后牙种植冠桥修复的邻接触丧失状况分析:单中心、前瞻性、观察性临床试验方案

发布时间：2018-04-06 21:16

本文选题：牙种植　切入点：手术后并发症　出处：《中国组织工程研究》2017年18期

【摘要】：背景:邻接触丧失作为一种发病率较高的后牙种植冠桥修复并发症,其产生因素是多种多样的,可能与年龄、牙位、咬合接触、缺牙时间、是否进行游离端修复等相关。目的:分析后牙种植冠桥修复的邻接触丧失状况。方法:试验为单中心、前瞻性、观察性临床试验,在中国四川省,西南医科大学附属口腔医院完成。选取2015年6月到2016年6月在南医科大学附属口腔医院进行治疗的后牙种植冠桥修复患者82例,患者戴用修复体治疗的时间在1-40个月,邻接触丧失被定义为厚度为30μm的邻接触检查片或者牙线能够无阻力通过检测区域。通过单因素及多元相关分析,分析随访1,3,6个月后牙种植冠桥修复的邻接触丧失状况。试验方案经西南医科大学附属口腔医院伦理委员会批准,批准号为2016024。临床试验研究的实施符合《赫尔辛基宣言》和医院对人体研究的相关伦理要求。参与试验的患病个体及其家属为自愿参加,均对试验过程完全知情同意,在充分了解治疗方案的前提下签署"知情同意书"。结果与结论:入选的82例患者175个临接触位点中,共发现41个邻接触区发生邻接触丧失,其中上颌20个,下颌21个,表明邻接触丧失与上下颌并无明显关联。单因素分析显示,修复体戴用时间、修复前缺牙时间和游离端修复是影响并发症发生的独立影响因素(P0.05)。多元相关分析发现游离端修复以及修复前的缺牙时间太短是导致邻接触丧失发生的独立影响因素。提示在进行后牙种植冠桥修复时,应考虑游离端修复及缺牙时间等相关因素,尽可能减少邻接触丧失的发生。
[Abstract]:Background: as a complication of implant crown and bridge restoration with high incidence, the adjacent contact loss may be related to age, tooth position, occlusal contact, tooth loss time and free end repair.Objective: to analyze the adjacent contact loss in the restoration of posterior teeth with implant crown and bridge.Methods: a single-center, prospective, observational clinical trial was conducted in the affiliated Stomatology Hospital of Southwest Medical University, Sichuan Province, China.From June 2015 to June 2016, 82 patients with posterior teeth implant crown and bridge prosthesis were treated at the affiliated Stomatological Hospital of Southern Medical University. The time of wearing prosthesis was 1-40 months.Adjacent contact loss is defined as a 30 渭 m thick adjacent contact inspection piece or dental floss that can pass through the detection area without resistance.By univariate and multivariate correlation analysis, the adjacent contact loss of dental implant crown and bridge restoration was analyzed after 1 and 6 months follow-up.The experimental program was approved by the Ethics Committee of the Stomatological Hospital affiliated to Southwest Medical University, approved as 201602424.The implementation of clinical trial research is in line with the Helsinki Declaration and the ethical requirements of human research in hospitals.The patients and their families who participated in the trial were all willing to take part in the experiment and signed the "informed consent" on the premise of full understanding of the treatment plan.Results and conclusion: among the 175 contact sites in 82 patients, 41 adjacent contact areas were found to be lost, including 20 maxillaries and 21 mandibles, indicating that there was no significant correlation between adjacent contact loss and upper and mandibular contact.Univariate analysis showed that the time of wear, the time of anterior tooth loss and the repair of free end were independent factors affecting the occurrence of complications (P 0.05).Multivariate correlation analysis showed that the free end repair and the short time of tooth loss before repair were independent factors that caused the loss of adjacent contact.It is suggested that the free end restoration and tooth loss time should be taken into account in the restoration of posterior implant crown and bridge, and the loss of adjacent contact should be minimized as far as possible.
【作者单位】：西南医科大学附属口腔医院口腔修复科;
【分类号】：R783.3

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