Space maintainer-- An orthodontic appliance that is worn to prevent adjacent teeth from moving into the space left by an unerupted or prematurely lost tooth.
If a tooth has not yet erupted or is prematurely lost, the orthodontist may insert an appliance called a space maintainer to keep the other teeth from moving out of their natural position.
try D1520 -Space Maintainer-Removable-Unilateral
try D1520 -Space Maintainer-Removable-Unilateral
how long do humans float in space for
one year
People can stay in space as long as they have plenty of oxygen, food and water!
2.4 hours
Around a week
A comet will stay in space until its orbit brings its withing the gravity well of another body.
It takes around 5-7 years for someone to become an astronaut. And this is after they already have college degrees and engineering or science experience.
if its in orbit, then it will stay up there forever unless something hits it close enough to the Earth for it to fall.