Preliminary clinical evaluation of short fiber-reinforced composite resin in posterior teeth: 12-months report

S Garoushi, J Tanner, Pk Vallittu, L Lassila, S Garoushi, J Tanner, Pk Vallittu, L Lassila

Abstract

This preliminary clinical trial evaluated 12 month clinical performance of novel filling composite resin system which combines short fiber-reinforced composite resin and conventional particulate filler composite resin in high stress bearing applications. A total of 37 class I and II restorations (compound and complex type) were placed in 6 premolars and 31 molars. The restorations were reviewed clinically at 6 months (baseline) and 12 months using modified USPHS codes change criteria for marginal adaptation, post-operative sensitivity, pulpal pain and secondary caries criteria. Photographs and x-rays were obtained for restorative analysis. Results of 12 months evaluation showed 5 restorations having little marginal leakage (B score) and 1 patient had minor pulpal symptom and post-operative sensitivity (B score). No secondary caries or bulk fracture was detected. The majority of restorations exhibited A scores of the evaluated criteria. After 12 months, restorations combining base of short fiber reinforced composite resin as substructure and surface layer of hybrid composite resin displayed promising performance in high load bearing areas.

Keywords: Short fiber reinforced composite; clinical trial; posterior restoration..

Figures

Fig. (1)
Fig. (1)
Lower right second molar has been root canal treated. Gutta percha up to 3mm is removed from the canal orifices.
Fig. (2)
Fig. (2)
Placement of bulk short fiber composite according to an incremental technique
Fig. (3)
Fig. (3)
Dentin and enamel surfaces are bonded and bulk short fiber composite substructure applied and light cured in three layers.
Fig. (4)
Fig. (4)
The cavity is filled with restorative composites and the restoration is finished and adjusted in occlusion.
Fig. (5)
Fig. (5)
An X-ray showing the finished restoration with materials combination of bulk short fiber composite substructure and surface layer of particulate filler composite.

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