When can i begin to eat solids following my lower right back molar extraction with bone graft and stitches?

Uncertain: Check with your dentist or oral surgeon. It depends on the exact procedure done and anticipated healing.

Depends: Usually after 3-4 days patient eat soft foods but on the opposite side of the mouth where the surgery was not performed. After a solid 1-2 weeks of healing you can eat solids again. However, consult with your doctor because patients heal at different rates.

4 weeks: It may take 14 days for soft tissue to attach and 28 days for them to cross link (providing strength). Normally if you don't have agraft (usually you don't need them) you can eat right away since the wisdom teeth is located far back and not involve with occlusion (it may hurt upon swallowing due to swelling 2-3 days). Since you have a graft, chew on the other side so the graft can be protected.