Alveolar Ridge Preservation Techniques After Tooth Extraction

Clinical Evaluation of Different Alveolar Ridge Preservation Techniques After Tooth Extraction: a Single- Center, Triple Blinded Randomized Clinical Trial.

The aim of the present randomized controlled trial (RCT) was to evaluate the efficacy of different alveolar ridge preservation (ARP) techniques on hard tissue dimensional alterations after tooth extraction, based on clinical measurements.

Thrirty-six patients were randomly assigned in four treatment groups: A) freeze-dried bone allograft (FDBA) covered with collagen sponge (CS), B) FDBA covered with free gingival graft (FGG), C) demineralized bovine bone mineral xenograft (DBBM) covered with FGG and D) FGG without socket grafting. Clinical measurements were performed immediately after tooth extraction and 4 months later. The related outcomes pertained to both vertical and horizontal assessment of bone loss

Inclusion Criteria:

• systematically healthy patients
• non-smokers
• no use of antibiotics for the last 3 months
• presence of a non-restorable single-rooted tooth in the maxilla.

Exclusion Criteria:

• Patients were excluded when a bony wall loss of more than 50% was verified for the socket after the extraction