Clinical Performance of Short-Fiber Reinforced Composite in Deep Posterior Cavities: A 2-Year Randomized Controlled Trial

Dr. drg. Fitria Maharani, Sp.KG

doi:10.22146/ijrde.2027.01.002

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Original Research Inaugural Edition 2027

Clinical Performance of Short-Fiber Reinforced Composite in Deep Posterior Cavities: A 2-Year Randomized Controlled Trial

Dr. drg. Fitria Maharani, Sp.KG ¹ *

¹ Departemen Konservasi Gigi, Universitas Padjadjaran — Korespondensi: fitria.maharani@unpad.ac.id

Diajukan 14 Agt 2026

Diterima 14 Okt 2026

Diterbitkan 01 Jun 2027

Halaman 13-24

DOI: https://doi.org/10.22146/ijrde.2027.01.002

Abstrak

Tujuan: Menilai performa klinis 2 tahun dari restorasi resin komposit berpenguat serat pendek (SFRC) sebagai basis substruktur pada kavitas kelas II MOD yang luas dengan kehilangan cusp. Metode: Sebanyak 80 restorasi dievaluasi menggunakan kriteria FDI modifikasi pada baseline, 6 bulan, 12 bulan, dan 24 bulan. Hasil: Restorasi kelompok SFRC menunjukkan angka retensi 97.5% dengan fraktur marginal yang jauh lebih rendah dibandingkan kelompok komposit konvensional bulk-fill. Kesimpulan: Penggunaan basis serat pendek meningkatkan resistensi fraktur jangka panjang pada restorasi gigi posterior vital pasca-preparasi luas.

Kata Kunci: Kedokteran Gigi Biomimetik Serat Pendek Komposit Restorasi Posterior Uji Klinis

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Referensi

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3 Referensi

[1]

Garoushi S, Gargoum A, Vallittu PK, Lassila L. Short fiber-reinforced composite restorations: a review of the current literature. J Investig Clin Dent. 2018;9(3):e12330.

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INTRODUCTION

Biomimetic restorative dentistry aims to replicate the biomechanical, structural, and optical properties of intact natural tooth tissues [1]. Extensive Class II mesio-occluso-distal (MOD) cavities with cusp loss present a high risk of catastrophic vertical root fracture due to polymerization shrinkage stress and occlusal cyclic fatigue [2].

MATERIALS AND METHODS

Eighty vital posterior molars and premolars requiring extensive Class II MOD restorations were randomly assigned into two clinical groups (n = 40): bilayered restorations utilizing a discontinuous short-fiber reinforced composite (SFRC, everX Posterior) dentin substructure capped with nano-hybrid composite, versus conventional bulk-fill composite restorations. Modified USPHS/FDI clinical criteria were evaluated at baseline, 6, 12, and 24 months.

RESULTS

At the 24-month recall, the biomimetic SFRC substructure group demonstrated a 97.5% clinical survival rate with superior marginal adaptation and zero catastrophic cusp fractures compared to 87.5% in the control group (Table 1).

DISCUSSION

Randomly oriented millimeter-scale E-glass fibers within the semi-interpenetrating polymer network (semi-IPN) act as crack-stoppers that redirect and arrest propagating microcracks, mimicking the toughening mechanism of the dentinoenamel junction [1,3].

CONCLUSION

Short-fiber reinforced composite (SFRC) substructure bases significantly improve the 2-year clinical fracture resistance and marginal integrity of extensive posterior restorations.

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