Cited by 1Opioid Use Disorder TreatmentPain Management and Opioid UseSubstance Abuse Treatment and Outcomes

Oral Health Risks of Transmucosal Buprenorphine: Commentary on Tuan et al. and Zheng et al.

Open access
Black, Anne C., Becker, William C.·2025·Journal of Addiction Medicine

Abstract

Opioid use disorder affects millions of people nationally and in 2022 opioid overdose deaths exceeded 80,000. Buprenorphine, a partial mu-opioid receptor agonist, is a gold standard treatment for opioid use disorder, improving withdrawal symptoms and decreasing opioid-related mortality. However, a 2022 Food and Drug Administration warning about oral health problems related to transmucosal formulations has precipitated new research into this medication's potential risks. Two timely studies included in this issue of Journal of Addiction Medicine provide important new insight into potential causal effects and mechanisms of transmucosal buprenorphine's impact on oral disease. Using propensity score-weighted survival analysis, Tuan and colleagues demonstrated significantly greater risk for oral health problems in patients with opioid use disorder exposed to transmucosal buprenorphine compared to those not exposed. Taking a vastly different approach, Zheng and colleagues explored mechanisms of oral health risk by exposing rats to transmucosal or intravenous buprenorphine. Results described prolonged oral fluid buprenorphine exposure, a condition proposed to increase risk for tooth decay, was associated with greater accumulated buprenorphine in the salivary gland associated with sublingual buprenorphine administration. These novel studies advance our understanding of the plausibility of a causal relationship between transmucosal buprenorphine and oral health problems and suggest the importance of prescriber-patient discussions about risk mitigating oral hygiene practices and close monitoring of oral disease development. Additional research is needed into the relative oral health risks of full-opioid agonist versus transmucosal buprenorphine exposure and current barriers to long-acting injectable buprenorphine.

Integrity signals

Registry

Crossref · 10.1097/adm.0000000000001452

Cites

11 of 11 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 30 cited sources checked · 0 supported · 0 flagged

  • Premisecitation

    Hydrocodone and oxycodone can cause xerostomia.

    “Commonly prescribed full opioid agonists such as hydrocodone and oxycodone are known to cause xerostomia13 and can impair immune function,14 both of which may promote dental caries, tooth decay and tooth loss, and these effects may be dose dependent.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [13] Götrick B, Åkerman S, Ericson D, Oral pilocarpine for treatment of opioid-induced oral dryness in healthy adults. J Dent Res. 2004; 83: 393– 397. 15111631

      Not checked in the free run.

  • Premisecitation

    Among fentanyl-exposed patients, LAIB was superior to TMB for urine samples negative for fentanyl.

    “Both buprenorphine treatments were effective in reducing opioid withdrawal and cravings, but LAIB was superior to TMB for urine samples negative for fentanyl among patients who were fentanyl-exposed.12”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [12] Nunes EV, Comer SD, Lofwall MR, Extended-release injection vs sublingual buprenorphine for opioid use disorder with fentanyl use: A post hoc analysis of a randomized clinical trial. JAMA Netw Open. 2024; 7: e2417377– e2417377. 38916892 PMC11200143 source

      Not checked in the free run.

  • Study design and conductcitation

    Tuan and colleagues addressed two weaknesses of Etminan and colleagues by including covariates in propensity score weights that accounted for differences in oral health and TMB exposure, including preexisting oral health diagnoses and healthcare utilization.

    “Tuan and colleagues address 2 primary weaknesses identified by Etminan and colleagues by including in the calculation of propensity score weights an array of covariates accounting for differences in oral health and TMB exposure, including preexisting oral health diagnoses and healthcare utilization.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Tuan et al.

      Not checked in the free run.

  • Premisecitation

    Tuan and colleagues observed greater risk for oral health problems as early as one month after TMB initiation.

    “Greater risk for oral health problems was observed as early as 1 month following TMB initiation.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Tuan et al.

      Not checked in the free run.

  • Premisecitation

    Buprenorphine use is linked to lower opioid-related death rates.

    “A partial mu-opioid receptor agonist, buprenorphine effectively treats opioid withdrawal symptoms and is associated with reduced opioid-related mortality.4,5”
    • Also stated in: § CONCLUSIONS · boosted
      “In light of buprenorphine’s unequivocal benefits for OUD management including reduced mortality in an era where 10,000 of patients are lost to opioid overdose death each year”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [4] Gowing L, Ali R, White JM. Buprenorphine for the management of opioid withdrawal. Cochrane Database Syst Rev. 2009; 3: CD002025. 19588330 source

      Not checked in the free run.

    • cites [5] Larochelle MR, Bernson D, Land T, Medication for opioid use disorder after nonfatal opioid overdose and association with mortality: A cohort study. Annals Intl Med. 2018; 169: 137– 145. PMC6387681 29913516 source

      Not checked in the free run.

  • May combine two claims. 8
  • Classified as probably not a substantial claim. 7
  • May combine two claims.

    Premisecitation

    Both LAIB and TMB were effective in reducing opioid withdrawal and cravings.

    “Both buprenorphine treatments were effective in reducing opioid withdrawal and cravings, but LAIB was superior to TMB for urine samples negative for fentanyl among patients who were fentanyl-exposed.12”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [12] Nunes EV, Comer SD, Lofwall MR, Extended-release injection vs sublingual buprenorphine for opioid use disorder with fentanyl use: A post hoc analysis of a randomized clinical trial. JAMA Netw Open. 2024; 7: e2417377– e2417377. 38916892 PMC11200143 source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    Critical evidence is accumulating in support of the 2022 FDA warning about TMB oral health risks, suggesting greater risk of adverse outcomes for patients exposed to TMB compared with no exposure or with other buprenorphine formulations for opioid use disorder.

    “Critical evidence is accumulating in support of a 2022 FDA warning about the oral health risks of TMB, suggesting greater risk for adverse outcomes for patients exposed to TMB compared to no exposure, or exposure to other buprenorphine formulations for OUD.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Etminan and colleagues' sampling strategy and conclusions drew criticism and concern that misinterpreted results could affect practice.

    “The study’s sampling strategy and conclusions drew criticism and concern about the potential impact of misinterpreted results on practice.9”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [9] Etminan M, Rezaeianzadeh R. Sublingual buprenorphine-naloxone exposure and dental disease—Reply. JAMA. 2023; 329: 1224– 1225. 37039794 source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Premisenone given

    The relative oral health risks of TMB compared with long-term full opioid agonist therapy are not well known.

    “The relative oral health risks of TMB versus LTOT are not well known, highlighting another critical gap warranting examination.”
    • Also stated in: § CONCLUSIONS · plain
      “The relative risks of full agonist versus partial agonist opioids remain unexplored, and evidence regarding this comparison could address a high-risk barrier to patients’ switching from LTOT when indicated.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S4 (based). May combine two claims.

    Interpretationreasoning

    Warnings about TMB oral health risks could discourage patients from switching away from long-term full opioid agonist therapy, leaving them at unknown risk for the same negative oral health outcomes.

    “Warnings about the oral health risks of TMB could deter patients from switching away from LTOT, leaving them at unknown risk for the same negative oral health outcomes.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Interpretationcitation

    Direct comparisons showing comparable outcomes for long-acting injectable buprenorphine relative to TMB suggest that LAIB may be a viable alternative for patients at high risk of oral health problems, including fentanyl-exposed patients who may need higher sublingual doses.

    “Direct comparisons showing comparable outcomes for long-acting injectable buprenorphine (LAIB) relative to TMB suggest LAIB may be a viable treatment alternative for patients at high risk for oral health problems, including patients exposed to fentanyl who may require higher sublingual doses.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [12] Nunes EV, Comer SD, Lofwall MR, Extended-release injection vs sublingual buprenorphine for opioid use disorder with fentanyl use: A post hoc analysis of a randomized clinical trial. JAMA Netw Open. 2024; 7: e2417377– e2417377. 38916892 PMC11200143 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Interpretationcitation

    Xerostomia and impaired immune function may promote dental caries, tooth decay, and tooth loss, and these effects may be dose dependent.

    “Commonly prescribed full opioid agonists such as hydrocodone and oxycodone are known to cause xerostomia13 and can impair immune function,14 both of which may promote dental caries, tooth decay and tooth loss, and these effects may be dose dependent.”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [13] Götrick B, Åkerman S, Ericson D, Oral pilocarpine for treatment of opioid-induced oral dryness in healthy adults. J Dent Res. 2004; 83: 393– 397. 15111631

      Not checked in the free run.

    • cites [14] Ninković J, Roy S. Role of the mu-opioid receptor in opioid modulation of immune function. Amino Acids. 2013; 45: 9– 24. 22170499 PMC3912755

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Poor nutritional habits, malnutrition, and social consequences of opioid use disorder such as homelessness and food insecurity are significant barriers to oral health and other positive behavioral routines.

    “Poor nutritional habits, malnutrition, and OUD-associated social consequences such as homelessness and food insecurity pose significant barriers to oral health and other positive behavioral routines11 that may be mitigated by buprenorphine treatment.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [11] Chavez MN, Rigg KK. Nutritional implications of opioid use disorder: A guide for drug treatment providers. Psychol Addict Behav. 2020; 34: 699– 707. 32202820 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Etminan and colleagues' study had two main limitations: missing patient oral hygiene information and inability to determine prescription indication, which left open the possibility that some patients were treated for chronic pain without opioid use disorder.

    “Omission of patient oral hygiene information and inability to determine indication for prescriptions—exposing the possibility that some patients might have been treated for chronic pain without OUD—were noted as primary limitations.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [8] Etminan M, Rezaeianzadeh R, Kezouh A, Association between sublingual buprenorphine-naloxone exposure and dental disease. JAMA. 2022; 328: 2269– 2271. 36511932 PMC9856241 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Full opioid agonists are associated with hypogonadism and osteoporosis, which can cause dental problems.

    “Furthermore, full opioid agonists are associated with hypogonadism and osteoporosis,15 which can cause dental problems.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [15] Daniell HW. Opioid osteoporosis. Arch Intern Med. 2004; 164: 338– 338. 14769633

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    The FDA warning stated that buprenorphine's benefits clearly outweigh its oral health risks.

    “Critically, the FDA warning declared that benefits of buprenorphine use clearly outweigh the oral health risks.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [6] Knopf A. FDA warns about dental problems with buprenorphine medicines dissolved in the mouth. Brown Univ Child Adolescent Psychopharmacol Update. 2022; 24: 8.

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Several treatment societies asked for the FDA warning to be retracted because they worried it could reduce use of a life-saving treatment.

    “Several treatment societies have asked for retraction of the FDA warning, noting concerns about its potential impact on use of a life-saving treatment.7”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [7] American Academy of Addiction Psychiatry, American College of Academic Addiction Medicine, American College of Medical Toxicology, Re: A call for the FDA to retract its safety communication regarding buprenorphine. Published January 24, 2022. Accessed November 6, 2024. https://amersa.org/wp-content/uploads/22.01.24%20A%20Call%20for%20the%20FDA%20to%20Retract%20its%201.12.2022%20Safety%20Communication%20Regarding%20Buprenorphine.pdf

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Premisecitation

    The FDA warning rested on about 300 case reports that were anecdotal, which raised questions about how much disease occurrence could be attributed to TMB exposure.

    “However, the anecdotal nature of the approximately 300 case reports supporting the warning raised questions about attributable risk—defined as the proportion of the disease occurrence that can be attributed to a certain exposure of TMB—that subsequent studies have sought to elucidate.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [6] Knopf A. FDA warns about dental problems with buprenorphine medicines dissolved in the mouth. Brown Univ Child Adolescent Psychopharmacol Update. 2022; 24: 8.

      Not checked in the free run.

13 of 13
  • The paper relies on this without support.

    Findings from rats given buprenorphine can be generalized to humans for assessing oral health risk.

    “Taking a vastly different approach, Zheng and colleagues explored mechanisms of oral health risk by exposing rats to transmucosal or intravenous buprenorphine.”
    “Applying advanced quasi-experimental and mechanism-exploring methods, these 2 studies distinctly advance the plausibility of a causal relationship between TMB and oral health problems that underscores the urgency of testing risk-mitigating measures.”
  • The paper relies on this without support.

    Streptococcus mutans is the primary agent in tooth decay.

    “a condition proposed to increase risk for biofilm formation of Streptococcus mutans, the primary agent in tooth decay.”
2 of 2

Cites

Flagged first, then by citations

3 of the 14 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. Mariolis, 2019, A systematic review of the effectiveness of buprenorphine for opioid use disorder compared to other treatments: Implications for research and practice, J Addict Res Ther, 10, 379

Cited by

Sorted by citations

Authors
Black, A. C., & Becker, W. C.
Affiliations
Yale University (US)
Corresponding author
Black, Anne C.
Venue
Journal of Addiction Medicine
Published
2025-03-11
Volume
19
Issue
5
Pages
507-509
ISSN
  • 1932-0620 (ISSN-L)
  • 1935-3227
OpenAlex
W4408302066
Cited by
1
References
14
Citations by year
2026: 1
FWCI
0.91
Type
journal article
Language
en
Open access
Locations
  • Journal of Addiction Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Drug Abuse (U24DA058673, RM1DA055310)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Opioid Use Disorder Treatment
  • Health Sciences › Medicine › Anesthesiology and Pain Medicine › Pain Management and Opioid Use
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords
opioid use disorder, oral health, dental caries, sublingual administration, salivary glands, FDA warning, oral hygiene, long-acting injectable buprenorphine, opioid overdose
MeSH terms
Analgesics, Opioid, Animals, Buprenorphine, Humans, Narcotic Antagonists, Opioid-Related Disorders, Rats

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