Effect of silver nitrate on interfacial gap detection under polymeric dental restoration in CP-OCT imaging

Abstract

[Objective] The objective was to examine the effect of immersion of the polymeric-bonded specimens in silver-nitrate medium (SiNi) to detect miro-gaps under cross-polarization optical coherence tomography (CP-OCT). [Methodology] The twenty prepared specimens were imaged under CP-OCT (Cont group). Later, they were immersed in SiNi solution and re-imaged under CP-OCT (A-Si group) followed by cross-sectioning and imaging under a stereomicroscope. CP-OCT quantified data analyses were performed using macro-file plugged into an image analysis software. [Results] The obtained results were analyzed using Mann-Whitney test, A-Si group significantly different from Cont group (p<0.05). [Conclusion] SiNi has a great influence on micro-gap detection when using CP-OCT.