Intraoral scan – does the operator’s experience influence the STL and DICOM files overlay’s precision?

Vol. 13 – Number 50 – 2022 IMPLANT DENTISTRY NOTEBOOK Original article Page 68-71 Intraoral scan – does the operator’s experience influence the STL and DICOM files overlay’s precision? Victória Alberton¹ Simone Alberton² Danilo Ciotti¹ Gabriela Scortegagna¹ Jessica Martins¹ Cristina Rech¹ Abstract Even though the digital file’s overlapping, such as tomography and the intraoral scan, recently been proving itself as a reliable procedure, once dealing with different files this reliability might be compromised, influencing periodontal surgery guide’s precision, also known as Perioguide®. This paper’s main objective is to assess if the operator’s experience in intraoral experiments influences the precision in overlaying images between STL and DICOM files. In the following paper, a skull with jaw holding 15 dental elements and artificial Gingifast RigidZhermack® confected gums were used. The jaw and skull scans used to accomplish this study (n=20) were accomplished by the usage of a TRIOS® 3-3SHAPE® by two groups: G1- an experienced professional (N=10) and G2- inexperienced professionals (N=10). These scans were overlaid by a digital tomography and measurements were taken out of three specific teeth by using an Implant Studio® Configured digital ruler. Levene’s Test was employed to evaluate the equality and the variability among the results and, according to those, the conclusion was homoscedastic (p=0,146138076). Through the operation of unidirectional ANOVA and Turkey’s post hoc HSD, it was possible to analyze the differences between the test subject’s (G1 and G2) results. The significance level was configured to 5%. Through these results and based on this paper, it may be inferred that the operator’s experience in intraoral scans did not influence the STL and DICOM files overlapping images measurement’s precision. The inexperienced operators obtained significantly similar results in comparison to experienced ones. Descriptors: Tomography, computer-aided design, Periodontics. ¹ Periodontics – SL Mandic. ² Dentistry – CEOM. DOI: 10.24077/2022;13502419220