Journal of Prevention and Treatment for Stomatological Diseases ›› 2017, Vol. 25 ›› Issue (5): 282-287.doi: 10.12016/j.issn.2096-1456.2017.05.002

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The effect of Nd：YAG lasers used in root canal therapy： a Meta-analysis

Wen-shu GE1(), Yao ZHANG2, Yi ZHANG1, Jian-ying HU1, Yong JIANG1()   

  1. 1. Department of General Dentistry Ⅱ, Peking University School and Hospital of Stomatology, Beijing 100081, China;
    2. Department of General Dentistry, Capital Medical University School of Stomatology, Beijing 100050, China
  • Received:2016-11-20 Revised:2016-12-23 Online:2017-05-20 Published:2018-09-03

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Abstract:

Objective Meta-analysis was used to assess the effect of Nd: YAG Lasers used in root canal therapy. Methods A search of literatures about clinical effect of Nd:YAG lasers in root canal therapy in PubMed, Embase, Cochrane Library, CMCC, CNKI, VIP, Wanfang databases was conducted from 1997 to 2015. The quality of included studies was stringently evaluated and data was analyzed by the RevMan 5.3 software. Results 8 studies were included in the Meta-analysis. Meta-analysis results showed that the ratio of the occurrence of endodontic interappointment emergencies (EIAE) of 24 ~ 48 hours and 1 week after the therapy was significantly lower in the Nd: YAG lasers group compared with the control group (24 h: OR = 0.27, 95％CI = 0.15 ~ 0.48; 1week: OR = 0.26, 95％CI = 0.13 ~ 0.54). The six months to one year failure rate of root canal therapy was lower in Nd:YAG lasers group compared with the control group, the differences were statistically significant (OR = 0.24, 95％CI = 0.06 ~ 1.00). Conclusion The use of Nd: YAG laser in root canal therapy relieves post-treatment pain response after the therapy and also reduces the long-term failure rate of root canal treatment.

Key words: Nd:YAG laser, Root canal therapy, Meta-analysis, Endodontic interappointment emergencies, Failure rate

CLC Number: 

  • R781.05

Figure 1

Flow chart of literature screening and inclusion"

Figure 2

Risk bias graph of the included studies"

Figure 3

Risk bias summarize of the included studies"

Figure 4

Meta-analysis of efficacy of Nd： YAG laser-assisted root canal therapy at 24~48 hours, 1 week, and 6~12 months"

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