Tooth sensitivity in different arches post in-office dental bleaching: A multicenter randomized controlled trial.

Alessandra Reis, Karine Letícia da Silva, Alessandro D Loguercio, Michael Willian Favoreto, Camila Mendes Camargo, Emanuel Adriano Hul, Kaliane Rodrigues da Cruz, Luiz Felipe Petronilho Pereira, Thalita de Paris Matos

Journal: Journal of dentistry 2024;151():105383

PMID: 39389410

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Abstract

OBJECTIVE

To compare the risk and intensity of tooth sensitivity (TS) and gingival irritation (GI), as well as bleaching efficacy (BE) in the maxillary and mandibular arches after in-office dental bleaching.

MATERIALS AND METHODS

90 participants were randomly into two groups according to the arch (maxillary or mandibular) in which the patient will first receive a 35 % hydrogen peroxide gel (2 sessions; 1 × 30 min; 1 week apart). TS and GI were recorded immediately after, up to 1 h, 24 h and 48 h after bleaching, using the 0-10 Visual Analogue Scale (VAS). BE was assessed before bleaching and 30 days after the end of the treatment (shade guide units [ΔSGU], CIELab [ΔE], CIEDE2000 [ΔE] and Whiteness Index for Dentistry [WI]). TS and GI were compared using McNemar's and paired t-test. BE were compared with Wilcoxon Signed Rank Test (ΔSGU) and paired t-test (ΔE, ΔE and WI) (α = 0.05).

RESULTS

The risk and the intensity of TS was statistically higher for the mandibular arch (p < 0.003). The risk and intensity of GI did not differ between arches (p > 0.38). Both arches demonstrated significant BE (ΔSGU, ΔE, ΔE and WI), without differences between them (p > 0.08).

CONCLUSIONS

In-office dental bleaching induces higher risk and the intensity of TS in the mandibular arch when compared to maxillary arch, without significant differences in gingival irritation, or bleaching efficacy.

CLINICAL RELEVANCE

Most patients experience tooth sensitivity regardless of the dental arch involved. However, when performing in-office dental bleaching, clinicians should consider that the mandibular arch is more likely to experience greater sensitivity compared to the maxillary arch.

Address: Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil; Department of Restorative Dentistry, Tuiuti University of Parana, Padre Ladislau Kula, 395, Santo Inácio, Curitiba, Paraná, 82010-210, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, Tuiuti University of Parana, Padre Ladislau Kula, 395, Santo Inácio, Curitiba, Paraná, 82010-210, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, Tuiuti University of Parana, Padre Ladislau Kula, 395, Santo Inácio, Curitiba, Paraná, 82010-210, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, Tuiuti University of Parana, Padre Ladislau Kula, 395, Santo Inácio, Curitiba, Paraná, 82010-210, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil. Electronic address: [email protected].; Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil. Electronic address: [email protected].

DOI: 10.1016/j.jdent.2024.105383

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MeSH Terms: Humans, Dentin Sensitivity, Tooth Bleaching, Female, Tooth Bleaching Agents, Male, Adult, Hydrogen Peroxide, Maxilla, Young Adult, Dental Arch, Mandible, Treatment Outcome, Adolescent