The statement above is a false statement. Scientist has not yet been proved that genes play no part or role in one's self-esteem. On the other hand, Maslow believed that to increase one's self-esteem he may need to meet the basic needs to be happy and successful in this.
Well I'd say true because fluorine helps build the outer shell of the teeth. It's basically scrubbing something like car polish. It helps build up protection for the teeth.
It depends on who you get but, in general no. They could rip you off or worse.
