数字化口腔修复（19）--激光切龈与CAD／CAM全瓷冠美学修复（附病例报告）

目的：观察二极管激光修整前牙牙龈形态、龈沟深度及CEREC?椅旁计算机辅助设计与制造（ computer aided design／computer aided manufacturing，CAD／CAM）全瓷冠美学修复的临床效果。方法：前牙12、21、22牙体缺损患者1例，二极管激光修整前牙牙龈形态、龈沟深度，并用CEREC?椅旁CAD／CAM行全瓷冠美学修复。6个月后采用改良USPHS标准对其短期的临床疗效进行评估。结果：二极管激光修整牙龈1周后开始呈粉红，质地韧，形态和龈沟深度协调；修复6个月后全瓷冠完整无折裂，未见继发龋；修复体边缘密合，固位、邻接良好，颜色美观。结论：激光切龈方法精确，创伤小，出血少，视野清晰，愈合快，患者容易接受。

Digital restorative dentistry and prosthodontics (19)---Laser gingivectomy and esthetic restoration with CAD/CAM all ceramic crown(a case report)

Objective:To observe gingivectomy and the gingival sulcus depth by diode laser and the effect of all ce-ramic esthetic restoration via CEREC? chair-side CAD/CAM.Methods:One case with the anterior teeth defects have been
operated gingicvectomy by diode laser.Then the anterior teeth were restored by chair-side all ceramic CAD/CAM and the short-term clinical effect was evaluated by modified united States Public Health Service( USPHS) standard after six months. Results:The gingiva and the gingival sulcus depth was harmonious with the prosthesis,which in place smoothly,marginal in-tegrity and has a good aesthetic effect after six months of the restoration.Conclusion:During operation laser cutting tissue,the treatment had the advantages of less bleeding,clear vision,less trauma,and rapid healing.Patient was satisfied with the effect of treatment.Moreover,the application of laser can improve the comfort level and reduce adverse reactions during in restora-tion process.