Clinical Evaluation of Extensive Direct Composite Restorations With Polyethylene Fiber

Kafkas University

Status: Completed

Conditions: Dental Caries Extending Into Dentin

Treatments: Device: Genial Posterior Composite; Device: Genial Posterior Composite with Polyethylene Fiber

Study type: Interventional

Funder types: Other

Identifiers

NCT04612543

KafkasU

Details and patient eligibility

About

The aim of this clinical trial was to compare the clinical performances of composite resin restorations with/without the polyethylene fiber to the first permanent molar teeth with extensively carious pediatric patients. A total of 75 restorations with (FC; n=38)or without (C; n=37) fiber were placed in the first permanent molar teeth.

Restorations were evaluated at baseline-6-12-18 months according to the modified-USPHS criteria. Data were analyzed with Chi-Square and Cochran's Q (p<0.05).

Full description

Fiber reinforced composite restorations developed in recent years have been presented to improve the negative properties of composite resin systems applied by the traditional method thanks to the fact that the fibers act as a crack stopper, reduce polymerization shrinkage by decreasing the the mass of composite resin material between the remaining dentin structure and the fiber. Many authors having conducted tremendous experience in this field of research have reported that the polyethylene fiber is an innovative approach because it not only increases the flexural strength but also improves fracture toughness. Its woven fiber orientation provides the stresses to be dispersed throughout the restoration, and therefore reinforces the restoration and the remaining tooth structure in multiple directions.

Enrollment: 75 patients

Sex: All

Ages: 9 to 14 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• no hypoplasia or any tissue abnormality in the teeth,
• deep dentin caries with three tubercle loss in the teeth, need of three surface restorations with coverage of at least two adjacent cusps.
• no evidence for pulpal complications
• in occlusion

Exclusion criteria

• partly erupted teeth;

  -.absence of adjacent and antagonist teeth

• poor periodontal status;

• adverse medical history;

• potential behavioral problems.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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75 participants in 2 patient groups

Genial Posterior Composite with Polyethylene fiber

Active Comparator group

Description:

The enamel and dentin were conditioned with bonding procedure.After bonding procedures, remaining tooth composite resin walls were created and cured for 20 s. Prepared ribbond fiber pieces, 2-mm-wide approximately 12mm-long, (Ribbond Thinner, Higher, Modulus - Ribbond Inc,Seattle) were wetted with an unfilled resin for 2 minutes at a non-light environment. The inner surfaces of the prepared class I cavity were lined with flowable resin. After removing the excess resin, pre-wetted polyethylene fiber was condensed circumferentially and embedded with a hand instrument into the bed of unpolymerized flowable composite and then polymerized for 20 seconds with Light Emitting Diodes. After curing for 20 s, composite resin was applied to the rest of the cavity incrementally, each increment was cured for 20 seconds. Finally, the restoration was shaped with finishing diamonds and silicon instruments.

Treatment:

Device: Genial Posterior Composite with Polyethylene Fiber

Device: Genial Posterior Composite

Genial Posterior Composite

Active Comparator group

Description:

The enamel and dentin were conditioned with bonding procedure using an applicator, left undisturbed for five to 10 seconds, and then dried thoroughly for five seconds with oil-free air under air pressure, Genial Direct Posterior resin was applied with the incremental technique (2 mm thick layers) and light-cured for 20 seconds. Finally, the restoration was shaped with finishing diamonds and silicon instruments

Treatment:

Device: Genial Posterior Composite with Polyethylene Fiber

Device: Genial Posterior Composite