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While the 3.8x8.5 mm implants at #31 and 20 are placed lingual (L) to the Inferior Alveolar Canal (IAC, Fig.2,3) "free hand", can a 4x7.3 mm implant (Fig.4 blue outline) be placed buccally (B) at #19 with a guide?
Xin Wei, DDS, PhD, MS 1st edition 06/20/2018, last revision 06/20/2018