Pain From No Strain
(Page 2 of 2)
September/October 1988
Mother Earth News staff
Correcting Baby Bites
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Orthodontists are now treating children with potential bite problems before their permanent teeth erupt—or even by their first birthday—and the results are good.
"Early treatment while the permanent teeth are still forming in the jaw can encourage normal growth and development. It's easier than making changes when the child is older," says Tufts University orthodontist Marcel Korn.
In the first phase, the youngster wears a banded wire or an acrylic functional appliance (toddlers start with a fixed device such as a bridge or crown). The second phase is a short fine-tuning stint in braces after the permanent teeth begin to erupt. Dental visits are less frequent than with later orthodontia—every two to four months instead of monthly—and briefer. .
A Safe Prenatal Test
A major government study now shows that chorionic villus sampling (CVS), a prenatal test which is done between the eighth and twelfth week of pregnancy, is as safe for the fetus as amniocentesis—which can't be done until the sixteenth week. This means that women in their older childbearing years will be able to get important prenatal diagnoses much earlier.
CVS involves suctioning, through the cervix, a few villi (fetal cells that eventually form the placenta) from the chorion, the outer membrane surrounding the embryo. To perform the procedure, doctors use an ultrasound-guided tube. Preliminary results can be available in a day or so. By contrast, it may take three or four weeks to get the results from amniocentesis.
CVS is already offered at 20 to 30 genetics testing centers across the country.
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