激光器 yag 关键�?传输 优化 参数 下载文档 收藏 打印 转格�?转本文档 转其他文�?分享：In periodontal therapy, surgical strategies are frequently required in moderate to State-of-the-art cases. As it is tough to absolutely get rid of calculus and plaque non-surgically and blindly from deep periodontal pockets, open