CN105950034B - 一种负压改善牙本质粘接的方法 - Google Patents

一种负压改善牙本质粘接的方法 Download PDF

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CN105950034B
CN105950034B CN201610280365.3A CN201610280365A CN105950034B CN 105950034 B CN105950034 B CN 105950034B CN 201610280365 A CN201610280365 A CN 201610280365A CN 105950034 B CN105950034 B CN 105950034B
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CN105950034A (zh
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张祖太
诸葛睿申
田月明
丁宁
郑东翔
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Beijing Stomatological Hospital
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Beijing Stomatological Hospital
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Abstract

一种负压改善牙本质粘接的方法，属于口腔牙体修复技术领域。待粘接牙齿粘结面常规处理，涂布粘接剂后，利用产生负压装置通过吸嘴使待粘接牙齿粘结面产生负压，然后回归自然大气压(常压)或加压，该负压‑常压或加压的过程可以反复，通过负压‑常压或加压的过程使涂布待粘接牙齿粘结面的粘接剂更加深入地渗入到牙本质深层，改善混合层的质量，从而增加粘接剂与牙齿的粘固性与耐久性。

Description

一种负压改善牙本质粘接的方法
技术领域
本发明属于口腔牙体修复技术领域，涉及一种负压改善牙本质粘接的方法。
背景技术
复合树脂粘接修复在口腔临床应用十分广泛，但复合树脂聚合收缩的特性使充填体边缘存在微裂隙。从20世纪60年代Buonocore提出采用磷酸预处理牙面至今，牙本质粘接剂已历经7代的发展，目前不仅省时省力，而且对减少边缘微裂隙也有一定的效果，但是如何使粘接剂与牙本质的粘接更加牢固，一直是学者们研究的方向。不容置疑的是，通过有效的手段使粘接剂更好的渗入到粘接处牙本质的深层，能够有效地改善混合层的质量，改善牙本质粘接。
发明内容
本发明目的是针对当前牙本质粘接不够牢固、耐久性差等情况而发明的一种负压-常压或加压改善牙本质粘接的方法，通过负压-常压或加压的过程使涂布在待粘接牙齿表面的粘接剂更加深入地渗入到牙本质深层，部分进入牙本质小管，改善混合层的质量，以增加粘接剂与牙齿的粘固位与耐久性。
为实现上述目的，本发明采用的技术方案如下。
本发明是一种负压改善牙本质粘接的方法，其特征在于，对待粘接牙齿的粘结面进行处理(此为常规的技术方法，如包括清理等)，然后涂布粘接剂，在粘接剂固化前通过连接产生负压装置的吸嘴或吸盘将待粘接牙齿的粘结面周围密封包围住(待粘接牙齿的粘结面包围在吸嘴或吸盘中)，使待粘接牙齿的表面产生负压，然后撤出负压回归自然大气压即常压或进一步加压，该负压-常压或加压的过程可以反复，当待粘接牙齿的表面产生负压的时候，待粘接牙齿的粘结面中的空隙，主要为牙本质小管中的气体因负压而排出，当回归常压或加压时，覆盖于待粘接牙齿的粘结面的、可流动的粘接剂(或预处理剂)顺势深入地渗入到牙本质小管内，即有效增加树脂突(粘接剂渗入到粘接面下形成)渗入牙本质的深度和与牙齿的密合程度，也有效增加了粘接面积，改善混合层的质量，从而增加粘接剂与牙齿的粘固性与耐久性。
该负压-常压或加压的过程可以反复。
所述的负压为压力低于常压0.01—0.09MPa的压力即-0.09—-0.01MPa,所述的加压为压力为高于常压0.01—0.20MPa的压力。
其余粘接过程可参考厂家所提供说明书。吸盘或吸嘴采用柔性材料，吸嘴或吸盘一端开口与产生负压装置连接，另一端开口能够将待粘接牙齿的粘结面周围密封包围住，然后产生负压装置使得待粘接牙齿的粘结面产生负压。吸盘或吸嘴与产生负压装置之间附加采用拐角装置连接。
上述方法可用于粘接用预处理剂，即将粘结剂替换为预处理剂。
采用本发明方法粘接剂渗入到牙本质中的深度明显增大，且处理后的牙齿微拉伸强度增加至少两倍。该方法适用于牙釉质粘接及窝沟封闭。
附图说明
图1产生负压示意图
1吸盘或吸嘴，2与吸盘或吸嘴连接的负压发生器，3吸盘和负压发生器之间的附加连接的拐角装置，4龋洞，5负压开关。
图2常规牙本质粘接SEM界面；
图3负压-常压牙本质粘接SEM界面。
具体实施方式
以下是本发明的具体实施例，但不限于具体实施例，现结合附图作进一步说明。
实施例1
方法：选择首都医科大学口腔医学院口腔颌面外科因正畸新鲜拔除的牙冠完整、无龋坏及裂纹的人前磨牙(患者知情同意，拔除后用刮匙清除根面软组织残余，4℃生理盐水储存备用，时间不超过4周)5颗，用自凝树脂包埋牙根，磨除牙合面釉质，暴露牙本质，作为试件备用。
设备：扫描电镜(Phenom proX，Phenom-World B.V.，荷兰)，金相试样预磨机(YM-2A，上海金相机械设备有限公司)，低速切割机(Isomet 4000Linear Precision Saw,Buehler,美国)，微拉伸仪(Microtensile tester T-61010K,Biscotto,USA)。
材料：自凝甲基丙烯酸甲酯基托树脂(上海医疗器械股份有限公司齿科材料厂,简称:自凝树脂)，复合树脂(Z250，3M，美国)，粘接剂(可乐丽菲露粘接剂，日本)，实验的分组见表1。
试件制备与分组：将每颗牙齿纵向一分为二，分别作为对照组(C)和实验组(S)。对照组牙本质用35％磷酸处理15秒，水冲洗，无油空气吹干，涂前处理剂处理20秒，吹干，涂粘接剂光照10秒。实验组牙本质用35％磷酸处理15秒，水冲洗，无油空气吹干，涂前处理剂后吹干，涂粘接剂，在牙本质表面形成-0.05Mpa的负压处理10秒，解除负压5秒，再在牙本质表面形成-0.05Mpa的负压处理10秒，解除负压，光照10s。
将对照组和实验组按临床常规操作步骤在牙面上方分层固化堆约5毫米高的树脂柱。将对照组和实验组用切割机纵向切成1×1mm试件，各取其一用扫面电镜观察粘接剂渗入到牙本质的情况；其余做微拉伸实验，收集数据。对照组与实验组采用单因素方差分析(one-way ANOVA)和t检验进行统计分析，LSD检验作组间比较。各项分析的检验水准均为α＝0.05，P<0.05时差异有统计学意义。
电镜观察显示，实验组(图3)粘接剂渗入到牙本质中的深度明显大于对照组(图2).
微拉伸强度结果显示,实验组的微拉伸强度明显大于对照组，见下表
分组 处理方法 样本数 微拉伸强度(MPa)
对照组C 常规粘接 5 27.39±9.64
实验组S 负压-常压(重复一次) 5 70.36±7.56

Claims (7)

1.一种负压改善牙本质粘接的方法，其特征在于，对待粘接牙齿的粘结面进行处理，然后涂布粘接剂，在粘接剂固化前通过连接产生负压装置的吸嘴或吸盘将待粘接牙齿的粘结面周围密封包围住，使待粘接牙齿的表面产生负压，然后撤出负压回归自然大气压即常压或进一步加压，当待粘接牙齿的表面产生负压的时候，待粘接牙齿的粘结面中的空隙，主要为牙本质小管中的气体因负压而排出，当回归常压或加压时，覆盖于待粘接牙齿的粘结面的、可流动的粘接剂顺势深入地渗入到牙本质小管内，即有效增加粘接剂渗入牙本质的深度和与牙齿的密合程度，有效增加了粘接面积,同时也有效增加了粘接固位。
2.根据权利要求1所述的方法，其特征在于，该负压-常压或加压的过程反复进行。
3.根据权利要求1所述的方法，其特征在于，所述的负压为压力低于常压0.01—0.09MPa的压力即-0.09—-0.01MPa,所述的加压为压力高于常压0.01—0.20MPa的压力。
4.根据权利要求1所述的方法，其特征在于，吸盘或吸嘴采用柔性材料，吸嘴或吸盘一端开口与产生负压装置连接，另一端开口能够将待粘接牙齿的粘结面周围密封包围住，然后产生负压装置使得待粘接牙齿的粘结面产生负压。
5.根据权利要求1所述的方法，其特征在于，吸盘或吸嘴与产生负压装置之间附加采用拐角装置连接。
6.根据权利要求1所述的方法，其特征在于，该方法也能够用于粘接用的预处理剂，即将粘结剂替换为预处理剂。
7.根据权利要求1所述的方法，其特征在于，该方法适用于牙釉质粘接及窝沟封闭。
CN201610280365.3A 2016-04-29 2016-04-29 一种负压改善牙本质粘接的方法 Expired - Fee Related CN105950034B (zh)

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CN106890779A (zh) * 2017-01-16 2017-06-27 首都医科大学附属北京口腔医院 一种体外负压改善口腔修复体粘接的方法
CN109394371B (zh) * 2018-12-17 2021-05-11 中南大学湘雅医院 口腔粘接剂取出装置及其口腔粘接剂取出方法
CN111888022B (zh) * 2020-08-11 2021-12-14 泰安市东方义齿有限公司 一种义齿的一次成型制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299919A1 (fr) * 1987-07-16 1989-01-18 Meditec S.A. Equipement pour le traitement des racines dentaires
CA2079528C (fr) * 1991-10-18 2004-11-30 Jean Grosrey Appareil d'obturation par le vide de canaux radiculaires dentaires
CN103070729A (zh) * 2012-12-27 2013-05-01 中国人民解放军第四军医大学口腔医院 一种促进树脂渗入牙齿结构内部的装置及方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299919A1 (fr) * 1987-07-16 1989-01-18 Meditec S.A. Equipement pour le traitement des racines dentaires
CA2079528C (fr) * 1991-10-18 2004-11-30 Jean Grosrey Appareil d'obturation par le vide de canaux radiculaires dentaires
CN103070729A (zh) * 2012-12-27 2013-05-01 中国人民解放军第四军医大学口腔医院 一种促进树脂渗入牙齿结构内部的装置及方法

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