Bioceramics has significantly higher success rates than amalgam , but they were statistically similar to intermediate restorative material ( IRM ) and Super ethoxybenzoic acid ( Super EBA ) when used as retro grade filling material s in apical surgery .
However , it seems that the high success rates were not solely attributable to the type of the root-end filling material s. The surgical/microsurgical techniques and tooth prognostic factors may significantly affect treatment outcome
Introduction Periradicular surgery involves the placement of a root-end filling following root-end resection , to provide an apical seal to the root canal system .
Historically several material s have been used in order to achieve this seal .
Recently a class of material s known as Bioceramics have been adopted .
Clinical and radiographic assessment of various predictors for healing outcome 1 year after periapical surgery.
This clinical study prospect ively evaluated the influence of various predictors on healing outcome 1 year after periapical surgery .  The study cohort included 194 teeth in an equal number of patients . Three teeth were lost for the follow-up ( 1.5 % drop-out rate ) .  Clinical and radiographic measures were used to determine the healing outcome . For statistical analysis , results were dichotomized ( healed versus nonhealed ) . The overall success rate was 83.8 % ( healed cases ) . The only individual predictors to prove significant for the outcome were pain at initial examination ( p=0.030 ) and other clinical signs or symptoms at initial examination ( p=0.042 ) , meaning that such teeth had lower healing rates 1 year after periapical surgery compared with teeth without such signs or symptoms . Logistic regression revealed that pain at initial examination ( odds ratio=2.59 , confidence interval=1.2 - 5.6 , p=0.04 ) was the only predictor reaching significance . Several predictors almost reached statistical significance : lesion size ( p=0.06 ) , retrofilling material ( p=0.06 ) , and postoperative healing course ( p=0.06 )
Bioceramics has significantly higher success rates than amalgam , but they were statistically similar to intermediate restorative material ( IRM ) and Super ethoxybenzoic acid ( Super EBA ) when used as retro grade filling material s in apical surgery .
However , it seems that the high success rates were not solely attributable to the type of the root-end filling material s. The surgical/microsurgical techniques and tooth prognostic factors may significantly affect treatment outcome
Introduction Periradicular surgery involves the placement of a root-end filling following root-end resection , to provide an apical seal to the root canal system .
Historically several material s have been used in order to achieve this seal .
Recently a class of material s known as Bioceramics have been adopted .