A 6 months old child does not have any tooth in mouth. Normally by what maximum age first tooth should erupt.: (A) 10 to 11 months, (B) 6 to 8 months, (C) 14 to 16 months, (D) All of the above
Answer is A. In primary dentition the variation of eruption has a range of 4-5 months, Since first tooth erupts at an age of 6 months then a variation of 4-5 months can be considered normal.