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Volume 13
Issue 4
10.3390/ma13040818
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Article

In Vitro Re-Hardening of Bleached Enamel Using Mineralizing Pastes: Toward Preventing Bacterial Colonization

by
Andrea Scribante
1,
Claudio Poggio
1,*,
Simone Gallo
1,*,
Paolo Riva
1,
Antonella Cuocci
1,
Manuel Carbone
1,
Carla Renata Arciola
2,3,* and
Marco Colombo
1
1
Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy
2
Laboratorio di Patologia delle Infezioni Associate all’Impianto, IRCCS Istituto Ortopedico Rizzoli, via di Barbiano 1/10, 40136 Bologna, Italy
3
Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via San Giacomo 14, 40126 Bologna, Italy
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(4), 818; https://doi.org/10.3390/ma13040818
Submission received: 13 December 2019 / Revised: 30 January 2020 / Accepted: 7 February 2020 / Published: 11 February 2020
(This article belongs to the Special Issue Anti-Infective Materials)
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Abstract

The search for materials able to remineralize human hard tissues is a modern medical challenge. In this study, the protective effect on the enamel microhardness by a paste based on hydroxyapatite and sodium fluoride (Remin Pro) was evaluated after two different enamel bleaching procedures. Forty sound human incisors were randomly assigned to different treatments: bleaching with an in-office agent (Perfect Bleach Office+); bleaching with an at-home agent (Perfect Bleach); bleaching with the in-office agent followed by the prophylaxis paste; bleaching with the at-home agent followed by the prophylaxis paste; no treatment (control). Bleaching was performed at 0, 8, 24 and 32 h, followed by a 3-min re-mineralizing treatment in the subgroups designed to receive it. Specimens underwent a micro-hardness tester and a mean Vickers Hardness number was considered for each specimen. ANOVA exhibited significant differences among groups. Post-hoc Tukey testing showed significant micro-hardness decrease after the application of both the two bleaching agents. The treatment with prophylaxis paste significantly increased the micro-hardness values of bleached enamel.
Keywords: enamel; tooth bleaching; micro hardness; prophylaxis paste; bacterial colonization enamel; tooth bleaching; micro hardness; prophylaxis paste; bacterial colonization

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MDPI and ACS Style

Scribante, A.; Poggio, C.; Gallo, S.; Riva, P.; Cuocci, A.; Carbone, M.; Arciola, C.R.; Colombo, M. In Vitro Re-Hardening of Bleached Enamel Using Mineralizing Pastes: Toward Preventing Bacterial Colonization. Materials 2020, 13, 818. https://doi.org/10.3390/ma13040818

AMA Style

Scribante A, Poggio C, Gallo S, Riva P, Cuocci A, Carbone M, Arciola CR, Colombo M. In Vitro Re-Hardening of Bleached Enamel Using Mineralizing Pastes: Toward Preventing Bacterial Colonization. Materials. 2020; 13(4):818. https://doi.org/10.3390/ma13040818

Chicago/Turabian Style

Scribante, Andrea, Claudio Poggio, Simone Gallo, Paolo Riva, Antonella Cuocci, Manuel Carbone, Carla Renata Arciola, and Marco Colombo. 2020. "In Vitro Re-Hardening of Bleached Enamel Using Mineralizing Pastes: Toward Preventing Bacterial Colonization" Materials 13, no. 4: 818. https://doi.org/10.3390/ma13040818

APA Style

Scribante, A., Poggio, C., Gallo, S., Riva, P., Cuocci, A., Carbone, M., Arciola, C. R., & Colombo, M. (2020). In Vitro Re-Hardening of Bleached Enamel Using Mineralizing Pastes: Toward Preventing Bacterial Colonization. Materials, 13(4), 818. https://doi.org/10.3390/ma13040818

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