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Does Anterior Disc Displacement with Reduction Affect Postoperative Pain Perception After Root Canal Therapy? A
Burcu Revi1, Edanur Maraş1, Muhammed Enes Naralan2
1Department of Endodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, 53100 Rize, Turkey.
Diagnostics (Basel, Switzerland)
|July 15, 2026
Summary
Patients with anterior disc displacement with reduction (ADDwR) experienced greater early postoperative pain after root canal treatment (RCT). This highlights how temporomandibular disorders can impact pain perception following dental procedures.
Area of Science:
- Dentistry
- Pain Management
- Oral Surgery
Background:
- Temporomandibular disorders (TMD) may alter odontogenic pain perception via trigeminal pathways.
- Investigating the impact of anterior disc displacement with reduction (ADDwR) on postoperative pain after root canal treatment (RCT) is crucial.
Purpose of the Study:
- To compare postoperative pain following RCT in patients with and without ADDwR.
- To analyze the association between TMD, joint pain, mouth opening, and postoperative pain.
Main Methods:
- A clinical trial (NCT07329413) included patients with irreversible pulpitis and symptomatic apical periodontitis.
- 70 patients (35 with ADDwR, 35 controls) underwent standardized RCT.
- Postoperative pain was assessed using the Numeric Rating Scale; joint pain and mouth opening were also recorded.
Main Results:
- Patients with ADDwR reported significantly higher early postoperative pain (6 and 12 hours) post-RCT.
- ADDwR, female gender, and age were independently associated with increased postoperative pain.
- RCT procedure duration was longer in the ADDwR group.
Conclusions:
- ADDwR is linked to heightened early postoperative pain after RCT.
- Temporomandibular conditions may significantly influence postoperative pain perception.
- Consideration of TMD is recommended when assessing postoperative pain complaints.
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