The combined occluding effect of fluor protector and Nd:YAG laser irradiation on human dentinal tubules
- VernacularTitle:激光促进氟保护漆对牙本质小管的封闭作用
- From: Chinese Journal of Stomatology 2001;36(2):105-107
- CountryChina
- Language:Chinese
- Abstract: Objective To evaluate the combined occluding effect of fluor protector and Nd:YAG Laser irradiation on human dentinal tubules. Methods Twenty-four dentin specimens with exposed dentinal tubule orifices treated by 37% H3PO4 were randomly divided into four groups. Group B, C and D were vanished by fluor protector, group A served as a control. Group D was lased by Nd:YAG laser. Group C and D were brushed with normal force. Results Under SEM, group A showed numerous exposed dentinal tubule orifices, the diameter of which is 2-3 μm. Group B showed closure of dentinal tubule orifices. Group C showed that most of the fluor protector were brushed away and group D showed over 80% of the dentinal tubule orifices were occluded. Conclusions Fluor protector combined with Nd:YAG laser can make most of the dentinal tubule orifices occluded even after brushed.