A small cavity in the early stage means the tooth has just started to decay, and this is the best time to treat it before it becomes deeper or painful. At this stage, you may not feel much discomfort, but the decay can slowly spread if left untreated. Early care can often stop the problem from getting worse and help preserve your natural tooth. The appropriate treatment depends on how early the cavity is detected. If it is very superficial, your dentist may suggest applying fluoride or remineralisation to strengthen the tooth and prevent further damage. If a small hole has already formed, a simple filling is usually used to remove decay and restore the tooth. These treatments are quick, safe, and help prevent the need for more complex procedures later. You can also protect your teeth by maintaining good oral hygiene. Brush twice daily with fluoride toothpaste, reduce sugary foods, and rinse your mouth after meals. Avoid delaying treatment, as early cavities are easier and less costly to manage. A dental check-up can confirm the stage and help you choose the right option.

Pain in a back tooth with a cavity is usually due to decay that has reached deeper and irritated the nerve. Try to avoid chewing on that side and stick to soft, lukewarm foods so the tooth is not triggered. Rinse your mouth with warm salt water after meals to keep the area clean. Gently brush around the tooth to prevent food from getting stuck, and avoid very sweet, cold, or hot items as they can worsen the pain. You can place a cold pack on the cheek to reduce discomfort if needed. If the pain becomes constant or severe, or if there is swelling, it may be worsening. Consult a doctor soon to treat the cavity and relieve the pain properly.