Department of Periodontology, Institute of Odontology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
Acta Odontol Scand. 2011 Mar;69(2):118-24. doi: 10.3109/00016357.2010.538718. Epub 2010 Dec 13.
To study root caries and risk profiles using the Cariogram in relation to periodontal disease severity and to analyse indicators associated with high caries risk.
A cross-sectional examination was carried out on 112 patients with periodontal disease from two government clinics in Saudi Arabia. The investigation comprised a questionnaire, bitewing radiographs, measurement of salivary secretion rate, buffering capacity and cariogenic microorganisms, and registration of periodontal status, plaque amount and coronal and root caries/fillings (DFT and RDFT). The data were then entered into the Cariogram pedagogic model to illustrate the caries risk profiles.
Patients were grouped according to periodontal disease severity into one of three groups: (1) gingivitis (n = 44); (2) mild-to-moderate periodontitis (n = 33); and (3) severe periodontitis (n = 35). The prevalence of RDFT in the total sample was 17%. There were no statistically significant differences between the three groups in number of root lesions or mean 'Actual Chance to Avoid New Cavities' (Chance-AC) according to the Cariogram. Of the total sample, 22% displayed high caries risk (Chance-AC ≤ 40%). The most significant risk indicators in high caries risk patients were infrequent use of fluoride and unfavourable salivary and microbial parameters.
Root surface lesions and high caries risk were present in about one-fifth of the patients referred for periodontal treatment. A combination of risk indicators rather than a single one contributed to the increased risk. Caries and risk profiles were not significantly correlated with periodontal disease severity.
使用 Cariogram 研究根龋和风险概况与牙周病严重程度的关系，并分析与高龋风险相关的指标。
对来自沙特阿拉伯两家政府诊所的 112 名牙周病患者进行了横断面研究。调查包括问卷调查、牙合翼片、唾液分泌率、缓冲能力和致龋微生物的测量，以及牙周状况、菌斑量以及冠部和根龋/填充物（DFT 和 RDFT）的登记。然后，将数据输入 Cariogram 教学模型，以说明龋病风险概况。
根据牙周病严重程度，患者分为三组：（1）牙龈炎（n=44）；（2）轻度至中度牙周炎（n=33）；和（3）重度牙周炎（n=35）。总样本中 RDFT 的患病率为 17%。根据 Cariogram，三组之间的根病变数量或平均“实际避免新龋的机会”（Chance-AC）均无统计学差异。在总样本中，22%的患者显示出高龋风险（Chance-AC≤40%）。高龋风险患者的最重要风险指标是氟化物使用不频繁以及不利的唾液和微生物参数。
在接受牙周治疗的患者中，约有五分之一存在根面病变和高龋风险。增加的风险是由多个风险指标而不是单一指标共同导致的。龋病和风险概况与牙周病严重程度无显著相关性。
