Clinical Evaluation of Er, Cr: YSGG Laser in the Treatment of Oral Soft Diseases

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  • 口腔軟組織疾患に対するＥｒ，Ｃｒ：ＹＳＧＧレーザーの臨床評価

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Recently, CO2 lasers, diodelasers, Nd: YAG lasers, Er: YAG lasers, and Ho: YAG lasers have been used in dental treatment. A new laser device, Er, Cr: YSGG laser, has been developed that can be used for hard tissue ablation and soft tissue incision. Moreover, since use of this laser device hardly causes any sharp pain to occur when making incisions in soft tissue, the operation using this laser can be performed without local anesthesia. The purpose of this clinical study was to examine the clinical evaluation of oral soft tissue diseases that were treated by incision using a surgical scalpel and an Er, Cr: YSGG laser device. Sixty patients (28 males; 32 females), with gingival hyperplasia (n=20), gingival polyp (n=20), or abnormalities of the frenum (n=20) were selected and randomly divided to a control group treated by incision with a surgical scalpel and a laser treatment group. The scores of the clinical evaluations were recorded before treatment and immediately, 1 week, 2 weeks, and 4 weeks after treatment. The total scores of each case in the control group and laser treatment group were calculated and divided into three categories (very effective: 100-80, effective: 79-60, and no effect: 59-0). All cases treated using the Er, Cr: YSGG laser device fall into the very effective category, and there were no complications or side effects during the follow-up period of this clinical study. In conclusion, these results suggest that the Er, Cr: YSGG laser device had equal efficiency and safety compared to use of a surgical scalpel in the treatment of oral soft tissue diseases. Moreover, since the Er, Cr: YSGG laser could be employed without the use of local anesthesia in many cases, it was deemed extremely suitable for use in treating elderly or hypertension patients.

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