A study on the pain-free pulp diagnosis based on the pulpal blood flow measured by a newly designed blood flowmeter for the dental pulp.

新型牙髓血流量计测量牙髓血流量的无痛牙髓诊断研究

• 批准号: 21592410
• 负责人: IKAWA Motohide
• 金额: $ 3.16万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21592410/
• 关键词: 歯内療法学; 歯髄; 血流; ヒト; レーザードップラー; 診断

The aim of this study was to improve the detection ability of human pulpal blood flow (PBF)using laser Doppler flowmeter (LDF). First, Blood flow velocities of the tooth pulp, fingertip, grip, forearm and gingiva of the volunteers were measured using a FFT frequency analyzer. The results showed that the frequency shift produced by Doppler effect with PBF ranged in low frequencies. Second, Two different frequency range of LDFs were used detect blood flow of fingertip, grip, forearm, gingiva and upper central incis or of the volunteers. The LDF with normal frequency rangerecorded obvious pulsation not more than half of the volunteers. However, the LDF with low frequency range recorded pulsasive signals from all the tooth pulp of the volunteers. The results of our study strongly clearly indicated that the modified laser Doppler flowmeter has higher detection ability than standard flowmeter. The increase of detection ability of PBF is considered to give benefit of pulp vitality diagnosis in aged subject.

本研究旨在提高激光多普勒血流仪（LDF）对人牙髓血流的检测能力。首先，使用FFT频率分析仪测量志愿者的牙髓、指尖、握柄、前臂和牙龈的血流速度。结果表明，PBF多普勒效应产生的频移范围在低频。第二，采用两种不同频率范围的LDFs检测志愿者指尖、握力器、前臂、牙龈和上中切缘的血流。正常频率范围的LDF记录到明显的搏动者不超过半数。然而，低频率范围的LDF记录了来自志愿者的所有牙髓的脉冲信号。我们的研究结果强烈清楚地表明，修改后的激光多普勒流量计具有更高的检测能力比标准流量计。认为PBF检测能力的提高有利于老年人牙髓活力的诊断。

项目成果

Interface oral health science 2011

• DOI: 10.1007/978-4-431-54070-0
• 发表时间: 2012
• 作者: K. Sasaki;O. Suzuki;N. Takahashi;P. Stashenko;M. Cambridge

Pulpal blood flow measurement using a laser Doppler flowmetry modified for very slow blood flow velocity

使用针对非常慢的血流速度进行修改的激光多普勒流量计进行牙髓血流测量

• 发表时间: 2011
• 作者: Motohide Ikawa;Xiaofu Qu;Hideji Komatsu and Hidetoshi Shimauchi
• 通讯作者: Hideji Komatsu and Hidetoshi Shimauchi

Pulpal blood flow measurement using a laser Doppler flowmetry modified for very slow blood flow velocity, Interface Oral Health Science 2011

使用针对非常慢的血流速度进行修改的激光多普勒流量计进行牙髓血流测量，Interface Oral Health Science 2011

• 发表时间: 2012
• 作者: Motohide Ikawa;Xiaofu Qu;Hideji Komatsu and Hidetoshi Shimauchi
• 通讯作者: Hideji Komatsu and Hidetoshi Shimauchi