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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.
Key words: Digital impressions, dentulous patients, optical scanner.

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 
                                                                                 
This article may be cited as: Dogra S, Sharma V, Dhiman T, Dua B. Comparison of Intraoral and extraoral digital impressions - A clinical study. J Adv Med Dent Scie Res 2019;7(7): 119-122.

 
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