目的 探究纤维桩联合复合树脂及氧化锆烤瓷冠修复治疗根管治疗（RCT）后后牙楔状缺损（WSD）的效果。方法 选取2019年8月—2022年8月在新乡市口腔医院治疗的300例（300牙）RCT后后牙WSD患者,按随机数字表法分成A组（n=150）、B组（n=150）。A组接受纤维桩联合复合树脂及氧化锆烤瓷冠修复治疗,B组接受金属烤瓷冠（PFM）联合金属桩核（MPC）修复治疗。对比2组修复成功率、修复效果、修复前后牙周健康指标[牙龈指数（GI）、菌斑指数（PLI）、牙周探诊深度（PD）]、龈沟液炎性因子[白细胞介素-6（IL-6）、白细胞介素-10（IL-10）、肿瘤坏死因子-α（TNF-α）]水平。结果 A组修复成功率为97.33%（146/150）,高于B组的87.33%（131/150）（P<0.05）;A组边缘密合性、表面质地、颜色匹配均优于B组（P<0.05）;修复6个月后A组GI、PLI、PD较B组低（P<0.05）;修复1个月后A组龈沟液TNF-α、IL-6水平较B组低,IL-10水平较B组高（P<0.05）。结论 与PFM联合MPC修复治疗RCT后后牙WSD患者相比,应用纤维桩联合复合树脂及氧化锆烤瓷冠修复治疗更有助于提升修复成功率及修复效果,改善牙周健康,且对组织产生创伤更小。

Objective To investigate the restorations outcome of fibre post + composite resin + zirconia porcelain crown for patients with wedge-shaped defects（WSD）in posterior teeth after root canal therapy（RCT）．Methods A total of 300 patients（300 teeth）with posterior WSD after RCT in our hospital（from August 2019 to August 2022）were selected and divided into group A（n=150）and group B（n=150）according to random number table method．Group A received composite resin + zirconia porcelain crown + fiber post repair treatment,while group B received porcelain fused to metal（PFM）+ metal post core（MPC）repair treatment．The success rate of repair,the effect of repair,the periodontal health indicators before and after repair[gingival index（GI）,plaque index（PLI）,periodontal probing depth（PD）],and the levels of gingival creval fluid inflammatory factors[interleukin-6（IL-6）,IL-10,tumor necrosis factor-α（TNF-α）] were compared between the two groups．Results The success rate of repair in group A was 97.33%（146/150）,higher than 87.33%（131/150）of group B（P<0.05）．The edge tightness,surface texture and color matching of group A were better than those of group B（P<0.05）．After 6 months of repair,GI,PLI and PD in group A were lower than those in group B（P<0.05）．After one month of repair,the contents of TNF-α and IL-6 in gingival crevicular fluid of group A were lower than those of group B,and the contents of IL-10 were higher than those of group B（P<0.05）．Conclusions Compared with PFM+MPC in the treatment of posterior WSD patients after RCT,the application of composite resin + zirconia porcelain crown + fiber post repair is more helpful to improve the success rate and effect of repair,improve periodontal health,and cause less tissue trauma．

目的 探究应用烤瓷+活动义齿修复在牙列重度磨耗伴缺失患者治疗中对咀嚼效能的影响。方法 选定本院2019年2月—2021年2月口腔科接诊的71例牙列重度磨耗伴缺失患者,按随机数字表法分为2组,对比组和病例组各35例,对比组接受常规义齿修复治疗,病例组接受采纳烤瓷+活动义齿修复,对比2组临床疗效、咀嚼功能、Fricton指数、并发症总发生率。结果 临床总有效率病例组(94.44%)高于对比组(74.29%),病例组治疗后咀嚼效率、咬合力均比对比组高,P均＜0.05。病例组治疗后Fricton指数低于对比组,病例组并发症总发生率(2.78%)低于对比组(20.00%),P均＜0.05。结论 烤瓷+活动义齿修复可有效提高牙列重度磨耗伴缺失患者咬合力、咀嚼功能,改善颞下颌关节功能,且并发症较少,效果确切。

目的 对比分析二氧化锆全瓷冠与钴铬合金烤瓷冠修复牙体牙列缺损的临床疗效。方法 选择2008年3月以来广东工业大学医院口腔科和江西省萍乡市安源区现代口腔门诊部牙体牙列缺损全冠修复患者150例364颗,随机分为2组,实验组采用二氧化锆全瓷冠75例185颗,对照组采用钴铬合金烤瓷冠75例179颗,修复后随访2年对比观察,结果采用χ²检验分析。结果 两组在修复体完整性、固位、边缘密合度、牙敏感症状、继发龋、邻面接触点、过敏反应方面差异无统计学意义(P＞0.05);但在牙龈状况、龈缘着色、颜色匹配方面差异有统计学意义(P＜0.01)。结论 二氧化锆全瓷冠修复体美学效果和生物相容性优于钴铬合金烤瓷冠。

Objective To compare and analyze the clinical effects of restoring tooth dentition defect by using zirconium dioxide full porcelain crowns and cobalt chromium alloy porcelain crowns. Methods 150 patients with 364 teeth suffering from tooth dentition defect in hospital of guangdong university of technology and modern stomatology clinic in pingxiang since March of 2008 are chosen and randomly divided into two groups. 75 patients with 185 teeth in the experimental group are restored with zirconium dioxide full porcelain crowns and 75 patients with 179 teeth in the control group are restored with cobalt chromium alloy porcelain crowns, which was followed up with 2-year observation. Results There is no statistical significance between the two groups in terms of repair integrity, retention, edge adaptation, tooth sensitivity symptoms, secondary caries, contact points, and allergic reaction(P＞0.05). But statistical significance exists in gingival status, gingival coloration, and color matching(P＜0.01). Conclusion Zirconium dioxide full porcelain crowns are superior to cobalt chromium alloy porcelain crowns in aesthetic effect and biocompatibility.