Alcohol consumption, tooth position, and periodontitis-related tooth extraction affect the complexity of subsequent implant surgery after alveolar ridge preservation.

Materials and methods We retrospectively analyzed the dentition of 165 alveolar ridge preservation sites in 116 patients. The bone width at three different vertical levels was measured on cone beam computed tomography images, and a comparison of bone regeneration requirements for subsequent dental implant surgery was performed for different socket types.

Inclusion Criteria:

• teeth extraction in the premolar and molar regions, who underwent flapless tooth extraction with alveolat ridge preservation (ARP) and filling with freeze-dried bone allograft (FDBA) and platelet-rich fibrin (PRF), who underwent cone beam computed tomography (CBCT) followed by dental implant surgery after tooth extraction, and with adequate oral hygiene

Exclusion Criteria:

• untreated periodontitis, systemic disease, or the of medication that influences bone metabolism

Of 165 sites, dental implant surgery was performed at 156 sites. A total of 72 damaged sockets and 93 intact sockets were included.