Skip to content

Ibuprofen Versus Ibuprofen/Acetaminophen Postoperatively in Patients Needing Root Canal Therapy

An Evaluation of Postoperative Pain Using Ibuprofen Versus Ibuprofen/Acetaminophen in Patients With Symptomatic Irreversible Pulpitis and Symptomatic Apical Periodontitis

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03631433
Enrollment
102
Registered
2018-08-15
Start date
2016-02-10
Completion date
2017-07-17
Last updated
2021-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain, Postoperative

Brief summary

Aim: The purpose of this study was to compare ibuprofen versus an ibuprofen/acetaminophen combination for postoperative pain control in patients requiring root canal treatment with a tooth that is painful to cold and biting. Methodology: Following regular root canal treatment, patients randomly received identical appearing tablets of 600 mg ibuprofen or 600 mg ibuprofen/650 mg acetaminophen to be taken every 6 hours as needed for pain. A 4-day diary was used to record pain and medication use.

Detailed description

This was a single-center, double-blind, interventional trial where (randomly) one group received ibuprofen and the other group received ibuprofen and acetaminophen. Before the experiment, the ibuprofen and ibuprofen/acetaminophen groups were assigned 6-digit random numbers. The number assignment determined which drug regimen would be administered postoperatively for each patient. Only the random numbers were recorded on the data collection sheet in order to maintain blinding of the experiment. The blinding of the ibuprofen and ibuprofen/acetaminophen medications was done as follows. A registered pharmacist compounded identical appearing tablets of 200 mg ibuprofen and tablets of 200 mg ibuprofen/216.7 mg acetaminophen. The tablets were placed in identical-appearing bottles (60 tabs of 200 mg ibuprofen or 60 tabs of a combination of 200 mg ibuprofen/216.7 mg acetaminophen). The pharmacist prepared the master code sheet and assigned the random numbers to the bottles. Therefore, the medication was blind to both the patient and the operator. A copy of the master list of random numbers was supplied by the compounding pharmacist solely to the lead researcher and was not made available to anyone else during the data collection period. At the end of the debridement appointment, the patient received either a bottle containing 60 tabs of 200 mg ibuprofen or 60 tabs of 200 mg ibuprofen/216.7 mg acetaminophen. The patients were instructed to take 3 tablets every 6 hours as needed for pain. The patients received a diary for 4 days post-treatment to record pain, percussion pain, and the amount and type of study medications taken. Patients were instructed to tap on the tooth that had emergency endodontic treatment and record this as their percussion pain. Patients recorded their pain levels on a VAS as described earlier for postoperative treatment pain. Starting on the morning after their appointment, patients also recorded the number of study medications taken within each 24-hour period.

Interventions

DRUGIbuprofen 600 mg

identical appearing tablets containing 600 mg of ibuprofen

DRUGibuprofen 600 mg and acetaminophen 650 mg

identical appearing tablets of the combination of ibuprofen and acetaminophen

Sponsors

Ohio State University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Masking description

identical appearing tablets and random allocation

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. mandibular (bottom) or maxillary (top) posterior (back) tooth requiring root canal treatment 2. mandibular (bottom) or maxillary (top) posterior (back) tooth with symptomatic irreversible pulpitis and symptomatic apical periodontitis (painful tooth to cold and biting) 2\. between the ages of 18 and 65 years of age 3. American Society of Anesthesiologist classification I

Exclusion criteria

1. patients younger than 18 or older than 65 years of age 2. American Society of Anesthesiologist classification II or higher 3. allergies or contraindications to ibuprofen 4. allergies or contraindications to acetaminophen 5. pregnancy 6. inability to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
Heft Parker Visual Analog Scale Pain Scale Pain Measurements4 day postoperative surveyHeft-Parker Visual Analog Scale measurements (0-170mm scale) Higher values are a worse outcome.
Number of Participants4 day postoperative surveyNumber of participants requiring escape pills

Participant flow

Participants by arm

ArmCount
Ibuprofen
A registered pharmacist compounded identical appearing tablets of 200 mg ibuprofen and tablets of 200 mg ibuprofen/216.7 mg acetaminophen. The tablets were placed in identical-appearing bottles (60 tabs of 200 mg ibuprofen or 60 tabs of a combination of 200 mg ibuprofen/216.7 mg acetaminophen). At the end of the debridement appointment, the patient received either a bottle containing 60 tabs of 200 mg ibuprofen or 60 tabs of 200 mg ibuprofen/216.7 mg acetaminophen. The patients were instructed to take 3 tablets every 6 hours as needed for pain. Ibuprofen 600 mg: identical appearing tablets containing 600 mg of ibuprofen
49
Ibuprofen/Acetaminophen
A registered pharmacist compounded identical appearing tablets of 200 mg ibuprofen and tablets of 200 mg ibuprofen/216.7 mg acetaminophen. The tablets were placed in identical-appearing bottles (60 tabs of 200 mg ibuprofen or 60 tabs of a combination of 200 mg ibuprofen/216.7 mg acetaminophen). At the end of the debridement appointment, the patient received either a bottle containing 60 tabs of 200 mg ibuprofen or 60 tabs of 200 mg ibuprofen/216.7 mg acetaminophen. The patients were instructed to take 3 tablets every 6 hours as needed for pain. ibuprofen 600 mg and acetaminophen 650 mg: identical appearing tablets of the combination of ibuprofen and acetaminophen
53
Total102

Baseline characteristics

CharacteristicIbuprofenIbuprofen/AcetaminophenTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
49 Participants53 Participants102 Participants
Age, Continuous34 years
STANDARD_DEVIATION 11
35 years
STANDARD_DEVIATION 12
34 years
STANDARD_DEVIATION 11
pain level on a Heft-Parker VAS129 units on a scale
STANDARD_DEVIATION 22
128 units on a scale
STANDARD_DEVIATION 23
128 units on a scale
STANDARD_DEVIATION 22
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
49 Participants53 Participants102 Participants
Sex: Female, Male
Female
29 Participants39 Participants68 Participants
Sex: Female, Male
Male
20 Participants14 Participants34 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 490 / 53
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Heft Parker Visual Analog Scale Pain Scale Pain Measurements

Heft-Parker Visual Analog Scale measurements (0-170mm scale) Higher values are a worse outcome.

Time frame: 4 day postoperative survey

ArmMeasureValue (MEAN)Dispersion
IbuprofenHeft Parker Visual Analog Scale Pain Scale Pain Measurements63 units on a scaleStandard Deviation 41
Ibuprofen/Acetaminophen CombinationHeft Parker Visual Analog Scale Pain Scale Pain Measurements60 units on a scaleStandard Deviation 42
Primary

Number of Participants

Number of participants requiring escape pills

Time frame: 4 day postoperative survey

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
IbuprofenNumber of Participants20 Participants
Ibuprofen/Acetaminophen CombinationNumber of Participants18 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026