One of the biggest benefits of the lateral cephalometric x-ray is the advantage of “natural” head positioning. The lateral cephalometric x-ray uses a line known as the true vertical as an external reference point. Because the true vertical is generated by gravity and the head is in its normal positioning, a doctor or orthodontist can study the head as it would be positioned without any additional altering. This is why many refer to the lateral cephalometric x-ray as revealing the “natural” head positioning through the use of the true vertical.
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