الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
Aim: This study was done to evaluate patient satisfaction and early implant failure of computer guided versus free hand immediate implant placement in fresh extraction sockets in esthetic zone.
Methodology: The sample of this study consisted of twenty patients randomly selected from outpatient clinic of prosthodontics, Endodontic and Oral Surgery departments, faculty of dentistry, Cairo University.
All patients were with teeth or remaining roots in the aesthetic zone (from right second premolar to left second premolar) and indicated for extraction and replacement with immediate implant. Preoperative CBCT was taken to ensure the presence of at least 3 mm of bone apical to root apex of the tooth to be extracted and the presence of sufficient labial bone to avoid labial plate fracture during extraction.
VII
For the test group, (computer guided group) the Preoperative CBCT was used for dental implants planning and formation of the surgical stent while for the control group (free hand group) it was used for implants size selection based on the specific tooth being replaced.
During the surgery immediate implant placement was performed using computer aided surgical guide for test group and free handed without any surgical guide for the control group. The patients were restored immediately with provisional crowns without any centric or eccentric contact.
For patient satisfaction assessment a validated questionnaire was used where each question of the questionnaire was scored by the patients on 10 cm visual analogue scales (VAS). First score was registered postoperatively 1 week following the surgery to allow for soft tissue healing around the provisional restoration. The second score was registered 1 week after final restoration insertion (at 6 months follow up).
Early implant failure assessment was performed in the interval between implant placement and definitive loading (0-6 months). Signs of implant failure were pain or implant mobility caused by bone loss and or infection.
Results: In this study it was found that there is no statistically significant difference in patient satisfaction and early implant failure between free hand and computer guided immediate implant placement in esthetic zone.
Conclusion: Within the limitations of this study, combining a computer aided surgical guide to an immediate implant placement in postextraction sites together with immediate temporization seems to be a safer and a predictable therapy especially for young practitioners and less experienced operators.