Guma, Elton; Kiliaridis, Stavros; Scherrer, Susanne S; Antonarakis, Gregory S (2023). An In Vitro Evaluation of the Effects of Air-Polishing Powders on Sound and Demineralised Enamel. Materials, 16(13) Molecular Diversity Preservation International MDPI 10.3390/ma16134811
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AIM
To evaluate the effects of two air-polishing powders, during orthodontic treatment, on the surface roughness of sound and demineralised enamel.
MATERIALS AND METHODS
Forty-two caries-free human molars were collected, and the enamel surfaces were flattened and polished. Teeth were assigned to two groups (n = 21 each), a sound- and a demineralised-enamel group (subjected to pH-cycling over 2 weeks to create artificially induced white spot-like lesions). Within each group, teeth were further assigned to three groups (n = 7 each), air polished with either sodium bicarbonate, erythritol, or a negative control (water). Each sample was treated for 5 and 150 s. The average surface roughness (Ra) for each sample was measured using white-light-sensor profilometry.
RESULTS
On sound enamel, the Ra was roughly 0.17 ± 0.07 μm. After 150 s of air polishing, the Ra increased with erythritol (by 0.28 μm), and even more so with bicarbonate treatment (by 0.68 μm) (p < 0.01). On demineralised enamel, the Ra was roughly 0.79 ± 0.56 μm. The Ra increased after 5 s of air-polishing treatment similarly with erythritol and bicarbonate powders (by 1.03 μm and 1.04 μm, respectively) (p = 0.025), and even more after 150 s (by 2.48 μm and 2.49 μm, respectively) (p < 0.001).
CONCLUSIONS
On white spot lesions, one should be aware that enamel surface roughness will increase with both erythritol and bicarbonate air-polishing powders, especially with longer exposure times.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Orthodontics 04 Faculty of Medicine > School of Dental Medicine |
UniBE Contributor: |
Kiliaridis, Stavros |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1996-1944 |
Publisher: |
Molecular Diversity Preservation International MDPI |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
17 Jul 2023 12:28 |
Last Modified: |
18 Jul 2023 03:15 |
Publisher DOI: |
10.3390/ma16134811 |
PubMed ID: |
37445125 |
Uncontrolled Keywords: |
air polishing bicarbonate demineralised enamel enamel erythritol orthodontics surface roughness white spot lesions |
BORIS DOI: |
10.48350/184848 |
URI: |
https://boris.unibe.ch/id/eprint/184848 |
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