engleski

Clinical evaluation of three fissure sealants: 24 month follow-up

Aim. The aim of this study was to compare 3 different materials for fissure sealing after the clinical use during the 24 month period, and to analyze the use of a flowable composites in combination with dentin adhesives as sealing materials. Study design. The research was conducted on 41 patients aged from 7-17, at which 100 permanent molars were sealed with 3 different sealing materials. Methods. In group A, 33 teeth were sealed with the material Helioseal Clear Chroma (Vivadent, Schaan, Liechtenstein), in group B, 33 teeth were sealed with the material Teethmate F1 (Kuraray, Kurashiki, Japan), and in group C, 34 teeth were sealed with the flowable composite Tetric Flow (Vivadent, Schaan, Liechtenstein). For the analysis of the degree of retention, following criteria were used: 0-complete retention, 1-loss of ⅓ of material, 2-loss of ⅔ of material, 3-complete loss of material. Clinical criteria for appearance of a new caries lesion included following values: Caries present (+) or caries absent (-). Results. After the 24 month period, the highest retention rate of complete retention was established for the material Tetric Flow of 76.5%, Helioseal Clear Croma had the retention rate of 66.7%, and Teethmate F1 had the complete retention rate of 60, 6%. The incidence of caries at Helioseal Clear Croma was 6.0%, at Teethmate F1 3%, with no statistically significant difference. In the group of teeth sealed with Tetric Flow, there was not a single case of caries noted down. Statistics. Chi-Square test was used for statistical analysis of retention rates between groups. There is no statistically significant difference in retention between these sealing materials after a 24 months period (p=0.656). The incidence of caries at Helioseal Clear Croma was 6.0%, at Teethmate F1 3%, with no statistically significant difference. Conclusions. The use of flowable composites as sealing materials is equal to other materials for fissure sealing. We surmise that flowable composites as sealants should be used in combination with a dentin bonding agents because they can improve the strength of the adhesive bonding to the enamel of the fissures and to reduce marginal microleakage, which should lead to the increasing of the retention rate. All examined sealing materials show good results of complete retention after an 24 month period, and good preventive action. Because of the variety of sealing materials on the market, flowable composites and adhesives, and everyday appearance of new materials, there is a need for further clinical and laboratory researches to establish the best technique and the best sealing material.

fissure sealing; retention rate; flowable compostite; adhesives

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