- 
						垢コウ、ク あか dirt, stains 
- 
						シコウ 歯垢 plaque, bacterial plaque, dental plaque - 
										しこう 歯垢 plaque, bacterial plaque, dental plaque 
 
- 
										

コウ、ク
あか
dirt, stains
シコウ
歯垢
plaque, bacterial plaque, dental plaque
しこう
歯垢
plaque, bacterial plaque, dental plaque