Additional Connections

 

Abscesses

Association of periodontal disease and the prevalence of acute periapical abscesses

Under the conditions of this study, it appears that the odds for acute periapical abscesses (PAs) are significantly higher in patients with periodontal disease (PD) seeking treatment for pain due to acute PAs.

Journal of the American Dental Association

2025

 

ADHD

Attention deficit hyperactivity disorder and dental traumatic injuries: a systemic review and meta-analysis

The findings of this study suggest a significant association between attention deficit hyperactivity disorder (ADHD) and an increased risk of traumatic dental injuries (TDIs). Individuals with ADHD were found to be nearly 2x as likely to experience TDIs compared to those without ADHD.

European Review for Medical and Pharmacological Studies

2024

 

Alopecia

Periodontitis and risk of alopecia areata: A nationwide population-based cohort study in Korea

Patients with periodontitis may be at a much greater risk of developing alopecia areata, an autoimmune disease characterized by hair loss, according to a study published on November 17 in the Journal of the European Academy of Dermatology and Venereology.

Journal of the European Academy of Dermatology and Venereology

2022

 

Antibiotics

Does timing of systemic antibiotics influence periodontal treatment outcomes? A randomized clinical trial

While the timing of antibiotic administration relative to scaling and root planing (SRP) did not influence the overall clinical efficacy of periodontal treatment, initiating antibiotics on the first day of mechanical debridement promoted a more rapid and beneficial restructuring of the subgingival microbial community.

Journal of Periodontology

2026

 

Asthma

Inhaled anti-asthmatic therapy and tooth wear in children and adolescents: a case-control study

Conclusions Inhaled asthma therapy—especially with dry powder inhalers (DPIs) and combination regimens—is associated with increased tooth wear. Emphasizing mouth rinsing after inhaler use and preventive dental care may reduce the risk in pediatric asthma patients.

Scientific Reports

2025

 

Predisposing Factors for Erosive Tooth Wear in Permanent Teeth Among Asthmatic Children and Adolescents

Asthmatic children should avoid drinking acidic drinks since longer duration of asthma medication use is already associating them with higher erosive tooth wear (ETW) presence. From the ETW point of view, metered-dose inhaled medications are more tooth-friendly than dry powder inhaled forms.

Clinical and Experimental Dental Research

2025

 

Association between asthma and periodontal disease: A systematic review and meta-analysis

Data from this systematic review strongly suggest the association of asthma with periodontal disease.

Journal of Periodontology

2018

 

Athletics

The impact of oral health on physical fitness: A systematic review

Oral health problems may have numerous effects on general health, including physical fitness and performance. In this review, we aimed to systematically review the available evidence to assess the effect of oral health on general physical fitness.

Heliyon

2020

 

Autism

 
The study revealed a high prevalence of dental caries among children with Autism spectrum disorder (ASD) in Arar, Saudi Arabia, with age being a significant factor. These findings highlight the need for targeted oral hygiene practices and regular dental visits for children with ASD to manage and prevent dental caries effectively.
 
Cureus Journal of Medical Science
 
2025

 

Auto-immune

Association between self-reported oral health issues and autoimmune diseases: evidence from UK biobank

Self-reported oral health issues were associated with an increased risk of incident autoimmune diseases, suggesting that oral health indicators may serve as clinically relevant markers of autoimmune disease risk.

BMC Oral Health

2026

 

Burden of chronic diseases associated with periodontal diseases: a retrospective cohort study using UK primary care data

In this cohort, periodontal diseases appeared to be associated with an increased risk of developing cardiovascular, cardiometabolic, autoimmune diseases and mental ill health.

BMJ Open

2022

 

Birth Control Medication

Oral Contraceptive Use Is Associated With Increased Tenderness to Palpation in the Masticatory System in Female Adolescents—Results of the Epidemiological LIFE Child Study

The use of oral contraceptives (OCs) has been demonstrated to enhance the likelihood of encountering self-reported headaches and increased tenderness to palpation within the masticatory system in female adolescents. Consequently, the utilization of OC in female adolescents with temporomandibular disorders warrants further consideration.

Journal of Oral Rehabilitation

2026

 

Blood Disorders

Dental caries was more prevalent among anemic children compared to non-anemic ones with a low level of certainty.

Journal of Human Nutrition and Dietetics

2025

 

Bone Density

New insights into the correlation between bone mineral density and dental caries in NHANES 2011-2016

Monitoring bone mineral density (BMD) should be combined with appropriate oral healthcare and caries management strategies to effectively address these interconnected health issues, and particular attention should be paid to the monitoring of head BMD.

Scientific Reports

2024 

 

Bone Marrow Disease

Oral health status of patients with inherited bone marrow failure syndromes

Oral health may be impaired in these patients related to the disease itself, due to cytopenia, or related to the drugs the patients use, such as glucocorticoids.

Pediatric Dental Journal

2022

 

Brain

Association Between Self-Reported Psychiatric Diseases and Oral Health Among Older Adults

Older adults with self-reported psychiatric diseases, females, and those without dental access exhibited higher rates of tooth loss. Public policies should aim to integrate mental and oral health, ensuring equitable access to dental care for these most vulnerable groups.

Special Care in Dentistry

2026

 

We examined how early life exposures to mixtures of metals affect children’s brain and behavior using naturally shed “baby” teeth as a biomarker of direct exposure. Findings suggest that the developing brain is especially vulnerable to metals in early life, with lasting effects into adolescence.

Science Advances

2026

 

The present study revealed that the impact of tooth loss on cognitive decline was not dependent on the low-protein diet condition.

Archives in Oral Biology

2026

 

Periodontal disease (PD) was independently associated with greater white matter hyperintensities (WMHs) burden, a key imaging marker of cerebral small vessel disease (CSVD), but not with cerebral microbleeds (CMBs) or lacunar infarcts after adjustment for confounders. This suggests that PD may contribute to CSVD pathology, particularly WMHs, through mechanisms involving systemic inflammation. Limitations include the temporal gap between dental and imaging assessments and potential residual confounding. Interventions targeting PD could be explored as a modifiable risk factor for CSVD prevention.

Neurology Open Access 

2025

 

Microbiome signatures of virulence in the oral-gut-brain axis influence Parkinson’s disease and cognitive decline pathophysiology 

Our findings highlight the significance of the oral-gut-brain axis and underscore its potential for discovering novel biomarkers for Parkinson’s Disease (PD) and cognitive impairment (CI). 

Gut Microbiomes 

2025

 

Clinical and Radiological Markers of Periodontal Status and Risk of Cognitive Decline and Incident Dementia 

Poor periodontal health may increase the risk of cognitive decline. Future studies into the underlying mechanisms are warranted. 

Journal of Clinical Periodontology 

2025

 

Celiac Disease

Celiac disease and its implications on the oral health of children: A systematic review

Oral manifestations may precede gastrointestinal symptoms. Patients presenting such manifestations should be screened for coeliac disease. The cooperation of gastroenterologists and dentists could lead to an increased detectability of coeliac disease.

Journal of Pediatrics and Child Health

2023

 

Oral and dental manifestations of celiac disease in children: a case-control study

(Saudi) children with Celiac Disease had a greater number of clinical findings of recurrent aphthous stomatitis (RAS) and dental enamel defects (DEDs) than healthy controls.

BMC

2022

 

Climate Change

 
A total of 10 papers were included in the final review. The findings from different papers have reported direct/indirect associations of climate change with oral diseases and conditions such as dental caries, dental erosion, and oral cancer; developmental defects of enamel; early childhood caries; periodontal disease; and dental trauma, skeletal, and dental fluorosis.
 
BDJ Open
 
2025

 

COVID

Alveolar bone loss and tooth loss are associated with COVID-19 severity but are not independent risk factors. An explorative study

In this retrospective explorative pilot study, alveolar bone loss and tooth loss are associated with the severity of COVID-19, however they are not independent risk factors.

Advances in Oral and Maxillofacial Surgery

2021

 

Epilepsy

Causal relationship between oral microbiota and epilepsy risk: Evidence from Mendelian randomization analysis in East Asians

This study underscores the effect of oral microbiota (OM) on epilepsy, suggesting potential mechanisms between the OM and epilepsy. Further investigation into the potential role of the OM is needed to enhance our in-depth understanding of the pathogenesis of epilepsy.

Epilepsia Open

2024

 

Erectile Dysfunction

Periodontitis is strongly associated with severe ED (SED) treated with penile prostheses, linked to lower endothelial nitric oxide synthase (eNOS) expression in penile tissue. Diabetes and age were identified as additional independent risk factors for SED.

Journal of Periodontology

2025

 

Associations of remaining teeth number, periodontal disease, and occlusal support status with erectile dysfunction in community-dwelling men

Poor occlusal support status was significantly associated with Erectile Dysfunction (ED) in community-dwelling men, as opposed to remaining teeth number and periodontal health status.

International Journal of Urology

2024

 

Eye health

Association between poor oral health and risk of glaucoma

Article:
Eye spy: Exploring the mouth-eye connection (EXCELLENT FOOTNOTES)

The purpose of our study was to explore further the association between chronic periodontitis and glaucoma in a retrospective case-control study design.

Investigative Ophthalmology and Visual Disease

2022

 

Gastrointestinal Conditions

Association between gastroesophageal reflux disease and peptic ulcer in adults and the development of periodontal changes and dental caries:  Systematic review and meta-analysis

Based on literature and meta-analyzes with few studies, evidence suggests that individuals with gastroesophageal reflux disease (GERD) and peptic ulcers were more likely to have periodontal disease and caries compared to individuals without these conditions.

Journal of Evidence-Based Dental Practice

2026

 

A systematic review and network meta-analysis of the association between periodontitis and inflammatory bowel diseases

Ulcerative colitis (UC) and Crohn’s disease (CD) patients were more likely to develop periodontitis, with low heterogeneity between studies, while the prevalence of periodontitis among UC and CD patients was not meaningfully different.

BMC Oral Health

2025

 

Periodontitis and the Incidence of Inflammatory Bowel Diseases: A Nationwide Population-Based Cohort Study

Periodontitis may augment the risk of incidence for Crohn’s disease (CD) and ulcerative colitis (UC). This association underscores the potential significance of periodontal health in the context of IBD, emphasizing the importance of comprehensive oral hygiene practices and potential preventive strategies to reduce the risk of CD and UC incidence.

The American Journal of Gastroenterology

2025

 

Oral microbiome dysbiosis is associated with precancerous lesions and disorders of upper gastrointestinal tract: A population-based study 

Dysbiosis of the saliva microbiota is linked to various upper gastrointestinal (UGI) disorders. However, microbiota dysbiosis in subgingival and buccal mucosa sites are specifically associated with the pre-malignant conditions Barrett’s esophagus and gastric atrophy. The oral microbiome, particularly in the subgingival location, might act as biomarkers for UGI cancers.

The American Journal of Gastroenterology 

2024

 

Bidirectional associations between periodontitis and inflammatory bowel disease: A systematic review of longitudinal studies with meta-analysis and trial sequential analysis 

Based on limited longitudinal evidence, patients with periodontitis do not exhibit an increased risk of developing IBD overall, but they are at increased risk of ulcerative colitis (UC); not Crohn’s disease (CD). 

Journal of Periodontal Research 

2024

 

Periodontitis Prevalence and Severity in Inflammatory Bowel Disease: A Case-Control Study

Relevant associations between inflammatory bowel disease (IBD) and periodontitis were found, being modified by Crohn’s disease (CD) and ulcerative colitis (UC) clinical characteristics.

Journal of Periodontology

2022

 

Gut Health

Oral microbiota shifts following tooth loss affect gut health

In the mouse model, tooth loss disrupted the balance of the oral-gut microbiota, with potential implications for intestinal health. Although these findings are from a murine model, considering the existence of the oral-gut axis balance in the human body, it is reasonable to postulate that following tooth loss in humans, the health of the intestinal microecology may also warrant attention.

BMC Oral Health

2025

 

Hemophilia

Evidence-based dental management strategies for individuals with congenital hemophilia: a systematic review

The use of prophylactic clotting factors during dental interventions in hemophilia patients showed notable inconsistencies across studies. This inconsistency underscores the importance of conducting larger, prospective clinical studies to better understand the rationale behind clotting factor use and its effects on dental treatment outcomes in patients with varying degrees of hemophilia severity.

BMC Oral Health

2026

 

Assessment of Oral Health and Healthy Habits in Adult Patients with Congenital Hemophilia

Patients with hemophilia have an increased risk of developing dental caries.

European Journal of Dentistry

2022

 

Hip Replacement

The Association of Dental Caries or Dental Implant Placement Within One Year of Primary Total Hip Arthroplasty on Medical and Implant Complications

Dental diagnoses within 12 months of Total hip arthroplasty (THA) are associated with increased medical complications. Dental diagnoses occurring 12 months after THA are associated with greater implant-related complications, including periprosthetic joint infections (PJIs). Delaying invasive dental procedures for 12 months after THA may be advisable.

The Journal of Athroplasty

2024

 

HIV

Postmenopausal women with HIV have increased tooth loss

Postmenopausal women with HIV have deterioration of the alveolar trabecular bone microarchitecture that may contribute to greater tooth loss.

BMC Oral Health

2024

 

Human Papillomavirus (HPV)

Human Papillomavirus Infection as a Risk Factor for Oral Leukoplakia: A Systematic Review and Meta-Analysis

Oral human papillomavirus (HPV) infection, especially with high-risk HPV, is significantly associated with OL. Further prospective trials are encouraged to validate these results and elucidate the exact role of HPV in oral leukoplakia (OL).

International Dental Journal

2025

 

Relationship between vaginal and oral microbiome in patients of human papillomavirus (HPV) infection and cervical cancer

Human papillomavirus (HPV) infection and cervical cancer (CC) impact both the vaginal and oral microenvironments, affecting systemic metabolism and the synergy between bacteria. This suggests that the use of oral flora markers is a potential screening tool for the diagnosis of CC.

Journal of Translational Medicine

2024

 

Infertility

Exploring the link between periodontal disease and sperm quality: a comprehensive systematic review study 

This review highlights the systemic implications of periodontal disease on male reproductive health. Given the global decline in male fertility, maintaining oral health may serve as an adjunct strategy in managing infertility. Future research should prioritize large-scale, longitudinal studies to establish causality and explore preventive interventions. 

BMC Oral Health 

2025

 

Liver Function

The relationship between fixed dental prostheses, blood lead levels, and liver function: Mediating effects and gender differences

An increased count of fixed prostheses is associated with changes in liver function markers in a gender-dependent manner, with blood lead levels serving as a potential mediator in males.

Environmental Pollution

2024

 

Lupus

Comparative study of the profile of supragingival dental plaque and tooth decay in patients with lupus erythematosus and rheumatoid arthritis

Dental decay and the fungal and bacterial flora of supragingival dental plaque patients are higher than in the healthy group. It is recommended that these patients pay more attention to their oral hygiene and undergo periodic oral examinations.

BMC Oral Health 2025

 

Medication

Radiomics Analysis for Predicting Medication-Related Osteonecrosis of the Jaw Using Computed Tomography

Radiomics analysis of pretreatment multidetector row computed tomography (MDCT) images may accurately predict

Oral Diseases – Leading in Oral,

2026

 

Effect of different medications on implant complications and success rate: A retrospective study

Self-reported and prescribed medications were associated with adverse implant outcomes. Antidepressants, opioids, and oral bisphosphonates were linked to peri-implant and mechanical complications, whereas antibiotic exposure and the use of chlorhexidine gluconate were associated with reduced soft tissue complications.

The Journal of Prosthetic Dentistry

2026

 

This cross-sectional study found that the US dental opioid dispensing rate is decreasing but remains high by international standards. Findings suggest opportunities to reduce this rate exist. This notion is further supported by data showing that two-thirds of US dental opioid prescriptions are for tooth extraction, a procedure for which ibuprofen and acetaminophen are equally effective for pain control.4,5 Compared with the Netherlands, Germany, and Belgium, dental opioid dispensing rates were consistently higher in Canada, France, Australia, and Puerto Rico, suggesting opportunities to reduce these rates may also exist.
 
JAMA Network
 
2026 

 

Neurological Disorders

Association Between Migraine and Periodontitis: A Systematic Review and Meta-Analysis

Through this meta-analysis, we have seen how there is a statistically significant relationship between periodontitis and migraine.

European Journal of Neurology

2025

 

Looking at Burning Mouth Syndrome Brain: The Prevalence of Idiopathic Intracranial Hypertension Radiologic Signs in BMS Patients 

The higher prevalence of Idiopathic intracranial hypertension (IIH) signs on neuroimaging (empty sella, enlargement of the optic nerve sheets and dural sinus stenosis) in burning mouth syndrome (BMS) patients compared to HCs highlights that BMS should be considered a chronic neurological disorder. 

Journal of Oral Rehabilitation 

2025

 

Through this meta-analysis, we have seen how there is a statistically significant relationship between periodontitis and migraine.

European Journal of Neurology

2025

 

Oral Microbiome

Oral microbiome and pancreatic cancer

Combined symptom and microbiome evaluation may help in the early detection of pancreatic cancer.

World J Gastroenterol.

2020

 

Pneumonia

Effectiveness of oral care for the prevention of non-ventilator hospital-acquired pneumonia (HAPPEN): a multicentre, stepped-wedge, cluster-randomised trial in Australia

This multicentre randomised controlled trial demonstrates that improving oral care reduces non-ventilator hospital-acquired pneumonia (NV-HAP) incidence among hospitalised patients, compared with usual care. Our findings provide novel and clinically important evidence to inform future prevention guidelines and hospital infection control policy.

The Lancet Infectious Diseases

2026

 

Implementing structured oral care at least 2 weeks before surgery reduced postoperative pneumonia and shortened hospital stays across various surgical procedures, suggesting its value as a preventive strategy for improving surgical outcomes.

Plos One

2025

 

Association Between Daily Toothbrushing and Hospital-Acquired Pneumonia: A Systematic Review and Meta-Analysis

The findings of this systematic review and meta-analysis suggest that daily toothbrushing may be associated with significantly lower rates of Hospital-acquired pneumonia (HAP), particularly in patients receiving mechanical ventilation, lower rates of ICU mortality, shorter duration of mechanical ventilation, and shorter ICU length of stay. Policies and programs encouraging more widespread and consistent toothbrushing are warranted.

JAMA Internal Medicine

2023 

 

Compositional shifts within the denture-associated bacteriome in pneumonia – an analytical cross-sectional study Open Access

Within the limitations of this study, our evidence supports the role of denture acrylic biomaterials as a potential colonization site for putative respiratory pathogens, which may lead to an increased risk of pneumonia in susceptible individuals. These findings support prior observational studies which have found denture-wearers to be at increased risk of respiratory infection. Further research is needed to confirm the sequence of colonization and translocation to examine potential causal relationships.

Journal of Medical Microbiology

2023

 

Oral health status of patients with inherited bone marrow failure syndromes

Article:
Hospital-Acquired Pneumonia Is Killing Patients. Yet There Is a Simple Way to Stop It.

Lack of dental care during inpatient stays may be responsible for hundreds of thousands of hospital-acquired infections each year, including nonventilator hospital-acquired pneumonia, which can be fatal in up to 30% of infected patients, especially those lying flat or staying immobile for long periods of time. A greater focus on brushing patients’ teeth regularly during hospital stays is needed, some experts say.

Kaiser Health News

2022

 

PTSD

Exploring post-traumatic stress among patients at a clinic for orofacial pain and dysfunction

The presence of PTSD in this clinical sample was associated with the presence of painful TMD and awake bruxism. The presence of a reported potentially traumatic event without PTSD was not associated with painful TMD or awake bruxism. Finally, when examining symptom severity, the severity of awake bruxism was correlated to post-traumatic stress symptoms.

Journal of Dentistry

2025

 

Sarcopenia

Edentulism as an independent risk factor for sarcopenia: evidence from cross-sectional and longitudinal analyses based on the CHARLS cohort

Edentulism is a robust, independent marker of elevated sarcopenia risk in Chinese adults, with particularly strong effects in socio-economically vulnerable subgroups. Routine oral-health screening should be integrated into geriatric assessments to identify patients at high risk for sarcopenia.

BMC Oral Health

2025

 

Exploring post-traumatic stress among patients at a clinic for orofacial pain and dysfunction

The presence of PTSD in this clinical sample was associated with the presence of painful TMD and awake bruxism. The presence of a reported potentially traumatic event without PTSD was not associated with painful TMD or awake bruxism. Finally, when examining symptom severity, the severity of awake bruxism was correlated to post-traumatic stress symptoms. 

Journal of Dentistry 

2025

 

Sickle Cell Anemia

Sickle Cell Disease and Dental Care Access Among Medicaid-Enrolled Youths (Supporting article: 

 
Children with sickle cell disease are more likely to have dental problems — but fewer than half of those covered by Michigan Medicaid got dental care in 2022.
 
JAMA Network
 
2025

 

Spinal Pain

Association between preadolescent spinal pain and painful temporomandibular disorders and headache in young adulthood

Spinal pain in preadolescence was associated with significantly higher odds of painful temporomandibular disorders (p-TMD)and headache in young adulthood. These findings suggest that preadolescent spinal pain may represent an early marker of vulnerability to p-TMD and headache in young adulthood.

The Journal of Pain

2026

 

Sjogren’s Syndrome

Characterizing clinical findings of Sjögren’s Disease patients in community practices using matched electronic dental-health record data

This study of Sjogren’s Disease patients diagnosed in community practices characterized three different Sjogren’s Disease clinical presentations, which can be used to generate Sjogren’s Disease study cohorts for longitudinal studies using electronic health record data.

Plos One

2023

 

Transplants

Impact of Dental Status on Heart Transplantation Outcomes

Poor dental health was not directly associated with post-transplant mortality but was linked to a higher sepsis risk, which negatively affected outcomes.

Oral Diseases 

2025

 

Vaccines

The potential association between oral lichen planus and vaccination against hepatitis B. A real-world study analyzing data from approximately 200,000 patients

This study demonstrates a statistically significant but modestly increased risk of oral lichen planus (OLP) and oral lichenoid lesions (OLL) following hepatitis B vaccination. Given the small effect size and observational design, the findings should be interpreted as hypothesis-generating.

BMC Oral Health

2025

 

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