Neglected cavities in primary teeth and early stages of permanent teeth can and frequently do lead to problems in the developing jaws and permanent dentition. Primary teeth, or baby teeth are important for proper chewing and obtaining nutrition, providing space for the permanent teeth and guiding them into the correct position, and permitting normal development of the jaw bones and muscles. They also aid in the development of speech and add to an attractive appearance. Untreated chronic cavities at young ages increase the microbiome to negatively affect permanent teeth into the patient's adulthood. While the front 4 teeth last on average to the age of 6-8 years of age, the back teeth (cuspids and molars) aren’t replaced until age 10-13.