EXPERIMENTAL GINGIVITIS IN YOUNG AND ELDERLY INDIVIDUALS
EXPERIMENTAL GINGIVITIS IN YOUNG AND ELDERLY INDIVIDUALS
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DOI：
10.1111/j.1600-051x.1975.tb01722.x
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发表时间：
1975-01-01
影响因子：
6.7
通讯作者：
THEILADE E
中科院分区：
文献类型：
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作者：
HOLM-PEDERSEN P;AGERBAEK N;THEILADE E
在21天的口腔卫生戒断期间，研究了年轻人和老年人实验性牙龈炎的发展。通过牙龈指数和放置在下侧切牙和尖牙牙龈沟入口处的滤纸条上的牙龈渗出物量的测量来评估牙龈的状态。通过菌斑指数和革兰氏染色牙菌斑涂片中微生物的差异计数来评估软沉积物。在牙菌斑生长结束时，对患者进行彻底的牙齿预防。在随后的口腔卫生控制期间，定期评估牙龈状况和菌斑。老年人在口腔不卫生期间牙龈炎的发展比年轻人更快、更严重。斑块积聚在老年人中更大。在斑块一致性方面也观察到明显的差异。然而，各种微生物的显微计数在整个斑块积累期间没有显示任何差异。当重新建立积极的口腔卫生时，两组的牙龈状态迅速恢复到实验前的水平。这项研究的结果表明，随着年龄的增长，宿主对菌斑微生物的反应发生了变化。
The development of experimental gingivitis was studied in young and elderly humans during a 21‐d period of oral hygiene abstention. The state of the gingiva was assessed by the Gingival Index and by measurements of the amount of gingival exudate on filter paper strips placed at the entrance of the gingival sulcus of the lower lateral incisors and cuspids. Soft deposits were assessed by the Plaque Index and by differential counts of microorganisms in gram stained smears of dento‐gingival plaque. At the end of the plaque growth period, the patients were given a thorough dental prophylaxis. Gingival condition and plaque were assessed at regular intervals during a subsequent period of controlled oral hygiene. The development of gingivitis during the oral hygiene abstention period was more rapid and more severe in old than in young individuals. Plaque accumulation was greater in the older persons. A definite difference in plaque consistency was also observed. However, microscopic counts of various types of microorganisms did not reveal any differences throughout the period of plaque accumulation. When active oral hygiene was reinstituted, the state of the gingiva rapidly returned to pre‐experimental levels in both groups. The findings of this study indicate that with age there is an altered host response to the microorganisms of the plaque.