To prove the effectiveness of community policing, proponents point to testimonials from police chiefs and mayors from various communities. 1  Many chiefs of police and mayors credit community policing with lowering crime rates.
20 baby teeth: A child will normally have 20 baby (deciduous) teeth. These usually start to come into the mouth (erupt) when the child is around 6 months. The last baby teeth erupt around 2 years old. The baby teeth start to come out when permanent teeth start coming in. This usually starts around 6 years old and child will loose 8 front teeth. Around 10-12 years old, back 12 teeth come out. Ages can vary.
By the time a child is 3 years old, he or she has a set of 20 deciduous teeth, 10 in the lower and 10 in the upper jaw. Each jaw has four incisors, two canines, and four molars. The molars' purpose is to grind food, and the incisors and canine teeth are used to bite into and tear food. The primary teeth help the permanent teeth erupt in their normal positions; most of the permanent teeth form close to the roots of the primary teeth.