A clinical investigation of low level laser irradiation on hypersensitive dentine treatment (comparative study)

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05/5/2014 12:03 PM

A clinical investigation of low level laser irradiation on hypersensitive dentine treatment (comparative study)



Khulood Al-Safi B.D.S, M.Sc, ph.D (1)
Qutaiba Al-Hitty B.D.S, F.D.S (2)
Brazan Al-Atroushi B.D.S, M.Sc (3)


ABSTRACT

Background: Cervical dentine hypersensitivity is the most frequent complaint among reported odontalgias. This study evaluated the effectiveness of two types of lasers (904nm wavelength red, and 830 nm wavelength infrared) as dentine desensitizers, aswell as both the immediate and late therapeutic effects in individuals 25 to 45 yearsof age. Materials & methods: A total of 40 teeth with cervical exposure were treated in 4 sessions. Theywere divided into 2 groups according to treatment. A 904 nm wavelength red diodelaser and an 830 nm wavelength infrared diode laser were used. Dentine sensitivityto cold nociceptive stimulus was evaluated by means of a pain numeric scale from zero to 10 before each treatment session, at 15 and 30 min after irradiation, and ina follow-up period of 15, 30 and 60 days after the end of treatment.
Results: Significantlevels of dentinal desensitization were only found in patients ranging in age from 25to 35 years. The 904 nm red diode laser was more effective than the 830 nminfrared laser and a higher level of desensitization was observed at the 15 and 30minute post-irradiation examinations.
Conclusion: The immediate and late therapeutic effects ofthe 904 nm red diode laser were more evident in 25-35- year-old patients' comparedwith those of the 830 nm infrared diode laser, in terms of the different age groups.
Key words: Diodelaser, dentine hypersensitivity, dentine pain.




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