So you must be experiencing some trouble because of your trapped tooth which is resisting to come out. You'll likely need your impacted wisdom tooth pulled if it results in problems such as:

Pain
Food and debris getting stuck behind the wisdom tooth
Infection or gum disease (periodontal disease)
Tooth decay in a partially erupted wisdom tooth
Damage to a nearby tooth or surrounding bone
Development of a fluid-filled sac (cyst) around the wisdom tooth
Complications with orthodontic treatments to straighten other teeth