World Oral Health Day ni akọkọ ti iṣeto ni 2007, Ọjọ ibẹrẹ fun ibimọ Dr Charles Gordon jẹ Oṣu Kẹsan 12, Nigbamii, nigbati ipolongo naa ti ṣe ifilọlẹ ni kikun ni 2013, Ọjọ miiran ti yan lati yago fun FDI World Dental Congress jamba ni Oṣu Kẹsan.Níkẹyìn yipada si March 20, Nibẹ ni o wa th ...
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