Confocal Laser Scanning Microscopy Investigation of the Penetration of Adhesives and Sealant Resins Into FissuresReport as inadecuate




Confocal Laser Scanning Microscopy Investigation of the Penetration of Adhesives and Sealant Resins Into Fissures - Download this document for free, or read online. Document in PDF available to download.

Acta stomatologica Croatica, Vol.37 No.3 September 2003. -

The process of fissure sealing should ideally avoid the delivery of any microorganism subtrate into the depths of plaque-retentive pits and fissures. Up to now, available sealing materials have been found to not always completely penetrate to the bottom of deep and medium deep fissures of type I (slit-like) or type IK (ampoule-like). Due to the low viscosity and exellent wetting properties of current dentin adhesive systems, they were used in combination with sealant materials in order to improve the filling of fissures.

The purpose of this experimental study was to evaluate whether penetration by filled sealing materialsinto fissures of human molars could be improved by combining them with enamel-dentin adhesives.

The investigation was carried out on 20 extracted clinically caries-free, human premolars and molars. Cleaning was carried out with an air polishing device for 60 seconds. In the test groups, each containing ten teeth, a two material combination of an enamel-dentin adhesive (Prime&Bond NT) and a filled sealing resin was used to seal the fissures (Dyrect SEal). In the control groups (ten teeth) only the filled sealing material without an initial adhesive was applied. The scaled teeth were sectioned into slices of 700 micrometers in thickness (totla of 53 slices), parallel to the tooth axis. Evaluation under CLSM was carred out.

In the experimental group, 12 deep fissures were completely filled, 9 were not filled, 9 were filled with bubbles of air, 1 wide fissure was filled. In the control group, 6 deep fissures were filled, 19 were not filled, 5 were filled with the bubbles of air and 6 wide fisures were filled. We used Chi-sqouare test as a statistic method and later Yatcs correction p = 0.0465. Differences between the control and experimental group are significant.

Use of enamel-dentin-adhesive system in fissure sealing have some advantages.



Author: S. Kobašlija - A. Huseinbegović - M. Selimović-Dragaš - T. Pioch -

Source: http://hrcak.srce.hr/



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