The utilization of the displacement sensor system to estimate cavities in dentures based on optical imaging

摘要

The paper proposes an intensity modulation technique based on micro displacement sensor to image cavities in denture material. The cavity imaging for various types of denture materials, as well as the measurement of the diameter of the cavities are presented. The samples used in this study were Acrylic Denture, Nano Hybrid Composite, Varplast, Nano Filler, with a cavity diameter of 5mm per sample. Based on the analysis, the measurement of cavity diameter using the analog method resulted in 5.00 mm for Acrylic Denture, Nano Hybrid Composite, Varplast samples, and 5.50 mm for Nano Filler, with 97.65% of maximum accuracy. The feasibility of micro-displacement sensor system with fiber bundle 16 receivers using the optical imaging technique with a displacement order of 500 μm was able to measure the width of the sample cavity in denture materials with accuracy approximately between 89%-99.48%. High stability, the simplicity of design, and low cost of fabrication make the micro displacement sensor system feasible to be applied in dentistry, especially for measuring and imaging cavities on denture materials.