Based on the history provided, the second molar appears to have distal caries associated with the previously impacted wisdom tooth. The fact that cold sensitivity is brief (1–2 seconds), with no spontaneous or night pain, is relatively reassuring and may be compatible with a vital/reversibly inflamed pulp. However, the depth of the caries and pulpal status need to be assessed clinically before deciding between a definitive restoration and root canal treatment. Mild biting discomfort 4 days after wisdom-tooth extraction can also have several causes and does not by itself indicate the need for RCT.
Next Steps
Continue with the dentist’s planned temporary restoration and observation period. During the review, the dentist should reassess the tooth clinically, including cold/EPT testing, percussion, palpation and bite testing, along with evaluation of the caries after excavation. If symptoms remain mild and the cold response remains brief without spontaneous/night pain, definitive restoration may be considered if the pulp is judged healthy enough. If pain becomes spontaneous, lingers significantly after cold, occurs at night, or biting/percussion pain progressively increases, the tooth should be reassessed sooner for possible endodontic treatment.
Health Tips
Avoid chewing very hard foods on that side while the temporary filling is present and maintain good oral hygiene around the second molar. Some mild postoperative discomfort after wisdom-tooth extraction can persist for several days. However, increasing pain, facial swelling, fever, pus/bad taste, difficulty opening the mouth or swallowing, or progressively worsening tooth pain warrants an earlier dental review rather than waiting for the scheduled follow-up.