MICROLEAKAGE OF ENDODONTICALLY TREATED TEETH RESTORED WITH POSTS

A fluid filtration system using 15 psi of pressure on the penetrating fluid was used to quantify the amount of microleakage of a stainless-s teel post and a carbon-fiber post system, each placed with various cem ents. Statistical analysis showed that there was a significant differe nce in microleakage between the cements (p < 0.001), Zinc phosphate ce ment showed the most microleakage, whereas C & B Metabond cement showe d the least, There was no significant difference in microleakage betwe en the stainless-steel and carbon-fiber posts. The results of this stu dy showed that both posts, when cemented with dentin-bonding resin cem ents (C & B Metabond and Panavia-21), exhibited less microleakage than when cemented with non-dentin-bonding cements (glass ionomer and zinc phosphate).