Immediate Implant Placement in the Posterior Region Combining Sealing Socket Abutment and Peri-implant Socket Filling.

The primary endpoint of this study is to compare the soft tissue contour changes after immediate implant placement combined to peri-implant socket filling with a sealing socket abutment (SSA) versus a standard healing abutment. The hypothesis is that the SSA better preserves the alveolar ridge profile in the cervical region compared to a conventional healing abutment. The secondary objectives aim to evaluate 3D hard tissue changes, peri-implant bone remodeling, soft tissue health, esthetic outcomes and the patients related outcome measures.

Inclusion Criteria:Good general health (ASA I/II),More than 18 years old,Smoker < 10c/day, one hopeless tooth,Healthy periodontal condition,Presence of at least 2 mm of keratinized gingivaIntact buccal bone wallAdequate plaque control (FMPS ≤ 25%)Adequate bone quantity allowing an immediate implant procedure (apical bone height of at - Least 5 mm or presence of interradicular septum)Written consent providedExclusion Criteria:Auto-immune disease or immunocompromised patientsUncontrolled diabetesUse of steroids or biphosphonatesLocal or systemic infection (medical treatment needed prior to entrance to the study)Pregnancy or breastfeedingAlcoholism or chronically drug abuseBone availability requiring an angulated abutmentUntreated local inflammationCystMucosal disease or oral lesionsLocal irradiation therapyOral communication with sinus after the extraction