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Volume 7 Issue 7 (July, 2019)
Original Articles
Comparison of Intraoral and extraoral digital impressions - A clinical study | |
Sunil Dogra, Vishal Sharma, Trishika Dhiman, Bharti Dua | |
Background: An extraoral optical scanner can allow a fast and high-resolution data acquisition with the accuracy of 5–10μm, while the accuracy of intraoral scanning is stated to be 50μm. A direct intraoral scanning is truly free of a physical impression so that it is able to get rid of the errors derived from the distortion of elastomeric impressions, disproportionate water/powder ratio of dental plaster and unsuitable storage conditions of physical impressions or gypsum casts. Aim of the study: To compare Intraoral and extraoral digital impressions. Materials and methods: For the study, 10 dentulous patients with endodontically treated mandibular first molars with adjacent teeth present in the age range of 18-50 years were selected for the study. The tooth preparation was done according to the biomechanical principles. Results: We observed that mean deviation of measurements after from buccal lingual and mesio dimple was more accurate with intraoral scanner as compared to extraoral scanner. Conclusion: From the results of the present study, this can be concluded that intraoral and extraoral digital impression highly efficacious. Received: 18 April, 2019 Revised: 27 June 2019 Accepted: 28 June 2019 Corresponding author: Dr. Sunil Dogra, Senior Lecturer, Department of Prosthodontics, Institute of Dental Sciences, Sehora, Jammu, Jammu and Kashmir, India |
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