Bassir Mahshid Mohammadi, Bagheri Golnaz
Department of Operative Dentistry, Shahed University, Tehran, Iran.
J Conserv Dent. 2013 Jan;16(1):41-4. doi: 10.4103/0972-0707.105297.
To compare the effectiveness of phosphoric acid (H(3)PO(4))-pumice compound with conventional hydrochloric acid (HCl)-pumice compound in treating different severities of dental fluorosis with the microabrasion technique.
Sixty-seven anterior teeth from seven patients with different severities of dental fluorosis were treated. In each patient, half of the teeth were treated with HCl-pumice compound and the other half with H(3)PO(4)-pumice compound (split-mouth design). Both treatment compounds were applied for 30-second periods and treatment continued up to 10 minutes. Before and after treatment, standardized photographs were taken. The photographs were compared by two experienced observers unaware of the modality of treatment. Two indices of aesthetics, improvement in appearance (IA) and degree of stain removal (DSR), were determined according to a visual analog scale. The inter- and intra-correlation coefficients were made; then, statistical analyses were calculated using Mann-Whitney and t-test.
There were no significant differences in interobserver evaluation. Improvements in aesthetic indices were observed in all fluorotic teeth by both compounds; however, the mean treatment time with HCl-pumice was significantly lower than H(3)PO(4)-pumice.
The H(3)PO(4)-pumice compound improved aesthetic indices in fluorotic teeth similar to the HCl-pumice compound.
比较磷酸（H₃PO₄）-浮石复合物与传统盐酸（HCl）-浮石复合物在运用微磨除技术治疗不同严重程度氟斑牙方面的有效性。
对7例不同严重程度氟斑牙患者的67颗前牙进行治疗。在每位患者中，一半牙齿用HCl-浮石复合物治疗，另一半用H₃PO₄-浮石复合物治疗（双盲设计）。两种治疗复合物均应用30秒，治疗持续10分钟。治疗前后拍摄标准化照片。由两名不知治疗方式的经验丰富的观察者对照片进行比较。根据视觉模拟量表确定两个美学指标，外观改善（IA）和污渍去除程度（DSR）。计算组内和组间相关系数；然后，使用曼-惠特尼检验和t检验进行统计分析。
观察者间评估无显著差异。两种复合物在所有氟斑牙中均观察到美学指标的改善；然而，HCl-浮石的平均治疗时间显著低于H₃PO₄-浮石。
H₃PO₄-浮石复合物在氟斑牙中改善美学指标的效果与HCl-浮石复合物相似。
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