Aetna Dental Hmo Aetna PPO Or HMO? Why?

Aetna PPO or HMO? why? - aetna dental hmo

Can anyone tell me the difference between the HMO or PPO, which would be better for me, Aetna) (dentistry, I'm 29 young and healthy, but not the differences and advantages, I have to sign tomorrow, my employer has me now co-payment information , etc., but the lack of information. I need answers