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In its early stage, called gingivitis, the gums become swollen and red and may bleed. [5] It is considered the main cause of tooth loss for adults worldwide. [7] [8] In its more serious form, called periodontitis, the gums can pull away from the tooth, bone can be lost, and the teeth may loosen or fall out. [5] Halitosis (bad breath) may also ...
Oral cancer, also known as oral cavity cancer, tongue cancer or mouth cancer, is a cancer of the lining of the lips, mouth, or upper throat. [6] In the mouth, it most commonly starts as a painless red or white patch, that thickens, gets ulcerated and continues to grow.
[1] [2] Without treatment, decreased red blood cells, gum disease, changes to hair, and bleeding from the skin may occur. [1] [3] As scurvy worsens, there can be poor wound healing, personality changes, and finally death from infection or bleeding. [2] It takes at least a month of little to no vitamin C in the diet before symptoms occur.
Infant death refers to the death of a child before their first birthday or within 12 months of life. Some of the main causes include premature birth, SIDS, low birth weight, malnutrition and infectious diseases. And lastly, the under-5 mortality rate refers to children who die under the age of 5 years old or within the first 5 years of life. [10]
A large study followed children born between 22 and 25 weeks until the age of 6 years old. Of these children, 46% had moderate to severe disabilities such as cerebral palsy, vision or hearing loss and learning disabilities, 34% had mild disabilities, and 20% had no disabilities; 12% had disabling cerebral palsy. [ 192 ]
Most chicks lose their egg teeth within a few days of hatching, [10] (p178) although petrels keep theirs for nearly three weeks [5] (p428) and marbled murrelets have theirs for up to a month. [74] Generally, the egg tooth drops off, though in songbirds it is resorbed.
For P. robustus, he reported newborn brain size of 175 cc and weight of 1.9 kg (4.2 lb), gestation 7.6 months, weaning after 30.1 months of age, maturation age 9.7 years, breeding age 11.4 years, birth interval 45 months, and lifespan 43.3 years. These roughly aligned with other australopithecines and chimps.
After Smilodon reached 23 to 30 months of age, the infant teeth were shed while the adult canines grew at an average growth rate of 7 mm (0.28 in) per month during a 12-month period. They reached their full size at around 3 years of age, later than modern species of big cats.