A healing abutment is selected to be 2mm above the mucosa. The mucosa is adjusted and sutured with interrupted sutures (3-0 silk). Postoperatively, the patient should rinse with 0.2% chlorhexidine gluconate mouthwash for 2 weeks. Immediately following implant surgery, generous relief of the existing mandibular complete denture is carried out and a tissue conditioner is applied to the undersurface of the denture. The patient leaves after the surgical operation wearing both the complete maxillary denture opposed by the tissue-conditioned mandibular complete denture. A period of 8 weeks will be allowed for healing and osseointegration.