Diabetes mellitus-associated periodontitis: differences between type 1 and type 2 diabetes mellitus - Aspriello, S D; Zizzi, A; Tirabassi, G; Buldreghini, E; Biscotti, T; Faloia, E; Stramazzotti, D; Boscaro, M; Piemontese, M (J Periodontal Res, 2011)