Proposed treatment plan for Hahn dental implant?

That implant looks too wide for the ridge. You could place a 4mm diameter implant with added length in conjunction with a buccal bone graft or ridge split. You're the clinician so why are you handing over the planning to non-clinical people? You're the surgeon you should know this

3,75 x11.5 slightly towards lingual and vestibular graft with partially absorbable material for added volume and maintenance of it. 5mm is too wide and 8 is too short( for this case)

I think a 4.2 x 11.5 implant placed on a slight lingual tilt would fit into the area very snugly and safely.....the buccal and lingual walls of the proposed osteotomy are adequately thick and should give you a good result.

This is why I dislike courses that teach guided surgery without teaching how to do the implant freehand. This case requires a longer, narrower implant placed at the crest with grafting of the resultant dehiscence on the buccal. It should not be attempted by someone who is not trained in the graft procedure.

You might consider a ridge split with allograft prp mix to back fill. let, cover with prf and resorbable membrane. Let heal for 3-5 months re measure on ct and see if an implant that allows 1.5-2 mm bone encirclement and 10 mm length. That 5x8 or 4.3x10 might fit.

The planning is too deep, too wide. Use a 4x10, and graft in the vestibular face. Angle accord the shape of the bone. Good luck.

There is so much to say... Do not allow a lab to do this for you. Take a course. Download BlueSkyBio (a free implant planning software) and take advantage of learning it. 1. I disagree with other posts. This should be fine if you are comfortable enough to flap and perfom a lingual osteotomy. The outer green bracket represents the margin of error during placement, the implant itself is well within the bone.

If you lower the crest of the ridge by 1.5 mm, (vertcal osteoplasty) you can place your planned implant with plenty of native bone in all dimensions without grafting. I do this all the time and have great outcomes. Grafting at the time of implant placement opens up many opprtunites for post op problems - especailly in the hands of novice surgeon. After the vertical osteoplasty use your guide and place accordingly. Think like a carpenter, use the widest diamter implants whenever possible for molars, and respect the biology.