A 7-month-old baby hasn't grown teeth yet.

Patient's question:

Does a baby not having teeth yet count as delayed teething? What kind of assistance matters: A 9-month-old baby hasn't got any teeth yet—does that count as delayed teething? Could it be due to calcium deficiency? If you want to check for trace elements, can it be done at any general hospital? How much does it cost approximately?

Doctor's answer:

According to most trial reports, girls tend to get their teeth earlier than boys. In addition to the hereditary factors passed down through generations, the postnatal environment may also indirectly cause delayed teething. Take premature babies as an example; their teething time must be adjusted by subtracting the time they were born prematurely, so that the conclusion is more accurate. For instance, a premature baby born at 30 weeks of gestation will have their first tooth appear 10 weeks later (usually between 6 to 8 months after birth).

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