In vitro analysis of the marginal adaptation and discrepancy of stainless steel crowns
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Date
2018
Authors
Journal Title
Journal ISSN
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Publisher
Taylor & Francis
Abstract
Aim: The purpose of the study was to assess the marginal adaptation and discrepancy of SSC’s.
Differences in adaptation and discrepancy between the four surfaces (mesial, lingual, distal, and
buccal) were evaluated.
Methods: The placement of stainless steel crowns were completed on a phantom head in
accordance with the clinical technique. The ideal tooth preparation was made and this ‘master
tooth’ duplicated to achieve a sample size of 15. The stainless steel crowns were placed,
trimmed, and cemented as per the clinical technique. The cemented stainless crowns were analyzed
under 100 stereomicroscope magnification. The marginal adaptation and discrepancy of
each specimen was measured every 2 mm.
Results: All the specimens showed marginal adaptation and discrepancy. The lingual margin
had a significantly better adaptation (p<.0001) over the other surfaces. The buccal surface was
the only surface that had an appropriate supra-CEJ level with a significance of p<.0001.
Conclusion: The marginal discrepancies occur during the trimming procedure and assessment
of the gingival approximation of the SSC margin. The inspection of stainless steel crown adaptation
and discrepancy is an essential clinical step.
Description
Keywords
Biomaterial cement, Stainless steel crown, Gingival approximation, Crown margin
Citation
Riaan Mulder, Rasha Medhat & Nadia Mohamed (2018) Invitro analysis of the marginal adaptation and discrepancy of stainless steel crowns, Acta Biomaterialia Odontologica Scandinavica, 4:1, 20-29, DOI: 10.1080/23337931.2018.1444995