Alcântara Polyana Matos, Barroso Nayara Franciele Figueiredo, Botelho Adriana Maria, Douglas-de-Oliveira Dhelfeson Willya, Gonçalves Patrícia Furtado, Flecha Olga Dumont
Dentistry Departament, Federal University of Jequitinhonha and Mucuri Valleys, Rua da Glória, 187, Centro, Diamantina, Minas Gerais, 39100-000, Brazil.
BMC Oral Health. 2018 Sep 3;18(1):155. doi: 10.1186/s12903-018-0616-1.
This cross-sectional study aimed to identify the factors associated to the cervical dentin hypersensitivity (DH) in Brazilian adult population.
Three hundred and eighty patients (67.2% women and 32.8% men) were assessed by questionnaire and thermal test with ice. Participants marked in a visual analogue scale (VAS) the intensity of pain, and a calibrated examiner (ICC 0.990) measured the scores using a caliper. Pain scores above 0.5 mm were considered sensitive teeth. The DH associated factors were investigated by clinical examination. The association between variables was assessed by Spearman correlation and the Chi-square test. Logistic regression was used to determine the variables that predict DH (p < 0.05).
The mean age of participants was 24.08 years. In this population, 8958 teeth were evaluated, of those 3037 (33.9%) were diagnosed sensitive. The most prevalent associated factors to DH were abnormal tooth positioning (9.0%), occlusal trauma (6.5%) and gingival recession (5.6%). The erosion predicted significantly the DH on both simple (OR 7.85, p < 0.001) and multiple(OR 4.36, p < 0.001) analysis.
The exposure of dentinal tubules by erosion is probably the major predictor of dentin hypersensitivity. The healthy tooth is able to protect against DH.
这项横断面研究旨在确定巴西成年人群中与颈部牙本质过敏症（DH）相关的因素。
通过问卷调查和冰热测试对380名患者（67.2%为女性，32.8%为男性）进行评估。参与者在视觉模拟量表（VAS）上标记疼痛强度，一名经过校准的检查者（组内相关系数ICC为0.990）使用卡尺测量分数。疼痛分数高于0.5毫米的牙齿被视为敏感牙齿。通过临床检查研究与DH相关的因素。变量之间的关联通过Spearman相关性分析和卡方检验进行评估。采用逻辑回归确定预测DH的变量（p<0.05）。
参与者的平均年龄为24.08岁。在该人群中，共评估了8958颗牙齿，其中3037颗（33.9%）被诊断为敏感牙齿。与DH最常见的相关因素是牙齿位置异常（9.0%）、咬合创伤（6.5%）和牙龈退缩（5.6%）。在单因素（OR=7.85，p<0.001）和多因素（OR=4.36，p<0.001）分析中，侵蚀均显著预测了DH。
侵蚀导致牙本质小管暴露可能是牙本质过敏症的主要预测因素。健康的牙齿能够预防DH。
