Should i get my baby teeth pulled out if i still have them at 18?

That depends: This depends on why you still have baby teeth at 18. If there are no adult teeth under the baby teeth, then extraction of the baby teeth is contraindicated, as this would leave you with no teeth to replace the baby ones. Also, retained baby teeth may be due to impacted adult teeth. Impacted teeth are ones that don't erupt normally and are still in the bone. Usually orthodontics is indicated here.

Retained baby teeth: Not necessarily. The question of keeping or removing those baby teeth depends on why they are still there. If there are no permanent to replace them then keeping the baby teeth, if they are healthy, is a good idea, assuming they are toward the back. Get some x-rays and discuss your options with your dentist.

See a dentist: If the replacing adult tooth is present than yes. You need to see a dentist for proper diagnosis and treatment.

Treatment options-: The answer to your question is not a simple one & cannot be answered over the internet as each case is different & requires a clinical exam, x-rays and discussion of treatment options. Your occlusion & presence or absence of a permanent tooth as well as their position help determine the answer. It's best to consult with both a restorative dentist & orthodontist to discuss options & recommendations.

Need evalution: Over-retained baby teeth indicate either missing or impacted permanent teeth. As baby molars are larger than the premolars http replace them, over-retained baby teeth can cause improper posterior occlusion. Please see your dentist, and if indicated an orthodontist, for an evaluation before doing something precipitous such as extractions.