Acellular Dermal Matrix Versus Tenting Technique in Peri-implant Soft Tissue Augmentation and Crestal Bone Stability

Inclusion Criteria: * Male and female patients between 18-75 years old. * Physical and psychological capacity to undergo implant therapy (ASA I or II). * Fully healed single mandibular posterior treatment sites (premolars or molars) being edentulous for at least 3 months. * Minimum of 6 mm width and 8 mm height native bone ridge. * No requirement for concomitant or a history of regenerative treatments. * Minimum of 4mm keratinized mucosa at the implant site (2 mm buccal and 2mm lingual). * Healthy non-inflamed keratinized soft tissues with a maximum soft tissue thickness height of 2 mm measured at crestal buccal and lingual aspects. * Periodontally healthy by fulfilling all of the following criteria: Full-mouth bleeding score (FMBS) \< 20%, Full-mouth plaque score (FMPS) \< 15%, Community Periodontal Index of Treatment Needs (CPITN) \< 2. Exclusion Criteria: * Patients with a history of periodontitis. * Poor oral hygiene after Oral Hygiene Instructions (OHI). * Pregnant or lactating. * Uncontrolled concomitant medical diseases, e.g., diabetes. * Receiving or having received pharmacological treatment affecting wound healing within 3 months prior to the study-related intervention.