Fig.3: The extraction socket of the tooth #13 is ovoid, longer buccolingually (between arrowheads) than mesiodistally. In other word, the socket is D-shaped.  A Clindamycin-saturated gauze is placed in the socket to prevent postop infection.  Packing the gauze has a haemostatic effect.

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Xin Wei, DDS, PhD, MS 1st edition 04/23/2014, last revision 01/19/2018