OBJECTIVES: The aim of this research was to compare two-dimensional (2D) and three-dimensional (3D) tooth measuring techniques after subjecting enamel samples to tooth wear in vitro on an erosion-abrasion model. METHOD: 80 polished mid-coronal enamel sections were subjected to 10 wear cycles. Each cycle consisted of remineralization for 2 h in artificial saliva, followed by 10 min immersion in one of four acidic fruit drinks or distilled water and finally toothbrush abrasion with a non-fluoridated tooth paste. The resulting wear scars were measured using 2D and 3D techniques using surface matching software. RESULTS: The 2D step heights measurements from the exposure to the four acidic drinks showed no statistically significant differences (median wear range=22.4-32.5 microm) between them (p=0.99) but there were differences with distilled water (median wear=10.0 microm) (p=0.01). The 3D measurements showed that two drinks produced more wear compared to the others and water when the whole surface and volume exposed to wear was accounted for (p=0.01). SIGNIFICANCE: The difference in data from the two techniques showed that 3D measurements gave a more accurate assessment of the impact of the wear regime. Copyright 2010 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
OBJECTIVES: The aim of this research was to compare two-dimensional (2D) and three-dimensional (3D) tooth measuring techniques after subjecting enamel samples to tooth wear in vitro on an erosion-abrasion model. METHOD: 80 polished mid-coronal enamel sections were subjected to 10 wear cycles. Each cycle consisted of remineralization for 2 h in artificial saliva, followed by 10 min immersion in one of four acidic fruit drinks or distilled water and finally toothbrush abrasion with a non-fluoridated tooth paste. The resulting wear scars were measured using 2D and 3D techniques using surface matching software. RESULTS: The 2D step heights measurements from the exposure to the four acidic drinks showed no statistically significant differences (median wear range=22.4-32.5 microm) between them (p=0.99) but there were differences with distilled water (median wear=10.0 microm) (p=0.01). The 3D measurements showed that two drinks produced more wear compared to the others and water when the whole surface and volume exposed to wear was accounted for (p=0.01). SIGNIFICANCE: The difference in data from the two techniques showed that 3D measurements gave a more accurate assessment of the impact of the wear regime. Copyright 2010 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
Authors: J F Esquivel-Upshaw; M J Kim; S M Hsu; N Abdulhameed; R Jenkins; D Neal; F Ren; A E Clark Journal: J Dent Date: 2017-10-16 Impact factor: 4.379
Authors: Saoirse O'Toole; David Bartlett; Andrew Keeling; John McBride; Eduardo Bernabe; Luuk Crins; Bas Loomans Journal: J Med Internet Res Date: 2020-11-27 Impact factor: 5.428
Authors: Josephine F Esquivel-Upshaw; Shu-Min Hsu; Ana C Bohórquez; Nader Abdulhameed; Gary W Scheiffele; Mijin Kim; Dan Neal; John Chai; Fan Ren Journal: Clin Exp Dent Res Date: 2020-09-21