14 January 2015

不要病从口入先护好牙齿为重

  牙齿,与其他人体器官一样,都是非常重要的,虽不致缺一不可,但却是我们保住容貌的第一防线。

 

  为什么会说牙齿与容貌有关,因为牙齿是孤形排列,把脸部支撑起来。当其中一个部位悬空后,脸部会因为失去支撑而跟着垮下来,所以能完整保护整副牙,就可以维持脸部完整,即使非不得已拔掉一颗,也要配戴假牙,以维持牙齿的完整性。

 

  “再者,如不填补回空洞,旁边的牙也会因为失去依靠而移位,松脱,最终可能被逼拔掉,所以拔牙之后一定要做假牙填补回去。很多老人因为牙齿逐渐退化脱落后,没有做假牙填补空隙,以致脸部变形,所以牙齿对我们的样貌有很大的影响。”

   
保住容貌,牙齿一颗都不能少。

  

                  

                  

                   

    牙齿就如人体其他器官一样,会随着年龄而退化,但如果能做到每年定期检查,趁早知道牙齿出现毛病,及早治疗,就可以避免拔牙。

 

   “第一及第二阶段的蛀牙,可以通过各种治疗来拯救损坏的牙齿,但若蛀牙情况已经深入到牙龈,唯有拔掉或植牙。”

 

    医学进步,牙医也不落人后,很多以前认为不能补,就必须拔掉有问题的牙齿,现在都已经有了各种崭新技术可以保住牙齿,如根管治疗(root canal therapy)俗称的“挑牙根”或植牙,都可以保留真牙的牙齿技术。

 

     当牙齿出现不正常情况时,最好马上就医,如发现牙齿松动,可能是牙龈疾病,如能在牙齿开始出现松动时就治疗,或许就能保住牙齿,而不是把它视为牙齿自然退化的现象。


     牙龈疾病,又称牙周病,是最常见的口腔问题之一,其成因是牙齿周围的软组织和骨骼受到破坏,可能会造成牙齿脱落。而破坏者就是我们经常吃进嘴里,却没有清洗干净的食物残渣,久而久之就变成牙石,造成牙周病。

 

      他表示,牙周病是可以治疗的,但一些人却把它视为老人问题,不予理会。其实,只要把牙龈的细菌清楚,就能让牙齿“长寿”多几年。

    





           

 

 

  一些人体疾病可能也是通过口而感染的,如高血压,肺病,糖尿病等,尤其是糖尿病更是直接与牙龈有关。如牙龈细菌严重,就会直接引发各种并发症,如糖尿病,进而影响心脏,引起心血管阻塞,因为口腔里的细菌可以通过血管攻击心脏

                                


   饮食习惯是决定我们牙齿寿命期的关键,就如我们都知道糖对牙齿不好,会引起蛀牙,但不表示不可以吃糖,只要记住任何食物都可以吃,不过记得吃后要刷牙,或漱口, 避免牙腔与细菌同在,导致蛀牙。



   若根据这种说法, 一天三餐就要刷3次牙。但一些专家却提出牙齿不要刷太多次, 早晚一次就足够, 否则会损坏牙齿。其实是应该吃过一餐就刷牙, 但不是用力去刷。

想要一颗健康的牙齿,必须养成良好的饮食习惯,保持口腔卫生清洁。












01 January 2015

DENTINE HYPERSENSITIVITY



Sensitivity occurs due to loss of enamel (outer most layer of crown structure) or cementum (outer most layer of root structure) which leads to the exposure of the underlying dentin. So the main reason of sensitivity is exposure of dentin.


How do you know if you have sensitive teeth?

You may have sensitive teeth if you experience short, sharp pain in response to cold, heat, and pressure. Common triggers of sensitive teeth can be
- Cold or hot drinks
- Cold air
- Some dental proceduresSome of the most common causes of sensitive teeth include:

abrasion cavity 

attrition due to 








Why dentine layer exposed?
Receding Gums
Receding gums can be caused by conditions such as gum disease, which can expose the tooth's dentine and cause sensitivity. In contrast, brushing too hard with hard bristle toothbrush also will damage the tooth surface.
Brushing
Brushing too vigorously and hard bristle toothbrush can cause receding gums, causing further exposure of the dentine.
Gum Disease
When gum disease gets worse and damages the tissues and bone that support the teeth. One sign of periodontitis is sensitive teeth, as the receding gums leave dentine exposed. 
Teeth Grinding
If you grind your teeth when you sleep or during the day, you may be wearing down enamel.

  •        Prevent gum disease by practice good oral hygiene.
  •      Use a toothpaste specially formulated to treat the pain of sensitive
               teeth
  •      Don't brush too hard.
  •      Use a soft toothbrush, preferably one designed especially for sensitive 
               teeth
  •      Avoid acidic foods that can wear away tooth enamel, such as wine, 
              vinegar salad dressings and soft drinks.
  •      Avoid grinding your teeth. Ask your dentist about a mouth guard for 
              night time use.
  •       See your dentist for regular check-ups, dental care recommendations and advice for your        
              sensitive teeth.