Special Section on Selected Topics in Biophotonics: Optical Coherence Tomography and Medical Imaging Using Diffuse Optics

Feasibility of fiber optic displacement sensor scanning system for imaging of dental cavity

[+] Author Affiliations
Husna Abdul Rahman

University of Malaya, Department of Electrical Engineering, Faculty of Engineering, Kuala Lumpur 50603, Malaysia

University of Malaya, Photonics Research Centre, Department of Physics, Faculty of Science, Kuala Lumpur 50603, Malaysia

Universiti Teknologi MARA, Faculty of Electrical Engineering, Shah Alam 40450, Malaysia

Adi Izhar Che Ani

University of Malaya, Department of Biomedical Engineering, Faculty of Engineering, Kuala Lumpur 50603, Malaysia

Universiti Teknologi MARA Pulau Pinang, Faculty of Electrical Engineering, Jalan Permatang Pauh, Permatang Pauh 13500, Pulau Pinang, Malaysia

Sulaiman Wadi Harun

University of Malaya, Department of Electrical Engineering, Faculty of Engineering, Kuala Lumpur 50603, Malaysia

University of Malaya, Photonics Research Centre, Department of Physics, Faculty of Science, Kuala Lumpur 50603, Malaysia

Moh. Yasin, Retna Apsari

Airlangga University, Department of Physics, Faculty of Science and Technology, Surabaya 60115, Indonesia

Harith Ahmad

University of Malaya, Photonics Research Centre, Department of Physics, Faculty of Science, Kuala Lumpur 50603, Malaysia

J. Biomed. Opt. 17(7), 071308 (May 21, 2012). doi:10.1117/1.JBO.17.7.071308
History: Received December 27, 2011; Revised March 6, 2012; Accepted March 8, 2012
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Abstract.  The purpose of this study is to investigate the potential of intensity modulated fiber optic displacement sensor scanning system for the imaging of dental cavity. Here, we discuss our preliminary results in the imaging of cavities on various teeth surfaces, as well as measurement of the diameter of the cavities which are represented by drilled holes on the teeth surfaces. Based on the analysis of displacement measurement, the sensitivities and linear range for the molar, canine, hybrid composite resin, and acrylic surfaces are obtained at 0.09667mV/mm and 0.45 mm; 0.775mV/mm and 0.4 mm; 0.5109mV/mm and 0.5 mm; and 0.25mV/mm and 0.5 mm, respectively, with a good linearity of more than 99%. The results also show a clear distinction between the cavity and surrounding tooth region. The stability, simplicity of design, and low cost of fabrication make it suitable for restorative dentistry.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Husna Abdul Rahman ; Adi Izhar Che Ani ; Sulaiman Wadi Harun ; Moh. Yasin ; Retna Apsari, et al.
"Feasibility of fiber optic displacement sensor scanning system for imaging of dental cavity", J. Biomed. Opt. 17(7), 071308 (May 21, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.7.071308


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