Oral implications of alcohol consumption

Alcohol consumption remains one of the most common and socially accepted substance use behaviors today.¹ Most alcohol consumption is viewed as culturally acceptable, yet the implications of heavier and long-term alcohol use present significant public health concerns.²

Alcohol use disorder

Alcohol use disorder (AUD) is a chronic medical condition characterized by a lack of control over alcohol consumption.³ AUD is associated with systemic and oral effects that can compromise health. Chronic alcohol use is linked to cognitive deficits, memory loss, inflammatory and cardiovascular conditions, and acts as a risk factor for various malignancies, particularly of the liver, breast, and gastrointestinal tract.⁴

AUD is categorized as mild, moderate, or severe depending on the frequency, type, concentration, and volume of alcohol ingested. Even intermittent patterns of use, such as binge drinking or weekend consumption, can lead to mucosal irritations in the oral cavity. Research has indicated that alcohol consumption can reduce salivary flow, lower oral pH, disrupt the balance of microorganisms in the mouth, compromise epithelial barriers, enhance oxidative stress, and potentially produce carcinogenic changes.^4,5

Alcohol’s effects on systemic health

Various alcoholic beverages possess unique chemical compositions and varying levels of acidity that can influence effects on oral and systemic health. Beer exhibits acidity levels that can contribute to softening of enamel and promote growth of cariogenic bacteria. Wine demonstrates a more pronounced erosive effect, lowering pH and elevating acidity. Distilled spirits (hard alcohols) possess higher concentrations of ethanol and increase tissue exposure to acetaldehyde, a recognized carcinogen.⁶

Alcohol consumption has varying effects on individuals, influenced by factors such as drinking patterns and personal tolerance levels.⁷ Research indicates that a blood alcohol concentration (BAC) of 0.08% or higher is identified as four drinks in women and five in men within two hours or less.³ Moderate alcohol consumption is defined as a maximum of one drink per day for women and up to two drinks per day for men. Binge drinking (high concentrations of alcohol in a short period of time) has also been linked to acute mucosal injury and epithelial changes.

Alcohol’s effects on oral health

Oral effects are often described as ongoing dry mouth, difficulty swallowing, increased thirst, and changes in taste. Decreased salivary flow contributes to enamel wear, erosion, and demineralization.¹ Increased plaque accumulation raises the risk for cervical caries, root caries, and dentinal hypersensitivity.^8,9

Clinical findings of alcohol use may include inconsistent oral hygiene habits, redness, swelling, bleeding on probing, attachment loss, or bone resorption.⁵ Soft tissue changes may appear as mucosal irritation, nonremovable white plaques, red patches, or ulcerated areas that do not heal.

The gradual damage resulting from repeated alcohol exposure often shows subtle signs at first, but may develop into significant long-term health complications such as a heightened risk of opportunistic infections like candidiasis.¹⁰ Over time, AUD weakens immune function, contributing to delayed wound healing and slower recovery following extractions, periodontal therapy, or other invasive treatments.⁴ These changes can lead to epithelial dysplasia, which increases the risk of oral malignancies.

Responsibilities of the dental hygienist

AUD interventions vary depending on the severity of the condition. Key clinical responsibilities of the dental hygienist consist of conducting regular and thorough soft/hard tissue assessments; medical, social, and dental history reviews, including alcohol-related health changes; and learning to identify high-risk oral health indicators.² Medical history should include questions regarding the consumption of alcohol, including the type, frequency, and the amount consumed. As dental hygienists, we can initiate nonjudgmental conversations about the oral-systemic effects of alcohol use, including increased risk for caries, periodontal disease, and oral cancer, especially when combined with tobacco use. As always, patient safety remains a priority, and inebriated patients should be rescheduled.

Preventive strategies

Preventive strategies may include three-month recall intervals, fluoride varnish applications, prescription-strength fluoride, and saliva substitutes to manage xerostomia. While dental hygienists are not substance use counselors, we do serve as a key referral point by coordinating care with the dentist and primary care provider. The NIAAA Alcohol Treatment Navigator is a helpful resource for locating evidence-based treatment providers.³ Treatment options may include FDA-approved medications, behavioral therapies, and structured programs such as Alcoholics Anonymous (AA), SMART Recovery, and similar programs.

Alcohol consumption is a significant public health concern with clear and measurable consequences for oral and systemic health. Dental hygienists are in a unique position to routinely assess oral tissues and initiate meaningful conversations about early warning signs related to alcohol use. By incorporating risk assessments, patient-centered educational strategies, preventive interventions, and appropriate referrals into their daily practice, dental hygienists can transcend traditional roles and evolve into advocates for preventive health care.

Editor’s note: This article first appeared in RDH eVillage newsletter, a publication of the Endeavor Business Media Dental Group. Read more articles and subscribe.

References

1. Chartier K, Caetano R. Ethnicity and health disparities in alcohol research. Alcohol Res Health. 2010;33(1-2):152-160.
2. Cipollina J. The race to health equity: oral health disparities persist among racial & ethnic minorities. OHNEP. February 23, 2021. Accessed March 23, 2026. https://nursing.nyu.edu/w/ohnep/blog-2021-2-23
3. Alcohol’s effects on health: research-based information on drinking and its impact. National Institute on Alcohol Abuse and Alcoholism. Updated January 2025. Accessed March 27, 2026. https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/understanding-alcohol-use-disorder
4. Shaker A. Physiologic and molecular effects of alcohol in the esophagus: a narrative review. Ann Esophagus. 2025;8:10. doi:10.21037/aoe-24-46
5. Olariu I, Irimie C, Serb N, et al. Alcohol consumption and oral health. 2024;30(2):280-292. doi:10.70921/medev.v30i2.929
6. Kusonić D, Bijelić K, Kladar N, Torović L, Čonić BS. Health risk assessment of ethyl carbamate in fruit spirits. Food Addit Contam Part B Surveill. 2023;26:1-11. doi:10.1080/19393210.2023.2262956
7. Berman JO. Socioeconomic status and addiction. EBSCO. 2024. Accessed March 26, 2026. https://www.ebsco.com/research-starters/sociology/socioeconomic-status-and-addiction#full-article
8. Ali AST, Alhamdan FZ, Thabet FT, Alsuwaidan NK, Almontashri RM, Alanazi RM. Dental erosion prevalence and risk factor in hypersensitive patients. J Pharm Bioallied Sci. 2024;16(Suppl 3):S2470-S2472. doi:10.4103/jpbs.jpbs_319_24
9. Zupo R, Castellan F, De Nucci S, et al. Beverages consumption and oral health in the aging population: a systematic review. Front Nutr. 2021;8. doi:10.3389/fnut.2021.762383
10. Gonzalez-Lopez LL, Morales-Gonzalez A, Sosa-Gomez A, et al. Damage to oral mucosae induced by weekend alcohol consumption: the role of gender and alcohol concentration. Appl Sci. 2022;12(7):3464. doi:3390/app12073464