Research Article

The Relation between Morphology of Maxillary Sinus after Augmentation in Three Classification Methods and Residual Bone Height: A Retrospective Study

Figure 4

Classification based on the sagittal plane. (a) Type A: tent type; (b) Type B: flat type; (c) Type C: one-sided dehiscence type; (d) Type D: two-sided dehiscence type.
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