Can long-term dentine bonding created in real life be forecasted by parameters established in the laboratory?
Can long-term dentine bonding created in real life be forecasted by parameters established in the laboratory?
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DOI：
10.1038/srep37799
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发表时间：
2016-11-25
影响因子：
4.6
通讯作者：
Pucci CR
中科院分区：
文献类型：
--
作者：
Rêgo HM;Alves TS;Bresciani E;Niu LN;Tay FR;Pucci CR
通过粘合剂固定在牙齿结构上的牙色塑料牙科填充物被广泛用于修复腐烂的牙齿。尽管实验室测试表明粘合剂粘附牙本质的能力会迅速恶化，但临床研究表明这些填充物相对耐用。这种差异表明，在实验室环境中用于模拟键降解的参数与临床结果没有很好的相关性。本研究检查了在现实生活中和不同实验室模拟粘合条件下进行的树脂复合材料填充物的长期拉伸粘合强度，以确定可用于预测牙本质中产生的粘合粘合的耐久性的参数。放置在体内的填充物经历了不同时期的口内功能。根据是否实施模拟牙髓压力（SPP）或热机械循环，以及完成的填充物在水中储存的时间来粘合体外样本。热机械循环与长期水老化相结合可用于预测体内产生的树脂-牙本质键强度的下降。未来的评估应采用这些参数。相反，SPP 的使用似乎并不是模拟粘合完整性长期临床恶化的重要参数。
Tooth-coloured plastic dental fillings secured by adhesives to tooth structures are widely used to fix decayed teeth. Whereas laboratory tests demonstrate rapid deterioration of the ability of the adhesives to stick to dentine, clinical studies show that these fillings are relatively durable. This discrepancy suggests that the parameters used for simulating bond degradation in the laboratory setting do not correlate well with clinical outcomes. The present study examined the long-term tensile bond strength of resin composite fillings performed in real life and under different laboratory-simulated bonding conditions to identify parameters that may be used to forecast the durability of adhesive bonds created in dentine. Fillings placed in vivo were subjected to different periods of intraoral function. In vitro specimens were bonded based on whether simulated pulpal pressure (SPP) or thermomechanical cycling was implemented, and how long the completed fillings were stored in water. Thermomechanical cycling used in combination with long-term water ageing are useful in forecasting the decline in strength of resin-dentine bonds created in vivo. These parameters should be adopted for future evaluations. Conversely, the use of SPP does not appear to be a significant parameter in the simulation of long-term clinical deterioration of bond integrity.
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影响因子：
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作者：
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影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
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