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Patient informed consent was waived due to the retrospective nature and anonymity of data treatment.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Non applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"Cristina de-la-Rosa-Gay and Andrea Hern\u00e1ndez-Mangas declare no conflicts of interest. Eduard Valmaseda-Castell\u00f3n, Rui Figueiredo and Octavi Camps report grants, personal fees, and non-financial support from Avinent (Spain), Inibsa (Spain), Dentaid SL (Spain). Dr. Valmaseda-Castell\u00f3n and Rui Figueiredo also report grants and personal fees from MozoGrau (Spain) and personal fees from Laboratorios Silanes (Mexico) outside the submitted work. They have also participated as investigators in randomized clinical trials sponsored by Geistlich Pharma AG (Switzerland), Mundipharma (UK), Hyloris Development (Belgium) and BBraun (Germany). Dr. Rui Figueiredo and Octavi Camps-Font also reports personal fees from Nobel Biocare (Switzerland). Dr. Figueiredo additionally reports personal fees from Geistlich Pharma AG and Septodont (France).","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"123"}}