Kursoglu Pinar, Gursoy Hare
1 Faculty of Dentistry, Department of Prosthodontics, Yeditepe University , Istanbul, Turkey .
Photomed Laser Surg. 2013 Jan;31(1):41-3. doi: 10.1089/pho.2012.3410. Epub 2012 Dec 18.
To demonstrate the efficiency of Er:YAG laser for removal of laminate veneers in case of fracture. Primary modes of failure of porcelain laminate veneers were noted to be fracture, microleakage, or debonding.
One of the predisposing factors for the occurrence of fractures is heavy functional or parafunctional loading.
Removal of fractured laminate veneers with Er:YAG laser is proposed as a reliable method. Two cases are presented in which fractured laminate veneers were removed with Er:YAG laser. The parameters used for removal were set at 20 Hz/320 mJ, with water irrigation for 9 sec and the chisel-type laser tip was selected (1.2×0.4 mm, rectangular shape). The pulse width was 200 ms.
The laminates were removed without any damage to the underlying tissue. The new restorations were reconstructed and both patients were taken under recall program at 6-month intervals.
The removal of fractured laminate veneers with Er:YAG laser could be a suitable alternative in routine clinical use.
证明铒钇铝石榴石(Er:YAG)激光在修复体折断时去除烤瓷贴面的有效性。烤瓷贴面的主要失败模式为折断、微渗漏或脱粘。
发生折断的诱发因素之一是功能负荷过重或存在副功能负荷。
提出用Er:YAG激光去除折断的烤瓷贴面是一种可靠的方法。本文介绍了2例用Er:YAG激光去除折断烤瓷贴面的病例。去除贴面时所用参数设置为20赫兹/320毫焦,水冲洗9秒,并选用凿型激光头(1.2×0.4毫米,矩形)。脉冲宽度为200毫秒。
成功去除贴面,未对下方组织造成任何损伤。重新制作了修复体,两名患者均进入每6个月一次的复查程序。
在常规临床应用中,用Er:YAG激光去除折断的烤瓷贴面可能是一种合适的替代方法。