The Clinic Nurse Is Asked by the Mother of a 15-Month-Old

The clinic nurse is asked by the mother of a 15-month-old, "I am worried about my child's thumb sucking and its effects on tooth alignment.  What should I do?"  What is the nurse's best response?

A) "As long as your child's thumb sucking stops by age 2-3 years when all of the primary teeth have erupted, there is little concern."
B) "Because your child already has teeth, it is important to implement a plan to stop the thumb sucking as soon as possible."
C) "Newer research shows that thumb sucking has little effect on a child's teeth."
D) "The risk for misaligned teeth occurs when thumb sucking persists after eruption of permanent teeth."