Overview

Tooth sensitivity (dentinal hypersensitivity) affects up to 1 in 3 adults and is among the most common dental complaints. It causes sharp, sudden pain when teeth are exposed to cold, heat, sweet foods, or air. The pain occurs when dentine — the layer beneath enamel — becomes exposed, allowing stimuli to reach the nerve. It ranges from mild discomfort to severe pain disrupting eating and daily life.

Symptoms

• Sharp sudden pain from cold drinks, ice cream, hot beverages, or sweet foods
• Pain from cold air — common in Kuwait's air-conditioned environments
• Discomfort when brushing or flossing near the gum line
• Pain lasting seconds rather than lingering (distinguishes sensitivity from pulpitis)

Causes & Risk Factors

• Enamel erosion from acidic foods and carbonated drinks
• Gum recession exposing root dentine
• Brushing too hard or with a hard-bristled toothbrush
• Tooth grinding (bruxism) wearing down enamel
• Cracked teeth or leaking fillings; gum disease

Complications

• Avoidance of certain foods impacting nutrition
• Untreated erosion or gum recession worsening over time
• If caused by crack or decay: may progress to pulpitis or abscess

Diagnosis

Dentist examines teeth, assesses gum levels, and may take X-rays to identify the cause. It is important to distinguish sensitivity from toothache caused by decay or a cracked tooth, as these require different treatment.

Treatment

• Desensitising toothpaste: blocks tubules to reduce pain over time
• Fluoride varnish applied in clinic: strengthens enamel
• Dental bonding or composite resin: seals exposed root surfaces
• Gum grafting if significant gum recession is the cause
• Address underlying cause: treat decay, replace worn fillings, manage bruxism

Prevention

• Use a soft-bristled toothbrush and brush gently in circular motions
• Use fluoride sensitive toothpaste daily
• Limit acidic foods and drinks; rinse with water afterwards
• Wear a night guard if you grind your teeth
• Regular dental check-ups to catch erosion and recession early

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