Preemptive Effect of Dexamethasone in Third-Molar Surgery: A Meta-Analysis

Area of Science:

• Oral Surgery
• Pharmacology
• Evidence-Based Dentistry

Background:

• Third molar extraction is a common surgical procedure.
• Postoperative pain, swelling, and trismus are frequent complications.
• Preemptive analgesia aims to reduce these adverse effects.

Purpose of the Study:

• To evaluate the efficacy of preemptive dexamethasone in managing lower third molar surgery outcomes.
• To compare dexamethasone with other oral anti-inflammatory drugs.

Main Methods:

• Systematic electronic search of three databases for relevant clinical trials.
• Inclusion of split-mouth studies assessing pain, swelling, and trismus.
• Meta-analysis of pooled effect measures (mean and standard deviation with 95% confidence intervals).

Main Results:

• Dexamethasone demonstrated superior preemptive effectiveness compared to nonsteroidal anti-inflammatories.
• Meta-analysis indicated dexamethasone significantly reduced swelling versus methylprednisolone at multiple time points.
• Dexamethasone improved mouth opening (trismus) compared to methylprednisolone post-surgery.

Conclusions:

• Dexamethasone appears more effective than methylprednisolone in reducing postoperative swelling and trismus after lower third molar surgery.
• Insufficient evidence currently supports dexamethasone's superiority over other nonsteroidal anti-inflammatories or methylprednisolone as a preemptive analgesic.
• Further high-quality meta-analyses are warranted to solidify these findings.