Abstract
BACKGROUND: Drug-induced gingival overgrowth is common but neglected in patients with systemic disease medications until it seriously affects the quality of life. METHODS: Initial periodontal treatment, combined with water laser surgery, was performed sequentially in two cases. RESULTS: The therapeutic effect was good, and there was no recurrence along with good oral hygiene. CONCLUSION: Water laser equipment surgery, as well as initial periodontal treatment, required that surgeons are trained specifically. A tool was devised for various oral diseases, and it was safer, more efficient and more comfortable than others.