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Harbaugh CM, Nalliah RP, Hu HM, Englesbe MJ, Waljee JF, Brummett CM. Persistent Opioid Use After Wisdom Tooth Extraction. JAMA. 2018;320(5):504–506. doi:10.1001/jama.2018.9023
In 2004, wisdom tooth extraction was performed in an estimated 3.5 million patients.1 Patients undergoing wisdom tooth extraction are predominantly young and healthy and routinely receive a postoperative opioid prescription.2
Opioid-naive patients are at risk for persistent opioid use after elective surgery3,4; to our knowledge, the risk following dental procedures has not been assessed. We investigated the association of filled perioperative opioid prescriptions with persistent use of prescription opioid medications following wisdom tooth extraction.
The University of Michigan institutional review board deemed this study of deidentified data exempt from review and informed consent. Patients aged 13 to 30 years who underwent wisdom tooth extraction defined by tooth number were examined in the Truven Health MarketScan Commercial and Dental database (July 1, 2009-December 31, 2015).
The MarketScan database contains deidentified insurance claims for enrollees of self-insured employers and health plans and includes 43 million to 55 million beneficiaries annually from 50 states. Patients were excluded for lapse in enrollment, having an opioid prescription filled within 6 months preoperatively, or having an additional anesthetic or dental procedure within the year after surgery.3,4 Filled prescriptions were identified from pharmacy claims by matching generic drug names with National Drug Codes.
The exposure was a filled perioperative opioid prescription (≥1 opioid prescription filled from 7 days before the procedure to 3 days following tooth extraction) and the primary outcome was persistent opioid use (≥1 opioid prescription filled during postprocedure days 4-90 and 91-365).3 Any opioid prescriptions filled after 3 days are unlikely to represent the perioperative prescription. All estimated models controlled for patient demographics, tooth impaction, medical comorbidities, mental health and chronic pain diagnoses,4 and prescriptions filled within the past year. Dry socket was excluded due to low event rate.
Statistical analyses were performed using χ2 analyses and multivariable logistic regression to estimate the association between a perioperative opioid prescription filled and persistent opioid use using 2-sided tests with P value less than .05 for significance (SAS software [SAS Institute], version 9.4). For clinical interpretability, the predicted rate of persistent opioid use was estimated for patients who filled or did not fill opioid prescriptions using the regression model that was adjusted for all known patient characteristics.
Among 70 942 patients who underwent wisdom tooth extraction, 56 686 patients filled and 14 256 patients did not fill a perioperative opioid prescription. Hydrocodone was the most common (70.3%), followed by oxycodone (24.3%). Compared with patients who did not fill an opioid prescription, patients who filled an opioid prescription were more often younger and female with higher rates of chronic pain, depression, anxiety, preoperative prescription use, and tooth impaction (Table).
Persistent opioid use occurred at an adjusted rate of 13 (95% CI, 9-19) per 1000 patients with a filled opioid prescription compared with 5 (95% CI, 3-7) per 1000 patients without a filled perioperative prescription. Controlling for patient characteristics, a filled perioperative opioid prescription was independently associated with persistent opioid use (adjusted odds ratio [OR], 2.69; 95% CI, 2.10-3.44).
Compared with patients aged 13 to 15 years, older age was associated with persistent opioid use (ages 16-18 years: adjusted OR, 1.39 [95% CI, 1.01-1.91]; ages 19-24 years: adjusted OR, 2.13 [95% CI, 1.55-2.92]; ages 25-30 years: adjusted OR, 2.85 [95% CI, 1.87-4.34]). Soft tissue impaction (adjusted OR, 0.64; 95% CI, 0.42-0.96) and partial bony impaction (adjusted OR, 0.73; 95% CI, 0.53-0.99) were negatively associated, whereas complete bony impaction was not associated with persistent opioid use (Table).
A filled perioperative opioid prescription after wisdom tooth extraction was associated with higher odds of persistent opioid use among opioid-naive patients. Consistent with prior work showing no association with major or minor surgery, persistent use was not explained by patient characteristics or tooth impaction alone.3
Limitations include that the amount of opioid prescriptions filled may not reflect actual consumption. The reasons for opioid prescription refills (eg, whether for pain or a nonprescribed reason, storage for later use, or diversion to another person) were unknown. Persistent opioid use based on prescription claims may underestimate overall and nonmedical use.
Dentists were the second-leading opioid prescribers for children and adolescents in 2012.5 The American Dental Association recently mandated an opioid prescribing limit of 7 days or less.6 However, nonopioid analgesics may have equivalent or superior efficacy for postextraction pain.2 The practice of any routine opioid prescribing must be questioned in the face of the potential morbidity and long-term consequences of opioid use.
Accepted for Publication: June 5, 2018.
Corresponding Author: Chad M. Brummett, MD, Division of Pain Medicine, Department of Anesthesiology, University of Michigan Medical School, 1500 E Medical Center Dr, Ste 1H247 UH, PO Box 5048, Ann Arbor, MI 48109 (firstname.lastname@example.org).
Author Contributions: Drs Harbaugh and Brummett had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Dr Hu conducted and is responsible for the data analysis.
Concept and design: Harbaugh, Englesbe, Waljee, Brummett.
Acquisition, analysis, or interpretation of data: Harbaugh, Nalliah, Hu, Waljee.
Drafting of the manuscript: Harbaugh, Nalliah, Waljee, Brummett.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Hu.
Obtained funding: Englesbe, Brummett.
Administrative, technical, or material support: Hu, Englesbe.
Supervision: Englesbe, Waljee, Brummett.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Waljee reported receiving research funding from the Agency for Healthcare Research and Quality (grant K08 1K08HS023313-01), the American College of Surgeons, and the American Foundation for Surgery of the Hand; and serving as an unpaid consultant for 3M Health Information Systems. Dr Brummett reported holding a patent for peripheral perineural dexmedetomidine licensed to University of Michigan; being a consultant for Recro Pharma and Heron Therapeutics; and receiving research funding from Neuros Medical. No other disclosures were reported.
Funding/Support: Funding was provided by the Substance Abuse and Mental Health Services Administration, the Michigan Department of Health and Human Services, and the University of Michigan Precision Health Initiative.
Role of the Funder/Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Disclaimer: The content is solely the responsibility of the authors and does not necessarily represent the official views of the Substance Abuse and Mental Health Services Administration or the Michigan Department of Health and Human Services.
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