Conversation: The conversation between human and AI assistant.
[|Human|] I have recently had a routine dentist check. He could see no issues but took an xray anyway. He then said i needed 4 fillings!? He pointed out four really faint dark spots under the tooth. he called them blood spots. Please could you explain why i need fillings from this, when from the naked eye he said there was nothing wrong?
[|AI|]  Hello and welcome to Chat Doctor forum, I would like to inform you that a dentist prescribes a filling for the tooth as a preventive measure for future tooth problems. X-rays are taken to assure if decay is present if not visible to naked eye or even if present how deep is it. We usually advise our patients to get a filling done when it is first detected as decay spreads very quickly...getting the tooth filled is our patients will. I will advise you to have regular follow-ups with your dentist and trust them in their treatment. I wish you Good healthcare care