Comparing circular cortical‐lamina anchoring versus split‐crest technique in posterior mandible: A retrospective cohort study

This study compared two methods to widen the bone at the back of the lower jaw: circular cortical-lamina anchoring (CCA) and modified split-crest technique (MSC). We checked 39 patients who underwent these procedures from 2018 to 2023 and measured the width of the bones and the changes in soft tissue after the operations. Initially, the size of the jawbones was similar. After the operations, both groups had wider jawbones and the bones in the CCA group showed more growth (4.25 mm on average) than the bones in the MSC group (2.97 mm on average). The best results were seen at 3 mm below the top of the jawbone. Therefore, both methods can make the jawbone wider, but the CCA method seems to be better suited for growing more bone. The CCA could be a good alternative to the MSC for patients who require widening of their jawbone for implantation.