Delayed Eruption. The teeth of people with Down syndrome, both baby teeth and permanent teeth, may come in late compared to children without Down syndrome. On average, babies with Down syndrome get their first teeth at 12 to 14 months, but it may be as late as 24 months of age.t is also common that the front teeth of people with Down syndrome do not touch. Orthodontics (braces) may be able to improve some of these issues. Orthodontics require a lot of cooperation and make the teeth even more difficult to keep clean, so it may not be possible in all people.
Q: When we flush the toilet and the water fills up the tank, it makes a hissing noise; it also takes a long time for the water to fill up the tank. This is totally different from our other bathroomâs toilet, which works fine.
  Answer     If your cat is hissing at strangers you can't stop your cat from hissing at them. The   only thing I can think of that would stop a cat from hiss â¦ ing at someone is letting a cat get to know a person long enough that the cat isn't afraid of the person, and will therefore get along with him/her.hey could also hiss if they feel threatened by a human or another animal. Hissing is their way of showing their anger or their fright. Also, when cats are angry, their fur stands up. This happens normally in the tail but if they are really scared/angry they will arch their backs and all of their fur will stand up.