Athlete Oral Health Statistics (2026): Every Major Study, Summarized

Elite athletes brush their teeth more faithfully than the general population — yet their dental health is measurably worse. A landmark 2019 study of 352 UK elite athletes (Gallagher et al., British Dental Journal) found 49.1% had untreated tooth decay, 77% showed signs of gingivitis, and 32% said poor oral health had directly hurt their training or performance — despite 94% reporting they brushed twice daily. The paradox is consistent across every major screening study conducted to date.

This page compiles every significant published dataset on athlete oral health in one place. See our Sports Drinks pH Database for one of the core causes →

What Does the Research Actually Say?

The most widely cited dataset in sports dentistry is the 2019 UCL Eastman / British Dental Journal study led by Ian Gallagher and colleagues. The headline numbers:

• Sample: 352 elite UK athletes across 11 sports
• Untreated dental caries (decay): 49.1%
• Gingivitis: 77.0%
• Dental erosion: 44.6%
• Periodontitis: 14.7%
• Brushing twice daily: 94.4%
• Reported oral health impaired training or performance: 32.0%

The brushing figure is the number that stops people short. These are not people ignoring their teeth. They are, by self-report, more diligent than most adults — and yet their mouths are measurably worse. The authors concluded that brushing frequency alone cannot offset the combined effect of sports nutrition acidity, exercise-induced dry mouth, and irregular professional dental care.

What Do Olympic Athlete Screenings Show?

London 2012

The London 2012 screening of 302 Olympic and Paralympic athletes (Needleman et al., 2013, British Journal of Sports Medicine):

• Dental caries: 55% of athletes
• Dental erosion: 45%
• Periodontal disease (moderate or severe): 15%
• Athletes who reported oral health affected performance: 18%
• Self-reported high oral-health impact (OHIP-14 score): 28%

The 2013 BJSM paper noted that many athletes had not visited a dentist in the preceding 12 months, and that the free screening at the Olympic Village was the first professional dental examination some had received in years.

Rio 2016

The Rio 2016 dataset (Soares et al., 2019, British Journal of Sports Medicine) screened 287 athletes across more than 25 countries and sport disciplines:

• Untreated caries: 38.0%
• Dental erosion: 32.0%
• Gingivitis: 76.0%
• Athletes who said oral health bothered them during training: 46.0%
• Athletes who said it affected performance: 29.0%

What Does the Systematic Review Find?

A 2024 systematic review and meta-analysis (NCBI PMC12731738) pooled data from studies of competitive athletes across multiple countries and sports. The ranges reflect inter-study variation driven by sport type, age, and measurement methodology:

• Dental caries: 20–84% (widest range; highest in team sports with high sugar-gel use)
• Dental erosion: 42–59% (consistently elevated vs. general population comparators)
• Gingivitis: 58–77% (most consistent finding across all sports and levels)
• Periodontitis: 15–41% (higher in older athlete cohorts, 25+)
• Dry mouth (xerostomia): 22–48% (linked to mouth breathing and stimulant supplement use)

The review's authors concluded that gingivitis prevalence in athletes substantially exceeds general population rates (typically 20–30% in comparable age groups) and that the most modifiable risk factor is sports nutrition practice — specifically the frequency and duration of acid exposure from drinks and gels.

How Does Diet Factor In?

A 2024 paper in MDPI Medicina (doi:10.3390/medicina60020319) examined the relationship between sports diet patterns and oral health outcomes in competitive athletes:

• Athletes consuming sports gels, chews, or drinks more than 4 times per week had significantly higher erosion scores than those using them 1–2 times per week.
• The duration of acid exposure (sipping over 90+ minutes vs. consuming in a single bolus) was a stronger predictor of erosion than total acid quantity consumed.
• Athletes in weight-class sports (combat sports, gymnastics, rowing lightweight) showed the highest rates of erosion.
• Post-exercise high-sugar recovery nutrition (consumed within 30 minutes of training, when enamel is already acid-softened) was flagged as an underappreciated risk window.

Are There Differences by Gender?

A gender-stratified analysis (NCBI PMC12115768) examined oral health outcomes in male and female competitive athletes across 8 sports:

• Male athletes showed higher rates of untreated caries (52% vs. 41% in females) and dental trauma history.
• Female athletes showed higher rates of erosion in some sport categories, particularly endurance sports.
• Periodontal disease prevalence was broadly similar across genders when controlling for sport type.
• Female athletes in aesthetic sports (gymnastics, figure skating, synchronized swimming) had elevated erosion rates consistent with known patterns of disordered eating and acidic sports drink reliance.
• Both genders showed similarly high rates of gingivitis, reinforcing the view that periodontal inflammation in athletes is primarily exercise-physiology driven.

What Does the 2025 BDJ Review Conclude?

The most recent major synthesis, published in the British Dental Journal in 2025 (nature.com/articles/s41415-025-8909-7), reviewed the cumulative evidence from more than a decade of Olympic screenings and cohort studies. Its headline conclusions:

1. The oral health gap between athletes and the general population has not narrowed since the first London 2012 screening — despite significantly greater awareness in elite sport.
2. Gingivitis remains the most prevalent finding, affecting the majority of elite athletes in every cohort studied.
3. Sports nutrition practices are the primary modifiable driver of dental erosion and caries in athletes.
4. Dental care utilization remains low: a substantial minority of elite athletes attend a dentist less than once per year.
5. The review called for integration of oral health into athlete performance support programs at national governing body level.

Why Does the Paradox Persist?

The most common question researchers and sports dentists encounter when presenting this data to athletes, coaches, and performance support teams is some version of: "If elite athletes brush more than the general population, why is their dental health worse?" The answer requires understanding that brushing twice daily removes plaque bacteria from accessible tooth surfaces — it is an important and necessary habit — but it addresses only one of the five mechanisms driving dental disease in athletes. The four it does not address (sports nutrition acids, dry mouth, bruxism, and irregular dental care) are all more strongly linked to the specific conditions of athletic training than to any hygiene behavior. Brushing harder and longer will not neutralize the acid in a sports gel; it will not increase salivary flow during a two-hour run; it will not prevent jaw clenching under competition pressure; and it will not put a dentist in an athlete's support team. The habits that protect athlete teeth are not more of the same habit — they are different habits addressing different mechanisms.

What Is the Consistent Thread Across All Studies?

Reading across seven independent datasets from three continents and thirteen years of research, two findings hold with unusual consistency. First, gingivitis prevalence in competitive athletes substantially exceeds general population rates regardless of sport type, competitive level, country, or the decade in which the screening was conducted. This consistency suggests that something intrinsic to athletic training — rather than any sport-specific exposure — is driving periodontal inflammation. The most plausible mechanism is the systemic inflammatory load of high-volume training combined with exercise-induced changes to saliva composition and flow. Saliva produced during intense exercise differs in composition from resting saliva: it has lower buffering capacity, reduced antimicrobial protein concentrations, and higher levels of stress hormones that can alter the oral microbiome. An athlete who trains intensely for 10–20 hours per week spends a significant fraction of their waking hours in this altered oral environment — and the cumulative effect shows up consistently in the data as elevated gingivitis rates across every sport, every country, and every level of competition studied.

Second, self-reported performance impact is higher than most people in sport would expect. Across the three largest independent datasets — BDJ 2019, London 2012, and Rio 2016 — between 18% and 32% of athletes said their oral health had directly hurt their training or competition. That is not a rounding error. It is a finding that appears in elite populations across radically different sports, countries, and competitive contexts, and it has remained consistent across more than a decade of independent research. A problem that nearly one in three elite athletes says is affecting their performance deserves to be treated as a performance factor, not a personal hygiene footnote.

Master Table: All Major Studies

• Gallagher et al. (UCL Eastman), BDJ 2019 — 352 elite UK athletes — 49.1% untreated decay; 77% gingivitis; 94% brush twice daily; 32% performance impact
• Needleman et al., Br J Sports Med 2013 — 302 Olympic/Paralympic athletes (London 2012) — 55% caries; 45% erosion; 18% performance impact
• Soares et al., Br J Sports Med 2019 — 287 athletes (Rio 2016) — 38% caries; 76% gingivitis; 29% performance impact
• PMC12731738 systematic review, 2024 — Multi-study pooled data — Caries 20–84%; erosion 42–59%; gingivitis 58–77%; periodontitis 15–41%
• MDPI Medicina sports diet study, 2024 — Competitive athletes, multi-sport — Acid exposure frequency > total acid quantity as erosion predictor; weight-class sports highest risk
• PMC12115768 gender analysis, 2024 — Male/female athletes, 8 sports — Males: higher caries; females: higher erosion in endurance; gingivitis equal
• BDJ Review, 2025 — Synthesis of post-2012 literature — Oral health gap unchanged since 2012; sports nutrition primary modifiable driver; low dental utilization

Related reading: Why Athletes Have Bad Teeth · Sports Drinks and Enamel Erosion · Dental Erosion Guide for Athletes · Periodontal Disease in Athletes · How Common Are Dental Problems in Table Tennis? · The Complete Oral Health Picture

Data compiled for The Athlete's Mouth — an Edges & Nets guide. Last updated June 2026.

Frequently asked questions

What percentage of elite athletes have tooth decay?

Studies range from 20% to 55% depending on sport, country, and methodology. The most-cited figure is 49.1% from the 2019 UCL Eastman study of 352 UK elite athletes (Gallagher et al., British Dental Journal). Across the pooled systematic review literature (NCBI PMC12731738, 2024), the range is 20–84% across different athlete populations.

Why do athletes have worse dental health than non-athletes despite better hygiene habits?

The 2019 UCL Eastman data showed 94% of elite athletes brush twice daily — yet have higher rates of caries, erosion, and gingivitis than general population comparators. The established mechanisms are: acid exposure from sports drinks and gels; exercise-induced dry mouth reducing saliva's enamel-buffering function; post-training recovery nutrition consumed when enamel is already acid-softened; and infrequent professional dental care due to travel and training schedules.

Which sports have the worst dental health outcomes?

Contact sports (rugby, boxing, hockey) show the highest trauma rates. Endurance and team sports with heavy fueling protocols (cycling, triathlon, football) show the highest erosion and caries rates. Weight-class sports (combat sports, gymnastics) show elevated erosion linked to acidic products during weight management. Gingivitis is consistently high across all sport types.

Does poor oral health actually affect athletic performance?

Yes, per athlete self-report data. In the BDJ 2019 study, 32% of 352 elite athletes said oral health had hurt their training or performance. In the Rio 2016 screening, 29% reported a performance impact. Proposed mechanisms include pain-related training disruption, sleep disturbance from dental pain, and systemic inflammatory load from periodontal disease.

How often should athletes see a dentist?

Most sports dentistry guidance recommends twice-yearly check-ups for athletes with active fueling protocols (regular sports drink or gel use). The 2025 BDJ review noted that a substantial minority of elite athletes attend less than once per year — well below even the standard once-yearly recommendation for low-risk adults.