PMC4643474_01
CT show the crestal bone height between sinus floor and alveolar ridge of first molar was only 2.37 mm. The cyst (18.72 mm x 24.61 mm) was firmly attached to the sinus lateral and medial wall.
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PMC4643474_01_gr1.jpg
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Meanwhile, there was a globous shadow (18.72 mm x 24.61 mm) in the sinus but it did not obstruct the osteomeatal complex (Fig. 1).
CT show the crestal bone height between sinus floor and alveolar ridge of first molar was elevated to 11.31 mm. The cyst (25.64 mm x 20.42 mm) was complete and supported by the window wall and allograft. The sinus lumen was isolated from the grafted sub-sinus space.
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PMC4643474_01_gr2.jpg
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The cyst (25.64 mm x 20.42 mm) was complete and supported by the widow and allograft (Fig. 2).
CT showed the crestal bone height between sinus floor and alveolar ridge of first molar was 10.08 mm. The cyst significantly decreased in size and osseointegration was achieved.
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PMC4643474_01_gr3.jpg
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The scan showed that the ridge height of the first molar (Missing) was 10.08 mm, osseointegration was achieved and the cyst decreased in size (Fig. 3).