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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/16629

Title: Use of a Chemically Activated Resin Modified Glass Ionomer as a Retrograde Filling Material: An In-Vitro Study.
Authors: Al-Sudani, D.
Saad, A.
Keywords: Amalgam; apical microleakage; glass ionomer; retrofilling
تاريخ النشر: 2001
Publisher: Pakistan Dental Association
Citation: Journal of the Pakistan Dental Association; 10(1): 25-28
Abstract: OBJECTIVE: A comparison was made between the apical microleakage of retrograde fillings with amalgam and with chemically activated resin-modified glass ionomer cement using a dye penetration technique. MATERIALS & METHODS: Forty instrumented and obturated human teeth were divided into four groups of 10 teeth each. Each root was apically resected. Nail polish was applied to the tooth surfaces of the first 3 groups, and then standardized apical cavity preparations were performed. The retropreparations were filled either with zinc free amalgam (group I), chemically activated resin-glass ionomer (group II), or only covered with nail polish (group III). In group IV, no retrofillings were made and no nail polish was applied. The specimens were suspended in 2% methylene blue dye for 7 days. The teeth were sectioned longitudinally and the depth of linear dye penetration was measured. RESULTS: The results demonstrated that group II significantly had the least microleakage of all (P < 0.05). CONCLUSION: It was concluded that chemically activated resin-glass ionomer should be considered as an alternative retrofilling material.
URI: http://hdl.handle.net/123456789/16629
ISSN: 1680-2292
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