Abstract
ObjectivesTo assess and to compare the effects of Gluma® Desensitizer (GDL) with an experimental glutaraldehyde and HEMA containing fumed silica dispersion (GDG) on dentin permeability using a chemiluminous tracer penetration test.Material and MethodsTwenty disc-shaped dentin specimens were dissected from extracted human third molars. The dentin specimens were mounted in a split chamber device for determination of permeability under liquid pressure using a photochemical method. Ten specimens were randomly selected and allocated to the evaluation groups Gluma® Desensitizer as aqueous solution and glutaraldehyde/HEMA as fumed silica dispersion, respectively. Dentin disc permeability was determined at two pressure levels after removal of smear with EDTA, after albumin soaking, and after application of the desensitizing agents. Two desensitizer-treated and rinsed specimens of each group were examined by scanning electron microscopy (SEM) for surface remnants.ResultsComparatively large standard deviations of the mean EDTA reference and albumin soaked samples permeability values reflected the differences of the dentin substrates. The mean chemiluminescence values of specimen treated with GDL and GDG, respectively, were significantly reduced after topical application of the desensitizing agents on albumin-soaked dentin. The effects of GDL and GDG on permeability were not significantly different. Treated specimens showed no surface remnants after rinsing.ConclusionsThe experimental desensitizer gel formulation reduced dentin permeability as effectively as the original Gluma® Desensitizer solution.
Highlights
Gluma® Desensitizer (GDL - Heraeus Kulzer, Hanau, Germany) has been introduced to the dental market more than a decade ago
Gluma® Desensitizer is a spin-off from the original Gluma Bonding system
PRYHPHQW RI ÀXLG ZLWKLQ WKH WXEXOHV DFWLQJ RQ mechanoreceptors of odontoblasts and provoking pain19-21 &RQVHTXHQWO\ DQ\WKLQJ UHGXFLQJ ÀXLG ÀRZ in such patent tubules should result in decrease of dentin sensitivity
Summary
Gluma® Desensitizer (GDL - Heraeus Kulzer, Hanau, Germany) has been introduced to the dental market more than a decade ago. PRYHPHQW RI ÀXLG ZLWKLQ WKH WXEXOHV DFWLQJ RQ mechanoreceptors of odontoblasts and provoking pain19-21 &RQVHTXHQWO\ DQ\WKLQJ UHGXFLQJ ÀXLG ÀRZ in such patent tubules should result in decrease of dentin sensitivity. Adverse effects such as burning of adjacent gingival areas or even ulceration of the gingiva after application of the desensitizing GDL solution may occur when the liquid is inappropriately applied and unintentionally stays in prolonged contact with gingival tissue. When applied professionally according to the manufacturer’s instructions such adverse effects can readily be avoided
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