The Epidemiology of periodontal diseases Department of Preventive Dentistry School Hospital of Stomatology Wuhan University Minquan Du杜民权
The Epidemiology of periodontal diseases Department of Preventive Dentistry School & Hospital of Stomatology Wuhan University Minquan Du 杜民权
Periodontal diseases Gingivitis is defined as an inflammatory process of the gingiva in which the junction epithelium,although altered by the disease, remains attached to the tooth at its original level Periodontitis is also an inflammatory condition of the gingival tissues,characterized by loss of attachment of the periodontal ligament and the bony support of the tooth From the viewpoint of public health that periodontal diseases are slowly progressing inflammatory diseases
Periodontal diseases ❖ Gingivitis is defined as an inflammatory process of the gingiva in which the junction epithelium, although altered by the disease, remains attached to the tooth at its original level ❖ Periodontitis is also an inflammatory condition of the gingival tissues, characterized by loss of attachment of the periodontal ligament and the bony support of the tooth ❖ From the viewpoint of public health that periodontal diseases are slowly progressing inflammatory diseases
Periodontal diseases Local factors:oral hygiene,dental plaque and calculus Systemic factors:unusual syndromes associated with defects,malnutrition and hormonology imbalance
Periodontal diseases ❖ Local factors: oral hygiene, dental plaque and calculus ❖ Systemic factors: unusual syndromes associated with defects, malnutrition and hormonology imbalance
The 3rd National Oral Helath Survey 2005 ÷12岁组牙龈出血为57.7% 。3544岁人群牙周炎患病率41.0% ÷6574岁人群牙周炎患病率52.3%
The 3rd National Oral Helath Survey 2005 ❖ 12岁组牙龈出血为57.7% ❖ 35~44岁人群牙周炎患病率41.0% ❖ 65~74岁人群牙周炎患病率52.3%
指数 An Index is a graduated,numerical scale with upper and lower limits,with scores in the scale corresponding to specific criteria 指数：表明某种现象变动的程度。指标作用或 批示作用的标识。用数值级差作标准，测量 和比较疾病的扩展范围和严重程度
An Index is a graduated, numerical scale with upper and lower limits, with scores in the scale corresponding to specific criteria 指数:表明某种现象变动的程度。指标作用或 批示作用的标识。用数值级差作标准，测量 和比较疾病的扩展范围和严重程度 指 数
An Ideal Index 。简单 Simplicity 。价廉 Acceptability 。有效 Validity 冬可靠 Reliability 敏感Sensitivity 能用统计学方法处理Quantifiability
An Ideal Index ❖ 简单 Simplicity ❖ 价廉 Acceptability ❖ 有效 Validity ❖ 可靠 Reliability ❖ 敏感 Sensitivity ❖ 能用统计学方法处理 Quantifiability
The Measurement of Periodontal Diseases In contrast to the stability of the DMF index for caries over a 50-year period,the philosophical basis for measuring periodontal disease has changed several times over a shorter time. Clinical measures used for gingivitis and periodontitis were first described 40 years ago
The Measurement of Periodontal Diseases ❖ In contrast to the stability of the DMF index for caries over a 50-year period, the philosophical basis for measuring periodontal disease has changed several times over a shorter time. ❖ Clinical measures used for gingivitis and periodontitis were first described 40 years ago
Periodontal health index l.Oral hygiene index-simplified简化口腔卫生指数 2.Plaque Index菌斑指数 3.Turesky Modified Quigley-Hein Plaque Index 4.Gingival Index牙龈指数 5.Sulcus bleeding index龈沟出血指数 6.Community periodontal index社区牙周指数
Periodontal health index 1. Oral hygiene index – simplified 简化口腔卫生指数 2. Plaque Index 菌斑指数 3. Turesky Modified Quigley-Hein Plaque Index 4. Gingival Index 牙龈指数 5. Sulcus bleeding index 龈沟出血指数 6. Community periodontal index 社区牙周指数
Oral hygiene index -simplified (OHI-S) Debris index 软垢指数 Calculus index牙石指数
Oral hygiene index – simplified (OHI-S) ❖ Debris index 软垢指数 ❖ Calculus index 牙石指数
Oral hygiene index-simplified 牙面：16112631唇面，3646舌面 。检查方法：视诊，探诊 。计分方法： 牙面计分之和 。软垢、牙石计分= 受检牙面数 。个人计分=简化牙石计分+简化软垢计分
Oral hygiene index – simplified o 牙面：16 11 26 31唇面，36 46舌面 o 计分方法： 牙面计分之和 o 软垢、牙石计分＝ 受检牙面数 o 个人计分＝简化牙石计分＋简化软垢计分 o 检查方法：视诊，探诊