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To achieve parallelism between the receptor and the long axis of the tooth when using the paralleling technique for image exposure, the ________ distance must be increased. 

When taking a premolar bite-wing image, in order to ensure that all areas of the receptor are exposed to x-rays, what must the mesial part of the PID cover?

Overlapped interproximal contacts are caused by improper vertical angulation.  To prevent overlapped contacts the vertical angulation should be adjusted to +10 degrees.

Maxillary anterior teeth have larger crowns and longer roots than mandibular anterior teeth.  Most mandibular molars have 3 roots, whereas most maxillary molars have two roots.

The NOMAD Pro shielding design limits exposure and permits others to be in the exam room during operation without any precautions. The NOMAD Pro should be held with two hands and with elbows elbows close to the body for stability during operation. 

argued that Congress needed to protect the right of slave owners to take their “property” into the territories, was Jackson’s VP, thought South Carolina had the right to secede over states’ rights, issues like the Tariff of Abominations

turned Pres. Lincoln down to serve as the commander of the Union Army, resigned from the Union Army, to serve his state of Virginia, that would seceded from the Union, as a general in the Army of Northern Virginia

lost Congress to the “Little Giant”, but won the presidency in 1860, but the South seceded because of his winning the election

senator from Massachusetts, a leading Radical Republican, was caned in the Senate

The South emerged from the Civil War with a strong, diversified economy.