This is an option for filling the space created by a missing tooth. A bridge replaces the missing tooth, both functionally and cosmetically. Bridge work is as much an art as it is an exact science. By the time the pulp is infected it must be treated, and cannot heal on its own. It can even weaken the entire immune system. This is dangerous, not to mention very painful. Symptoms that the pulp has become. Nightguards are also recommended for patients who clench or grind their teeth at night as a way to protect their teeth and bite. If you have decided a guard is right for you, the dentist will take an impression. Read More Signs of unhealthy periodontium include: gums that are red and bleed easily, persistent bad breath, gums that are pulled away from the tooth, loose teeth, and changes in the position or bite of the teeth. Mouthguards are recommended to protect the jaw and teeth during physical activity and sports such as boxing, football, basketball, or other activities where your mouth may get hit. Read More. In addition, these guards protect the soft tissues of. Read More, a filling also helps prevent further decay by closing off any cracks or spaces where bacteria can enter. There are a variety of filling materials available including gold, silver, plastic and porcelain. The dentist will work with.