中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (18): 2808-2813.doi: 10.3969/j.issn.2095-4344.2017.18.004

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

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

黄海霞,兰玉燕,郭  玲,王  频,刘  敏
  

  1. 西南医科大学附属口腔医院口腔修复科,四川省泸州市  646000
  • 收稿日期:2017-03-06 出版日期:2017-06-28 发布日期:2017-07-07
  • 作者简介:黄海霞,女,1983年生,广西壮族自治区桂林市人,汉族,硕士,主治医师,主要从事口腔种植修复的基础与临床研究。

The loss of interproximal contact between posterior crown/bridge restorations and adjacent teeth: study protocol for a single-center, prospective, observational clinical trial

Huang Hai-xai, Lan Yu-yan, Guo Ling, Wang Pin, Liu Min
  

  1. Department of Prosthodontics, Stomatology Hospital Affiliated to Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Received:2017-03-06 Online:2017-06-28 Published:2017-07-07
  • About author:Huang Hai-xia, Master, Attending physician, Department of Prosthodontics, Stomatology Hospital Affiliated to Southwest Medical University, Luzhou 646000, Sichuan Province, China

摘要:

文章快速阅读:

 

文题释义:
邻接触丧失:在临床上,种植修复体与周围邻牙之间的邻接触点出现细小间隙是非常常见的现象,被称作是牙种植冠桥修复的邻接触丧失。邻接触丧失被定义为当患者在接受邻接触检查片检查试验时,厚度为30 μm的检查片能够无阻力通过检测区域。
邻接触丧失的临床表现:牙种植冠桥修复的邻接触丧失的患者经常会发生食物嵌塞在修复体周围的情况,影响患者的咀嚼功能。
 
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30 μm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(P < 0.05)。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。

关键词: 生物材料, 口腔生物材料, 邻接触丧失, 后牙种植, 冠桥修复

Abstract:

BACKGROUND: Interproximal contact loss is a complication of posterior crown/bridge restorations with a higher incidence, and it is induced by a variety of factors, such as age, tooth position, occlusal contact, tooth loss time, whether there is a repair on the free end.
OBJECTIVE: To study and analyze the loss of interproximal contact between posterior crown/bridge restorations and adjacent teeth.
METHODS: This was a single-center, prospective, observational clinical trial which has been completed at the Stomatology Hospital Affiliated to Southwest Medical University, China. Totally 82 patients who had underwent posterior crown/bridge restorations from June 2015 to June 2016 in the Stomatology Hospital Affiliated to Southwest Medical University were selected. The time of denture wearing was 1-40 months, and the interproximal contact loss was defined by a 30 μm adjacent contact check or a flossing that can pass through the detection area with no resistance. Single-factor analysis and multiple correlation analysis were performed to analyze the interproximal contact loss at 1, 3, 6 months after posterior crown/bridge restorations. The study protocol was approved by the Ethics Committee of the Stomatology Hospital Affiliated to Southwest Medical University of China with an approval number of 2016024. All protocols were in accordance with Declaration of Helsinki, formulated by the World Medical Association. All patients and their relatives were informed of study protocols and provided a written informed consent prior to the beginning of the trial.
RESULTS AND CONCLUSION: Of the 82 patients enrolled, there were 41 adjacent contact zones with the emergency of interproximal contact loss, including 20 maxillary and 21 mandibular. It indicated that the interproximal contact loss had no association with the upper and lower jaw. Single-factor analysis showed that the time of denture wearing, tooth loss time and repair of the free end were confirmed as independent influencing factors for the complications (P < 0.05). Multiple correlation analysis found that free end repair and short-term tooth loss were independent factors of the interproximal contact loss. To conclude, free end repair and tooth loss time should be considered in the posterior crown/bridge restorations in order to minimize the occurrence of interproximal contact loss. 

Key words: Dental Implantation, Postoperative Complications, Tissue Engineering

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