Abstract
BackgroundThe effect of low-level laser therapy (LLLT) on pain mitigation following the third molar surgery is still controversial. The absence of a standard method for using laser among the studies is related to the types of sample selection, sample size, control, and LLLT parameters, which make pain mitigation following surgery more controversial. Therefore, this study aimed to determine the effect of LLLT on reducing pain, swelling, and trismus following the mandibular impacted third molar surgery.MethodsThis study was performed on 25 healthy subjects. After the surgery, amoxicillin 500 mg was prescribed every 8 h for a 7-day period besides oral Ibuprofen (Gelofen) 400 mg every 12 h for a 3-day period. The intraoral Laser diode 940 nm was applied immediately after suture on the tested side, while on the placebo side, a fiber tip was used with no laser radiation following surgery. Eventually, the pain score was evaluated by VAS index from the 1st to the 7th-day post-surgery and then analyzed by SPSS 24.ResultsThe results indicate that the mean swelling and trismus before, during, 2 days after, and 7 days after the intervention did not differ significantly between the two studied groups. However, the results show that on the sixth and seventh days, the pain was significantly lower in the intervention group compared to the control group.ConclusionsThe results suggest that although the pain, swelling, and trismus following surgery were lower on the radiated side, only pain was found to be significant on the radiated side (p < 0.05).The registration number of the clinical trial in a Primary Registry in the WHO Registry Network is IRCT20141209020258N110 and the date of retrospective registration is 04/05/2019. The related URL is https://www.irct.ir/trial/36321.
Highlights
The effect of low-level laser therapy (LLLT) on pain mitigation following the third molar surgery is still controversial
In this study, 25 patients were included to examine the effect of intraoral LLLT with the wavelength of 940 nm on pain, swelling, and trismus following surgical extraction of mandibular impacted wisdom teeth
The results indicate that the mean trismus before, during the study, 2 days after, and 7 days after the surgery did not differ significantly between the two groups (p > 0.05)
Summary
The effect of low-level laser therapy (LLLT) on pain mitigation following the third molar surgery is still controversial. Pain management following surgery was reported via the consumption of some drugs such as Nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids [2, 9] Their consumption is often associated with several side effects, including stomach ulcers, gastrointestinal bleeding and perforation, impaired renal function, allergic reactions, and the inhibited function of platelets [9]. To minimize these side effects and to mitigate pain following surgery, alternative methods are used such as surgical closure methods with or without drain connection, cryotherapy, and laser [10, 11]
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