What Causes Black Triangles Between Teeth?
A black triangle is an open space below the contact between two teeth, and its appearance can reflect several features of the teeth, gums, and supporting bone.
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Simple explanations for bleeding, soreness, recession, and prevention.
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A black triangle is an open space below the contact between two teeth, and its appearance can reflect several features of the teeth, gums, and supporting bone.
Read guideBone loss on a dental X-ray describes reduced support around a tooth, but the image needs examination findings and earlier records for context.
Read guideMild bleeding can happen when you begin flossing, but regular or persistent bleeding deserves attention rather than being treated as normal.
Read guidePeriodontal maintenance is ongoing professional care after gum treatment, with visits and timing based on your gum health and clinical findings.
Read guideGum disease is a broad term that includes gum inflammation and conditions affecting the deeper tissues that support teeth.
Read guideLearn what periodontal probing records, why bleeding and attachment are noted, and why dental teams compare gum measurements over time.
Read guideA calm guide to evaluating claims that products or home remedies can regrow receding gums without diagnosing or selecting treatment.
Read guideGingivitis means inflammation of the gums, often related to plaque; learn what the term does and does not tell you and why a dental assessment matters.
Read guideWhat are gum pockets? Learn what dental teams measure, what the numbers can and cannot tell you, and when professional context matters.
Read guideGum recession means the gum edge has moved away from its earlier position, but its cause and significance require dental evaluation.
Read guidePlaque can collect where teeth meet the gums. Learn how gentle gumline brushing, daily between-teeth cleaning, and professional tartar removal fit together.
Read guideHealthy gums are usually comfortable and fit closely around the teeth, but appearance alone cannot confirm gum health.
Read guideBleeding when you brush is often linked to gum inflammation from plaque, but bleeding alone cannot identify the cause or diagnose gum disease.
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Guidance for children, parents, and family oral health routines.
Browse topicUnderstand pain, sensitivity, cavities, cracks, and changes in your teeth.
Browse topicWhat common dental recommendations mean and how to think them through.
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