Response to the Letter to the Editor on “Comparison between flapless and open-flap implant placement: a systematic review and meta-analysis” - Lemos, C. A.A. [UNESP]; Verri, F. R. [UNESP]; Cruz, R. S. [UNESP]; Gomes, J. M.L. [UNESP]; dos Santos, D. M. [UNESP]; Goiato, M. C. [UNESP]; Pellizzer, E. P. [UNESP] (Elsevier, 2019)