Effect of carbamide peroxide on biomechanical properties of vacuum-formed retainers: A split-mouth randomized controlled trial
dc.contributor.author | Jin, C. | |
dc.contributor.author | Gray, A.R. | |
dc.contributor.author | Brunton, Paul | |
dc.contributor.author | Farella, M. | |
dc.contributor.author | Mei, L. | |
dc.date.accessioned | 2024-04-23T02:25:21Z | |
dc.date.available | 2024-04-23T02:25:21Z | |
dc.date.issued | 2024 | |
dc.identifier.citation | Jin, C. and Gray, A.R. and Brunton, P.A. and Farella, M. and Mei, L. 2024. Effect of carbamide peroxide on biomechanical properties of vacuum-formed retainers: A split-mouth randomized controlled trial. Journal of Dentistry. 143: pp. 104902-. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/94902 | |
dc.identifier.doi | 10.1016/j.jdent.2024.104902 | |
dc.description.abstract |
Objective: To investigate the effect of tooth whitening on biomechanical properties of vacuum-formed retainers (VFRs). Methods: Using a split-mouth, randomised controlled trial design, thirty participants were randomly allocated to receive whitening on either the upper or the lower arch, using 10 % carbamide peroxide for two weeks. Biomechanical properties such as hardness, tensile strength, and surface roughness were assessed two weeks after whitening was completed. Results: Tensile strength of the whitening arch (mean ± SD: 40.93 ± 3.96 MPa) was significantly lower than that of the control (47.40 ± 5.03 MPa) (difference 6.47 MPa, 95 % CI 4.51 – 8.42, p < 0.001). Hardness and internal roughness of the whitening arch (VHN = 14.63 ± 2.29 N/mm2 and Ra = 1.33 ± 0.35 µm, respectively) were significantly greater than those of the control (12.22 ± 1.86 N/mm2 and 0.96 ± 0.29 µm, respectively) (differences 2.41 N/mm2, 95 % CI 1.56 – 3.25, p < 0.001 and 0.37 µm, 95 % CI 0.23 – 0.51, p < 0.001, respectively). The whitening arch showed greater tooth colour change (ΔE = 6.00 ± 3.32) than the control (ΔE = 2.50 ± 1.70) (difference = 3.50, 95 % CI 2.43 – 4.56, p < 0.001). Conclusions: Based on this short-term study, marked tooth colour change was achieved by whitening with VFRs as the whitening trays, but this changed the VFRs’ biomechanical properties, including a decrease in tensile strength and an increase in hardness and internal roughness. Clinical significance: The application of carbamide peroxide in VFRs may compromise their mechanical properties. | |
dc.language | eng | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Carbamide peroxide | |
dc.subject | Clinical studies | |
dc.subject | Orthodontic retainers | |
dc.subject | Orthodontics | |
dc.subject | Polyurethanes | |
dc.subject | Tooth bleaching | |
dc.subject | Humans | |
dc.subject | Carbamide Peroxide | |
dc.subject | Vacuum | |
dc.subject | Tooth Bleaching | |
dc.subject | Tooth | |
dc.subject | Tooth Bleaching Agents | |
dc.subject | Urea | |
dc.subject | Peroxides | |
dc.subject | Hydrogen Peroxide | |
dc.subject | Drug Combinations | |
dc.subject | Tooth | |
dc.subject | Humans | |
dc.subject | Peroxides | |
dc.subject | Hydrogen Peroxide | |
dc.subject | Urea | |
dc.subject | Drug Combinations | |
dc.subject | Tooth Bleaching | |
dc.subject | Vacuum | |
dc.subject | Tooth Bleaching Agents | |
dc.subject | Carbamide Peroxide | |
dc.title | Effect of carbamide peroxide on biomechanical properties of vacuum-formed retainers: A split-mouth randomized controlled trial | |
dc.type | Journal Article | |
dcterms.source.volume | 143 | |
dcterms.source.startPage | 104902 | |
dcterms.source.issn | 0300-5712 | |
dcterms.source.title | Journal of Dentistry | |
dc.date.updated | 2024-04-23T02:25:20Z | |
curtin.department | Office of the Deputy Vice-Chancellor, Academic | |
curtin.accessStatus | Open access | |
curtin.faculty | Office of the Deputy Vice-Chancellor, Academic | |
curtin.contributor.orcid | Brunton, Paul [0000-0001-9726-2987] | |
dcterms.source.eissn | 1879-176X | |
curtin.contributor.scopusauthorid | Brunton, Paul [7003684965] | |
curtin.repositoryagreement | V3 |