Evaluation and Comparison of Accuracy of Complete Arch Digital and Conventional Implant Impression as Influenced by the Use of a 3D Printed Modular Splint -An Study.

Aim: To investigate the accuracy of Complete Arch implant impression digitally and conventionally with and without using a 3D printed modular chain splint.

Methods: The STROBE (strengthening the reporting of observational studies in epidemiology) guidelines were use to conduct an analytical cross-sectional study. The total number of samples ( = 40) was derived and was divided into two groups with four subgroups: A1-Digital Impression without splinting of scan bodies (reference scan) and A2-Digital Impression splinted with 3D printed Modular Chain splint (test scan) and B1-Conventional Impression without Splinting of impression copings (reference scan) and B2- Conventional Impression splinted with 3D printed modular chain splint (test scan).