快速高强度光疗对增加牙周温度和细胞活性的影响:一个体外研究
Samille Biasi Miranda1, Rodrigo Barros Esteves Lins2, Marina Rodrigues Santi3
1School of Dentistry, University of Pernambuco, Recife 50100-130, Pernambuco, Brazil.
Polymers
|June 19, 2024
概括
与标准方案相比,快速高强度光固化 (3秒) 显著增加了牙周间的温度. 然而,细胞活力仍然相当,这表明这种方法对于散装复合树脂是安全的.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料是一种生物材料.
- 恢复性牙科 恢复性牙科
背景情况:
- 研究快速高强度光固化方案 (3秒) 对牙纸温度和细胞健康的影响.
- 评估恢复性牙科中加速固化技术的安全性和有效性.
研究的目的:
- 为了评估与大批填充复合树脂的3秒高强度光固化协议相关的跨牙体温度升高和细胞活力.
- 为了比较快速与标准光固化持续时间对牙和纸替代品模型的影响.
主要方法:
- 人类牙牙盘被准备好并使用Valo Grand单元进行四个光固化方案,包括3秒高强度 (3200 mW/cm2) 和10秒中等强度 (1000 mW/cm2) 设置.
- 使用热电偶测量了牙间温度变化,并通过MTT测定来评估细胞活力.
- 统计分析涉及单向ANOVA和Tukey测试,以比较组之间的结果.
主要成果:
- 与10秒的中等强度协议相比,3秒的高强度协议导致明显更高的牙周温度升高 (p < 0.001).
- 虽然观察到更高的温度,但3秒组的细胞活力与标准方案相比,对于特定的散装复合树脂组 (p = 0.023,p = 0.025) 指出了潜在的细胞毒性作用.
结论:
- 大量填充复合树脂的快速高强度光固化 (3秒) 有效地提高了温度,但保持了与标准10秒协议相比的细胞活力.
- 这些发现表明,加速光固化可能是一个可行的选择,前提是采用适当的材料选择和技术来减轻潜在的细胞毒性.
相关概念视频
02:45Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
01:14Assessing Body Temperature - Oral
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...