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Effect of violet LED light on in-office bleaching protocols: a randomized controlled clinical trial

Kury, Matheus ; Wada, Erica Eiko ; Silva, Daylana Pacheco da ; Tabchoury, Cínthia Pereira Machado ; Giannini, Marcelo ; Cavalli, Vanessa

Journal of applied oral science, 2020-01, Vol.28, p.e20190720-e20190720 [Periódico revisado por pares]

Brazil: Faculdade De Odontologia De Bauru - USP

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Título:
Effect of violet LED light on in-office bleaching protocols: a randomized controlled clinical trial
Autor: Kury, Matheus ; Wada, Erica Eiko ; Silva, Daylana Pacheco da ; Tabchoury, Cínthia Pereira Machado ; Giannini, Marcelo ; Cavalli, Vanessa
Assuntos: Adolescent ; Adult ; Analysis of Variance ; carbamide peroxide ; Carbamide Peroxide - administration & dosage ; Colorimetry ; Combined Modality Therapy ; Dental Enamel - drug effects ; Dental Enamel - radiation effects ; dentin sensitivity ; Dentin Sensitivity - chemically induced ; Dentistry ; DENTISTRY, ORAL SURGERY & MEDICINE ; Female ; Humans ; hydrogen peroxide ; Hydrogen Peroxide - administration & dosage ; Light ; Male ; Original ; Phototherapy - methods ; Reference Values ; Risk Factors ; Spectrophotometry ; Statistics, Nonparametric ; Surface Properties - drug effects ; Surface Properties - radiation effects ; tooth bleaching ; Tooth Bleaching - methods ; Tooth Bleaching Agents - administration & dosage ; Treatment Outcome ; Young Adult
É parte de: Journal of applied oral science, 2020-01, Vol.28, p.e20190720-e20190720
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-News-1
ObjectType-Feature-3
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Authors' contributions
Kury, M. : Conceptualization (Supporting); Formal analysis (Supporting); Funding acquisition (Supporting); Investigation (Lead); Methodology (Lead); Writing-original draft (Lead); Eiko Wada, E. : Methodology (Supporting); Silva, D. P. : Methodology (Supporting); Tabchoury, C. P. M. : Methodology (Supporting); Resources (Supporting); Supervision (Supporting); Writing-review & editing (Supporting); Giannini, M. : Conceptualization (Supporting); Funding acquisition (Supporting); Resources (Supporting); Supervision (Supporting); Writing-review & editing (Supporting); Cavalli, V. : Conceptualization (Lead); Funding acquisition (Lead); Investigation (Lead); Project administration (Lead); Supervision (Lead); Writing-review & editing (Lead).
Descrição: Objective This study evaluated the clinical effect of violet LED light on in-office bleaching used alone or combined with 37% carbamide peroxide (CP) or 35% hydrogen peroxide (HP). Methodology A total of 100 patients were divided into five groups (n=20): LED, LED/CP, CP, LED/HP and HP. Colorimetric evaluation was performed using a spectrophotometer (ΔE, ΔL, Δa, Δb) and a visual shade guide (ΔSGU). Calcium (Ca)/phosphorous (P) ratio was quantified in the enamel microbiopsies. Measurements were performed at baseline (T 0 ), after bleaching (T B ) and in the 14-day follow-up (T 14 ). At each bleaching session, a visual scale determined the absolute risk (AR) and intensity of tooth sensitivity (TS). Data were evaluated by one-way (ΔE, Δa, ΔL, Δb), two-way repeated measures ANOVA (Ca/P ratio), and Tukey post-hoc tests. ΔSGU and TS were evaluated by Kruskal-Wallis and Mann-Whitney, and AR by Chi-Squared tests (a=5%). Results LED produced the lowest ΔE (p<0.05), but LED/HP promoted greater ΔE, ΔSGU and Δb (T 14 ) than HP (p<0.05). No differences were observed in ΔE and ΔSGU for LED/CP and HP groups (p>0.05). ΔL and Δa were not influenced by LED activation. After bleaching, LED/CP exhibited greater Δb than CP (p>0.05), but no differences were found between these groups at T 14 (p>0.05). LED treatment promoted the lowest risk of TS (16%), while HP promoted the highest (94.4%) (p<0.05). No statistical differences of risk of TS were found for CP (44%), LED/CP (61%) and LED/HP (88%) groups (p>0.05). No differences were found in enamel Ca/P ratio among treatments, regardless of evaluation times. Conclusions Violet LED alone produced the lowest bleaching effect, but enhanced HP bleaching results. Patients treated with LED/CP reached the same efficacy of HP, with reduced risk and intensity of tooth sensitivity and none of the bleaching protocols adversely affected enamel mineral content.
Editor: Brazil: Faculdade De Odontologia De Bauru - USP
Idioma: Inglês;Português

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Effect of violet LED light on in-office bleaching protocols: a randomized controlled clinical trial

Kury, Matheus ; Wada, Erica Eiko ; Silva, Daylana Pacheco da ; Tabchoury, Cínthia Pereira Machado ; Giannini, Marcelo ; Cavalli, Vanessa

Brazil: Faculdade De Odontologia De Bauru - USP

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