Zissopoulos S, Midda M
Bristol Dental School and Hospital, England.
Newsl Int Acad Periodontol. 1991 Dec;1(2):6-12.
There seems to be a difference in the susceptibility, prevalence and severity of periodontal disease between children and adults. These differences could be due to; composition of plaque, host response or tissue alterations occurring with age. One of the micro-organisms suspected to play a role in the initiation of periodontal disease is the spirochete. A quick and simple way to observe spirochetes is via dark-field microscopy. The present study sample subgingival plaque from the crevices of 6 prepubertal and 6 postpubertal children and observed it under darkfield microscopy. The technique did not involve dispersion. The results showed a higher percentage of spirochetes for the postpubertal group (15.19% in the prepubertal and 21.62% in the postpubertal) but statistical analysis failed to show any significant difference. The small size of the sample, the variety in the technique and the clinical measurements influence the result.
儿童和成人在牙周病的易感性、患病率和严重程度方面似乎存在差异。这些差异可能是由于；菌斑组成、宿主反应或随年龄发生的组织改变。一种被怀疑在牙周病起始中起作用的微生物是螺旋体。观察螺旋体的一种快速简单方法是通过暗视野显微镜检查。本研究从6名青春期前和6名青春期后儿童的龈下菌斑中取样，在暗视野显微镜下观察。该技术不涉及分散。结果显示青春期后组的螺旋体百分比更高（青春期前为15.19%，青春期后为21.62%），但统计分析未能显示出任何显著差异。样本量小、技术多样性和临床测量会影响结果。
