liners and base

glass ionomers

• were the only materials that yielded 100% retention rates in class V lesions without mechanical retention or enamel etching

glass ionomers

• generate low stresses on setting

glass ionomers

• have also been used with somewhat limited success as pit and fissure seal- ants. Because of the higher stresses

Composite restoratives

• undergo significant polymerization shrinkage, which creates stresses adjacent to the resin–dentin interface that can rupture den- tinal bonds in all but the smallest restorations.

mechanical retention and resistance form

• the hallmark of traditional amalgam preparation design

resin systems

• The most popular sealant techniques make use of ________ that can be applied to the occlusal surfaces of teeth.

sealants

• for the resin to penetrate into the pits and fis- sures and to seal these areas against oral bacteria and debris. A cross-section of a tooth to which a pit and fissure sealant

unfilled resin

• available as colorless or tinted transparent materials.

filled resin

• opaque and available either as tooth-colored or white materials.

adaptation of the sealant

• The success of the sealant technique is highly dependent on obtaining and maintaining an intimate _________ to the tooth surface.

low viscosity

• the sealants must be of relatively _______ so that they will wet the tooth and flow readily into the depths of the pits and fissures.

etching with acid

• To enhance wetting and mechanical retention of the sealant, the tooth surface is first conditioned by

unfilled resin

The physical properties of the sealants are closer to those of

preventive- resin restoration (PRR)

• If a dentist feels uncomfortable about sealing in a potential carious lesion and believes that a visual inspection of the potential lesion is required, another conservative approach can be taken that consists of a minimal cavity preparation and the placement of an enamel–dentin bonded composite restoration combined with a sealant application With such an approach, most of the occlusal surface is sealed. This restoration is called a