1、牙周病病因及预防宣牙周病病因及预防宣讲讲牙周病病因及预防宣讲2牙周病病因及预防宣讲3牙周病病因及预防宣讲4牙周病病因及预防宣讲5牙周病病因及预防宣讲6牙周病病因及预防宣讲7牙周病病因及预防宣讲8牙周病病因及预防宣讲9牙周病病因及预防宣讲10牙周病病因及预防宣讲11牙周病病因及预防宣讲12牙周病病因及预防宣讲13牙周病病因及预防宣讲14牙周病病因及预防宣讲15牙周病病因及预防宣讲16牙周病病因及预防宣讲17 白垢（materia alba）是疏松附着在牙面、修复体表面、牙石和龈缘上的软而带有粘性的沉积物，是由微生物、脱落上皮细胞、白细胞、唾液蛋白、脂类及少量食物碎屑混合而成。牙周病病因及预防宣讲
2、18牙周病病因及预防宣讲19牙周病病因及预防宣讲20牙周病病因及预防宣讲21牙周病病因及预防宣讲22牙周病病因及预防宣讲23牙周病病因及预防宣讲24牙周病病因及预防宣讲25牙周病病因及预防宣讲26牙周病病因及预防宣讲27牙周病病因及预防宣讲28牙周病病因及预防宣讲29牙周病病因及预防宣讲30牙周病病因及预防宣讲31牙周病病因及预防宣讲32牙周病病因及预防宣讲33二、菌斑控制的临床评估34牙周病病因及预防宣讲35牙周病病因及预防宣讲36牙周病病因及预防宣讲37牙周病病因及预防宣讲38牙周病病因及预防宣讲39牙周病病因及预防宣讲40牙周病病因及预防宣讲41牙周病病因及预防宣讲42牙周病病因及预防宣
3、讲43牙周病病因及预防宣讲44牙周病病因及预防宣讲45牙周病病因及预防宣讲46牙周病病因及预防宣讲47牙周病病因及预防宣讲48牙周病病因及预防宣讲49牙周病病因及预防宣讲50牙周病病因及预防宣讲51牙周病病因及预防宣讲52牙周病病因及预防宣讲53牙周病病因及预防宣讲54牙周病病因及预防宣讲55牙周病病因及预防宣讲56牙周病病因及预防宣讲57牙周病病因及预防宣讲58牙周病病因及预防宣讲59牙周病病因及预防宣讲60牙周病病因及预防宣讲61牙周病病因及预防宣讲62牙周病病因及预防宣讲63牙周病病因及预防宣讲64牙周病病因及预防宣讲65牙周病病因及预防宣讲66牙周病病因及预防宣讲67牙周病病因及预防宣
4、讲68牙周病病因及预防宣讲69牙周病病因及预防宣讲70牙周病病因及预防宣讲71牙周病病因及预防宣讲72牙周病病因及预防宣讲73牙周病病因及预防宣讲74牙周病病因及预防宣讲75牙周病病因及预防宣讲76牙周病病因及预防宣讲77牙周病病因及预防宣讲78 牙周病病因及预防宣讲79牙周病病因及预防宣讲8082牙周病病因及预防宣讲83牙周病病因及预防宣讲84牙周病病因及预防宣讲85牙周病病因及预防宣讲86牙周病病因及预防宣讲87牙周病病因及预防宣讲88牙周病病因及预防宣讲89牙周病病因及预防宣讲90牙周病病因及预防宣讲91牙周病病因及预防宣讲92牙周病病因及预防宣讲93牙周病病因及预防宣讲94牙周病病因及预防宣讲95牙周病病因及预防宣讲96
