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Current Therapeutic Research, Clinical and Experimental logoLink to Current Therapeutic Research, Clinical and Experimental
. 2006 Jul;67(4):229–240. doi: 10.1016/j.curtheres.2006.07.001

Prospective, randomized, open-label, pilot clinical trial comparing the effects of dexamethasone coadministered with diclofenac potassium or acetaminophen and diclofenac potassium monotherapy after third-molar extraction in adults

Babatunde Olamide Bamgbose 1,*, Jelili Adisa Akinwande 2, Wasiu Lanre Adeyemo 2, Akinola Ladipo Ladeinde 2, Godwin Toyin Arotiba 2, Mobolanle Olugbemiga Ogunlewe 2
PMCID: PMC3965982  PMID: 24678099

Abstract

Background:

Patients who experience pain, swelling, and trismus after third-molar extraction are reported to experience a 3-fold higher rate of adverse effects (AEs) on quality of life compared with those who are asymptomatic after this surgery. Therefore, investigators emphasize the necessity for better control of this triad of sequelae. Steroids can reduce the risk for physiologic processes of inflammation, thereby suppressing the development of inflammation.

Objective:

The aim of this study was to compare the effects of dexamethasone 8 mg IM and diclofenac potassium (K) 50 mg PO, dexamethasone 8 mg IM and acetaminophen 1000 mg PO, and monotherapy with diclofenac K 50 mg PO on postoperative pain, swelling, and trismus after surgical removal of third molars.

Methods:

This prospective, randomized, open-label pilot study was conducted at the Department of Oral and Maxillofacial Surgery, Lagos University Teaching Hospital, Lagos, Nigeria. Patients were randomly allocated to 1 of 3 treatment groups: concomitant treatment with dexamethasone 8 mg IM and diclofenac K 50 mg PO or acetaminophen 1000 mg PO, or monotherapy with diclofenac K 50 mg PO. Overall analgesic efficacy of the drug combinations was assessed for 7 days postoperatively using a 4-point categorical pain-intensity rating scale (0 = no pain; 1 = mild pain; 2 = moderate pain; and 3 = severe pain). Facial swelling was measured in 1 dimension on days 1, 2, and 7 after surgery using a tape measure placed from the tip of the tragus, to gonion, to the tip of the contralateral tragus, and trismus was assessed using interincisal mouth-opening ability, measured using a vernier-calibrated caliper on postoperative days 1, 2, and 7. Tolerability was assessed using direct questioning of the patients at follow-up visits.

Results:

A total of 150 patients (50 per treatment group) were included in the analysis (76 women, 74 men; mean [SD] age, 26.8 [5.04] years [range, 18–45 years]; 100% Nigerian). The proportion of patients reporting no pain on the pain-intensity rating scale was significantly higher in the group receiving dexamethasone and diclofenac K compared with that in the groups receiving dexamethasone and acetaminophen or diclofenac K monotherapy (44% vs 22% and 24%, respectively; both, P < 0.05). Facial swelling was significantly less with dexamethasone and diclofenac K or dexamethasone and acetaminophen compared with diclofenac K alone (day 1: P = 0.013 and P = 0.011, respectively; day 2: P = 0.002 and P = 0.004, respectively). However, trismus relief was statistically similar between the 3 treatment groups on postoperative days 1 and 2. No AEs or complications were recorded.

Conclusion:

In this open-label pilot study, concomitant treatment with dexamethasone and diclofenac K provided significant relief of postsurgical pain and swelling compared with dexamethasone and acetaminophen or monotherapy with diclofenac K after third-molar extraction in these patients.

Key words: dexamethasone, diclofenac potassium, acetaminophen, third-molar extraction

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