The father of a child with extensive decay of the primary molars presents to the SAIT Dental Clinic and wants the dentist to " just to pull the molars out " . He does not see the need to restore " baby teeth " if they are just going to fall out anyway . You notice that there is already a loss of space on the maxillary arch caused by past tooth loss due to decay , because the permanent teeth are not erupting in the proper sequence . How can you convince the father that the primary teeth are important , and the decay restored ? What do you need to stress with the father to help prevent further primary tooth loss ?