Tooth implant/bridge or nothing?

[cleansun]

Hoping lollygaggle is about maybe!

I just had my lower first molar extracted today, and have also had the wisdom tooth out on that side so there’s one lonely tooth with a gap either side

issue is, I had the upper tooth above it extracted years ago and I’m wondering if there is a point doing an implant if there’s nothing above it? My dentist has quoted £2800 for bridge or £3500 implant

I’ve had a Google and found a dentist near me that does botox for grinding/clenching so I’m going to get that done when I have the money