The goal of this interventional randomized clinical trial is to evaluate the use of platelet rich fibrin in full pulpotomy in mature adult teeth.

The main questions it aims to answer are:

1. Does the use of platelet rich fibrin in complete pulpotomy in mature permanent teeth will raise the success rate of full pulpotomy of adult teeth?
2. Does the use of cone beam computed tomography scans will be more effective in early detection of apical periodontitis than periapical radiographs?

Participants will be asked to do the following:

• Receive the pulpotomy treatment of their target tooth.
• Record the pain score in the pain assessment chart.
• Attend the follow-up visits. They'll receive a full pulpotomy treatment of their target tooth. Researchers will evaluate the usage of platelet rich fibrin in performing the pulpotomy procedure of adult teeth and if cone beam computed tomography scans will be more effective in early detection of apical periodontitis than periapical radiographs.

Inclusion Criteria:

1. Patient age: 25-35 years
2. Mature permanent premolar teeth with two separate roots.
3. Clinical diagnosis of irreversible pulpitis.
4. Patients without existing medical condition.

Exclusion criteria:

1. Immature teeth.
2. Non-restorable teeth.
3. Non-vital Teeth.
4. Uncontrolled pulpal bleeding.
5. Periodontally affected teeth.