Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
Int J Environ Res Public Health. 2019 Aug 23;16(17):3070. doi: 10.3390/ijerph16173070.
Although patients under supportive periodontal therapy (SPT) have a stable periodontal condition, the acute symptom of chronic periodontal disease occasionally occurs without a clear reason. Therefore, in the present study, to obtain a better understanding of this relationship in patients undergoing SPT, we hypothesized that the acute symptom of chronic periodontal disease might be affected by climate factors. We conducted a questionnaire study and carried out oral examinations on patients undergoing SPT who had been diagnosed as having the acute symptom of chronic periodontal disease. We collected climate data from the local climate office in Okayama city, Japan. We predicted parameters that affect the acute symptom of chronic periodontal disease with unidentified cause and divided patients into high and low groups in terms of climate predictors. Then we defined the cut-off values of parameters showing significant differences in the incidence of the acute symptom of chronic periodontal disease. The incidence of the acute symptom of chronic periodontal disease with unidentified cause was significantly different when the cases were classified according to the maximum hourly decrease in barometric pressure (1.5 and 1.9 hPa) ( = 0.04 and = 0.03, respectively). This suggests that climate variables could be predictors of the acute symptom of chronic periodontal disease. Therefore, gaining a better understanding of these factors could help periodontal patients undergoing SPT prepare to avoid the acute symptom of chronic periodontal disease.
虽然接受支持性牙周治疗 (SPT) 的患者牙周状况稳定，但慢性牙周病的急性症状偶尔会毫无明显原因地发生。因此，在本研究中，为了更好地了解 SPT 患者中这种关系，我们假设慢性牙周病的急性症状可能受气候因素影响。我们进行了一项问卷调查研究，并对被诊断为患有慢性牙周病急性症状的 SPT 患者进行了口腔检查。我们从日本冈山市当地的气候办公室收集了气候数据。我们预测了影响不明原因慢性牙周病急性症状的参数，并根据气候预测因子将患者分为高、低两组。然后我们确定了在慢性牙周病急性症状发生率上有显著差异的参数的截断值。根据气压每小时最大降幅（1.5 和 1.9 hPa）进行分类时，不明原因的慢性牙周病急性症状的发生率有显著差异（= 0.04 和= 0.03）。这表明气候变量可能是慢性牙周病急性症状的预测因子。因此，更好地了解这些因素可能有助于接受 SPT 的牙周病患者做好准备，以避免慢性牙周病的急性症状。
