Front tooth extracted and canine removed from palate. no damage to nerves but had bone graft. the 2 teeth next to extracted tooth are loose. normal?

Not unusual: The trama from the extraction may loosen those teeth. The local swelling at the site may give them a little more room to move around. Small as it is, they do move. They will normally tighten back up within the week. If you are concerned, see your surgeon.

Normal: The inflammation in the area of bone graft may cause the adjacent tooth to be mobile. It is normal if it only occurs for the 1-2 weeks, during the time of chemotaxis of all the inflammatory infiltrates. After 2 weeks, the mobility should improve. Occlusal adjustment could be done on these two teeth to relieve the heavy centric if there is an interference and especially if there is fremitus.

Yes: Teeth within or close to the surgical field can become loose after tooth extraction due to swelling and inflammation of hard and soft tissue.

Possibly, possibly not. The General Dentist, specialist Periodontist, or specialist Oral Surgeon that did the proceeduresis responsible for your post-surgical care, especially ion younger more than 2 weeks post-surgery. So rather than worrying, call your practitioner,