attachments bonded to erupted and unerupted teeth

치아 맹출 유무에 대한 자가부식 접착제에 의한 교정용 부착장치의 접착강도

  • Nur, Metin (Karadeniz Technical University, Department of Orthodontics) ;
  • Uysal, Tancan (Department of Orthodontics, Faculty of Dentistry, Erciyes University) ;
  • Yesilyurt, Cemal (Karadeniz Technical University, Department of Operative Dentistry) ;
  • Bayram, Mehmet (Karadeniz Technical University, Department of Orthodontics)
  • Received : 2010.01.12
  • Accepted : 2010.05.31
  • Published : 2010.08.30
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Abstract

Objective: The aim of this study was to evaluate and compare the shear bond strength (SBS) and failure-mode of orthodontic buttons bonded to erupted and unerupted teeth with conventional and self-etching adhesive systems. Methods: Eighty-four erupted and 84 unerupted, human third-molar teeth were used. For both groups, the buccal surfaces of each tooth were assigned one of the following type of adhesive systems (n = 12). A, Conventional systems: 1, Transbond XT (3M Unitek, Monrovia, CA, USA); 2, Prime & Bond NT (Dentsply/Caulk, Milford, USA); 3, Single Bond (3M ESPE, Minnesota, USA); and B, Self-etching adhesives; 4, Clearfil SE Bond (Kuraray, Okayama, Japan); 5, Transbond Plus (3M Unitek, Monrovia, CA, USA); 6, Clearfil S3 (Kuraray, Tokyo, Japan); 7, G Bond (GC, Tokyo, Japan). The SBSs of the attachments and the adhesive remnant index (ARI) scores were recorded. Data were analyzed with analysis of variance (ANOVA), independent-sample t-test and chi-square tests. Results: When the SBSs of erupted and unerupted teeth were compared, only the Clearfil-SE Bond and G-Bond were significantly different. Bond strengths of all adhesive systems were higher in unerupted teeth than erupted teeth, except the Single-Bond system. Conclusions: When using conventional adhesives, bonding to erupted and unerupted teeth may not be significantly different. However, clinicians need to take into consideration the types of self-etching systems before usage.

이번 연구의 목적은 맹출 또는 미맹출된 치아에 교정용 버튼을 부착 후 자가부식 접착제(self-etching adhesive)의 사용 유무에 대한 전단결합강도(shear bond strength)와 탈락모드를 비교하고자 함이다. 각각 84개의 맹출 또는 미맹출된 제3대구치를 사용하였다. 각각 치아의 협측면을 다음의 부착시스템 그룹으로 할당하였다. A, 기존방식: 1, Transbond XT (3M Unitek); 2, Prime & Bond NT (Dentsply/Caulk); 3, Single Bond (3M ESPE); B, 자가부식 접착제; 4, Clearfil SE Bond (Kuraray); 5, Transbond Plus (3M Unitek); 6, Clearfil S3 (Kuraray); 7, G Bond (GC). 부착물의 전단강도와 접착제 잔류지수를 측정하였으며 결과값은 ANOVA와 independent t-test 및 chi-square 검증을 통해 분석되었다. 맹출 또는 미맹출된 치아의 전단결합강도를 비교하였을 때 Clearfil SE와 G Bond에서 유의한 차이가 관찰되었다. Single Bond를 제외한 모든 접착시스템에서 맹출보다는 미맹출 치아면에서 높은 접착강도가 관찰되었다. 기존 접착제를 사용하는 경우 맹출 또는 미맹출 치아에 대한 접착강도에는 차이가 없을 수 있다. 그러나 임상의사는 사용 전에 self-etching system의 종류를 고려할 필요가 있다.

Keywords

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  1. Shear bond strength of orthodontic attachments bonded to impacted teeth under in vivo and in vitro conditions vol.17, pp.3, 2010, https://doi.org/10.1111/ocr.12043