Imaging the Cemento-Enamel Junction Using a 20-MHz Ultrasonic Transducer. 2016

Kim-Cuong T Nguyen, and Lawrence H Le, and Neelambar R Kaipatur, and Paul W Major
School of Dentistry, University of Alberta, Edmonton, Alberta, Canada; Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada.

The cemento-enamel junction (CEJ), which is the intersection between enamel and cementum, is an important landmark in the diagnosis of periodontal disease. Pulse-echo ultrasound was used to image the CEJs of six porcine lower central incisors with a single 20-MHz transducer. A notch was longitudinally created on the enamel as a stable marker, from which the CEJ was measured. Data were acquired along the tooth's axis at 0.4-mm intervals. Time-distance data were bandpass-filtered to enhance signal-to-noise ratio and record density was increased fourfold to 0.1-mm spacing by a frequency-distance interpolation scheme. Reflections from the CEJ were unambiguously identified along with those from enamel, dentin and cementum. The notch-CEJ distances measured by the ultrasound and micro-computed tomography methods correlated strongly (r = 0.996, p < 0.05) and were in good agreement with the 95% lines of agreement between -0.49 and 0.17 mm, as statistically determined by Bland-Altman analysis. The results indicate the potential of ultrasound to be a reliable and non-ionizing technique to image the CEJ.

UI MeSH Term Description Entries
D005240 Feasibility Studies Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. Feasibility Study,Studies, Feasibility,Study, Feasibility
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D014159 Transducers Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed) Transducer
D014463 Ultrasonography The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz. Echography,Echotomography,Echotomography, Computer,Sonography, Medical,Tomography, Ultrasonic,Ultrasonic Diagnosis,Ultrasonic Imaging,Ultrasonographic Imaging,Computer Echotomography,Diagnosis, Ultrasonic,Diagnostic Ultrasound,Ultrasonic Tomography,Ultrasound Imaging,Diagnoses, Ultrasonic,Diagnostic Ultrasounds,Imaging, Ultrasonic,Imaging, Ultrasonographic,Imaging, Ultrasound,Imagings, Ultrasonographic,Imagings, Ultrasound,Medical Sonography,Ultrasonic Diagnoses,Ultrasonographic Imagings,Ultrasound, Diagnostic,Ultrasounds, Diagnostic
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D055114 X-Ray Microtomography X-RAY COMPUTERIZED TOMOGRAPHY with resolution in the micrometer range. MicroCT,Microcomputed Tomography,X-Ray Micro-CAT Scans,X-Ray Micro-CT,X-Ray Micro-CT Scans,X-Ray Micro-Computed Tomography,X-Ray Microcomputed Tomography,X-ray MicroCT,Xray Micro-CT,Xray MicroCT,Micro-CAT Scan, X-Ray,Micro-CAT Scans, X-Ray,Micro-CT Scan, X-Ray,Micro-CT Scans, X-Ray,Micro-CT, X-Ray,Micro-CT, Xray,Micro-CTs, X-Ray,Micro-CTs, Xray,Micro-Computed Tomography, X-Ray,MicroCT, X-ray,MicroCT, Xray,MicroCTs,MicroCTs, X-ray,MicroCTs, Xray,Microcomputed Tomography, X-Ray,Microtomography, X-Ray,Scan, X-Ray Micro-CAT,Scan, X-Ray Micro-CT,Scans, X-Ray Micro-CAT,Scans, X-Ray Micro-CT,Tomography, Microcomputed,Tomography, X-Ray Micro-Computed,Tomography, X-Ray Microcomputed,X Ray Micro CAT Scans,X Ray Micro CT,X Ray Micro CT Scans,X Ray Micro Computed Tomography,X Ray Microcomputed Tomography,X Ray Microtomography,X ray MicroCT,X-Ray Micro-CAT Scan,X-Ray Micro-CT Scan,X-Ray Micro-CTs,X-ray MicroCTs,Xray Micro CT,Xray Micro-CTs,Xray MicroCTs
D059629 Signal-To-Noise Ratio The comparison of the quantity of meaningful data to the irrelevant or incorrect data. Ratio, Signal-To-Noise,Ratios, Signal-To-Noise,Signal To Noise Ratio,Signal-To-Noise Ratios
D019237 Tooth Cervix The constricted part of the tooth at the junction of the crown and root or roots. It is often referred to as the cementoenamel junction (CEJ), the line at which the cementum covering the root of a tooth and the enamel of the tooth meet. (Jablonski, Dictionary of Dentistry, 1992, p530, p433) CEJ,Cementoenamel Junction,Cervix Dentis,Cementoenamel Junctions,Cervix, Tooth,Junction, Cementoenamel,Junctions, Cementoenamel
D023421 Models, Animal Non-human animals, selected because of specific characteristics, for use in experimental research, teaching, or testing. Experimental Animal Models,Laboratory Animal Models,Animal Model,Animal Model, Experimental,Animal Model, Laboratory,Animal Models,Animal Models, Experimental,Animal Models, Laboratory,Experimental Animal Model,Laboratory Animal Model,Model, Animal,Model, Experimental Animal,Model, Laboratory Animal,Models, Experimental Animal,Models, Laboratory Animal

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