After sometime , toxins released by bacteria in the plaque irritate the gum and cause inflammation , leading to periodontal disease 牙垢膜中的一些细菌分泌毒素,令牙周组织出现发炎的徵状。
The early signs of periodontal disease are redness and swelling of the gingivae which often bleed easily especially upon tooth brushing 这些徵状包括牙龈红肿,容易出血(尤其在刷牙的时候) 。
After sometime , toxins released by bacteria in the plaque irritate the gum and cause inflammation , leading to periodontal disease 牙垢膜中的一些细菌分泌毒素,令牙周组织出现发炎的徵状。
Periodontal curettes , dental scalers and excavators - part 3 : dental scalers - h - type iso 13397 - 3 : 1996 ; german version en iso 13397 - 3 : 1996 牙周刮匙牙齿刮刀器和钻孔器.第3部分:牙齿刮刀器. h
It helps to analysize the stress and strain condition of periodontal tissues in order to improve the treatment system 准确认识牙周膜的弹性模量可以分析牙周组织的应力与应变关系,完善矫治系统。