Abstract | INTRODUCTION: The wave (W) element offers a surface topography assessment method with the potential to yield unique data. AIMS AND OBJECTIVES: This study uses glass ionomer cement specimens prepared with six Atraumatic Restorative Treatment (ART) surface treatments to explore arc- and line-modified waviness of these surfaces to determine if they gave similar results. METHODS: Six specimens (5 x 1.5mm) were prepared for each of the six surface treatments: (1) surface compressed with a Vaseline lubricated finger ( Va); (2) Va followed by carving with an excavator(Ca); (3) Ca burnished with a ball burnisher (Bu); (4) surface compressed with the gloved finger lubricated with poly-acrylic acid (Aa); (5) surface cured against a Mylar strip (My); (6) My polished with a white rubber sulcus wheel (Po). After storage in distilled water for seven days at 37 degrees C W(a), W(v), W(p), W(t) was analysed using arc- and line-modifications of the raw profile. The data were analysed using a General Linear Models analysis and Tukey's Studentised range test with P < 0.05. RESULTS: Ca and Bu; Va and Aa; and My and Po formed three groups with descending ranking order for W whether arc- or line-modified. Arc-modified tracing data was unable to statistically distinguish between surface treatments whereas line-modification showed significant differences between treatments for all parameters measured (W(a), W(v0, W(p), W(t)). CONCLUSIONS: Line-modified waviness data was better able to distinguish between surface treatments than arc-modification. Wave offers unique surface topography data having potential value to dental materials researchers.
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Authors | E S Grossman, M Rosen, S Mickenautsch, P E Cleaton-Jones |
Journal | SADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging
(SADJ)
Vol. 62
Issue 9
Pg. 394-7
(Oct 2007)
ISSN: 1029-4864 [Print] South Africa |
PMID | 18260549
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Acrylic Resins
- Dental Materials
- Glass Ionomer Cements
- carbopol 940
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Topics |
- Acrylic Resins
(therapeutic use)
- Dental Materials
(chemistry)
- Dental Polishing
(methods)
- Glass Ionomer Cements
(chemistry)
- Surface Properties
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