Bone expansion in narrow ridge is tricky. In fact it was done at the site of #8 with width of ~ 6 mm (see Fig.5-8), where 4.5 mm implant was placed. There is not much bone on the either side (buccal or lingual). It appears that it was placed too buccal. That is why the buccal plate was perforated. Ideally there should be at least 1 mm bone on the either side of the implant placed. In the future, incision will be made before bone expansion. Osteotomes will be placed right in the middle or slightly toward lingual. The lingual plate is thicker and tougher.
IACs (Integrated Abutment Crowns - which means that they are interconnected, joined together)
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Xin Wei, DDS, PhD, MS 1st edition 09/10/2013, last revision 09/10/2013