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A 25-year-old black man has poor dentition. The tooth #5 is non-salvageable (Fig.1,2). Although the 1st bicuspids belong to the posterior teeth, anterior sensor holders should be used to show the sinus floor (^). *: periapical radiolucency; preop oral antibiotic, intraop thorough socket debridement and antibiotic soaking are necessary steps to get rid of infection.
A long implant will be placed (possible 4.5x20 mm, Fig.2).
In PAs, the buccal (B) cusp is bigger than the lingual (L) one. The former looks farther from viewers than the latter. By the same token, the position of the roots can be determined.
Xin Wei, DDS, PhD, MS 1st edition 12/21/2014, last revision 01/19/2018