title: Design and testing of prototype handheld scanning probes for optical coherence tomography.
abstract: Three simple and low-cost configurations of handheld scanning probes for optical coherence tomography have been developed. Their design and testing for dentistry applications are presented. The first two configurations were built exclusively from available off-the-shelf optomechanical components, which, to the best of our knowledge, are the first designs of this type. The third configuration includes these components in an optimized and ergonomic probe. All the designs are presented in detail to allow for their duplication in any laboratory with a minimum effort, for applications that range from educational to high-end clinical investigations. Requirements that have to be fulfilled to achieve configurations which are reliable, ergonomic-for clinical environments, and easy to build are presented. While a range of applications is possible for the prototypes developed, in this study the handheld probes are tested ex vivo with a spectral domain optical coherence tomography system built in-house, for dental constructs. A previous testing with a swept source optical coherence tomography system has also been performed both in vivo and ex vivo for ear, nose, and throat-in a medical environment. The applications use the capability of optical coherence tomography to achieve real-time, high-resolution, non-contact, and non-destructive interferometric investigations with micrometer resolutions and millimeter penetration depth inside the sample. In this study, testing the quality of the material of one of the most used types of dental prosthesis, metalo-ceramic is thus demonstrated.
authors.affiliation: 3OM Optomechatronics Group, School of Engineering, Aurel Vlaicu University of Arad, Arad, Romania.
authors.forename: Dorin
authors.initials: D
authors.lastname: Demian
authors.affiliation: 3OM Optomechatronics Group, School of Engineering, Aurel Vlaicu University of Arad, Arad, Romania School of Physics, West University of Timisoara, Timisoara, Romania dumavirgil@yahoo.co.uk.
authors.forename: Virgil-Florin
authors.initials: VF
authors.lastname: Duma
authors.affiliation: Imaging Group, School of Dentistry, Victor Babes University of Medicine and Pharmacy of Timisoara, Timisoara, Romania.
authors.forename: Cosmin
authors.initials: C
authors.lastname: Sinescu
authors.affiliation: Imaging Group, School of Dentistry, Victor Babes University of Medicine and Pharmacy of Timisoara, Timisoara, Romania.
authors.forename: Meda Lavinia
authors.initials: ML
authors.lastname: Negrutiu
authors.affiliation: Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury, UK.
authors.forename: Ramona
authors.initials: R
authors.lastname: Cernat
authors.affiliation: Imaging Group, School of Dentistry, Victor Babes University of Medicine and Pharmacy of Timisoara, Timisoara, Romania.
authors.forename: Florin Ionel
authors.initials: FI
authors.lastname: Topala
authors.affiliation: 3OM Optomechatronics Group, School of Engineering, Aurel Vlaicu University of Arad, Arad, Romania.
authors.forename: Gheorghe
authors.initials: G
authors.lastname: Hutiu
authors.affiliation: Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury, UK.
authors.forename: Adrian
authors.initials: A
authors.lastname: Bradu
authors.affiliation: Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury, UK.
authors.forename: Adrian Gh
authors.initials: AG
authors.lastname: Podoleanu
mesh_terms: D017076:Computer-Aided Design; D003762:Dental Instruments; D004867:Equipment Design; D006804:Ergonomics; D006801:Humans; D041623:Tomography, Optical Coherence / Q000295:instrumentation*
keywords: Prototype; biomedical imaging; ceramic materials; dentistry; design; handheld scanning probes; optical coherence tomography; prosthesis; testing
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