How can I remove stains and whiten my teeth "naturally" as well as disinfect my oral mouth?

Thank you.
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i would say brush ur teeth every 3 times a day. oh and answer my question http://answers.yahoo.com/question/index;_ylt=Ai_QKEIpKVj1T3AtAG_W7gDsy6IX;_ylv=3?qid=20090615142436AAC6YUS
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