Whether or not the third molar is infected is not clear. It will need another x-ray and even a clinical examination. However, even if it is not infected, sometimes it is essential to remove it in order to save the tooth in front. Generally, because of the position of the wisdom teeth, there is food lodged in the area which damages the tooth in front. You have to discuss about this with your dentist and take a call.

2 molar is affected not ur last