Journal Articles / Article / International Journal / Peer reviewed / Published IKEEART-2017-372

Title:Release of fluoride from glass-ionomer-lined amalgam restorations in de-ionized water and artificial saliva
Authors:Dionysopoulos Pavlos (School of Dentistry, Aristotle University of Thessaloniki, Greece), Topitsoglou Vasiliki (School of Dentistry, Aristotle University of Thessaloniki, Greece), Dionysopoulos D., Koliniotou-Koumpia Eugenia (School of Dentistry, Aristotle University of Thessaloniki, Greece)
Department: Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Επιστημών Υγείας, Τμήμα Οδοντιατρικής
Language:English
Publ. Date:2007
Abstract:Purpose: The present study evaluated the amount of fluoride released from glass ionomer lined amalgam restorations in de-ionized water and artificial saliva. Materials and Methods: 40 human extracted molars were divided into 5 groups of 8 teeth each. Class V cavities (2x2x6mm) were pre- pared at the facial and lingual surfaces of the teeth and restored as follows: Group 1 with Dispersalloy amalgam ; Groups 2 and 4: Same as group 1 except that 1mm of photo-curing glass-ionomer liner Vit- rebond was placed at the axial wall before amalgam insertion; Groups 3 and 5: Same as group 1 except that 1mm of the traditional glass- ionomer liner GC Lining Cement was placed at the axial wall before amalgam insertion. The teeth of Groups 1,2 and 3 were placed in plas- tic tubes with 4ml of fresh fluoride-free de-ionized water, whereas the teeth of Groups 4 and 5 were placed in plastic tubes with 4ml of artifi- cial saliva. The samples were subjected to hydrothermal cycling (300x, 5 o /55 o C, 4C/min). At weekly intervals, each tooth was removed from its aqueous medium and transferred to another vial containing de-ionized water or artificial saliva. Fluoride release was measured 5 times at weekly intervals with a fluoride-ion selective electrode. Results: At 1 week and 4 weeks Vitrabond released significantly more fluoride than GC Lining Cement (p<0.05). Glass-ionomer lined amalgam restorations released significantly less fluoride in artificial saliva than in de-ionized water (p<0.05). Significance: The availability of fluoride ions around the margins of the glass-ionomer lined amalgam restorations may reduce the deve- lopment of secondary caries.
Subject:Dentistry and Oral Surgery
Related files:External link: Balkan Journal of StomatologyDownload fulltext
Published in: Balkan Journal of Stomatology, vol.11 [2007] p.175-180


 Record created 2017-03-16, last modified 2017-03-23


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