 |
|
АкушерствоАнатомияАнестезиологияВакцинопрофилактикаВалеологияВетеринарияГигиенаЗаболеванияИммунологияКардиологияНеврологияНефрологияОнкологияОториноларингологияОфтальмологияПаразитологияПедиатрияПервая помощьПсихиатрияПульмонологияРеанимацияРевматологияСтоматологияТерапияТоксикологияТравматологияУрологияФармакологияФармацевтикаФизиотерапияФтизиатрияХирургияЭндокринологияЭпидемиология |
Video.Caries1. While watching fill in the missing words. Use the words from the box.
1) There are three tissue layers that make up the tooth: the _______, the dentin, the central region known as the _______. 2) Bacterial acid from plaque begins to _____ the surface of the tooth. 3) The enamel contains no cells, so no _____ is experienced at this point. 4) As the _____ progresses bacteria can penetrate the enamel. 5) With the destruction of pulp tissue this leads to _________ and infection.
2. Watch the video extract once more and decide if the sentences are True or False. 1) There are two tissue layers that make up the tooth: the enamel and the dentin. 2) Bacterial acid begins the process of tooth decay. 3) The enamel contains a lot of nerve cells. 4) As the cavity progresses bacteria can penetrate the enamel and dissolve the crater in the dentin layer. 5) Eventually the cavity is extended into the soft pulp.
3. Summarize the information from the video and answer the questions. Use these questions to speak about the caries. 1) What are the tissue layers that make up the tooth? 2) How does the process of tooth decay begin? 3) Does the enamel contain nerve cells? 4) What happened as the cavity progresses? 5) What is the pulp abscess made up?
Дата добавления: 2015-02-05 | Просмотры: 516 | Нарушение авторских прав |