| | Dental Health | Babies Teething Can a nine year old lose K9 tooth? No, a nine-year-old should not lose any K9 teeth as they usually emerge between the ages of 11 and 13. Babies Teething - Related Articles What is a premutation? Which is odd man out between plague malaria measles AIDS cold? Tools of an Optometrist What are giveaways that I have Shingles symptoms? What is mild systemic disease? Estrogen Hormone Side Effects Can a 10 year boy start puberty?