The upper tooth that was biting against the missing lowertooth will drop downward, because there's nothing below it to hold it in place.
原来与这颗牙拔掉上下咬合的上排的牙齿，因为在它底下没有牙齿承住它，会变的往下突出。
2
This machine was fixed the upper and lowertooth for synchronized feeding units, it is most suitable for the paper bag and woven bag coated with plastic film.
本机械安装了上下机牙同步送料，最适用于涂塑料膜的编织袋及纸袋使用。
3
To see how the brain responds to pain emanating from different teeth, the researchers used fMRI to monitor changes in activity when the upper tooth or the lowertooth was zapped.