Pressurised putty technique: A technical report

Authors

  • Joshua Ee Xin Ong Centre for Restorative Dentistry Studies, Faculty of Dentistry, MARA University of Technology, Malaysia & Faculty of Dentistry, Oral & Craniofacial Sciences, Guy’s Hospital, King’s College London, United Kingdom

DOI:

https://doi.org/10.31436/ijohs.v4i2.215

Keywords:

pressurised putty, surface detail reproducibility, structural homogeneity

Abstract

The surface detail reproducibility of conventional putty impressions is hindered by high viscosity and low flowability. In the plastic industry, injection moulding application utilizes an influx of pressure to achieve better flowability. Leveraging this concept, this technical report investigated the impact of pressure on surface detail reproducibility and structural homogeneity, featuring the pressurised putty technique. Surface detail reproducibility and structural homogeneity of three techniques (non-pressurised, putty & light body wash and pressurised) were visually assessed and differences in surface detail reproducibility were observed among all techniques. Whilst a pressurised clear-based putty index presented a more uniform glassy finish. The outlined technique suggests a simplistic and cost-effective way of improving a putty index, which may benefit many clinicians in terms of prosthodontic success.

References

Conant, J.B., Tongberg, C.O. (1930). Polymerization reactions under high pressure. I. Some experiments with isoprene and butyraldehyde. Journal of the American Chemical Society, 52, 1659-1669.

Ghahremanloo, A., Seifi, M., Ghanbarzade, J., Abrisham, S.M., Javan, R.A. (2017). Effect of polyvinyl siloxane viscosity on accuracy of dental implant impressions. Journal of Dentistry (Tehran, Iran), 14(1), 40-47.

Kirk M.C., & Patrick W. (2011). Plastics Processing. In: M. Kutz (ed.), Applied Plastics Engineering Handbook. New York: William Andrew Publishing, pp. 195-203.

Kojima Y., Matsuoka. T., Takahashi. H. (2002). Structure of poly(methyl methacrylate) synthesized under high pressure. Journal of Material Science Letters, 21, 473-475.

Nguyen, J.F., Migonney, V., Ruse, N.D., Sadoun, M. (2012). Resin composite blocks via high-pressure high-temperature polymerization. Dental Materials, 28(5), 529-534.

Nishigawa, G., Maruo, Y., Irie, M., Oka, M., Tamada, Y., Minagi, S. (2013). New theoretical model to measure pressure produced during impression procedure for complete dentures-Visual inspection of impression material flow. Dental Materials, 29(5), 530-534.

O’Brien, W.J. (2002). Dental materials and their selection, 3rd ed. Chicago: Quintessence Publishing, pp.90-112.

Schettino, V., Bini, R., Ceppatelli, M., Citroni. M. (2008). Activation and control of chemical reactions at very high pressure. Physica Scripta, 78, 1-5.

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Published

2023-07-31

How to Cite

Ong, J. E. X. (2023). Pressurised putty technique: A technical report. IIUM Journal of Orofacial and Health Sciences, 4(2), 152–156. https://doi.org/10.31436/ijohs.v4i2.215