back tooth

I brush my back teeth.

私は奥歯を磨きます

I brush the back teeth right at the back.

私は奥の方の奥歯を磨きます

I brush the back teeth right at the back in front of the sink.

私は洗面台の前で奥の方の奥歯を磨きます

I brush the back teeth right at the back in front of the sink after a meal.

私は食後に洗面台の前で奥の方の奥歯を磨きます

I brush the back teeth right at the back in front of the sink with my younger brother after a meal.

私は弟と食後に洗面台の前で奥の方の奥歯を磨きます