R. Liberman et al., REDUCTION OF MICROLEAKAGE IN CLASS-II COMPOSITE RESIN RESTORATIONS USING RETENTIVE PINS, Journal of oral rehabilitation, 23(4), 1996, pp. 240-243
The effect on microleakage of Bondent(R) parapulpal pins used in class
II composite resin restorations was evaluated in vitro. Bulk and incr
emental packing and polymerization techniques were compared, using pin
s anchored at the gingival cavity walls. Evaluation of microleakage wa
s carried out following cyclic load application and an extended thermo
cycling procedure by the assessment of dye penetration. The results sh
owed that the use of pins at the gingival wall of class II composite r
esin restorations provided significantly improved marginal sealing. Th
is procedure should, therefore, be regarded as an effective clinical p
ractice.