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Clin Oral Investig. 2013 Apr;17(3):711-6. doi: 10.1007/s00784-012-0740-2. Epub 2012 May 3.

Efficacy of a moisture-tolerant material for fissure sealing: a prospective randomised clinical trial.

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Department of Conservative and Preventive Dentistry, Dental Clinic of the Justus Liebig University, Schlangenzahl 14, 35392, Giessen, Germany.



Fissure sealings offer nearly complete protection against fissure caries, provided that they are adequately applied, for composite-based sealants with sufficient moisture control. This is not always attainable, particularly in children with low compliance. To counter this problem, a moisture-tolerant sealant has been developed. The present randomised clinical trial compared such a moisture-tolerant material (Embrace) with a conventional sealant (Helioseal).


In 55 participants (mean age, 10 ± 3 years), corresponding molar pairs were sealed with either Embrace or Helioseal. Retention, quality of sealing, and caries were clinically examined, both tactilely and visually, immediately and after 1 year.


After 1 year, 93% of Helioseal sealings were complete, whereas 60% of Embrace sealings showed partial and 13% complete loss. The surface quality of Embrace was significantly worse than that of Helioseal. After the use of Embrace, the sealant margin was noticeable as a slight (distinct) step in 36% (15%). The visual (tactile) examination showed a rough surface in 78% (33%) in the case of Embrace. The Helioseal surfaces were shiny (smooth) in all cases (all differences between Helioseal and Embrace, p ≤ 0.001). Caries was found only after the use of Embrace (4%, n.s. compared to Helioseal).


The moisture-tolerant material Embrace was distinctly inferior to Helioseal because Embrace showed weaknesses in retention and surface quality.


Even if a moisture-tolerant sealant would be desirable in particular for children with low compliance, the tested material does not represent an alternative to the standard preparation.

[Indexed for MEDLINE]

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