Preprint Article Version 1 This version is not peer-reviewed

Interfacial Gap Assessment of Two Dental Adhesives and Polymer-Based Resin Composites Using Cross-Polarization Optical Coherence Tomography

Version 1 : Received: 17 September 2018 / Approved: 18 September 2018 / Online: 18 September 2018 (08:52:54 CEST)

How to cite: Bakhsh, T.A.; Alturkstani, H.M.; Alharbi, R.; Alrefai, H.; Badeeb, T.; Altouki, N.; Jamleh, A. Interfacial Gap Assessment of Two Dental Adhesives and Polymer-Based Resin Composites Using Cross-Polarization Optical Coherence Tomography. Preprints 2018, 2018090334 (doi: 10.20944/preprints201809.0334.v1). Bakhsh, T.A.; Alturkstani, H.M.; Alharbi, R.; Alrefai, H.; Badeeb, T.; Altouki, N.; Jamleh, A. Interfacial Gap Assessment of Two Dental Adhesives and Polymer-Based Resin Composites Using Cross-Polarization Optical Coherence Tomography. Preprints 2018, 2018090334 (doi: 10.20944/preprints201809.0334.v1).

Abstract

Objectives: The current study aimed to compare the adaptation of the restored class-I cavities with two self-etch adhesives bonded to two resin composite using cross-polarization optical coherence tomography (CP-OCT). Materials and Methods: Cylindrical class-I cavities were prepared on twenty, extracted human premolars. Two self-etch adhesives; Clearfil SE bond 2 (SE; Kuraray Noritake Dental, Japan) and Bond Force (Palfique Bond) adhesive (PL; Tokuyama Dental, Japan) were used in this study that were bonded to either resin composites materials; Herculite XRV microhybrid dental composite (HRV; Kerr, Italy) or Estelite Alpha composite (ESA; Tokuyama Dental, Japan). The specimens were divided into four groups (n=5); SE-HRV, SE-ESA, PL-HRV and PL-ESA. All specimens were varnished and stored in distilled water for 24h. Then, they were submerged in a contrasting medium. After that, all groups were optically imaged under CP-OCT at every 250 µm interval distance. Later, image binarization and gap quantification were carried out using Image analysis software. Result: There was a significant difference between all the groups except between SE-ESA and PL-ESA (p = 0.51). The highest median gap % was seen in PL-HRV group followed by SE-ESA, PL-ESA and SE-HRV. Conclusion: Other than composite filler loading and adhesive formula, the interactions of the adhesive and composite copolymers have great influence on composite adaptation.

Subject Areas

Adhesive, Dentin, Composite, Adaptation, Tooth, Optical coherence tomography, Gap

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