Yeh C J
Mackay Memorial Hospital, Taitung, Taiwan.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998 Dec;86(6):660-3. doi: 10.1016/s1079-2104(98)90199-8.
Abnormal deposition of melanin in gingiva can often occur. Complaints of "black gums" are common, and demand for depigmentation is usually made for esthetic reasons. A simple and effective cryosurgical technique to eliminate the pigmentation is the subject of this article.
Twenty patients with dark gingiva were treated by direct application of liquid nitrogen with a cotton swab for 20 to 30 seconds.
The treated gingiva appeared normal within 1 to 2 weeks after 1 or 2 cryosurgical treatments. The acceptance of the treatment was excellent.
This was a simple, bloodless cryosurgery for the depigmentation of gingiva, requiring no local anesthesia or sophisticated equipment.
黑色素在牙龈中的异常沉积经常会发生。“牙龈发黑”的主诉很常见，通常出于美观原因而要求进行色素沉着去除。本文的主题是一种简单有效的冷冻手术技术来消除色素沉着。
20例牙龈颜色较深的患者接受了用棉签直接涂抹液氮20至30秒的治疗。
经过1或2次冷冻手术后，治疗后的牙龈在1至2周内看起来恢复正常。患者对该治疗的接受度很高。
这是一种用于牙龈色素沉着去除的简单、无血的冷冻手术，无需局部麻醉或复杂设备。
