Randomized Clinical Trial, Conventional Treatment-controlled, Studying the Efficacy of Plasma Rich in Growth Factor (PRGF®) in Alveolar Ridge Preservation After Simple Exodontia in the Anterior Region of Maxilla.

Inclusion criteria

• - Subjects of both sexes with an age greater than or equal to 18 years.
• Clinical indication for a simple exodontia in the aesthetic zone (from left 2nd premolar to the right 2nd premolar in the maxilla).
• Need of a dental implant placement in the extraction site.
• Availability to follow-up during the treatment period
• Subjects with non-active periodontal disease.
• Buccal dehiscence < than 25% in the vestibular table

Exclusion criteria

• - Presence of an active infection
• Loss of any plate of the socket
• Severe inflammation in the area of the exodontia previous to the intervention
• Have previous diagnosis of a coagulopathy.
• Have previous diagnosis of any autoinmune disease.
• Have received radiotherapy, chemotherapy or immunosuppressive treatments, systemic corticosteroids and/or anticoagulants the 30 days prior to inclusion
• Regular treatment with AINES or other antiinflammatory drugs
• Previous history of chronic hepatitis or heatic cirrhosis
• Positive markers for VHC, AgHBs, VIH I/II or Treponema pallidum
• Uncontrolled diabetes mellitus (Glycosylated hemoglobin higher than 9%)
• Subjects submitted to hemodyalisis
• Presence of malignant tumour, haemangiomas or angioma in the exodontia region.
• Previous history of ischemic cardiopathy in the last year.
• Pregnancy or womens in childbearing age who do not take contraception measures.
• Nursing womens
• Metabolic bone disease
• Ongoing treatment with biphosphonates both through oral or intravenous administration
• Smoking habits (> 10 cigarrettes/day)
• In general, any disability to participate in the study