PMID: 8583025Aug 1, 1995Paper

Temperature dependence of toothbrush bristle morphology. An ultrastructural study

Journal of Clinical Periodontology
M Franchi, L Checchi

Abstract

In this study, it was demonstrated that the original forms of toothbrush bristle ends undergo morphological changes during the preparatory procedures required prior to their examination by scanning electron microscopy (SEM). In particular, the distance of the specimens from the cathode of a traditional sputter-coater and the time of gold-palladium coating influence the temperature inside the vacuum compartment. Moreover, the temperature influences the original morphology of toothbrush bristles. 2 segments of each toothbrush head with nylon or ultralon bristles were cut off the brush: one was mounted vertically and one horizontally on stubs for SEM analysis. Different temperatures were measured inside the sputter-coater at the level of the bristle ends, during coating with gold-palladium alloy. The temperature at the level of the bristles that were placed horizontally was about 38 degrees C, and 59 degrees C when they were placed vertically. SEM analysis of the specimens showed that the same toothbrush has end-rounded bristles at about 59 degrees C and non-acceptable irregular bristles at about 38 degrees C. Retraction of bristles (which appeared shortened and with increased diameters) and superficial cracks were particularly pr...Continue Reading

References

Apr 1, 1979·Journal of Periodontology·J BreitenmoserH R Mühlemann
Aug 1, 1983·Australian Dental Journal·M P Chong, D R Beech
Apr 1, 1980·Australian Dental Journal·G A Zarb, H F MacKay

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Citations

Apr 21, 2001·Journal of Clinical Periodontology·L ChecchiG Forteleoni
Jan 12, 2005·Journal of Clinical Periodontology·H Meyer-LueckelA M Kielbassa
May 11, 2005·Journal of Clinical Periodontology·Martin JungWilli-Eckhard Wetzel
Jul 20, 2004·Journal of Clinical Periodontology·L ChecchiM Montevecchi
Oct 22, 2010·International Journal of Paediatric Dentistry·Melek D TurgutMeryem Tekçiçek
Oct 8, 2011·Biomacromolecules·Xuebing LiShuihong Cheng

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