Author/Authors :
ekici, mügem aslı gazi üniversitesi - dis hekimligi fakültesi - endodonti anabilim dali, Ankara, turkey , ömürlü, hüma gazi üniversitesi - dis hekimligi fakültesi - restoratif dis tedavisi anabilim dali, Ankara, turkey
Abstract :
OBJECTIVE: To compare the physical properties and microleakage of zinc oxide eugenol-based experimental sealers containing propolis (PS) with Grossman sealer and AH Plus. MATERIALS AND METHOD: Propolis collected from Tekirdağ area (Thrace region, Turkey) was used. Experimental sealers containing propolis at different ratios were prepared [5% (PS5), 10% (PS10), 25% (PS25), 50% (PS50)], and compared with Grossman sealer and AH Plus. The film thickness, flow, radioopacity, setting time, solubility and pH of the aqueous extracts were evaluated according to the ISO 6876/2001 standards. The microleakage was evaluated using the computerized fluid filtration method. Friedman and Kruskal-Wallis tests were used for the statistical analysis of the pH and the remaining data, respectively (α=0.05). RESULTS: Except for the solubility, the physical properties of the PSs were compatible with the ISO 6876/2001 standards. The solubility of the PSs was similar to the Grossman sealer (p 0.05); but significantly greater than the AH Plus (p 0.05). Regarding the inter-group comparison of the pH, the aqueous extracts of all PSs had either similar or significantly greater pH compared with those of the Grossman sealer or AH Plus (p 0.05). Significant differences were also found in the intra-group analyses (p 0.05) with a general tendency of an increase in the pH values with time. As for the microleakage, the highest values were seen in PS5 and the Grossman sealer (p 0.05; the two were similar), and the lowest values were seen in AH Plus; PS10, PS25 and PS50 had intermediate microleakage. CONCLUSION: The PSs are promising for possible future clinical use as most of their physical properties were in accordance with the ISO 6876/2001 standards. Besides, their microleakage values were less than the Grossman sealer, and their aqueous extracts revealed favorable pH.
