Clinical safety, quality and effect of resin infiltration for proximal caries

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ABSTRACT

Aim

Resin infiltration of proximal lesions is a new approach to stop caries progression. The aim of this clinical trial was to
assess its safety and quality, as well as the therapeutic effect.

Methods

In 47 children, adolescents and young
adults, ten dentists applied the infiltration material ICON (DMG, Germany) on initial proximal lesions according to the manufacturer's
instruction. One lesion with radiographic extension into enamel or the outer third of dentin per participant was allocated for the
treatment. The clinical safety and quality of resin infiltration were assessed 1 week, 6 months and 12 months after the treatment and the
evaluation of the therapeutic effect was analysed by pair-wise radiographs.

Results

The clinical safety and quality of the infiltration
were assessed in 45 individuals after 12 months. The test surfaces showed no relevant changes in clinical status, plaque accumulation
or gingival status (p > 0.05). A high quality of infiltration was found for the marginal adaptation. In contrast to the improvement of
colour at the one-week recall (p = 0.005), the infiltrated surfaces showed a statistically significant increase in the discoloration within the
following year (p = 0.014). Out of the 43 lesions which could be assessed radiographically, only two lesions showed progression to a
different score (4.7).

Conclusion

Resin infiltration can be considered a safe and effective treatment to reduce progression
of initial proximal caries.

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