If your dental infection is long standing, and you don't take care of it, it may show generalized symptoms like fever
, head-ache etc. But before this happen, you suffer from local complications like extreme jaw pain
, difficulty in opening mouth, swelling of cheeks/neck, and sometimes there can be difficulty in breathing and swallowing also. If you suffer from any of the above symptoms than your pain in hand and legs can be due to your dental infection.
Extraction is not the only treatment of infected wisdom teeth. If your wisdom teeth are impacted + infected than extraction is the only treatment option. But if they are not impacted, and can be saved, go for root canal treatment
. Ask your dentist
to interpret OPG to you, and than you decide.