In conclusion , MTA has a higher clinical success rate for direct pulp capping comparing to calcium hydroxide , and might be a suitable replacement for calcium hydroxide
Direct pulp capping is one of the most common dental practice s in endodontic therapy .
This systematic review and meta- analysis aim to determine whether the effect of mineral trioxide aggregate ( MTA ) and calcium hydroxide for direct pulp capping is different , as measured by the clinical and radiographic analysis .
Tunnel defects in dentin bridges: their formation following direct pulp capping.
This study was conducted to observe the formation and nature of tunnel defects in dentin bridges  , assess the nature of the associated soft tissue elements , and note the relationship of pulp inflammation and necrosis associated with these defects . A total of 235 teeth with class 5 cavity preparation exposures were r and omly distributed throughout the dentitions of 14 adult rhesus monkeys . Each pulp was exposed and left open to the oral microflora at one of four time intervals , flushed with saline , debrided , capped with one of two hard-set calcium hydroxide medicaments [ Ca(OH)2 ( Dycal or Life ) ] and restored with a dispersed-phase amalgam alloy . Observation times were 14 days , 5 weeks , and 1 and 2 years . A total of 192 dentin bridges formed against the Ca(OH)2 medicaments Life or Dycal in 235 pulp-capped teeth . Considering all four capping periods , 89 % of all dentin bridges contained tunnel defects ( 172 of 192 ) . Forty-one percent ( 78 ) of the 192 dentin bridges were associated with recurring pulp inflammation or necrosis and were always associated with the presence of inflammatory cells and stained bacterial profiles . This study demonstrates that a statistically significant number of dentin bridges contain multiple tunnel defects , most of which appear to remain patent . These patent tunnels fail to provide a hermetic seal to the underlying pulp against recurring infection due to microleakage . Most Ca(OH)2 medicaments have been reported to disintegrate and wash out after 6 months , leaving a void underneath the restoration and thereby a pathway for bacterial infection . This study reemphasizes the need to employ biologically relevant measures that will provide a long-term clinical seal against microleakage following direct pulp capping with Ca(OH)2 medicaments alone
In conclusion , MTA has a higher clinical success rate for direct pulp capping comparing to calcium hydroxide , and might be a suitable replacement for calcium hydroxide
Direct pulp capping is one of the most common dental practice s in endodontic therapy .
This systematic review and meta- analysis aim to determine whether the effect of mineral trioxide aggregate ( MTA ) and calcium hydroxide for direct pulp capping is different , as measured by the clinical and radiographic analysis .