| Not Yet Recruiting | Structural and Intermediary Social Determinants of Oral Health Among Egyptian Women NCT04138550 | Misr International University | — |
| Not Yet Recruiting | Egyptian Dental Professionals' Perspectives on the Oral Microbiome and Exosomes NCT07374575 | Cairo University | — |
| Not Yet Recruiting | Dysbiosis of Methanogenic Archaea and Nanoarchaea in the Oral Microbiome NCT07521644 | Assistance Publique Hopitaux De Marseille | N/A |
| Not Yet Recruiting | Influence of Finishing Clear Aligner Marginal Termination Design on Subgingival Periodontal Microbiota During NCT07533058 | George Emil Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures | N/A |
| Recruiting | Validation Of The Turkish Version Of The Oral Assessment Sheet NCT07507864 | Necmettin Erbakan University | — |
| Not Yet Recruiting | Oral Health Education for Pregnant Women NCT07413393 | University of Valencia | N/A |
| Active Not Recruiting | Ecofriendly Versus Nylon Tooth Brushes on Cariogram Outcomes NCT07467538 | Cairo University | N/A |
| Recruiting | Oral Indicators for ED Screening NCT07295197 | University of Bologna | — |
| Not Yet Recruiting | AI Toothbrush and Visual Pedagogy to Improve Oral Hygiene in Children With Autism Spectrum Disorder NCT07160517 | University of Sao Paulo | N/A |
| Completed | Interactive Video- and Game-Based Oral Health Education for 11-Year-Old Schoolchildren NCT07097324 | Universiti Sains Malaysia | N/A |
| Completed | Guardians Receiving Information Through Navigators NCT07147244 | KDH Research & Communication | N/A |
| Completed | Determination of the Oral Irritation Potential of Two Alcohol-Free Rinses NCT07160166 | Kenvue Brands LLC | N/A |
| Enrolling By Invitation | Parental Perception of Oral Health-Related Quality of Life in Sudanese Refugee vs. Egyptian Children NCT07011381 | Kafrelsheikh University | — |
| Recruiting | A Study on the Correlation Between Oral Health and Delirium in Surgical Inpatients NCT06969092 | Xinhua Hospital, Shanghai Jiao Tong University School of Medicine | — |
| Recruiting | Evaluating the Impact of Various Dietary Nitrate Supplements on Oral Health NCT06956612 | Shatha Alhulaefi | N/A |
| Enrolling By Invitation | Effect of Hypochlorous Acid-containing Mouthwash on Healing After Impacted Wisdom Tooth Surgery NCT06920485 | Saglik Bilimleri Universitesi | N/A |
| Not Yet Recruiting | The Effect of Body Mass Index on Taste Perception,Salivary Hormones and Oral Health Status NCT06949917 | Al-Mustansiriyah University | — |
| Completed | Effectiveness MyBRUSH Module in Improving Knowledge, Attitude, and Behaviour on Toothpaste Use and Toothbrushi NCT07125560 | Universiti Sains Malaysia | N/A |
| Recruiting | Analysis of Oral Health of Students and Former Students of Undergraduate and Postgraduate Programs at the Univ NCT06853639 | University of Sao Paulo | — |
| Unknown | Inter-organizational Health Planning for Older Adults: Public Dental Care and Municipal Care NCT06310798 | Vastra Gotaland Region | N/A |
| Not Yet Recruiting | Determining the Viability a Lozenge Dosage for Probiotics NCT06819761 | Ostia Sciences | EARLY_Phase 1 |
| Completed | Antibacterial Effect of Ozonated Olive Oil, Propolis and Chlorhexidine Mouthwashes in Pediatric Patients NCT07197073 | Alexandria University | N/A |
| Recruiting | Food Typologies and Multidimensional Phenotyping of Elderly in Auvergne-Rhône-Alpes (Part'AGE) NCT06695780 | Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement | — |
| Completed | Older Adults' Experiences of Oral Rehabilitation - a Qualitative Interview Study NCT06783426 | Folktandvården Stockholms län AB | — |
| Not Yet Recruiting | The Effects of Technological Oral Health Management NCT06529900 | Chang Gung University of Science and Technology | N/A |
| Enrolling By Invitation | Effect of Text Message Interventions in Maintaining Gingival Health in Pregnant Women NCT06594328 | University of Lahore | N/A |
| Recruiting | A Pilot Study of a Commercially-available Oil Rinse Product (PerioPull™) on Markers of Dental Health NCT06363721 | Designs for Health | N/A |
| Recruiting | Sport Mouthguards: Devices for Preventing Dental Injuries in Sports NCT06912451 | Universidade Federal do Rio de Janeiro | N/A |
| Completed | The Effect of Disclosing Dental Plaque on Plaque Index and Gingival Index in Faculty of Dentistry Students NCT06080672 | Istanbul Medipol University Hospital | N/A |
| Completed | A Study to Evaluate the Effect of a Stannous Fluoride Toothpaste on the Oral Microbiome NCT06048809 | HALEON | N/A |
| Active Not Recruiting | Involving Parents to Improve Tooth Brushing for Autistic Children. NCT06855693 | Sussex Community NHS Foundation Trust | N/A |
| Completed | The Use of Artificial Intelligence in the Dental X-rays Analysis NCT06258798 | Hospital of the Ministry of Interior, Kielce, Poland | — |
| Completed | The Effect of Oral Sprays on Salivary pH NCT06148662 | I.M. Sechenov First Moscow State Medical University | Phase 4 |
| Completed | Fruit-based Chewing Gums for Improving Oral Health NCT05755152 | University of Wisconsin, Madison | N/A |
| Unknown | Cluster RCT on the Effect of the Topics Number in Oral Health Educational Video Among Preschool Children. NCT06073392 | Universiti Sains Malaysia | N/A |
| Active Not Recruiting | Efficacy of Devices in Maintaining Oral Health and Managing Periodontal and Interproximal Tissues: a RCT NCT07520994 | University of Roma La Sapienza | N/A |
| Completed | To Exam the Efficacy of Oral Health and Mediterranean Diet Interventions in Preventing Cognitive Decline Among NCT05865340 | Taipei Veterans General Hospital, Taiwan | N/A |
| Completed | Oral Health Recovery Group NCT05864027 | University of Michigan | N/A |
| Unknown | Mobile-health Intervention to Promote Oral Health in Adolescents: A Cluster Randomized Controlled Trial NCT05448664 | The University of Hong Kong | N/A |
| Completed | SmartJournal for Improved Oral Care in Nursing Homes NCT05724043 | Oral Health Center of Expertise Rogaland, Norway | N/A |
| Completed | Oral and Jaw Health in Bipolar Patients NCT06034769 | Bandırma Onyedi Eylül University | — |
| Completed | Oral Hygiene Among Portuguese Older Adults NCT06444490 | Egas Moniz - Cooperativa de Ensino Superior, CRL | N/A |
| Unknown | Translation and Validation of the Arabic Version of the OHIP Questionnaire NCT05751902 | Future University in Egypt | — |
| Completed | Levilactobacillus Brevis Oral Health NCT06457724 | University of L'Aquila | N/A |
| Completed | What do Parents Know About Space Maintainers NCT06162754 | Recep Tayyip Erdogan University Training and Research Hospital | — |
| Completed | Educational Storytelling, an Innovative Interdisciplinary Program Against Child Maltreatment NCT06599983 | Oral Health Centre of Expertise in Western Norway | N/A |
| Recruiting | PROSENIOR. Prevention of Pressure Ulcers, Malnutrition, Poor Oral Health and Falls Among Older Persons Receivi NCT05308862 | Malmö University | N/A |
| Active Not Recruiting | Evaluation of the Use of a Novel Oral Health Screening Instrument by Caregivers in Nursing Homes NCT06536322 | KU Leuven | N/A |
| Completed | Testing Preliminary Effectiveness of a Training to Support CHWs Outreach on Dental to African American Caregiv NCT05511935 | KDH Research & Communication | N/A |
| Completed | Effectiveness of Personalized Oral Hygiene Education in Medical and Dental Students Over Two Years NCT07085013 | University of Mostar | N/A |
| Enrolling By Invitation | Prosthetic Rehabilitation and Its Influence on Masticatory Performance and QoL in Patients Treated for HNC NCT06124222 | University of Barcelona | N/A |
| Completed | Oral Health in Prison: a Study on Improving Prisoners' Oral Health NCT05695443 | Oral Health Center of Expertise Rogaland, Norway | N/A |
| Completed | The Effects of an Oral Probiotic Intervention With or Without a Novel ADP-1 Toothpaste NCT05330793 | USANA Health Sciences | N/A |
| Unknown | Prediction for Critical Outcomes of Patients With COVID-19 NCT05124587 | Academic Centre for Dentistry in Amsterdam | — |
| Unknown | Effects of Gargling With Green Tea on Oral Health of Stroke Patients NCT05037721 | Taipei Veterans General Hospital, Taiwan | N/A |
| Completed | OHRQoL and Parental Perception in a Group of Children and Adolescents With Down Syndrome: A Cross NCT04394221 | Cairo University | — |
| Completed | Experience and Understanding of the Mouth, Oral Health and Function Amongst Adults With Disabilities and Compl NCT04815434 | University Hospital, Clermont-Ferrand | — |
| Completed | Acceptance and Efficacy of a Digital Application Among Parents to Control Early Childhood Caries NCT05515510 | University Medicine Greifswald | N/A |
| Unknown | Oral Health Status in Care-dependent Community Dwelling Elders NCT04656327 | University of Zurich | — |
| Completed | Oral (Hypo-)Function, General Function and Nutritional Status in Elderly Hospitalized Patients NCT06557226 | University of Geneva, Switzerland | — |
| Withdrawn | CenteringPregnancy Oral Health Promotion NCT04001933 | University of California, San Francisco | N/A |
| Terminated | Molecular and Organizational Changes in the Human Oral Mucosa During Aging NCT04178668 | University Hospital, Toulouse | N/A |
| Completed | Prevalence, Etiology and Effects on Oral Health and Life Quality of Molar Incisor Hypomineralization NCT05779332 | Recep Tayyip Erdogan University Training and Research Hospital | — |
| Unknown | Women's Access to Mobile Phones and Willingness to Utilize mHealth Interventions for Oral Health Promotion in NCT04256109 | Ain Shams University | — |
| Completed | Oral Health Improvement for Nursing Home Residents Through Delegated Remotivation and Reinstruction NCT04140929 | University Hospital Schleswig-Holstein | N/A |
| Completed | Double-blind Clinical Trials of Probiotic Products in Oral Health. NCT04289337 | Glac Biotech Co., Ltd | N/A |
| Completed | The Effectiveness of Lay Health Advisors Strategy Intervention on Aborigines Elderly Oral Care Education NCT05046210 | Kaohsiung Medical University Chung-Ho Memorial Hospital | N/A |
| Completed | Patient-reported Outcome Measures Comparing Static Computer-aided Implant Surgery and Conventional Implant Sur NCT04950491 | Mahidol University | N/A |
| Completed | Preliminary Study of the Quality of the Oral Flora in Parkinson's Patients NCT03827551 | University Hospital, Bordeaux | N/A |
| Completed | Effect of Aloe Vera Mouthwashes on the Oral Health of Children NCT04009616 | Damascus University | N/A |
| Completed | The Impact of Oral Health Literacy on Dental Anxiety and Utilization of Oral Health Services NCT04148300 | Misr International University | — |
| Completed | A Cross-sectional Study of the Oral Health of Elderly Inpatients in Acute and Subacute Hospitals in Northumber NCT03214237 | Northumbria Healthcare NHS Foundation Trust | — |
| Completed | The Long-term Effect on Oral Health Using a Powered Toothbrush in Individuals With Mild Cognitive Impairment NCT05939050 | Blekinge Institute of Technology | N/A |
| Unknown | Evaluation of a Daily Oral Care Lozenge on Oral Health and Quality of Life in Older Adults NCT03693027 | Primal Therapies Inc. | N/A |
| Completed | Oral Health Promotion Strategy for Persons With Intellectual/Developmental Disabilities NCT03834064 | University of Louisville | N/A |
| Completed | Attitudes and Knowledge of Oral Health Among Nursing Personnel NCT03376022 | Dalarna County Council, Sweden | — |
| Unknown | Supervised Brushing Programme for Intellectual Disabled Students NCT03234231 | MD Equation | N/A |
| Completed | Oral Health Needs Assessment of Sjogren s Syndrome and Salivary Gland Dysfunction Cohorts and Healthy Voluntee NCT03327870 | National Institute of Dental and Craniofacial Research (NIDCR) | — |
| Unknown | Is There an Interaction Between Recurrent Miscarriage and Dental Health NCT03577314 | Recep Tayyip Erdogan University Training and Research Hospital | — |
| Recruiting | Caries-Obesity Prevention in Children by Modifying Risk Behaviors Among Parents With Immigrant Background-COP NCT05758454 | Oral Health Centre of Expertise in Western Norway | N/A |
| Completed | De-adoption of Oral Chlorhexidine Prophylaxis and Implementation of an Oral Care Bundle (CHORAL) NCT03382730 | University of Toronto | N/A |
| Completed | Comparison of Caries Arrested & Prevented Among SDF, NaF Varnish and Combination in Children NCT03480516 | Khon Kaen University | N/A |
| Active Not Recruiting | Improved Oral Health and Dental Care in Children with Congenital Heart Disease NCT03329170 | My Blomqvist | N/A |
| Completed | The Effect of Oral Antiseptic Gargles on the Oral Cavity Microbiome NCT03141554 | Mundipharma Manufacturing Pte Ltd. | Phase 4 |
| Terminated | Oral Health and Its Relation to Development and Well-being of Schoolchildren Before and After Restorative Trea NCT02754466 | University of Brasilia | N/A |
| Completed | A Model-based Health Education Program to Improve Oral Health in School Going Children NCT05112224 | Baqiyatallah Medical Sciences University | N/A |
| Unknown | Shared Oral Care - Improving Oral Care in Institutionalized Elderly in Aalborg Municipality NCT03407339 | Aalborg University | N/A |
| Completed | Antimicrobial Effect of Different Pastes on Streptococcus Mutans in Children NCT03526315 | Jordan University of Science and Technology | N/A |
| Completed | Streptococcus Dentisani Colonization Capacity in a Split Mouth Model NCT03522363 | AB Biotics, SA | N/A |
| Unknown | Frequency of Self-performed Mechanical Control of Plaque NCT02684682 | Universidade Federal de Santa Maria | N/A |
| Completed | Quaternary Ammonium Methacryloxy Silicate-containing Acrylic Resin NCT02525458 | Frank Tay, BDSc (Hons), PhD | Phase 2 |
| Completed | Effect of Two Toothpastes on Bacteria in Saliva NCT03587428 | GlaxoSmithKline | N/A |
| Completed | A Randomized Cross-over Clinical Trial to Evaluate the Use of Oral Health-Related Quality of Life in Dental Pr NCT02108470 | University of Malaya | N/A |
| Completed | Oral Status and Care Needs of People Aged 90 and Over NCT04065828 | University Hospital, Bordeaux | — |
| Completed | Study of Variation Over Time in the Oral Microbiome NCT02049398 | National Cancer Institute (NCI) | — |
| Unknown | Comparing Pain and Swelling After Surgical Extraction of Mandibular Third Molar in Dexamethasone Injection and NCT01896427 | Mohammad Javad Shirani | Phase 4 |
| Terminated | Self Reported Oral Health, Awareness and Attitude Towards Dental Care Among Pregnant Women NCT01675180 | University of Tromso | N/A |
| Completed | Bacterial Arrangement on the Teeth NCT01712672 | National Institute of Dental and Craniofacial Research (NIDCR) | — |
| Completed | L. Brevis CD2 Strain Persistence in Oral Cavity NCT01782079 | University of Roma La Sapienza | N/A |
| Unknown | Effect of an Oral Probiotic Tablet on Oral Bacteria and Clinical Measurements (ProBiora3) NCT01520974 | Oragenics, Inc. | N/A |
| Completed | Electric and Manual Toothbrushes in Nursing Homes NCT03298620 | University of Oslo | N/A |
| Completed | Effect of Probiotics Containing Yogurts on the Composition of Biofilms in Patients Under Orthodontic Treatment NCT01657539 | Federal University of Pelotas | Phase 2 / Phase 3 |
| Completed | Frequency of Oral Hygiene NCT01630837 | Universidade Federal de Santa Maria | N/A |
| Active Not Recruiting | The Use of Functional Confections in Promoting Oral Health NCT01514552 | Ohio State University | Phase 1 |
| Unknown | School Intervention Study of Nutrition, Wellbeing and Dental Health NCT00530153 | Finnish Institute for Health and Welfare | N/A |
| Completed | Evaluation of Salivary Flow and Buffer Capacity Associated to Aged People's Oral Health NCT00651248 | Academia Cearense de Odontologia | — |
| Completed | Clinical Study of Antibacterial Nanoparticles Incorporated in Composite Restorations NCT00299598 | Hadassah Medical Organization | — |
| Completed | Oral Health Education Program NCT00103493 | Temple University | Phase 3 |
| Unknown | Clinical Comparison of RPDs Retained by Conical and Galvanoformed Double Crowns. NCT00176215 | Heidelberg University | Phase 4 |