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International Poster Journal of Dentistry and Oral Medicine



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Int Poster J Dent Oral Med 13 (2011), No. 4     15. Dec. 2011
Silver Medal Int Poster J Dent Oral Med 13 (2011), No. 4  (15.12.2011)

Poster 555, Language: English

A New Dental Material for Remineralisation of Caries Lesion Used as a Root Canal Sealer
Mustafa, Ammar A. / Al-Khateeb, Khalid A. S. / Ismail, Ahmad Faris
Two experimental GIC-based root canal ‎sealers were prepared for the purpose of the ‎study with a main formula of boro-tri-fluoro-‎alumino-silicate (BTFAS) for the test-1 and ‎strontium fluoride SrF2 for test-2. Ninety ‎specimens of human sound teeth were embedded ‎into an acrylic mould. A conventional root canal ‎preparation without root canal filling was ‎performed. After sectioning the teeth ‎longitudinally, the internal side of the canal was ‎subjected to a demineralising solution to produce ‎a caries-like lesion. After the end of each ‎demineralizing period, the specimens were ‎examined under transversal micro-radiography ‎to have the (control radiographs). Then a film ‎layer of the experimental sealer test-1 was applied ‎to half of the specimens (n=45) and another film ‎of experimental sealer test-2 was applied to the ‎rest of the specimens (n=45). The test specimens ‎were divided into three time groups to be re-‎evaluated by transversal micro-radiography (test-‎radiographs) after 14 days, 28 days, and two ‎months. The specimens were further sectioned ‎and examined under SEM to support the ‎findings of transversal radio-micrograph. The ‎results illustrate a significant difference between ‎the two months test group and the control ‎radiographs but with no significant differences ‎among the other groups. It was obvious that the ‎secondary canals were ‎changed in texture which may be attributed to ‎precipitation of mineral ions by the glass Ionomer ‎sealer. The study needs further investigations to ‎prove the research hypothesis. ‎

Keywords: glass ionomer cement, remineralization, root canal sealer, secondary canals, demineralization

Poster Award: Silver Medal

17-19 February 2011
Malaysian Technology Expo MTE 2011, an International Expo on Technology, Invention & Innovation
Kuala Lumpur, Malaysia