Vaidya Aayushi K, Ronad Sunil, Gandhewar Mahesh A, Nagaral Suresh M, Girija Dodamani, Yogita Zope

ABSTRACT

Background: Radiographic assessment is crucial for treatment planning and during intraoperative procedures in implant dentistry. A wide array of modern imaging tools is available. However, they pose a concern about their affordability, availability and radiation exposure. Radiovisiography yields a high-resolution planar image of a localized region. But Radiovisiography software grids fail to consider errors due to projection geometry. In this study accuracy of Intraoral Periapical grid film overlying RadioVisiography sensor is estimated by comparing with Cone Beam Computed Tomography. Material and Method: Group A comprised of Intraoral Periapical radiographs obtained by superimposing Radiovisiography sensors with grid film. Cone Beam Computed Tomography images of the same region formed Group B. Two reference points were considered for both groups: 1) Incisal/cuspal/occlusal and 2) apical. Liner distance was measured between them. Values obtained were tabulated and analyzed using SPSS ¬¬¬¬¬¬¬¬¬software. Results: Total 56 maxillary and mandibular samples were assessed. They were divided into anterior and posterior region. For correlation between grids and Cone Beam Computed Tomography P value of significance was calculated to be p<0.001 for both arches showing high statistically significant correlation between both radiographic methods in determining vertical linear measurements irrespective of anterior or posterior region. Grids overestimate the measurements compared to Cone Beam Computed Tomography by an average of 1.50mm. Grids showed greater average magnification for maxillary arch and anterior region. Conclusion: Grid film overlying Radiovisiography sensor can be effectively used to measure linear dimensions with minimal deviation in case of unavailability of modern diagnostics aids in ideal implant cases.