The effect of age on bacterial penetration of radicular dentin.
The effect of age on bacterial penetration of radicular dentin.
复制标题
年龄对根部牙本质细菌渗透的影响。
DOI：
10.1016/j.joen.2008.10.004
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发表时间：
2009-01
影响因子：
4.2
通讯作者：
Fouad, Ashraf F.
中科院分区：
文献类型：
--
作者：
Kakoli, Payman;Nandakumar, Renu;Romberg, Elaine;Arola, Dwayne;Fouad, Ashraf F.
本研究的目的是确定患者年龄对牙本质小管内细菌渗透的流行率和深度的影响。根据患者年龄将五十六颗单根牙分为两组：年轻组（年龄18-25岁）和老年组（年龄≥60岁）。将牙齿用标准化的细菌负荷进行仪器化和接种，并孵育20天。进行组织学分析以通过计数侵入小管的数量和细菌在小管内的渗透深度来确定牙本质小管的感染程度。与老年组相比，年轻组中细菌侵入的小管数量显著增加（p = 0.014）。此外，年轻组的细菌侵入深度显著高于老年组（p = 0.033）。这些结果表明，牙本质小管的细菌感染发生在老年患者的程度较低。
The aim of this study was to determine the effects of patient’s age on the prevalence and depth of bacterial penetration inside dentinal tubules. Fifty-six single-rooted teeth were divided in two groups based on the patient’s age: young (ages 18–25) and old (age ≥60). Teeth were instrumented and inoculated with a standardized bacterial load and incubated for 20 days. Histological analysis was performed to determine the degree of infection of the dentinal tubules by counting the number of invaded tubules and the depth of penetration of bacteria inside the tubules. A significantly higher number of tubules were invaded by bacteria in the young group compared with the old group (p = 0.014). Also, the depth of invasion by bacteria was significantly higher in the young than in the old group (p = 0.033). These results suggest that bacterial infection of dentinal tubules occur to a lesser extent in older patients.
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影响因子：
--
作者：
SUNDQVIST, G
通讯作者：
SUNDQVIST, G
影响因子：
4.2
作者：
CARRIGAN, PJ;MORSE, DR;SINAI, IH
通讯作者：
SINAI, IH
影响因子：
7.6
作者：
AKPATA, ES;BLECHMAN, H
通讯作者：
BLECHMAN, H
影响因子：
4.2
作者：
Love, RM
通讯作者：
Love, RM
影响因子：
4.2
作者：
PASHLEY, DH
通讯作者：
PASHLEY, DH