Soft Tissue Integration of Different Abutment Surfaces

Patients that need implant supported restoration were recruited for this study. At baseline a specific abutment was screwed at 20 N.Two months following healing abutment placement clinical measurements were evaluated.

Endopoints of the study:

Histological outcomes at 2 using traditional histological staining (ematossilin/eosin) Immunohistological outcomes at 2 using different stainings. Postoperative complications. Comparison between the histological outcomes and the preoperative clinical evaluation of the sites

Inclusion criteria

• Patient requiring implant supported restoration.
• Residual alveolar bone width of edentulous jaw of > 8mm.
• Keratinized mucosa width of >6mm
• Males and females between 18-80 years old
• Patients with healthy periodontal conditions (Treated periodontitis, PI<25%, BoP<25%)
• Patients that are willing to sign an informed consent and participate in a clinical study
• Generally fit and healthy and able to undergo oral surgical procedures under local anesthesia.
• Teeth at the surgical site which required removal were extracted a minimum of 12 weeks prior to sinus floor elevation

Exclusion criteria

• Patients who smoke over 10 cigarettes/day
• Pregnancy (confirmed by verbal inquiry)
• Chronic systemic pathologies (e.g. diabetes) and neoplastic of the Oro-Facial District 4.
• Patients taking bisphosphonates
• Any sites where an implant already failed sites
• Untreated Periodontitis
• Dental sites with acute infections
• Chronic inflammatory diseases of the oral cavity
• Autoimmune diseases (cortisone intake)
• Allergy declared to one or more medicaments to be used during treatment
• Alcoholics patients and/or drug addicts.
• History or malignant tumours of the maxillary sinus
• History of local radiation therapy