I'm 30 years of age and still have four baby teeth left and one of them is about to fall off. so do i need a implant or will it grow back?

Retained baby teeth: In all likelihood, there are no permanent teeth to replace your baby teeth, although it is possible one or more of them are impacted and may never erupt anyway. Radiographs can determine all of this. It is usually best to replace missing teeth with implant retained crowns. You should consult with a qualified dentist in your area to evaluate and discuss your treatment options.

See your dentist: Missing teeth are one of the most common congenitally developmental problems in humans. The causes of this phenomenon vary and there are multiple treatments available (.e.g. dental implants, fix bridges, etc.). I can appreciate your concerned about your dental health, but finding a proper diagnosis and treatment may be the answer to your worries. See your dentist for evaluation and treatment.

Have you ever...: ...been told that there were permanent teeth present under the over-retained baby teeth? If not, you will probably need replacement. Don't let it go, or adjacent and opposing teeth will collapse into the space where the baby tooth is lost. See your dentist before the baby tooth falls out.

Depends: If the permanent teeth never formed than an implant would be considered the best way to go. you don't have to destroy teeth to make a bridge. If the permanent tooth is impacted it might be able to be retrieved and brought into place with orthodontics

It wont grow back: The most likely reason why you still have a baby tooth, is that the permanent tooth below it is either impacted, or not there. You need to see your dentist to determine what can be done to close the space.

It depends: Although baby teeth may remain, chances are all of your permanent teeth have grown in. This means that the lost tooth will not grow back. As to whether or not you will require a dental implant, that depends on your needs and the amount of space left after the tooth falls out. If the gap between two teeth is small enough, your dentist may be able to close it with porcelain veneers.

Depends: depends, on where it is and what is going on with the teeth around it. You have 4 options after the baby tooth is gone...1)nothing, 2)flipper/partial, 3) bridge and 4)implant. I advise a consult with your local dentist for best option