Evidence is growing that this âdigit ratioâ, especially when applied to the right hand, is a fundamental indicator of sexuality, aggression and Â­diseases suffered by men. 1  Pointing the finger: Scientists have noticed a relationship between finger measurements and a host of unrelated traits. This week, for example, strong evidence has emerged of a link between the â2D:4D finger ratioâ and a manâs likelihood of developing prostate cancer.
The palatal expander appliance is a specially made device used to widen the upper arch or roof of the mouth. By widening the upper arch, the upper teeth line up better with the lower teeth, giving the patient a better bite. Widening the palate makes room for crowded teeth to align better.
Once the expander is secured in the childâs mouth, it will slowly widen the upper jaw to prevent or treat malocclusions. It is an easy and tolerable process. It is most effective in children due to the gradual fusion of the two halves that make up the upper jaw. This makes the Rapid Palatal Expander more effective.