Final answer:
Periodontal problems should be treated before starting orthodontic treatment. Deciduous teeth emerge around 6 months, permanent teeth begin emergence around age 6, and wisdom teeth usually come in between ages 17 and 25.
Step-by-step explanation:
If periodontal problems are present, they are treated before orthodontic treatment has been started. Addressing periodontal issues prior to beginning orthodontic work is crucial to ensure the health and stability of the teeth and supporting structures. Proper periodontal health is a foundation for the success of orthodontic treatments, and neglecting existing periodontal issues can result in complications and less effective orthodontic outcomes.
Now, regarding your question about tooth emergence: Deciduous teeth, sometimes known as baby teeth or milk teeth, generally begin to emerge around 6 months of age. Permanent teeth typically start to replace deciduous teeth around age 6-7. Lastly, wisdom teeth, which are the final set of molars, usually emerge in late adolescence or early adulthood, often between the ages of 17 and 25.