My son has been very attached to his binky since 8 weeks. It is a newborn one, not the orthodontic kind. It has brought his 4 top front teeth forward and created a gap in his bite. Our dentist told us it isn't a huge deal until 2.5/3 when the adult tooth buds start forming in the gums. Which is why we're in the process of weaning him off of it. He uses it now only for nap and bedtime.
Massage therapist and artist, wife to English DH since 2002, Mummy to Oliver Finn 10/20/07 and Eamon Anthony 12/2/2010