I am thinking about getting braces again to fix my overjet. could invisalign or incognito braces fix it?

YES YES YES: At your age the growth pattern has stopped so invisalign is the best treatment.

Maybe: Invisalign , however doesn't work in all cases. An orthodontist will advise if its right for you!

Yes: In many cases invisalign can be as effective as braces.

Maybe Either: Clear aligners, clear braces, or lingual "invisible" braces may be options. The only way to determine what method is applicable is by getting an opinion from an orthodontic specialist to evaluate your specific situation and the pros and cons of the different options.

Yes: The easiest and most predictable invisalign cases are with patients that have had successful braces in the past, relapse patients. You teeth almost remember where they need to stay their healthiest. Invisalign will be faster and more comfortable than braces and you don't have to change your diet. No more shredded lips and tongue.

Yes, of course: Any kind of braces or aligners can fix your teeth. To correct the overjet, if it is not too severe, invisalign is easier since they can be prescribed not to have to wear elastics with them.

Likely: only a consultation with an orthodontist will be able to confirm for sure, but for mild/moderate treatment, invisalign is a very effective treatment method. I would not recommend incognito however. We hear lots of unhappy patients with this (not ours, we don't do incognito) noting impacted speech & discomfort

Again?: Before undertaking treatment it is mandatory to determine what caused "again." Was relapse due failure to completely resolve original malocclusion, a skeletal imbalance, failure to retain the original correction, or many other reasons. Choice of gadget, the Orthodontic Appliance, should made based on the diagnostic findings, not on a magazine advertisement. Please see an Orthodontic Specialist.