You can protect the enamel by cutting off sugary diet, limiting the use of fruit juices and stopping having aerated drinks.

If it is controlled diabetes you can undergo surgical treatment , else you will have to wait n get it under control . If it is very advanced you may have to have surgery which will help you to retain your natural teeth

It is recommended that you consult with a maxillofacial surgeon to address any concerns related to jaw/chin surgery. Given your history of a past injury, it is important to thoroughly evaluate any anatomical changes to ensure that the desired outcome can be achieved. In order to determine the best course of action, a thorough consultation with a maxillofacial surgeon is recommended.

Malpositioned teeth can lead to problems such as difficulty in chewing and talking. It is the result of genetic factors or the acquisition of certain habits like sucking thumb. Braces are a well-known method for fixing such problems. They slowly shift your teeth to the desired position. Do not be afraid, as many teenagers your age wear braces, and is completely normal. But, you can visit an orthodontist to learn more about it.

You might be talking about temporomandibular joint disorder (TMJ). Such a scenario can occur when the joint that attaches your jawbone to the skull gets stressed out. Among the symptoms are pain, pressure, and trouble opening your mouth. Teeth grinding, jaw clenching, or arthritis are the causes. To help, start with ice packs, keep a soft diet, exercise your jaw, and take care of the stress you experience.