I underwent surgical alveolar bone augmentation prior to implants, bone was lost because trauma.
Procedure done in the largest university hospital in my country under direct supervision of an international renown professor specialized in bone regeneration.
I think I am in the position to tell what works and it is worth trying and what is better left alone, not only because my direct experience with it and my inquisitive relationship with the above mentioned professor and its team but because my extensive research on the subject too.
The procedure that guarantees the best results and the highest rate of success consists in a surgical intervention which exposes the alveolar bone, a paste made of autogenous/equine (or bovine or corpse) powdered bone is applied on the area, a goretex/titanium membrane is nailed by micro-implants (4 of them) to the bone in order to keep the paste in place and shape, the gums are stitched back in place to completely cover the whole thing (which is easier said than done), after 6 months the scaffold provided by the "artificial" bone is replaced by your real bone, the whole thing opened again, the goretex/titanium membrane and the micro-implants removed, the gums stitched again back in place.
Not an easy and pleasurable experience but results are amazingly good and reliable, everything else at the time being is not worth.
Nice...but this requires NO TEETH in the area of the bone augmentation and the gain doesn't go past the ridge of the alveolar crests!
Augmenting alveolar bone around existing teeth at the time being is just not officially possible, whom proposes this kind of intervention is just after your money and some kind of result is just pure luck, possibly a worsening of the situation is more likely.
At clinical research level some results have been achieved by stem cells therapy, I personally know the professor who did that and I have been his patient, the stem cells therapy anyway wasn't and isn't available and the professor is now inquired for fraud and fired from his position (for other reasons than the clinical research on stem cells but still not an index of great professionalism), my experience with him has been very bad (and expensive).
Possibly the stem cells therapy is promising anyway but as far as I know not available yet.
The only other option worth a try could be the LIPUS but it would be a try without any guarantee, at least relatively inexpensive, no side effects and not unpleasant.
https://benthamopen....T/TODENTJ-6-220
Keep in mind that alveolar bone augmentation around existing teeth would be the greatest odontoiatric revolution ever since it would mean basically never a lost teeth anymore (which doesn't make most dentists very happy about the idea).
If something like that was really available you can be sure everybody will know.