Journal of Dental Implants
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Year : 2020  |  Volume : 10  |  Issue : 2  |  Page : 84-92

A comparative study to evaluate the retention of conventional retention sleeve material versus retention.sil 600 in implant-retained overdentures: In vitro study

Department of Prosthodontics and Crown and Bridge, ITS-CDSR, Muradnagar, Uttar Pradesh, India

Correspondence Address:
Dr. Shuja Mohammed Khan
Post Graduate Trainee, Department of Prosthodontics Including Crown & Bridge, Maxillofacial Prosthodontics & Oral Implantology, I.T.S Centre for Dental Studies and Research, Muradnagar, Ghaziabad-201 206, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jdi.jdi_14_20

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Purpose: The aim of this study was to assess and evaluate the retention of conventional retentive sleeve material versus retention.sil in implant-retained overdentures. Methodology: Custom-designed models of uniform dimensions were made from heat-polymerized polymethyl methacrylate resin. The model had two components which comprised a lower member (matrix) and an upper member (patrix). The lower member (matrix) was embedded with two ADIN implant analogs attachment (Adin Implant System Ltd. Israel) of 3.75 mm × 10 mm with prefabricated ball attachment at an interimplant distance of 20 mm. The upper member was prepared to receive two different retention sleeve materials, conventional retentive/plastic sleeve attachment (Adin Implant System Ltd. Israel), and retention.sil 600 (Bredent medical GmbH and Co. KG). Using a universal testing machine, each of the models was subjected to 100 pulls each to dislodge the upper member from the lower member, and the force values as indicated on the digital indicator were tabulated. Statistical Analysis Used: Statistical analysis comprised Kolmogorov–Smirnov test, Friedman test, Mann–Whitney test, and Wilcoxon signed-rank test. Results: The statistical model revealed that when subjected to vertically directed forces, the conventional retentive/plastic sleeve attachment (Adin Implant System Ltd. Israel) developed higher retentive force as compared to the retention.sil 600 (Bredent medical GmbH and Co. KG). Conclusions: The conventional retentive sleeve material maintains their retentive capacity longer than the retention.sil 600. Further research is required to increase the retentive force in retention.sil material, thereby increasing denture retention and stability.

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