位于工作和平衡尖端的低矿物质缺陷的严重程度和程度:初级牙和永久牙之间的比较研究
T C de Almeida Dos Santos1, L M Marubayashi2, M J D Gallo2
1Department of Pediatric Clinic, School of Dentistry of Ribeirão Preto, Universidade de São Paulo, Avenida do Café, s/n, Monte Alegre, São Paulo, Brazil. thaliasantos@usp.br.
概括
毛骨切割器低矿化 (MIH) 和低矿化第二次初级毛骨 (HSPM) 的缺陷在初级毛骨的工作尖端更为广泛. 这一发现并没有在永久性牙中观察到,也没有在初级牙中观察到缺陷严重程度.
科学领域:
- 儿科牙科 儿科牙科
- 牙科公共卫生 牙科公共卫生
- 发展生物学 发展生物学
背景情况:
- 摩尔切割器低矿化 (MIH) 和低矿化二次初级摩尔 (HSPM) 是常见的面膜缺陷.
- 缺陷位置,特别是在工作或平衡上,可能会影响损伤特征.
研究的目的:
- 为了比较MIH/HSPM缺陷的程度和严重程度,在工作与平衡上.
- 为了研究初级牙和永久牙之间的潜在差异.
主要方法:
- 评估了605名儿童 (6-12岁),确定了110名MIH/HSPM.
- 分析了268个受影响的牙 (65个初级,203个永久),根据尖端位置分类缺陷 (工作与平衡).
- 使用奇平方和曼-惠特尼测试进行统计比较.
主要成果:
- 在总体样本中,工作和平衡尖端之间缺陷程度或严重程度没有显著差异.
- 主要牙在工作上显示出明显更大的缺陷程度 (p=0.008).
- 初级牙缺陷的严重程度并没有因尖端位置 (p=0.568) 有显著差异.
结论:
- 在初级上,工作缺陷的程度比平衡缺陷更大.
- 这些发现突出了初级牙中低矿物化的特定模式.
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