牙齿缺失 危害多多
时间:2007-04-20 来源:sjxingyun
俗话说“牙好胃口就好”。据有关专家调查报告:“我国老年人90%以上都有不同程度的牙齿缺失,而且仅有30%的老年人镶配了假牙。”有很多老年人认为:人老了能凑合着吃饭就行了,镶牙怪麻烦的,等全口牙掉光了再镶牙吧。这样的想法是不对的。无论什么原因造成的个别牙齿缺失或牙齿全部缺失,由于破坏了牙列的完整性,会对身体健康带来不同程度的影响。
牙齿是人体的重要器官之一,正常人的牙齿,露在口腔里面的称为“牙冠”,埋在上下颌骨内的称为“牙根”,牙冠和牙根互相支持,自然排列成牙弓,保持着牙弓的平衡与稳定,以便发挥正常的功能,如前牙可切割、撕裂食物,后牙可以磨碎食物,并且起到支持面部软组织的作用,保持面下部的丰满,促进食物的咀嚼与消化,增进人体的健康。
牙齿掉了会对健康有哪些危害呢?一、咀嚼功能减退或丧失
在正常情况下,食物进入口腔后,被牙齿逐渐嚼碎,并不停地混入唾液形成食团,然后经食管进入胃肠进行消化吸收。食物被咀嚼的同时也对口腔起到刺激的作用,引起神经反射,一方面促进胃肠液的分泌,帮助消化;另一方面也促进了胃肠蠕动,加快营养成分的吸收。当个别牙齿缺失或牙列缺失后,咀嚼效率随之降低或丧失,唾液分泌减少,胃肠蠕动减慢,未嚼碎的食物进入胃肠,胃肠系统的负担随之加重,从而导致胃肠功能紊乱,影响人体对营养成分的吸收,严重者机体可出现消化系统的疾病。二、影响面形美观
面形在人体美中占有重要的位置,牙齿和眼睛又是影响面形最重要的器官。面部外形的美观与谐调,是由完整的牙列来维持的,人们常说:“美貌还需美牙衬,有一口健康洁白、整齐的牙齿,才能有灿烂的笑容。”当人们缺一个前牙,甚至前牙缺一个切角都会影响面形,缺着牙齿在一定的场合会有失大雅,牙齿全部缺失对面形的影响就更为严重。我们可以想象得到,当您和对方谈笑时看不到对方的牙齿,而是舌头的大部分和两侧的口腔黏膜,让人联想到他的身份、地位和经济状况,必然会影响到他的社会交往活动。牙齿全部缺失后,由于上、下颌骨间失去了牙齿的支持,而且牙槽骨或整个颌骨因缺乏正常咀嚼力量的刺激,将会逐渐退变、吸收,造成面下部高度变短,面颊部和周围肌肉松弛,唇、颊部内陷,口角下垂,面部变形及皱纹增多,整个人看起来要比同龄人显得苍老。三、影响发音功能
语言是由口腔形成的,牙齿又是发音的辅助器官,人们说话、唱歌要想发音准确,离不开牙齿。牙齿与舌、唇、颊肌相互配合,控制着气流经过口腔的路线和流量,从而发出不同的声音,构成不同的语句,表达各种意愿和思想。当个别后牙缺失,对发音影响不大,当缺牙较多时,特别是前牙缺失或全部牙齿缺失时,可造成不同程度的发音障碍,说话既费力又不清楚。因为舌尖失去了原有的发音定位标志,气流经过的路线中少了一道控制的关口,故发音不清楚、不准确,听起来就像漏风一样。尤其是唇齿音和舌齿音更不清楚,甚至出现发音失真等情况。四、对剩余牙有不利影响
牙齿承受的咀嚼力是有一定限度的,当个别牙齿缺失后,咀嚼力集中在余留牙上,由于咀嚼力超过了余留牙的承受限度,致使余留牙齿造成创伤而产生牙周膜水肿、牙龈萎缩、牙槽骨吸收、牙齿松动等牙周疾患。如果长时间没有镶牙,可能会导致其相邻的真牙向这个缺牙空隙内倾斜、移位,缺牙空隙相对应的牙齿将因无对抗力量而逐渐伸长,咬合关系和牙齿排列出现错乱,致使剩余牙齿失去正常的邻接关系,造成食物嵌塞,亦是导致牙周病的病因之一。五、会造成颞下颌关节紊乱症
当牙齿缺失较多时,剩余牙齿倾斜、移位或向对侧伸长等现象,使咬合关系紊乱,阻碍了下颌骨向前伸或左右运动。有时因一侧缺牙,用另一侧咀嚼,形成偏侧咀嚼习惯,肌肉出现张力不平衡,长此下去肌肉会出现疲劳,髁突后移,关节盘水肿,关节区会感到不适,甚至出现疼痛、张不开口、关节弹响等症状,临床上称为颞下颌关节紊乱症。
因此,特别提醒老年朋友们,无论何种原因造成的缺失牙,也不论缺失牙齿数目的多少,均应及时镶配假牙,以便恢复牙列的完整及功能,这也有利于保持余留牙牙槽骨和其他口腔组织的健康。(6)特回答贵公司某月某日函所叙述有关事项等入党申请书
1. I have the pleasure of stating, in answer to your FFXI Gil inquiry of the 4th inst, that
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牙齿是人体的重要器官之一,正常人的牙齿,露在口腔里面的称为“牙冠”,埋在上下颌骨内的称为“牙根”,牙冠和牙根互相支持,自然排列成牙弓,保持着牙弓的平衡与稳定,以便发挥正常的功能,如前牙可切割、撕裂食物,后牙可以磨碎食物,并且起到支持面部软组织的作用,保持面下部的丰满,促进食物的咀嚼与消化,增进人体的健康。
牙齿掉了会对健康有哪些危害呢?一、咀嚼功能减退或丧失
在正常情况下,食物进入口腔后,被牙齿逐渐嚼碎,并不停地混入唾液形成食团,然后经食管进入胃肠进行消化吸收。食物被咀嚼的同时也对口腔起到刺激的作用,引起神经反射,一方面促进胃肠液的分泌,帮助消化;另一方面也促进了胃肠蠕动,加快营养成分的吸收。当个别牙齿缺失或牙列缺失后,咀嚼效率随之降低或丧失,唾液分泌减少,胃肠蠕动减慢,未嚼碎的食物进入胃肠,胃肠系统的负担随之加重,从而导致胃肠功能紊乱,影响人体对营养成分的吸收,严重者机体可出现消化系统的疾病。二、影响面形美观
面形在人体美中占有重要的位置,牙齿和眼睛又是影响面形最重要的器官。面部外形的美观与谐调,是由完整的牙列来维持的,人们常说:“美貌还需美牙衬,有一口健康洁白、整齐的牙齿,才能有灿烂的笑容。”当人们缺一个前牙,甚至前牙缺一个切角都会影响面形,缺着牙齿在一定的场合会有失大雅,牙齿全部缺失对面形的影响就更为严重。我们可以想象得到,当您和对方谈笑时看不到对方的牙齿,而是舌头的大部分和两侧的口腔黏膜,让人联想到他的身份、地位和经济状况,必然会影响到他的社会交往活动。牙齿全部缺失后,由于上、下颌骨间失去了牙齿的支持,而且牙槽骨或整个颌骨因缺乏正常咀嚼力量的刺激,将会逐渐退变、吸收,造成面下部高度变短,面颊部和周围肌肉松弛,唇、颊部内陷,口角下垂,面部变形及皱纹增多,整个人看起来要比同龄人显得苍老。三、影响发音功能
语言是由口腔形成的,牙齿又是发音的辅助器官,人们说话、唱歌要想发音准确,离不开牙齿。牙齿与舌、唇、颊肌相互配合,控制着气流经过口腔的路线和流量,从而发出不同的声音,构成不同的语句,表达各种意愿和思想。当个别后牙缺失,对发音影响不大,当缺牙较多时,特别是前牙缺失或全部牙齿缺失时,可造成不同程度的发音障碍,说话既费力又不清楚。因为舌尖失去了原有的发音定位标志,气流经过的路线中少了一道控制的关口,故发音不清楚、不准确,听起来就像漏风一样。尤其是唇齿音和舌齿音更不清楚,甚至出现发音失真等情况。四、对剩余牙有不利影响
牙齿承受的咀嚼力是有一定限度的,当个别牙齿缺失后,咀嚼力集中在余留牙上,由于咀嚼力超过了余留牙的承受限度,致使余留牙齿造成创伤而产生牙周膜水肿、牙龈萎缩、牙槽骨吸收、牙齿松动等牙周疾患。如果长时间没有镶牙,可能会导致其相邻的真牙向这个缺牙空隙内倾斜、移位,缺牙空隙相对应的牙齿将因无对抗力量而逐渐伸长,咬合关系和牙齿排列出现错乱,致使剩余牙齿失去正常的邻接关系,造成食物嵌塞,亦是导致牙周病的病因之一。五、会造成颞下颌关节紊乱症
当牙齿缺失较多时,剩余牙齿倾斜、移位或向对侧伸长等现象,使咬合关系紊乱,阻碍了下颌骨向前伸或左右运动。有时因一侧缺牙,用另一侧咀嚼,形成偏侧咀嚼习惯,肌肉出现张力不平衡,长此下去肌肉会出现疲劳,髁突后移,关节盘水肿,关节区会感到不适,甚至出现疼痛、张不开口、关节弹响等症状,临床上称为颞下颌关节紊乱症。
因此,特别提醒老年朋友们,无论何种原因造成的缺失牙,也不论缺失牙齿数目的多少,均应及时镶配假牙,以便恢复牙列的完整及功能,这也有利于保持余留牙牙槽骨和其他口腔组织的健康。(6)特回答贵公司某月某日函所叙述有关事项等入党申请书
1. I have the pleasure of stating, in answer to your FFXI Gil inquiry of the 4th inst, that
2. In reply to your letter of the 5th of May, I have to inform you that (of)
3. I hasten to answer your inquiry of the l5th May, by Lineage 2 Adena stating that
4. We are in receipt of yours of the 5th June, in reply to which we are pleased to state that
5. In reply to yours of the l0th May, relative to..., I would say Anarchy Online Credits that
6. I am in receipt of your favour of the 7th May, and in response I inform you that (of)
7. In response to your letter of l0th May, I wish to say that City of Heroes Influence
8. In answer to your favour of the 5th May regarding... I wow gold reply as follows:
9. Answering your letter of the 8th of February re..., I would say EverQuest Platinum that
10. In reply to your letter of February 8th, I inform you that Everquest 2 Gold (of)
11. Replying to yours of the 8th of February regarding..., I would say that
12. Replying to your favour under date of February 8th re..., I say wow power leveling that
(7)非常遗憾,我们奉告您关于,等。
l. We regret to inform you that Eve Online Isk (of)
2. We are sorry to have to draw your attention to
3. We regret to have to say that RF Online Dalant
4. We regret to advise you that
5. We very much regret to announce you that Second Life Linden
6. It is most regrettable that we have to inform you that (of)
7. It is with our greatest regret that we must inform you that SWG Credits (of)
8. To our greatest regret we must herewith inform you that (of)
9. It is a matter for regret that I have to inform you thatPower leveling (of)
10. It is to be regretted that I must inform you that world of warcraft gold (of)
11. It is with regret and reluctance that we have to inform you that Eq2 Gold (of)
12. It gives us a deep sorrow that we have to announce you that
13. It causes me much sorrow to have to say that FFXI Gil
14. I feel sorry for having to announce wow gold you that
15. I express my sorrow for announcing you that
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