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Figure 6.7a. Preoperative CT scan in cross-sectional<br />

view showing a narrow bucco-lingual alveolar ridge.<br />

Insuffi cient width to place implants.<br />

Figure 6.7b. Clinical photograph showing the osteotomy<br />

at the crest of the ridge, lateral, and apical borders<br />

of the intended ridge expansion.<br />

122<br />

Figure 6.7c. Bone spread apart to allow the placement<br />

of bone.<br />

Figure 6.7d. Bone allograft inserted into the trough<br />

created when the buccal and lingual plates of bone have<br />

been displaced.<br />

Figure 6.7e. Re-entry into the area and note the increase<br />

in width so that 4 mm wide implants could be installed.

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