氧化锆全瓷冠修复和钴铬合金烤瓷冠修复对前牙牙冠延长术后牙周影响分析
2014-06-26李二红薛彬
李二红 薛彬
【摘要】 目的:比较氧化锆全瓷冠修复和钴铬合金烤瓷冠修复对前牙牙冠延长术后牙周影响。方法:选取2010年3月-2011年4月在本院口腔科择期行牙冠延长术、并进行冠修复的患者16例(上颌前牙96颗),按随机数字表法分为全瓷组和烤瓷组。牙冠延长术后,全瓷组进行氧化锆全瓷冠修复,烤瓷组进行钴铬合金烤瓷冠修复,比较两组患者的牙周状况及对修复效果的满意度。结果:全瓷组牙周正常45例(93.8%),轻度病损2例(4.2%),中度病损1例(2.1%),无重度病损者;烤瓷组牙周正常22例(45.8%),轻度病损21例(43.8%),重度病损3例(6.3%),重度病损2例(4.2%),全瓷组牙周状况好于烤瓷组,差异有统计学意义(P<0.05);全瓷组修复满意度为95.8%,高于烤瓷组的60.4%,差异有统计学意义(P<0.05)。结论:全瓷冠修复对前牙牙冠延长术后牙周影响较小,牙周状况显著优于烤瓷修复,能够减少牙周病损的发生,提高患者满意度。
【关键词】 前牙牙周; 全瓷冠修复; 烤瓷冠修复; 牙冠延长术; 影响
【Abstract】 Objective: To compare influence of zirconia porcelain crown restoration and co-cr alloy PFM crown restoration effect on developing crowns before prolong postoperative periodontal. Method: 16 patients with crown repair maxillary anterior teeth (96 teeth) were selected in our hospital from March 2010 to April 2011, and were randomly divided into whole porcelain group and PFM group. Crowns prolong postoperative, the whole porcelain group were treated by porcelain zirconia porcelain crownrepair, the PFM group were treated with cobalt chromium alloy PFM crown repair, the periodontal status and patient satisfaction to repair effect of two groups were compared. Result: The periodontal condition with normal were 45 cases (93.8%), mild damage were 2 cases (4.2%), moderate damage was 1 case (2.1%) in the whole porcelain group, no severe damage; the periodontal condition with normal were 22 cases (45.8%), mild damage were 21 cases (43.8%), severe disease were 3 patients (6.3%), severe damage were 2 cases (4.2%) in the PFM group; the periodontal condition of the whole porcelain group was better than that in the PFM group (P<0.05); the patients to repair satisfaction of the whole porcelain group was 95.8%, was higher than 60.4% of the PFM group (P<0.05). Conclusion: all porcelain crown restoration less effect on postoperative periodontal developing crowns before extending, periodontal status significantly better than that of PFM restoration, can reduce the occurrence of periodontal disease damage, improve patient satisfaction.
【Key words】 Front teeth periodontal; All the porcelain crown restoration; PFM crown restoration; Surgical crown lengthening; Impact
前牙由于其位置突出,容易受外伤或龋坏的影响,导致牙齿美观度遭到破坏,当破坏断面达到龈下时,则会使修复体颈缘植入龈下过深,破坏牙周正常组织,引起炎症等不良反应[1]。因此,需进行牙冠延长术,以便使健康牙齿结构暴露,有助于牙齿修复或利于美观[2]。开展牙冠延长术修复过程中需要使用生物修复材料,金属烤瓷是传统修复过程中常用材料,随着高分子材料技术的不断进步,全瓷材料逐渐被用于临床修复中,具有强度大、韧性好、外观与天然牙相似等优点,氧化锆全瓷更是以其良好的化学和物理性能而得到临床认可[3-4]。考虑到牙冠延长术中使用的修复材料可能会对牙周健康造成一定的影响,本研究探讨了氧化锆全瓷冠修复对前牙牙冠延长术后牙周的影响,并与钴铬合金烤瓷冠修复进行比较,以前为临床治疗提供基础资料。……
