Effect of Low-Level Laser Therapy on Wound Healing and Post-extraction Pain Management of Primary Molars.

The goal of this clinical trial is to evaluate the effect of low-level laser therapy on wound healing of primary molar teeth extraction. in children aged 5-8 years with bilateral primary molars indicated for extraction. this is a split mouth randomized controlled clinical trial.

Each participant will have one side randomly assigned to intervention using low level diode laser at a wavelength of 660nm aimed at the extraction site 1 cm away for 60 seconds in continuous emission mode. the other side will be placebo side with just the aiming beam, in both visits the participant will be given post-extraction instructions

participants will come for follow up on days 3, and 7 after extraction, they will answer an arabic self-reported questionnaire comprising 33 items that assessed pain, discomfort, analgesic consumption, daily activities, and jaw-function impairment on the night of the extraction and after 7 days, wound healing will also be measured days 3 and 7 using of the extraction site using Wound healing index by Landry, Turnbull and Howley, and wound size will be measured using Image J soft-ware from the from photographs.

Inclusion criteria

• • Age range from 5 - 8 years.

• Children free of any systemic disease or special health care need.
• No previous extractions.
• Positive or definitely positive behaviour during preoperative assessments according to the Frankl Rating Scale (score 3 or 4).
• Patients with bilateral primary molars indicated for extraction.
• Patients whose parents will give their written consent to participate

Exclusion criteria

• Resorption more than one third of the root length.
• Signs of mobility.
• History of allergy to local anesthesia.
• Medical History involving conditions such as prolonged bleeding, platelet disorders, hypersensitivity, allergic reactions to pain relievers and contradictions to laser therapy.
• Acute pain.