Response to a letter to the editor addressing the publication "Effect of nonsurgical periodontal therapy and strict plaque control on preterm/low birth weight: a randomized controlled clinical trial". - Weidlich P; Moreira CH; Fiorini T; Musskopf ML; da Rocha JM; Oppermann ML; Aass AM; Gjermo P; Susin C; Rösing CK; Oppermann RV (Clinical oral investigations, 2014)