Medicina v Kuzbasse (Feb 2023)
COMPARATIVE CHARACTERISTICS OF THE DEPTH OF PENETRATION OF SILICONE IMPRESSION MATERIALS INTO THE DENTAL GROOVE DEPENDING ON THE RECEIPT OF THE IMPRESSION (IN THE EXPERIMENT)
Abstract
Determination of impression material penetration depth into the "dental groove", when obtaining impressions by different methods and materials. The aim of the research – carry out a comparative analysis of the penetration depth of silicone impression materials into the "dental groove" when taking impressions using various methods on an experimental model. Materials and methods. From the prepared tooth for a combined crown, impressions obtained by the following methods: one-stage two-phase, two-stage two-phase, injection, using a film and the method proposed by us. To study the penetration depth of the material, measurements were taken with a micrometer at four points (vestibular, oral, medial and distal) on the impression, and the average value was estimated. A-silicones were used: Express putty soft, corrective light body (3M ESPE) and Elite HD+ Putty soft, corrective Elite HD+ light body (Zhermack). Results. Evaluation of the obtained results indicated that when using the technique proposed by us, the depth of penetration of the impression A-silicone corrective mass Express and Elite HD+ materials into the "dental groove" on the experimental model turned out to be the largest 1.9 mm and 2.0 mm, respectively, the other methods showed a smaller result: two-stage two-phase technique 1.8 mm and 1.7 mm, impression with film – 1.7 mm for both materials, laminar – 1.7 mm and 1.9 mm, and one-stage two-phase technique showed less compression of the material into the groove – 1.4 mm and 1.5 mm. Conclusions. The results of the study showed that the new method of obtaining an impression, proposed by us, demonstrates the greatest depth of penetration of corrective A-silicone materials compared to other methods.
