The effect of finishing sealant augmented margins in

Class V cavities 

Hamdi Mohammed-Al Tahawi, DDS,MScD,PhD,FICD,FADM, DICOI
Department of Removable Prosthodontics, King Saud University, College of Dentistry, P.O. Box60T69, Riyadh 11545, Saudi Arabia

Class V cavities in the buccal and tingual aspects of human posterior teeth were acid etched and restored in one of two ways. In the extended primer technique, the UV polymerized primer coat was extended 2-3 mm beyond the cavity, then finished back. In the butt-joint technique, the primer coat was extended to just below the cavosurface line angle. Eight specimens for each technique were prepared and tested. A surface micro-analyzer capable of detecting one microinch surface roughness was used to determine the variance in marginal smoothness; margins were also examined using a scanning electron microscope. No statistical difference in smoothness was detected between the two techniques.

Saudi Dental Journal 1989;1(3):82-85.