Corresponding Author

Department of Social and Preventive Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

Academic Unit of Oral Health, Dentistry and Society, School of Clinical Dentistry, University of Sheffield, Sheffield, UK

*Correspondence to:

Mario Vianna Vettore,

Department of Social and Preventive Dentistry,

Faculty of Dentistry,

Federal University of Minas Gerais,

Av. Antonio Carlos,

6627. Campus Pampulha,

Belo Horizonte, MG 31270-901, Brazil.

Email:mariovettore@gmail.com

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