The effect of post space preparation on the apical seal of root fillings using chemically adhesive materials.

摘要: The effect on the apical seal of root filling teeth with two sealer cements that reacted chemically tooth structure was studied in vitro. In addition, leakage obturated these materials and subsequently prepared to accept a post tested. Ninety single-rooted mature apices were chemomechanically by stepback technique using files copious irrigation 2.5 per cent sodium hypochlorite. then randomly allocated six groups 15 each. Two filled lateral condensation gutta-percha one three cements: Tubliseal, radiopaque glass ionomer luting cement, Ketac Cem, active composite resin, Panavia Ex. Thirty minutes later, group for each material, space leaving 4-5 mm at apex. extent determined after immersion Indian ink 14 days. demineralized, dehydrated immersed methyl salicylate, which rendered them transparent, linear measurement dye penetration recorded. No statistically significant difference found between sealers those left intact. However, degree increased preparation Tubliseal groups, but reduced Ex group.