How to Cite: Solanki, K. J., Fulsundar, P., Heganna, M., Nair, A., Sabane, A., & Sawant, H. (2022). Comparative evaluation of the virtual planned position and actual position of implant in mandibular posterior region using a DIOnavi system: An in-vivo study. International Journal of Health Sciences, 6(S5), 2197–2209. https://doi.org/10.53730/ijhs.v6nS5.9127 International Journal of Health Sciences ISSN 2550-6978 E-ISSN 2550-696X © 2022. Manuscript submitted: 18 Feb 2022, Manuscript revised: 27 April 2022, Accepted for publication: 9 June 2022 2197 Comparative evaluation of the virtual planned position and actual position of implant in mandibular posterior region using a DIOnavi system: An in-vivo study Dr. Kanchan Jetharam Solanki Postgraduate Student, Department of Prosthodotics and Crown and Bridge, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India Dr. Prathamesh Fulsundar Postgraduate Student, Department of Prosthodontics and Crown and Bridge, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India Dr. Mrunal Heganna Postgraduate Student, Department of Prosthodotics and Crown and Bridge, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India Dr. Athira Nair Postgraduate Student, Department of Prosthodotics and Crown and Bridge, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India Dr. Ajay Sabane MDS Prosthodontics, HOD, Department of Prosthodontics and Crown and Bridge, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India Corresponding author email: ajay221000@gmail.com Dr. Harshvardhan Sawant MDS Prosthodontics, Junior Lecturer, Department of Prosthodontics and Crown and Bridge, Bharati Vidyapeeth Dental College and Hospital, Pune, Maharashtra, India Abstract---Statement of problem: Implant placement in the mandibular posterior regions is often challenging because of limited space and insufficient accessibility. Purpose: The purpose of this clinical study was to investigate the accuracy of computer-guided surgery with a long drill key to place implants in the mandibular posterior regions. Material and methods: Computer-guided implant surgery was performed for 15 participants requiring implants in mandibular posterior region. This procedure involved using 6mm long