Feiglin B, Reade P C
Oral Surg Oral Med Oral Pathol. 1979 Apr;47(4):364-8. doi: 10.1016/0030-4220(79)90261-5.
The distribution of systemically introduced 85Sr-labeled tracer microspheres to unexposed and previously exposed rat lower incisor tooth pulps was investigated. Fewer tracer microspheres entered the microcirculation of pulps that had been previously exposed as compared to control unexposed pulps. The presence of large numbers of dilated blood vessels in the apical tissues of teeth with exposed pulps was observed, and it is postulated that these vessels may be operating as arteriovenous anastomoses so that the pulpal microcirculation of teeth with inflamed pulps is bypassed by the tracer microspheres. The possible clinical significance of these findings is discussed.
研究了全身引入的85Sr标记示踪微球在未暴露和先前暴露的大鼠下切牙髓中的分布。与未暴露的对照牙髓相比，进入先前暴露牙髓微循环的示踪微球较少。观察到暴露牙髓牙齿根尖组织中有大量扩张的血管，据推测这些血管可能作为动静脉吻合支起作用，从而使示踪微球绕过炎症牙髓牙齿的牙髓微循环。讨论了这些发现可能的临床意义。
