Comparative Evaluation of the Dimensional Accuracy of Multiple Implant Impressions Using 3 Different Impression Materials Analyzed Immediately, After 24 Hours & After 2 Pours – An In-Vitro Study.
Journal Title: International Journal of Dental Science and Innovative Research (IJDSIR) - Year 2019, Vol 2, Issue 2
Abstract
Objectives: The accuracy of the definitive cast to a large extent is dependent on the impression technique, impression material, splinting (if used), and cast material in order to achieve passively fitting implant – retained prosthesis. This in vitro study aimed to comparatively evaluate the dimensional accuracy of multiple implant impressions using 3 different impression materials assessed at various time intervals. Materials and methods: 3 groups using Addition Silicone, Condensation Silicone and polyether impression materials were further divided into 2 subgroups each, as splinted open and non-splinted closed tray in each group. Thus, 90 impressions were made with the splinted open tray impression technique using perforated rigid custom made trays and dental floss and pattern resin as splinting materials, and 90 with non-splinted closed tray technique using perforated metal stock trays. Measurements of the inter-implant distances on the working casts in three dimensions were obtained by rapid photometer and the differences calculated in relation to the reference model. Results: The dimensional accuracy of Addition Silicone elastomeric impression material was significantly better at immediate and after 24 hour pour followed by Polyether and least for Condensation Silicone(P<0.001). On the other hand, after 2 pours the dimensional accuracy of Polyether was significantly better followed by Addition Silicone and least for Condensation Silicone. (P<0.001) Conclusion: Addition Silicone was the better impression material followed by polyether for a situation of multiple implants. Polyether was stable and suitable for multiple pours. The open tray was better for a situation of multiple implants than closed tray impression technique.
Authors and Affiliations
Dr Karunakar Shetty
Keywords
Related Articles
- EP ID EP578379
- DOI -
- Views 65
- Downloads 0
Mandibular Canine Index as a Tool for Sex Determinant.
Objective: Various methods are used for gender identification in forensic investigations. The canine tooth is widely used for gender determination because of its sexual dimorphism and durability in the oral cavity. Mandi...
Estimation of Salivary and Serum Ceruloplasmin Levels in Subjects with and Without Chronic Periodontitis - A Comparative Biochemical Study.
Introduction Periodontitis is a group of inflammatory diseases characterized by loss of connective tissue attachment and alveolar bone destruction. The initiation and the progression of periodontitis are dependent on th...
An Esthetic and Functional Fixed Posterior Space Maintainer-A Case Report.
Introduction Early loss of a deciduous tooth is one of the major causes for development of malocclusion. Space maintainers are the appliances that are custom-made by the dentist to prevent the space loss and its further...
Inflammatory Gingival Enlargement And Polycystic Ovary Syndrome (PCOS) A Case Series.
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women of reproductive age, which negatively affects various health systems. There is an extensive literature regarding the association of PCOS...
Fabrication of Custom Ocular Prosthesis – A Novel Approach.
The human eye is a spherical body, also known as the eyeball, it plays vital role in one of the six senses. From vision to expression it has its varied functions. Loss of this organ severely damages not only the function...