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International Journal of Periodontics & Restorative Dentistry



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Int J Periodontics Restorative Dent 35 (2015), No. 3     28. Apr. 2015
Int J Periodontics Restorative Dent 35 (2015), No. 3  (28.04.2015)

Page 402-408, doi:10.11607/prd.2053, PubMed:25909528

The Effects of Scanning Electron Microscopy Desiccation Preparation on Demineralized Dentin Surfaces
Sterrett, John D. / Marks, Murray / Dunlap, John / Swann, Jerilyn / Schrock, Kathy
This study assessed the effect various scanning electron microscopy (SEM) desiccation preparation techniques have on a tufted collagen surface produced using an acid-burnished (rubbed) demineralization application technique. Citric acid- soaked cotton pellets (30%) were burnished on the dentin treatment region, rinsed in water, and then fixed. Four SEM desiccation preparation techniques were employed: (1) air-dried from glutaraldehyde; (2) air-dried from ethanol; (3) critical point dried from liquid carbon dioxide (control); or (4) air-dried from tetramethylsilane. Control specimens all displayed a characteristic tufted fibril surface. In all experimental groups fibrils collapsed, forming an intact, undulating nondescript surface monolayer. All air-drying SEM desiccation preparation procedures appear to cause artifactual distortion of a tufted dentin collagen surface.