固定矫治中牙面pH变化与釉质脱矿的相关性研究

摘要

目的：分析固定矫治中牙面PH变化和釉质脱矿之间的关系。方法选择我院牙科在2015年5月~8月进行了固定矫治牙治疗患者50例进行研究分析，其中25例患者在治疗后出现脱矿（脱矿组），25例患者在治疗后未出现脱矿情况（未脱矿组），对两组患者进行上颌前牙唇面进行PH值测定，分析牙面PH变化与釉质脱矿之间的关联性。结果脱矿组患者的上颌牙唇面PH值为（5.46±0.14），未脱矿组患者的上颌牙唇面PH值为（6.82±0.24），两组相比差异具有统计学意义（P<0.05）。结论在固定矫治中，牙面的PH较低，使得口腔处于酸性环境中，易导致釉质脱矿的情况出现。%Objective To analyze the relationship between fixed appliance in dental enamel demineralization and PH changes between. Methods Hospital Dental in May 2015 to August were fixed appliance orthodontic treatment of 50 patients were studied analysis,25 patients had demineralization (decalcification group) after treatment,25 patients after treatment is not appears demineralization case (not demineralized group),two groups of patients with maxillary anterior teeth were PH value measurement,analysis correlation with changes in dental enamel demineralization PH between.Results Demineralization patients maxillary labial surface PH value of 5.46 ±0.14, mine removal group patients without maxillary labial surface PH value of 6.82±0.24,compared to the two groups was statistically significant difference(P<0.05).Conclusion Fixed orthodontic treatment,PH tooth surface is lower, resulting in the acidic environment of the mouth,easily lead to the emergence of cases of enamel demineralization.