30 patients will have a dental implant placed in maxillary sites from teeth number 4 to 13. Any implant system is acceptable since the objective of the study is to evaluate soft tissue thickness due to graft placement, not to evaluate the implant. 15 patients will be randomly selected by a coin toss to receive a one layer of ADM (Control Group) while another fifteen will receive one layer of ADM and bovine-derived xenograft (Test Group). The graft will be placed simultaneously with the dental implant. A blinded examiner will be used. Should the examiner become unblinded the subject will be excluded from the study.