Journal article

Publication year: 2020

Journal: International Journal of Environmental Research and Public Health

Volume number: 17

Issue number: 13

eISSN: 1660-4601

Open access status: Gold

DOI Link: https://doi.org/10.3390/ijerph17134725

Publisher: MDPI

Abstract: 
Due to the high prevalence of periodontitis, dentists have to face a larger group of patients with periodontally compromised dentitions (PCDs) characterized by pathologic tooth migration and malocclusion. Impression taking in these patients is challenging due to several undercuts and extensive interdental areas (IAs). The aim of this clinical trial was to analyze the ability of analog and digital impression techniques to display the IAs in PCDs. The upper and the lower jaws of 30 patients (n= 60, age: 48-87 years) were investigated with one conventional impression (CVI) using polyvinyl siloxane and four digital impressions with intraoral scanners (IOSs), namely True Definition (TRU), Primescan (PRI), CS 3600 (CAR), and TRIOS 3 (TIO). The gypsum models of the CVIs were digitalized using a laboratory scanner. Subsequently, the percentage of the displayed IAs in relation to the absolute IAs was calculated for the five impression techniques in a three-dimensional measuring software. Significant differences were observed among the impression techniques (except between PRI and CAR,p-value < 0.05). TRU displayed the highest percentage of IAs, followed by PRI, CAR, TIO, and CVI. The results indicated that the IOSs are superior to CVI regarding the ability to display the IAs in PCDs.

Harvard Citation style: Schlenz, M., Schubert, V., Schmidt, A., Woestmann, B., Ruf, S. and Klaus, K. (2020) Digital versus Conventional Impression Taking Focusing on Interdental Areas: A Clinical Trial, International Journal of Environmental Research and Public Health, 17(13), Article 4725. https://doi.org/10.3390/ijerph17134725

APA Citation style: Schlenz, M., Schubert, V., Schmidt, A., Woestmann, B., Ruf, S., & Klaus, K. (2020). Digital versus Conventional Impression Taking Focusing on Interdental Areas: A Clinical Trial. International Journal of Environmental Research and Public Health. 17(13), Article 4725. https://doi.org/10.3390/ijerph17134725