Article citationsMore>>

Miwa, Z., Ikawa, M., Iijima, H., Saito, M. and Takagi, Y. (2002) Pulpal Blood Flow in Vital and Nonvital Young Permanent Teeth Measured by Transmitted Light Photoplethysmography: A Pilot Study. Pediatric Dentistry I, 24, 594-598.

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.