A comprehensive literature review was conducted using the OSU digital library, PubMed, and Embase databases. The search focused on studies published within the last ten years, emphasizing the relationship between scan body features and scan accuracy. Specific search terms included "scan body features," "scan body height," "scan body diameter," "scan body material," and "scan accuracy." Articles were selected based on their relevance, study design, and the robustness of their data in evaluating the impact of these factors on digital impression accuracy. 

Results:

• The body geometry should have less sharp line angles and a cylindrical shape.

• Surface of the scan body should be dried before scanning because the water can lead to errors in measuring the height of surfaces.

• The use of different dental materials gives rise to height differences in the scans but are within an acceptable range for the clinically relevant procedures.

• Noise on the materials is also within an acceptable range for clinically relevant procedures and can be decreased by holding the camera as close to perpendicular to the sample as possible, rather than at a 45° angle.

• Titanium scan bodies had lower displacement than PEEK scan bodies.

• Implant angulation or divergence of 18 degrees did not significantly affect the accuracy of the intraoral scans.

• The supramucosal