Home » General Knowledge MCQS » When World Oral Health Day Is Celebrated?When World Oral Health Day Is Celebrated? by A. March 20 B. April 20 C. June 20 D. July 20 Related Posts:Which is the number one game in the World?Pakistan won the Cricket T20 World Cup in________?The world’s first ATM machine located in ___________?Who is the world’s longest reigning living monarch?The world’s most famous physicist, Stephen Hawking has…