Restoration of a Vital Tooth With Extensive Crown Destruction Using Glass Fiber and Polyethylene Fiber-reinforced Composite Resin: A Clinical Case
Conservative restorative dentistry has been evolving in the last 25 years, focusing mainly on the development of direct restorative materials. Resin-based composites remain an excellent conservative alternative for restoration of teeth with extensive caries lesions. Over time, several strategies have been proposed to improve the mechanical properties of these composites so that they can adequately withstand masticatory forces. Glass fiber-reinforced resin-based composites and their use in situations where there is great loss of tooth structure have gained popularity due to their favorable mechanical properties. Combined techniques with polyethylene fibers can further enhance their clinical performance. This study presents a brief review of their most important qualities and potential use in direct restorative procedures. In addition, a clinical case is described where a vital tooth with extensive coronal destruction was restored using polyethylene fibers embedded in glass fiber-reinforced flowable resin under resin-based composite. The reinforcement of both the remaining tooth structure and the restoration with fibers is a valid treatment option since the network structure formed by the fiber reinforcement can increase the longevity of the direct composite restorations. There are few reports in the literature describing the use of a combined technique using polyethylene fibers embedded in glass fiber-reinforced flowable resin under resin-based composite. Thus, clinical follow-up of this case is required.SUMMARY

Extensive caries lesion in tooth 30.

Initial periapical radiograph.

Absolute isolation and removal of caries-infected tissue.

Application of calcium silicate-based cement.

Selective enamel etching.

Application of self-etch adhesive system.

Application of glass fiber-reinforced flowable resin.

Polyethylene fibers embedded in glass fiber-reinforced flowable resin.

Application of bulk-fill flowable resin-based composite.

Completed application of a universal nano-hybrid resin-based composite.

Final result.

Final periapical radiograph.

Six-months’ follow-up clinical intraoral photograph.

Six-months’ follow-up periapical radiograph.
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