Int J Stomatol

Inter J Stomatol ›› 2014, Vol. 41 ›› Issue (4): 468-473.doi: 10.7518/gjkq.2014.04.023

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Dentin hypersensitiveness of neodymium:yttrium aluminum garnet laser treatment

Guo Xiaoyu, Wu Younong.   

  1. Research Institute of Stomatology, Nanjing Medical University; Dept. of Conservative Dentistry and Endodontics, The Affiliated Stomatological Hospital, Nanjing Medical University, Nanjing 210029, China
  • Received:2013-06-17 Revised:2014-04-29 Online:2014-07-01 Published:2014-07-01

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Abstract:

Closing dentinal tubule is the basic guiding idedogy in the treatment of dentin hypersensitiveness(DH), but most of the traditional methods only have a short-term effect due to chew and wear of the desensitization agent coating on dentin surface. However using neodymium:yttrium-aluminum-garnet(Nd:YAG) laser in the treatment of DH can reach a more than 90% dentinal tubule closure rate, and no pits, cracks and carbonization destruction appear in dentin surface when the laser parameter is 1.5 W, 396 J·cm-2. When the temperature increment caused by laser irradiation does not exceed 5 ℃ for pulp chamber, and the increment of root surface does not exceed 10 ℃, it won’t cause any damage to the tooth pulp and periodontal tissue. Using Nd:YAG laser in the treatment of DH can reach quick and obvious curative effect, but there are also obstructive factors in the application of Nd:YAG laser such as dental fear, treatment risks, instrument limitations and the high costs. And in the process of using Nd:YAG laser, attention should be paid to the protection of eyes of patients and operators.

Key words: dentin hypersensitiveness, neodymium:yttrium-aluminum-garnet laser, dentinal tubule, close

CLC Number: 

  • R 781.2

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