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An Update on Demineralization/Remineralization
Clinical Application

Course Author(s): Mark E. Jensen, MS, DDS, PhD; Robert V. Faller, BS

Clinical Application

The Inspektor Pro QLF Camera system has been approved by the FDA and is available for dental professionals and research and educational institutes in several countries. The device was designed to be used in any clinical environment. The basic version brings QLF images and analysis to the dental practice. The research version supports the use of QLF for fundamental research and clinical trials.

QLF-D is a recent addition to the available QLF systems and is making the measurement of early caries even simpler. QLF-D works using the same principles as other QLF systems. However, the QLF-D system utilizes images taken using a high resolution camera, rather than the QLF handpiece used in the earlier Inspektor Pro system.

Some examples of the use of the handpiece to acquire images of the various surfaces:

Orientations of the QLF handpiece when taking an image of various surfaces:
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Lower-left
buccal
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Lower-front
buccal
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Lower-right
buccal
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Lower-right
occlusal

Some examples of QLF images:

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Occlusal view of the upper left 2nd molar with enamel breakdown in the central fossa.
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Sound fissures in the upper right 2nd bicuspid.
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Fissures of the upper right 2nd molar are covered by matured plaque obstructing a clear view.
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Red fluorescence inside a white spot lesion developed during orthodontic treatment (the QLF image was made after professional cleaning)
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Calculus at the proximal area.
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Matured plaque at the proximal area.
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Retention wires are a good retention site for plaque.
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Matured plaque along the gingival margin.
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