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Kakino, S., Kushibiki, S., Yamada, A., Miwa, Z, Takagi, Y. and Matsuura, Y. (2013) Optical Measurement of Blood Oxygen Saturation of Dental Pulp. ISRN Biomedical Engineering, 2013, Article ID: 502869. http://dx.doi.org/10.1155/2013/502869

has been cited by the following article:

• TITLE: Detection of Photoacoustic Signals from Blood in Dental Pulp

  AUTHORS: Azusa Yamada, Satoko Kakino, Yuji Matsuura

  KEYWORDS: Photoacoustic Sensing, Dental Root, Hemoglobin Detection, Near Infrared Laser

  JOURNAL NAME: Optics and Photonics Journal, Vol.6 No.9, September 30, 2016

  ABSTRACT: Photoacoustic waves from hemoglobin solutions in dental roots are detected by using a 1064-nm laser and an ultrasonic soft probe based on a composite transducer on the tooth surface. The high-frequency ultrasonic waves are detected from a tooth with a hemoglobin solution in the pulp cavity due to the large heat transfer coefficient and absorption coefficient of hemoglobin. The spectral intensities of frequency components higher than 1 MHz show good correlation with the hemoglobin solution concentrations, and maps of frequency spectra calculated by taking short-time Fourier transforms clearly exhibit the effect of absorbance in dental pulp.