Non-invasive recording of blood flow in human dental pulp.
Non-invasive recording of blood flow in human dental pulp.
复制标题
无创记录人体牙髓中的血流。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
L. Edwall
中科院分区：
文献类型：
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作者：
B. Gazelius;L. Olgart;Björn Edwall;L. Edwall
本文应用激光多普勒血流仪对人牙进行了测量，以研究能否记录牙髓中的血流。在敏感的，完整的门牙的输出信号Ironi的流量计的水平是清楚地区分从相邻的非敏感或牙髓切除牙齿。心跳同步振荡，这是目前在记录信号从正常的牙齿，不存在于非活髓牙。局部注射利多卡因（20 mg/ml）和肾上腺素（12.5 μg/ml）可导致健康牙齿的血流测量值显著且持久降低。振荡的幅度也降低了。重复记录显示出良好的重现性。因此，可以通过锡的非侵入性方法评估牙齿中血液（低）的变化。该仪器是一个很有前途的工具，在临床评价牙髓活力外伤后。
Laser Doppler flowmetry was applied to human teeth to study whether blood How in the pulp can be recorded. In sensitive, intact incisors the level of the output signal Ironi the flowmeter was clearly distinguishable from that obtained in adjacent nonsensitive or pulpeetomized teeth. Heart beat synchronous oscillations, which were present in the recording signal from normal teeth, were absent in nonvital teeth. Local injection of lidocaine (20 mg/ml) with adrenaline (12.5 μg/ml) caused a pronounced and long-lasting reduction of the flowmetric values in healthy teeth. The oscillations were also reduced in amplitude. Repeated recordings showed good reproducibility. Thus, changes in blood (low may be assessed in a tooth by tin's non-invasive method. The instrument is a promising tool in the clinical evaluation of pulp vitality following traumatic injuries.