The average dose of X-ray scattering mounted to permanent teeth. Is less than a dental X-ray machine portable. Representing 81.0, 65.9, 70.0, and 61.1, respectively, in each position. The radiation scattering of X-ray dental portable with a limited beam length of 22 cm, a decrease when compared to the limited beam length of 12 cm, equivalent to 76.7, 78.5, 74.1 and 48.6 in each position. respectively The radiation scattering of x-ray machines, portable on the distance from the radiation source to the surface of the model's head at a distance of 12 cm less than the distance of 22 cm, equivalent to 1.2, 12.7, 18.3 and 26.7 in each rotation. sequence
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