Details

Autor(en) / Beteiligte

• Meireles, Sônia Saeger
• de Oliveira, Renata Dantas Barreto
• Barbosa, Marcella Tuanny Guedes
• da Silva, Karine Letícia
• Loguercio, Alessandro Dourado

Titel

Efficacy and tooth sensitivity of at-home bleaching in patients with esthetic restorations: a randomized clinical trial

Ist Teil von

• Clinical oral investigations, 2022, Vol.26 (1), p.565-573

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• Objectives This study aims to evaluate the color change and tooth sensitivity (TS) caused by at-home bleaching in patients with sound and with restored teeth. Methods Forty patients were selected according to the inclusion and exclusion criteria and divided into two groups: So (patients with six caries-free maxillary anterior teeth) and Re (patients with at least one restoration in the six maxillary anterior teeth). Both groups were bleached with 10% carbamide peroxide (CP) at-home bleaching. The color change (CIELab [ΔE* ab ], CIEDE00 [ΔE 00 ], and whiteness index [ ∆WI D ]) were assessed using a spectrophotometer at baseline, 2 weeks, and 1 and 3 months after bleaching. Patients recorded their TS using a numeric rating scale (0–4). Data of color change were submitted to Student’s T-test. The absolute risk and intensity of TS were compared using Fisher’s and the Mann–Whitney tests, respectively (α = 0.05). Results Higher ΔE* ab , ΔE 00 , and ∆WI D values were observed for So in relation to Re after all recall rate ( p  < 0.0001). No significant differences were observed regarding of bleaching-induced TS ( p  > 0.9). Conclusions At-home dental bleaching with 10% CP generated the same pattern of TS in patients with or without restorations. However, in patients with restored teeth, it produced a lower color change after 2 weeks of bleaching. Clinical significance After 2 weeks of at-home bleaching, a lower whitening effect was observed in patients with anterior restorations when compared with patients with sound teeth. Trial registration ClinicalTrials.gov identifier RBR-52j6gmg