基于光纤光栅传感器的大块牙科复合材料性能研究

2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI:10.1109/IMOC.2017.8121085

A. P. G. de Oliveira Franco, C. C. de Moura, L. Z. Karam, H. Kalinowski

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引用次数: 1

摘要

在牙科中，为了实现复合材料与牙釉质和牙本质的粘附，建议采用渐进的光激活技术。为了减少临床时间和收缩聚合，开发了体积填充复合材料。根据粘度的不同，块状填充复合材料有两种类型。本研究评估了一种低粘度体填充复合材料在牙腔内聚合过程中的收缩和温度变化，该材料用于替代因龋齿和骨折而丢失的牙齿组织。光纤布拉格光栅传感器具有灵敏度高、尺寸小等优点。结果表明，缩聚反应为- 863±168 με，温度变化为12±7℃。温度变化很大，会损害纸浆的活力。

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Properties of bulk dental composites using fiber Bragg grating sensors

The technique recommended to achieve adhesion of composites to the enamel and dentine in dentistry is incremental with gradual photo-activation. Bulk fill composites were developed to reduce the clinical time and shrinkage polymerization. There are two types of bulk fill composites according the viscosity. The present study evaluates the shrinkage and temperature change during the polymerization of a bulk fill composite of low viscosity inside a teeth cavity, prepared to replace teeth tissue lost by caries and fractures. Fiber Bragg grating sensors are used in this investigation due their great sensibility and small dimensions. The results reveal shrinkage polymerization of −863±168 με and temperature change of 12±7°C. The temperature variationis high and can compromise the pulp vitality.

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2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

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