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AHA News: Hospice Candidate at 2, She's Now 13 and Thriving
AHA News: The Head Is Connected to the Heart – and Can Influence Health
Anxiety, Depression and Drinking: An Unhealthy Combo During the Pandemic
Biden Will Ban Travelers From South Africa as New COVID Variants Spread
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HOME
HEALTH TOPICS
Common Health Topics
Blood Disorders
Bone, Joint, and Muscle Disorders
Brain, Spinal Cord, and Nerve Disorders
Cancer
Children's Health Issues
Digestive Disorders
Disorders of Nutrition
Drugs
Ear, Nose, and Throat Disorders
Eye Disorders
Fundamentals
Heart and Blood Vessel Disorders
Hormonal and Metabolic Disorders
Immune Disorders
Infections
Injuries and Poisoning
Kidney and Urinary Tract Disorders
Liver and Gallbladder Disorders
Lung and Airway Disorders
Men's Health Issues
Mental Health Disorders
Mouth and Dental Disorders
Older People’s Health Issues
Skin Disorders
Special Subjects
Women's Health Issues
Resources
Videos
Figures
Images
Quizzes
Common Medical Tests
View All Resources
SYMPTOMS
General
Abdomen & Digestive
Bleeding
Brain & Nervous System
Chest & Respiratory
Children's Symptoms
Eye
Genital & Urinary
ALL SYMPTOMS >
EMERGENCIES
Cardiac Arrest
Choking
ALL EMERGENCIES >
RESOURCES
Abbreviations
Audio
3D Models
Common Medical Tests
Figures
First Aid
Images
Infographics
Lab Test
Medical Terms
The One-Page Manual of Health
Pronunciations
Quizzes
Self-Assessment Tools
Tables
Videos
Weights & Measures
NEWS
AHA News: Hospice Candidate at 2, She's Now 13 and Thriving
AHA News: The Head Is Connected to the Heart – and Can Influence Health
Anxiety, Depression and Drinking: An Unhealthy Combo During the Pandemic
Biden Will Ban Travelers From South Africa as New COVID Variants Spread
View All News >
View All News >
ABOUT
Overview
History
Editors and the Editorial Process
Publishing and Production Staff
Editorial Board
Contributors
Reviewers
Content Providers
Global Medical Knowledge
FAQ
Contact Us
Courtesy of
about MSD
MSD careers
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Quick Facts: Mouth and Dental Disorders
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Periodontal Diseases
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Periodontal Diseases
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Gingivitis
What is gingivitis?
What causes gingivitis?
What are the symptoms of gingivitis?
How do dentists treat gingivitis?
How can I prevent gingivitis?
Periodontitis
What is periodontitis?
What causes periodontitis?
What are the symptoms of periodontitis?
What will happen at my dental appointment?
How do dentists treat periodontitis?