“牙医”初体验

    发布时间:2016-11-07 15:11:12责任编辑:高振中点击次数:682

     “牙医”初体验

    I am a “Dentist”

    大连高中女校12-1 王佳璐 Ella     

    指导老师:周丽玉Cynthia

    选择大学与专业的时间离我们越来越近,我决定通过社会实践的机会了解一下我较为感兴趣的方向。因此这个暑假,我选择了去大连锦绣社区的社区诊所当一名“牙医助理”。

             We are going to choose our universities and major soon, so I decided to know about my interested major during the community service. I went to a community clinic in Dalian to be a “dental assistant” this summer.

     

    口腔科是一个年轻的女大夫,没正式开始前,她先带我简单参观了一圈。屋子不算大,在中间把放着两个治疗椅,椅子旁边的托盘里放着治疗时需要使用的工具。窗台上放着几盆花,旁边摆放着许多牙齿模型和假牙成品。窗台旁边有个消毒柜,旁边是一张桌子,上面有很多关于牙科的书籍。

            In the clinic, the doctor is a young woman. Before I started my job, she showed me around the clinic. The room of stomatology department is not too big. There are two dental chairs in the middle of the room, and lots of instruments that use for treatment are placed beside them. On the sill, there are some flowers and some models of teeth and false teeth. Beside the sill, there is a disinfection cabinet, and a desk with lots of dental books.

    由于牙医是十分精密严谨是工作,我不能做太技术性的工作,所以大夫教我了口腔科学生学习的第一个动手操作——取模。

            Because dentist is a very precision work, I could only do some easy and basic job. Therefore the doctor taught me the easiest work, making the model.

    口腔取印模过程

    Making teeth model

    材料:上下颌托盘、海藻酸盐印模材、齿科超硬石膏、调拌刀x2、调拌碗x2

        (取模需要的材料如上)口腔取模通过先阴后阳如印章般可以较为准确地表现出一个人的牙齿形态。

            Making teeth model is like engrave a seal, using the technique of both intaglio and rilievi; so that the model can reflect someone’s teeth accurately.

     

    她决定我先在她的指导下与她一起做一遍,然后再让我独自练习。她先舀一勺印模材倒入一个调拌碗中,然后打开水龙头边接水边用调拌刀搅拌,加少许水后,关闭龙头开始搅拌,把碗放在掌心,“8”字快速搅匀。接下来把已搅匀的印模材填充进上下颌托盘中(依据患者需要选择上颌/下颌),填充均匀。理论上,之后需就会把填好的模具放入患者的口腔中,顶到牙上,使整个牙嵌入其中,保持静止,1-2分钟之后,印模材变硬后取出,牙齿形态已完整的印在上面,这就相当于阴刻。但是因为不能用真人试验,大夫就拿了一个以前制作的患者牙齿形态石膏像来充当患者口腔,把石膏扣入托盘里的印模材中,1分多钟后,也出现了同样的效果。取完模后,开始调拌石膏,用阳刻的方式做出口腔形态。与印模材相似,舀一勺倒入另一个调拌碗中,接水搅拌,水量要比之前的多一些,使石膏更稀一点。之后把调好的石膏一点点加入到印出牙齿形态的印模材里,将其填充满,边填边轻轻震动,以震破其中的小气泡。石膏凝固需要40分钟的时间,在这40分钟里,石膏的表面会从湿润变为干燥,在后20分钟里,石膏的温度会上升,并在完全凝固之前开始下降。等石膏的温度降到室温,我小心地将它从印模材上取下来,就这样我做完了第一个人体牙齿模型。将两个模型放在一起对比,相似度还算挺高!

            The doctor wanted me to make a model with her at first, and let me practice more times after we finished. She put some impression material in a mixing bowl, added a little bit water and mixed it very quick as a shape of “8”. Then put the mixture in the mould and put it into patient’s mouth for 1-2 minutes to copy the shape of teeth. Because there was no patient, we used an old model as the human teeth. After 1-2 minutes, take the model out of the mouth, and we started to make gypsum. Similar as making impression material, put the gypsum powder in the bowl, added a little bit water and mixed it quickly. Then put it into the teeth print in the impression material. After 40 minutes, the gypsum became very hard. Take it out from the impression material carefully and I got my first production!

    第二天,大夫给我上了一堂“理论知识课”。她给我讲解了牙齿构造、牙齿不健康的原因、为什么洗牙很重要等专业性知识。她告诉我,中国人对洗牙存在误区,许多人从未进行过洗牙因为他们认为或听说洗牙对牙齿有很大危害。下面我就写一下关于洗牙的知识与误区。

            On the next day, I learned a lot of knowledge of teeth like the structure of teeth, why teeth could be unhealthy, how important the toothwash is. The doctor told me that lots of Chinese people have misunderstanding on toothwash. There are many people never did toothwash because the heard it is bad for teeth. Let me talk about knowledge and misunderstand of tooth cleaning.

    洗牙

    Toothwash

        许多人认为洗牙对牙齿不好,因为他们洗牙后会出现三种感觉:第一,洗牙后牙齿会对冷热酸甜敏感、疼痛。第二,洗牙后牙齿间出现缝隙。第三,洗牙后发现牙齿变松。下面我来解释一下造成这三种感觉的原因。

            Many people think toothwash is bad for teeth because they got these three feelings after washing their teeth: First, teeth felt hurt with hot, cold, sweet and sour; Second, tiny gaps showed after washing their teeth; Third, they got gomphiasis after toothwash.

    如上图所示,口腔内,牙齿之间有一个三角形的缝隙,是由牙龈填充的,然而如果使用不恰当的剔牙方式(如牙签)会造成牙龈受伤萎缩,露出牙根,牙龈本来的地方就会被牙蚀占有,刷牙不到位并且不进行洗牙的话,堆积的牙蚀会将牙根露出的地方覆盖,使其感受不到冷热,并逐渐向下压迫下面的牙龈萎缩,当牙根萎缩到一定程度,牙齿就会松动。洗牙将这些牙蚀清理掉,使被牙蚀覆盖的牙根漏了出来,牙髓能够通过牙本质小管感受到外部的刺激,能在接触冷热酸甜时疼;牙齿间的缝隙失去了原有的牙蚀,会感觉牙齿间的缝隙变大;牙蚀的堆积会使本已松动的牙齿保持固定,但是当牙蚀去除时会觉得没有东西继续拉扯固定它,使人感觉牙齿变松。人们因为感受到了以上三点,会产生洗牙不好的观念,以此以讹传讹,对更多的人造成了影响,当几个人去开始尝试洗牙的时候,他们的牙蚀已经积累了很多,以至于让去除后他们自己产生这样的感觉,继续告诉被人洗牙不好。没有专业的普及,人们的想法不会轻易被改变,恶性循环继续下去,会使更多人的口腔健康受到威胁。

              In human’s mouth, there are several triangle spaces between every two teeth which are filled by gingival. If you use wrong way to pick your teeth, you may hurt your gingival and make it atrophy. Therefore the fang will came out, and the spaces of gingival will be replaced by dental etching. If you do not brush your teeth properly or go to do the toothwash, the cumulate dental etching will cover the fang which came out and make it cannot feel hot and cold. The dental etching will continue oppressing the gingival under it atrophy. When the gingival atrophy to a certain level, it will make the tooth die.  Toothwash can clean up those dental etching, make the fang came out again. Dental pulp can feel the stimuli through the dental tubule and feel pain from stimuli. The tiny gaps lose the original dental etching and make you feel the gaps become bigger. The cumulate dental etching make the loose teeth remain stationary, and when the dental etching is removed, people will feel the teeth become looser.

     

    理论知识课结束,我还当了她的“牙医助理”,当有患者来时,帮忙放倒座椅、拉上窗帘、拿杯子接水。虽然都不是什么太难太正规的任务,我仍旧学到了很多,不仅是关于牙齿健康的知识,还有对我这个领域的深层认识。

    After the “theoretical knowledge lesson”, I worked as her assistant. When patients came, I help them to put the chair in the right position, closed the curtain and give them cups of water. Although they are not hard or official works, I learned a lot from them. Not only the knowledge about tooth health, but also a deep understand of this job.