Novaes Júnior Arthur Belém, de Souza Sérgio Luís Scombatti, Taba Mário, Grisi Marcio Fernando de Moraes, Suzigan Luciane Cristina, Tunes Roberta Santos
Department of Bucco-Maxillo-Facial Surgery, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Braz Dent J. 2004;15(1):41-5. doi: 10.1590/s0103-64402004000100008. Epub 2004 Aug 16.
Gingival inflammation is clinically characterized by gingival redness, swelling and increased tendency of bleeding of the soft tissue. Bacterial biofilm is the etiological agent. If, at this stage, the bacterial biofilm is removed and appropriate control methods are applied, remission of gingival inflammation occurs. This study evaluated the effectiveness of a single session of ultrasonic prophylaxis for the reduction of gingivitis in an adolescent population using the Plaque Index (PI) and Gingival Index (GI). The study sample consisted of 15 male adolescent students selected at a dentist's office of a public high school. Prior to treatment (baseline), plaque index (PI) and bleeding on probing (BOP) were recorded. The patients then received oral hygiene instructions and ultrasonic prophylaxis. Follow-up exams were made 15 and 30 days after the ultrasonic prophylaxis, again recording PI and BOP. The data were analyzed by the Student's t-test for dependent samples. Correlation analysis between presence of biofilm and bleeding on probing was also made using the Pearson correlation test. There was a statistically significant decrease in the plaque index and bleeding on probing between baseline and examinations at both 15 days and 30 days (p<0.05). However, the difference between the means at 15 and 30 days was statistically similar. The correlation analysis showed correlation between both parameters (p<0.05). The results indicate that a single session of ultrasonic prophylaxis associated to oral hygiene instructions is efficient to reverse gingivitis in adolescents.
牙龈炎症的临床特征为牙龈发红、肿胀以及软组织出血倾向增加。细菌生物膜是其病因。在此阶段，如果去除细菌生物膜并采用适当的控制方法，牙龈炎症就会消退。本研究使用菌斑指数（PI）和牙龈指数（GI）评估了单次超声洁治对青少年人群牙龈炎的治疗效果。研究样本由在一所公立高中牙科诊所挑选的15名男性青少年学生组成。在治疗前（基线），记录菌斑指数（PI）和探诊出血（BOP）情况。然后患者接受口腔卫生指导和超声洁治。在超声洁治后15天和30天进行随访检查，再次记录PI和BOP。数据采用配对样本t检验进行分析。还使用Pearson相关检验对生物膜的存在与探诊出血之间进行相关性分析。在基线与15天及30天检查之间，菌斑指数和探诊出血均有统计学意义的下降（p<0.05）。然而，15天和30天均值之间的差异在统计学上相似。相关性分析显示两个参数之间存在相关性（p<0.05）。结果表明，单次超声洁治联合口腔卫生指导对青少年牙龈炎的逆转有效。
