Nd:YAG laser is well absorbed to water, melanin, hemoglobin and thus, Nd:YAG laser may be used for bleeding control and extraction site sterilization where is easily contaminated by saliva and blood. Additionaly, Nd:YAG laser have analgesic
effect
by
elevation of pain threshold.
On the basis of Nd:YAG laser effects, we applied the Nd:YAG laser on extraction socket of 50 patients who visited to our department for lower third molar extraction and evaluated the effects of Nd:YAG laser on the bleeding control, pain relief,
swelling
reduction after tooth extraction. For the objective assesment on Nd:YAG laser effects, we made up the other 50 patients(control group) who were treated by conventional extraction method and compare the subjective and objective symptoms(pain
relief,
swelling and oozing time) between each group.
@ES The results were as follows:
@EN 1. The Nd:YAG laser was effective to relief of postextraction pain and most effective to 2 hours after extraction when local anesthesia disappears.
2. The Nd:YAG laser application was non-effective to reducing the facial swelling after extraction.
3. The Nd:YAG was effective to decrease the oozing time after extraction and the average time was 4 hours.
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