title: Effect of a cordless retraction paste material on implant surfaces: an in vitro study.
abstract: Cordless retraction paste material for gingival retraction in implant dentistry has recently become of interest to the clinician. However, few studies have been conducted on the use of retraction pastes and their possible interaction with implant surfaces. This in vitro study evaluated the effect of a cordless retraction paste material, Expasyl® (Acteon), on TiUnite® (Nobel Biocare) implant surfaces. Three areas of the fixtures were evaluated before and after contact with the retraction paste using scanning electron microscopy to evaluate changes in surface topography and energy-dispersive spectroscopy to identify any surface chemistry modifications. Alteration of the initial surface after exposure to Expasyl® was identified, with the implant collar showing the most changes.
authors.affiliation: School of Dentistry, University of Otago, Dunedin, New Zealand.
authors.forename: Yin-Szu Madison
authors.initials: YS
authors.lastname: Chang
authors.forename: Vincent
authors.initials: V
authors.lastname: Bennani
authors.forename: Andrew
authors.initials: A
authors.lastname: Tawse-Smith
authors.forename: Liz
authors.initials: L
authors.lastname: Girvan
mesh_terms: D000704:Analysis of Variance; D015921:Dental Implants; D003760:Dental Impression Materials / Q000737:chemistry*; D003761:Dental Impression Technique / Q000295:instrumentation*; D060745:Gingival Retraction Techniques / Q000295:instrumentation*; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D013052:Spectrometry, X-Ray Emission; D013499:Surface Properties; D013997:Time Factors; D014025:Titanium / Q000737:chemistry
chemical_list: D015921:Dental Implants; D003760:Dental Impression Materials; D014025:Titanium