Best Solution for 8 Missing Teeth

Flippers certainly CAN fill the spaces, but generally are not fond choices.  Many people remove them during meals and use them mainly in social situations.  CAN they work?  Yes.  Are they desired as a first option?  Not usually.

If adequate bone allows, implants are usually the best option.  Bridges can be alternatives and require healthy teeth next to the spaces where teeth are missing.  These require unique brushing and flossing methods and normally do not last as long as implants.

If the goal is to simply fill spaces, then a flipper will work.  If the desire is to look and function like teeth, a flipper will disappoint.

Depending on which teeth are missing will ultimately decide what is the best treatment for your particular missing teeth.  A flipper is a adequate temporary esthetic fix, but they are meant to be temporary.  A bridge may be a viable treatment for you, but without knowing which teeth are missing it is hard to determine.  Bridges only have an average lifespan of about 5 years, whereas properly placed and restord implants will last you a lifetime.  Seek out the advice of a Board Certified Oral and Maxillofacial surgeon and properly trained restoring dentist to help in your proper treatment

A "flipper" is a fairly inexpensive way to get teeth quickly, mostly for appearance. Because they are made of acrylic, they wear out pretty quickly. I don't know which teeth are missing, but the best solution usually is implants. Long bridges stress the remaining teeth and if one part fails the entire bridge often needs to be redone. With implants, only what's missing needs to be replaced, or at the least, shorter bridges can be used.
Implants will be the most expensive option, but the best long term value.