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冠内外漂白和随行漂白对变色无髓牙的疗效评价

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摘要 目的评价冠内外漂白和随行漂白对变色无髓牙的漂白。方法 36例39颗变色无髓牙随机分成2组,冠内外漂白组用体积分数10%的过氧化脲漂白剂进行漂白;随行漂白组用体积分数35%的过氧化氢漂白剂进行漂白。记录2组患牙漂白前后的色阶值,计算漂白的有效率和所需时间。结果冠内外漂白组有效率95%,随行漂白组有效率100%,差异无统计学意义(Z=-0.852,P=0.607)。冠内外漂白组和随行漂白组治疗时长分别为(16.37±1.98)d和(9.16±1.68)d,差异有统计学意义(t=12.125,P<0.001)。结论冠内外漂白和随行漂白均能有效治疗变色无髓牙,随行漂白疗程更短。
出处 《广东牙病防治》 2014年第11期587-590,共4页 Journal of Dental Prevention and Treatment
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参考文献8

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