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A Journal on Dentistry and Maxillofacial Surgery

Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
Indexed/Abstracted in: CAB, EMBASE, Index to Dental Literature, PubMed/MEDLINE, Scopus, Emerging Sources Citation Index




Minerva Stomatologica 2012 July-August;61(7-8):319-22

language: English

The effect of low level laser therapy on pain reduction after third molar surgery

Saber K. 1, Chiniforush N. 1, Shahabi S. 2

1 Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran;
2 Laser Research Center of Dentistry, Dental Materials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran


AIM: The aim of this study was to evaluate the effects of low level laser on the postoperative pain of patients who had to undergo third molar surgery.
METHODS: In a randomized clinical setting, 100 patients were assigned to two groups of 50 in each. Every patient underwent surgical removal of one mandibular third molar (with osteotomy). After suturing the flap, the soft laser was applied to every patient. In group I laser radiation was applied by the dental assistant with output power of 100 mW, in continuous mode with sweeping motion, in group II, the laser hand piece was only brought into position without releasing energy, so that no patient knew which group he belonged to. The patient was given a pain evaluation form where they could determine their individual pain level and duration.
RESULTS:The statistical tests showed significant difference in pain level between laser and control group (P<0.001) but no significant difference found in pain duration in two groups (P=0.019).
CONCLUSION:The result of this study verifies the positive effect of the soft-laser therapy in the postoperative complication after third molar extraction.

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