EFFECT OF PARAPULPAL PINS ON CONSERVATIVE RESTORATION OF PULPLESS PREMOLARS

Conservative restoration of pulpless premolars with composite resins i s indicated in specific instances. The effect of parapulpal pins on ma rginal leakage and fracture resistance was evaluated in this in vitro study for composite resin restorations in 80 extracted, pulpless premo lars. Conservatively prepared pulpless premolars restored with composi te resin were resistant to occlusal forces and parapulpal pins were ef fective in reducing gingival marginal microleakage. Parapulpal pins si gnificantly improved the marginal seal of composite resin restorations in pulpless teeth when the gingival margins of the restoration were p laced in dentin.