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Natural rubber, used by the Incan and Mayan cultures, was the first known elastomer. Charles Goodyear developed the process of vulcanization, [4] after which the use of natural rubber increased. Henry Albert Baker is the first person known to have used elastics to correct the position of teeth. In the late 1800s he named his elastic wear the ...
In 2022, a retrospective study conducted on 82 eyes with OOKP using original Strampelli technique, showed an anatomical survival of 94% up to 30 years of follow-up. The same study also reported a visual acuity better than 1.00 logMAR (or 20/200 Snellen) at 10 years in 81% of the eyes, and a visual acuity of 1.21 logMAR (or 20/324 Snellen) at 30 ...
Dental braces. Braces are usually placed on the front side of the teeth, but they may also be placed on the side facing the tongue (called lingual braces). Brackets made out of stainless steel or porcelain are bonded to the center of the teeth using an adhesive.
Maxillary expansion is indicated in cases with a difference in the width of the upper jaw to the lower jaw equal to or greater than 4 mm. Typically this is measured from the width of the outside of the first molars in the upper jaw compared to the lower jaw taking into account that the molars will often tip outward to compensate for the difference.
Opinion is that they are likely useful for moderate front-teeth crowding. In those with teeth that are too far forward or backward, or rotated in the socket, the aligners are likely not as effective as conventional braces. More cases of relapse of the anterior teeth have been found with clear aligners compared with conventional braces. [4]
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East Asian blepharoplasty, more commonly known as double eyelid surgery, is a cosmetic procedure that reshapes the skin around the eye to create a crease in an upper eyelid that naturally lacks one. Although 70-83% of East Asian women naturally have upper eyelid creases, it is estimated that 17-30% of Chinese and Japanese women lack this ...
Play one of the oldest board games in the world...Backgammon on Games.com! Remove all of your pieces from the board before your opponent.