Comparative evaluation of microleakage of two self-etching dentin bonding agents on primary and permanent teeth. An in vitro study

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ABSTRACT

Aim

Conservative procedures using dentin bonding agents are one of the important aspects of paediatric dental
practice. The objective of this in vitro study was to comparatively evaluate the microleakage of two self etching adhesives in
primary and permanent teeth.

Methods

Sixty-four human anterior teeth (thirty-two primary and thirty-two
permanent) were divided into four groups: primary teeth bonded using a 6th generation (Contax) bonding agent; permanent
teeth bonded using a 6th generation (Contax) bonding agent; primary teeth bonded using a 7th generation (Clearfil S3)
bonding agent; permanent teeth bonded using a 7th generation (Clearfil S3) bonding agent. A Class V cavity was prepared
on all samples and were restored with composite resin as per manufacturers' instruction. After thermocycling, the teeth were
stained with methylene blue, sectioned, and measured for microleakage.

Results

It was found a statistically significant
difference in microleakage between incisal and gingival margins in each of the study group.

Conclusion

Clearfil S3 (7th
generation) bonding agent could be of greater advantage in paediatric dentistry than Contax (6th generation) because of its
fewer steps and lesser microleakage in both primary and permanent teeth.

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