1. Optical comparison between micro-CT and OCT in imaging of marginal composite adaptation; Observational study

    Optical comparison between micro-CT and OCT in imaging of marginal composite adaptation; Observational study

    Dental composite is the most used aesthetic restorative biomaterial worldwide. However, it undergoes polymerization shrinkage that could lead to loss of the interfacial seal between tooth and resin in some circumstances. This demands high-resolution imaging technologies to detect these defects. This study carried out a comparison between microcomputed tomography (micro-CT; Shimadzu, Japan) and swept-source optical coherence tomography (SS-OCT; Santec, Japan) in the detection of marginal adaptation defects at the tooth-resin interface. Unlike in micro-CT, it was possible to outline interfacial gaps along with tooth-resin interfaces with SS-OCT, which was attributed to the Fresnel diffraction of light. This in-vitro comparison demonstrates ...

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