I have four front top teeth missing.I bought a 4-tooth denture but didn't work for me. Are there "clip-on" false teeth w/o pink?

I saw about implants for the 4 missing front teeth but was told I had too many faults in my remaining teeth, my expectations had been unrealistic, & that my regular dentist had 'given up on my mouth' as so much other work needed doing. I have 5 upper teeth. Tried dentures but panic, can't breathe, and vomit until it is back out. Aren't there 'clip-on' false teeth that I could fix to them without the pink bits that dentures have? I have no confidence and my upper lip is caving in and terribly wrinkled with so few teeth behind it.

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