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When the tooth is extracted, the apical buccal plate is found to be defective centered by the fistula (Fig.3, apparently concave buccal surface). PRF is necessary for the repair of the bony defect. Blood drawing fails, probably due to small veins associated with the skinny lady. When an osteotomy is being created palatally, the palatal bone feels vibratory and thinner. The osteotomy is then re-created more buccally (Fig.4: 2.7 mm drill in place).
Xin Wei, DDS, PhD, MS 1st edition 04/20/2016, last revision 09/19/2018