Blood Flow in the Dental Pulp of the Dog.∗
Blood Flow in the Dental Pulp of the Dog.∗
复制标题
狗牙髓中的血流。*
DOI：
10.3181/00379727-116-29443
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发表时间：
1964
影响因子：
--
通讯作者：
E. Grim
中科院分区：
文献类型：
--
作者：
Maukice Meyer;D. Weiner;E. Grim
摘要 使用同位素分馏技术研究了流向幼犬犬齿的牙髓血流，该技术涉及确定流向牙齿的心输出量的分数分布。心输出量由同位素稀释曲线确定。将赛洛卡因和含有不同量肾上腺素（5-20 μg）的赛洛卡因分别渗透到犬齿的根尖处。同一牙弓中的对侧牙齿作为对照。对照牙齿中牙髓组织的平均流量为 0.98 cc min-g。只在根尖处渗透了利多卡因的牙齿中的流动与对照相比没有显着差异。然而，渗透有 5-20 μg 肾上腺素的犬齿中的流量平均减少约 30%。这种流量变化与注射肾上腺素的剂量显着相关。
Summary Pulpal blood flow to the canine teeth of young dogs was studied using the isotope fractionation technique, which involves determining the fractional distribution of the cardiac output to the teeth. Cardiac outputs were determined from isotope dilution curves. Xylocaine and xylocaine with varying amounts of epinephrine (5-20 μg) were infiltrated separately at the apex of a canine tooth. The contralateral tooth in the same arch served as the control. The average flow in the control teeth was 0.98 cc min-g of pulp tissue. Flow in teeth which had xylocaine alone infiltrated at the apex showed no significant difference from the controls. However, flow in those canine teeth which had 5-20 μg of epinephrine infiltrated decreased an average of about 30%. This change in flow was significantly correlated to the dose of epinephrine injected.