Validity and Reproducibility of Digital Models Obtained by Cone Beam Computed Tomography Imaging
Journal Title: Journal of Clinical and Diagnostic Research - Year 2018, Vol 12, Issue 9
Abstract
ABSTRACT Introduction: Impression making and fabrication of plaster models serve as a basis for documentation, diagnosis and treatment planning. Model analysis is used routinely in orthodontics and is a key factor for treatment planning and review of orthodontic progress. Recently newer technologies in imaging and digitalisation have made it possible to obtain 3-Dimensional (3D) virtual models. Virtual models score over plaster models with respect to accessibility, storage and long life. However, there are concerns over its accuracy and reproducibility. Aim: To evaluate the accuracy of three dimensional digital models obtained from Cone Beam Computed Tomography (CBCT). Materials and Methods: This was an ex-vivo study. Thirty dental models of patients were selected and scanning of these models were done using CBCT. Means and standard deviations of the space analysis measurements were calculated by using both plaster and digital models. Statistical analyses were used to investigate the accuracy and repeatability of the methods studied using Statistical Package of Social Sciences (SPSS) 20.0. Paired t-tests for both mean and standard errors were calculated. Results: The results for all 30 maxillary and mandibular models were similar. There was a statistically significant difference in calculating sum of ten teeth for both maxillary and mandibular teeth between the plaster and dental digital models and in mesio distal measurements between digital and plaster dental models. Conclusion: Digital models provide a more accurate measurement of mesio distal width of tooth with a statistically significant difference of (p-value=0.002).
Authors and Affiliations
Apurva Bariar, Fidha Nazeer, Nidhin Philip, Siddarth Shetty
Keywords
Related Articles
- EP ID EP524704
- DOI 10.7860/JCDR/2018/35616.12015
- Views 68
- Downloads 0
Cervical Pregnancy Masquerading as an Incomplete Abortion- A Learning Lesson
Cervical pregnancy is a rare site of ectopic pregnancy compared to tubal. The trophoblast implant into the cervical tissue and become a potentially dangerous site of torrential haemorrhage. The widespread use of Ultrason...
Tracking of Fascicles of Sartorius and Pectineus Nerves-A Key to Neurosurgery
ABSTRACT Introduction: Sartorius and pectineus are muscles of thigh innervated by Nerve to Sartorius (NS) and Nerve to Pectineus (NP) respectively. If pectineus and sartorius muscles are paralysed or weakened due to inju...
Thyrolingual Trunk Arising from Common Carotid Artery- A Case Report
Superior Thyroid Artery (STA) usually arises from the ventral surface of the External Carotid Artery (ECA) just below the level of tip of greater cornu of hyoid bone and it runs anteriorly, downwards and medially. Lingua...
Mutation Analysis of Beta-thalassaemia in 30 Families of India: A Report
ABSTRACT Introduction: The β-thalassaemia is one of the haemoglobinopathies related to genetic disorders. It occurs due to mutation in β-gene of autosome 11. In India, it affects 1-7% of couples annually. Reports are ava...
Dengue Vaccines: Current Status and Future Prospects
Editorial