Dear friend. Permanent teeth start to erupt from the age of 6 yrs and complete the eruption process by age of 16 to 17 yrs. Avoid breast feeding or bottle feeding at night.  if need arises clean the baby's mouth with sterile cotton or make the baby sip a bit of water after milk feeding. It's not the sugar which is main culprit causing cavities rather refined food product made of Maida. Include lot of crushed fruits and vegetables in the babies diet plan which contains lot of fibers. make sure parents good oral hygiene of babies mouth. regularly visit the dentist for all the needful.

most children will have their primary teeth by 30 months of age..but in few cases it might be delayed in eruption schedule due to some reasons.. you have to maintain good oral hygiene for her..use soft bristle toothbrush and apply gentle pressure while brushing.. it should be done twice daily.. control sugar content in her diet.. if you notice any sign of tooth decay like brown spots or pits on the teeth,take her to pediatric dentist for checkup... and do visit dentist once in a 6 months...

Your baby is two years. In about 27-30 months pretty much all primary teeth will be out. You can continue milk, cheese, buttermilk,beans, wheat and nuts which are rich in calcium. Keeping what comes clean and biannual  initiatives to meet up with dentists early in their growing years will help keep their teeth in prime shape. Other  dentists have already mentioned excellent ways to keep and maintain the child's teeth. Hope this helps too.