(1)的功能與范圍：

刷(shua)牙(ya)(ya)(ya)(ya)主(zhu)要是清(qing)潔牙(ya)(ya)(ya)(ya)齒的唇面(mian)與舌(she)面(mian),尤(you)其是牙(ya)(ya)(ya)(ya)齒靠近牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)處及咬合面(mian)。刷(shua)牙(ya)(ya)(ya)(ya)時必須涵蓋一(yi)點(dian)牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)才能(neng)把牙(ya)(ya)(ya)(ya)蓋清(qing)干凈(jing),『涵蓋一(yi)點(dian)牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)』并不代表刷(shua)牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)或牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)。只要把牙(ya)(ya)(ya)(ya)菌斑除掉(diao),牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)自然會恢復健康(kang)。我們推薦的貝氏(shi)法主(zhu)要的優點(dian)是它能(neng)刷(shua)進牙(ya)(ya)(ya)(ya)齦(yin)(yin)(yin)溝內一(yi)點(dian)點(dian),這對牙(ya)(ya)(ya)(ya)周健康(kang)最有幫忙。且貝氏(shi)法簡單易學(xue)。

(2)刷牙(ya)的操作:

1.正確握法,拇指前(qian)伸,比"贊"的手勢.

2.將對準(zhun)牙(ya)(ya)齒(chi)與(yu)牙(ya)(ya)齦交接(jie)的地(di)方,刷(shua)上(shang)顎(e)牙(ya)(ya)齒(chi)時刷(shua)毛(mao)朝上(shang). 刷(shua)上(shang)排牙(ya)(ya)齒(chi)時刷(shua)毛(mao)朝上(shang),涵蓋一點牙(ya)(ya)齦,牙(ya)(ya)刷(shua)作水平短(duan)距離的運動(dong)。刷(shua)下(xia)排牙(ya)(ya)齒(chi)時刷(shua)毛(mao)朝下(xia),依同(tong)樣的要領(ling)刷(shua).

3.刷(shua)毛(mao)與牙齒(chi)呈45-60度角,同時將刷(shua)毛(mao)向牙齒(chi)輕壓,使刷(shua)毛(mao)略(lve)呈圓弧,刷(shua)毛(mao)的(de)(de)側邊也與牙齒(chi)有相當(dang)大的(de)(de)接觸.

牙(ya)(ya)刷與牙(ya)(ya)齒(chi)呈45~60度角,并輕壓向牙(ya)(ya)齒(chi),使刷毛的側邊也(ye)與牙(ya)(ya)齒(chi)接觸,但(dan)刷毛不(bu)可被牙(ya)(ya)齒(chi)分岔.

4.牙刷(shua)定位(wei)后,開始作(zuo)短距離(li)的水平運動,兩(liang)顆(ke)(ke)、兩(liang)顆(ke)(ke)牙前(qian)后來回約刷(shua)十次。

5.刷(shua)牙(ya)(ya)時張大(da)嘴,看到(dao)上排右(you)邊(bian)(bian)最后(hou)一顆牙(ya)(ya).然(ran)后(hou)由(you)右(you)后(hou)方頰側開始(shi),刷(shua)到(dao)左(zuo)(zuo)邊(bian)(bian);然(ran)后(hou)左(zuo)(zuo)邊(bian)(bian)咬合面、左(zuo)(zuo)邊(bian)(bian)舌側再回到(dao)右(you)邊(bian)(bian)舌側,然(ran)后(hou)右(you)邊(bian)(bian)咬合面.如此循(xun)序(xu)的刷(shua),便不會有(you)遺漏.刷(shua)牙(ya)(ya)的順(shun)序(xu)有(you)一口訣:右(you)邊(bian)(bian)開始(shi),右(you)邊(bian)(bian)結束(shu).

刷牙要有順序,才(cai)不(bu)會遺漏,右(you)邊開始,右(you)邊結束(shu).

6.刷咬合面時,也(ye)是兩(liang)(liang)顆(ke)兩(liang)(liang)顆(ke)牙,來回地刷.

7.上顎(e)后牙(ya)的舌側是較不易刷的地(di)方,刷毛仍對準牙(ya)齒(chi)與牙(ya)齦的交(jiao)接處,刷柄(bing)要貼(tie)近大(da)門牙(ya).

刷后牙舌側時(shi),刷柄應貼近大門牙.

刷(shua)右邊舌側時(shi)刷(shua)柄(bing)自然會朝(chao)向左(zuo)邊,此時(shi)我們建(jian)議(yi)用左(zuo)手(shou)(shou)刷(shua)右邊的后牙舌側,就順手(shou)(shou)多(duo)了(le).

刷(shua)后牙舌側(ce)時,刷(shua)柄自然伸向(xiang)對(dui)側(ce),固(gu)用(yong)對(dui)側(ce)手(shou)刷(shua)更方便(bian).就(jiu)像掏里邊的口袋用(yong)對(dui)側(ce)手(shou).這是(shi)很(hen)(hen)簡地(di)人體工學,剛開始可能有點不習慣(guan),但稍加練習,很(hen)(hen)快就(jiu)會熟悉.

8.此外,刷(shua)后牙的頰(jia)側(ce)用同側(ce)手(shou),即刷(shua)右邊頰(jia)側(ce)用右手(shou)，左(zuo)邊頰(jia)側(ce)用左(zuo)手(shou).

刷頰(jia)側(ce)用同側(ce)手,同時刷柄可(ke)將臉頰(jia)撐(cheng)開(kai),以利(li)視線. 就像掏外邊的口袋用同側(ce)手.同時刷柄可(ke)撐(cheng)開(kai)臉頰(jia).以便利(li)于(yu)觀察.

因此我們有一口(kou)訣:刷(shua)牙右(you)邊(bian)開始(shi),右(you)邊(bian)結束;刷(shua)頰側用同(tong)側手,刷(shua)舌側,用對側手.

9.刷完(wan)上面(mian)的牙齒(chi)(chi),再(zai)用(yong)同(tong)樣的原(yuan)則與方法,刷下面(mian)的牙齒(chi)(chi).