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目的:研究牙科美容修复中IPS e.max Press全瓷冠对上颌变色前牙的遮色效果。方法:收集上颌变色前牙130例,共172颗牙,行IPS e.max Press全冠修复。采用直观观测法和数码相机拍照相结合,综合分析其对修复牙的遮色效果。结果:轻度、中度变色前牙共119颗,采用IPS e.max Press全瓷冠修复,无1例基牙颜色外露;53颗重度变色牙中,37颗透出基牙颜色,16颗无基牙颜色外露。结论:轻度、中度牙冠变色前牙采用IPS e.max Press修复,可取得良好的遮色效果,而重度变色牙则存在透出基牙底色的风险。
OBJECTIVE: To study the opacification effect of the IPS e.max Press all-ceramic crown on maxillary discoloration of anterior teeth in aesthetic cosmetic dentistry. Methods: 130 cases of maxillary discoloration anterior teeth were collected, totaling 172 teeth, underwent IPS e.max Press crown restoration. Using the combination of visual observation and digital camera photographing, a comprehensive analysis of its effects on the restoration of occlusion teeth. Results: A total of 119 mild and moderate discolored anterior teeth were repaired with the IPS e.max Press all-ceramic crown without one of the abutment colors exposed. Of the 53 severely discolored teeth, 37 revealed abutment color and 16 No abutment color exposed. CONCLUSIONS: Mild and moderate crown discoloration of the anterior teeth using IPS e.max Press repair, can get a good opaque effect, and severe discoloration of the teeth there is the risk of revealing the abutment background.