All are factors of gray hair turning yellow EXCEPT: 

A non oxidative toner, which contain no ____________________, requires no developer and is gentle on the scalp and hair. 

DIGITAL IMAGE P—Submentovertical Projection SinusesEvaluate the quality of this radiograph.

          What structure is indicated?

For a lateral cervical spine image: the midcoronal plane is positioned parallel with the IR the IPL is aligned perpendicular to the IR the long axis of the cervical vertebral column is aligned with the short axis of the collimated field a 72-inch (183-cm) SID is used  

For an AP ankle image, the: intermalleolar line is oriented at a 15- to 20-degree angle to the IR lateral malleolus is positioned more posterior than the medial malleolus long axis of the foot is positioned perpendicular to the IR central ray is centered midway between the malleoli  

_____________________ are used to equalize porosity. 

        What structure is indicated?

________________  ________________ equalize porosity and deposit color in one application to provide a uniform contributing pigment on pre- lightened hair. 

Gray hair can turn ____________ if the lightener is not processed long enough.