Bulk vs wedge shape layering techniques in V class cavities: marginal infiltration evaluation


Published: 30 November 2017
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Authors

  • Roberto Lo Giudice Department of Clinical and Experimental Medicine, Messina University, Italy.
  • Francesco Puleio Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Messina University, Italy.
  • Carmine Verrusio Department of Neurosciences, Reproductive and Odontostomatological Sciences, Naples "Federico II" University, Italy.
  • Marco Matarese Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Messina University, Italy.
  • Angela Alibrandi Department of Economics, Statistics, Mathematics and Sociology, Messina University, Italy.
  • Angelo Lizio Department of Clinical and Experimental Medicine, Messina University, Italy.

Objective: The aim of this in vitro research was to assess if the different stratification techniques could influence the marginal gap in V class restoration. Material and methods: Standard 6 4 4 mm class V cavities were prepared on the buccal side of 24 extracted sound human premolars. Specimens were randomly divided in two groups: (A) Bulk filling technique; (B) Wedge-shape layering technique. The interfacial sealing ability of the stratification techniques was evaluated by scoring the 7% methylene blue penetration depth through optical microscope observations. The infiltration assessment was performed with a progressive score. Differences in infiltration scores recorded for the tested techniques were evaluated for statistical significance (Mann—Whitney U test, p < 0.05). Results: The A group showed a mean score of 1.166 1.114, registering the higher score of 3; the B group the mean score was 0.666 0.778, and a higher score of 2. The two tails Mann—Whitney analysis showed a 0.270 non-significant result. Conclusion: Considering the limitation related to the technique used for the infiltration analysis in small V class cavities, the infiltration score is not influenced by the different stratification techniques.


Lo Giudice, R., Puleio, F., Verrusio, C., Matarese, M., Alibrandi, A., & Lizio, A. (2017). Bulk vs wedge shape layering techniques in V class cavities: marginal infiltration evaluation. Giornale Italiano Di Endodonzia, 31(2), 73–77. https://doi.org/10.32067/gie.2017.31.02.02

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