Document Type : Original Article
Authors
1
Assistant Lecturer, Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexand
2
Lecturer, Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
3
Assistant Lecturer, Department of Prosthodontics, Faculty of Dentistry, Pharos University of Alexandria, Alexandria, Egypt.
4
Professor and Chairman, Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
5
Professor, Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Abstract
ABSTRACT
Introduction: The utilization of advanced technologies into the day by day practice in dental implantology is developing quickly. The development of the recent digital technologies for implant treatment such as the CBCT (Cone Beam Computed Tomography), 3D implant planning software and CAD/CAM (computer-aided design/computed-assisted manufacturing) has enabled a full digital prosthetically driven approach.
Objectives: The study aimed to clinically evaluate the accuracy of a full digital workflow for constructing a prefabricated immediate restoration for a single tooth implant.
Materials and Methods: Fifteen immediately-loaded dental implants were place to restore a missing mandibular first molar. For each implant, a prefabricated restoration was designed based on the virtual implant planning. A fully guided surgical template was used to place the dental implant and the prefabricated acrylic restoration was delivered. Linear and angular deviations between the inserted and planned restorations were measured using 3D analysis software at occlusal and hex levels.
Results: The mean linear deviations (in mm) at the occlusal level were 0.17, 0.17, 0.45 in the buccolingual, mesiodistal, and occlusogingival directions respectively while at the hex level the linear deviations were 0.22, 0.31, 0.46 respectively. The mean horizontal and vertical angular deviations (in degrees) were 2.78 and 2.66 respectively.
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