[The combined occluding effect of fluor protector and Nd:YAG laser irradiation on human dentinal tubules].
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 microns. 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.
Zhang
C
C
Special Dental Department, Peking University School of Stomatology, Beijing 100081, China.
Lin
Q
Q
Zhao
B
B
D003131:Combined Modality Therapy; D003807:Dentin Sensitivity / Q000628:therapy*; D004338:Drug Combinations; D005460:Fluorides, Topical; D006801:Humans; D053685:Laser Therapy; D011140:Polyurethanes; D012821:Silanes
D004338:Drug Combinations; D005460:Fluorides, Topical; D011140:Polyurethanes; D012821:Silanes; C022599:Fluor Protector