Accuracy of flapless immediate implant placement in anterior maxilla using computer‐assisted versus freehand surgery: A cadaver study

• DOI: 10.1111/clr.13382
• Publication Date: 2018-10-22T15:28:30Z
• Authors: Zhaozhao Chen; Junying Li; Khaled Sinjab; Gustavo Mendonca; Haiyang Yu; Hom‐Lay Wang
• Keywords: Anterior maxilla

Abstract Objective To compare the accuracy of computer‐guided surgery and freehand on flapless immediate implant placement (IIP) in anterior maxilla. Material Methods In this split‐mouth design, 24 maxillary incisors eight human cadaver heads were randomly divided into two groups: ( n = 12) 12). Preoperatively, cone‐beam computed tomography (CBCT) scans acquired, all implants planned with a software (Blue Sky Plan3). Then, types surgeries performed. assess any differences position, postoperative CBCT was subsequently matched preoperative planning. For implants, angular, global, depth, bucco‐lingual, mesio‐distal deviations between virtual actual positions measured. Results A significant lower mean angular deviation (3.11 ± 1.55°, range: 0.66–4.95, p 0.002) global at both coronal (0.85 0.38 mm, 0.42–1.51, 0.004) apical levels (0.93 0.34 0.64–1.72, < 0.001) observed guided group when compared to (6.78 3.31°, 3.08–14.98; 1.43 0.49 0.65–2.31, 2.2 0.79 1.01–4.02). However, these approaches similar for depth 0.366). buccal direction, groups showed general tendency be positioned facially, occurring more group. Conclusion IIP, superior than transferring position from even help guide, final fixture tends shift toward facial direction.