Paolantonio M, Fanali S, Nuzzoli A, Di Girolamo G
Istituto di Discipline Odontostomatologiche, Università degli Studi G. D'Annunzio, Chieti.
Minerva Stomatol. 1995 May;44(5):195-203.
The aim of present study was to evaluate the prognostic significance of the presence of Actinobacillus actinomycetemcomitans in subgingival plaque from young patients wearing fixed orthodontic appliances. Fifteen orthodontic patients, 3 males and 12 females, aged 10 to 27, systemically healthy, participated in the study. First examination took place in the spring of 1992 (T1) and consisted in the collection of clinical (pocket depth, PD; Gingival Index, GI; Plaque Index, P1I; Gingival Bleeding Index, GBI) and microbiological (Actinobacillus actinomycetemcomitans presence) parameters in 4-8 periodontal sites in each patient. The same clinical and microbiological parameters were collected again in the spring of 1994 (T2). Results showed that the presence of Actinobacillus actinomycetemcomitans in the examined periodontal sites underwent fluctuation, 25% of sites being positive for the sought after bacterium in T2 whereas the percentage of Actinobacillus actinomycetemcomitans positivity in T1 was 47.5% with a statistically significant difference (p < 0.005). On the contrary clinical parameters did not show significant modifications through the study period T1-T2. Differential analysis of clinical parameter modifications in relation to Actinobacillus actinomycetemcomitans positivity in T1 or Actinobacillus actinomycetemcomitans-positivity fluctuations in T1-T2 period did not evidence any significant difference among various microbiological conditions. The authors conclude that the mere presence of Actinobacillus actinomycetemcomitans in subgingival plaque from specific periodontal sites in young orthodontic patients does not seem sufficient to consider those sites at risk for periodontal destruction in the medium-short term.
本研究的目的是评估伴放线放线杆菌在佩戴固定正畸矫治器的年轻患者龈下菌斑中的存在对预后的意义。15名正畸患者参与了本研究，其中3名男性和12名女性，年龄在10至27岁之间，全身健康。首次检查于1992年春季（T1）进行，包括收集每位患者4至8个牙周部位的临床参数（牙周袋深度、PD；牙龈指数、GI；菌斑指数、P1I；牙龈出血指数、GBI）和微生物学参数（伴放线放线杆菌的存在情况）。1994年春季（T2）再次收集相同的临床和微生物学参数。结果显示，在所检查的牙周部位，伴放线放线杆菌的存在情况出现波动，T2时25%的部位该菌检测呈阳性，而T1时伴放线放线杆菌阳性率为47.5%，差异有统计学意义（p < 0.005）。相反，在整个T1 - T2研究期间，临床参数未显示出显著变化。对T1时伴放线放线杆菌阳性或T1 - T2期间伴放线放线杆菌阳性波动相关的临床参数变化进行差异分析，未发现不同微生物学状况之间存在任何显著差异。作者得出结论，在年轻正畸患者特定牙周部位的龈下菌斑中，仅存在伴放线放线杆菌似乎不足以认为这些部位在中短期内有发生牙周破坏的风险。
