Cone-Beam Computed Tomography as a Diagnostic Method for Determination of Gingival Thickness and Distance between Gingival Margin and Bone Crest

Figure 1

(a) Tomographic guide showing the marks made at the tip of each interproximal papilla and 3.0 mm above the gingival margin of each tooth. (b) Clinical guide following the contours of the gingival margin and the tips of the interproximal papillae. (c) Positioning the clinical guide to measure gingival thickness (GT) using ultrasound (US). (d) Positioning the US to measure GT. (e) Marking the point to measure GT. (f) Silicon limiter in contact with the external surface of the gum to measure GT. (g) Measuring the distance between the gingival margin and the vestibular bone crest (GMBC-V) at the highest point from the clinical guide margin to the vestibular bone crest. (h) Measuring the distance between the gingival margin and the interproximal bone crest (GMBC-I) from the point in the clinical guide which represents the tip of the interproximal papilla to the interproximal bone crest. (i) Patient’s gummy smile. (j) Patient’s smile after surgery.

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