Evaluation of rotational resistance, and rotational and vertical discrepancy of three different elastomeric impression materials with open tray implant level impressions on a special model

Ambedkar, Elumalai; Mariappan, Saravanakumar; Krishnan, C. J. Venkata; Sampathkumar, Jayakrishnakumar; Ramakrishnan, Hariharan; Sivaprakasam, Azhagarasan Nagarasampatti; Mahadevan, Vallabh

doi:10.54527/jdir.2021.40.3.66

Cited by 1 publication

(2 citation statements)

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“…However, further research is required to make a conclusive remark on the elastic recovery of PVES and its detailed reproduction. Regarding the rigidity of PVES, Elumalai et al [ 8 ] reported that PVES was the least rigid compared with PE and PVS, and the difference was significant ( p = 0.001). Rigidity is often associated with elastic modulus.…”

Section: Discussionmentioning

confidence: 99%

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Properties of a novel composite elastomeric polymer vinyl polyether siloxane in comparison to its parent materials: a systemic review and meta-analysis

Saini,

Alshadidi,

Hassan

et al. 2024

BMC Oral Health

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Background The effectiveness of newly developed elastomeric polymer hybrid siloxane (PVES), which combines the properties of polyethylene (PE) and polyvinyl siloxane (PVS) elastomers, has been a subject of interest in recent studies. This study aimed to assess the physical properties of hybrid PVES materials by analyzing existing data from recent studies on this topic. Methods A systematic literature search was conducted to retrieve peer-reviewed articles published up to February 5, 2023. The population, intervention, comparison, and pertinent outcomes were specified under the PICO framework. The primary data analysis was performed in Microsoft Excel, while statistical analysis used Meta-Essentials. Results Of the 1152 articles assessed, 14 met the inclusion criteria. The meta-analysis of the selected studies indicated that polyether (PE) and polyvinyl siloxane (PVS) were highly correlated (two-tailed p-values of 0.000 and 0.001, respectively) with the improved tensile strength of vinyl polyether siloxane (PVES) with a significantly positive effect size. Similarly, the hydrophilic characteristics of PVES were significantly improved compared to those of PE and PVS. PE was a significant contributor to the hydrophilic characteristics of PVES, with a two-tailed p-value of 0.000. The effect size was highly positive for hydrophilicity but showed high heterogeneity. It was also observed that the dimensional accuracy of PVES was comparable to those of PE and PVS, with no statistically significant differences among the three materials. Conclusions PVES showed promising features, with improved tensile strength and hydrophilic characteristics compared to those of PE and PVS.

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Section: Discussionmentioning

confidence: 99%

“…PEs exhibit moderate rigidity and higher tensile properties at low viscosities. Tear strength is also pronounced in heavy-body materials [ 8 ]. Dimensional stability governs the accuracy of impression materials; elastomeric impression materials show slight contraction upon setting, and PEs are no exception.…”

Section: Introductionmentioning

confidence: 99%