Dimensional Changes of the Labial Alveolar Ridge After Socket Shield Technique With Computer Guided Root Sectioning

Inclusion Criteria: * medically healthy patients (ASA 1, ASA 2 categories) , * over 18 years old presenting with hopeless teeth due to extensive caries, * cervical root fracture, * vertical or oblique root fracture, * multiple failed endodontic treatments, * root resorption. Exclusion Criteria: * medically compromised patients (the ASA 3, ASA 4 and ASA5 categories) * vertical root fracture involving the labial aspect of the root that will be retained, * horizontal fracture of the root that is too far apically located * presence of acute (active) periapical infection * lack of sufficient bone to obtain implant primary stability apical and/or palatal to the extraction socket, * ankylosed tooth which is positioned too apically in relation to the adjacent teeth, * type 3 extraction sockets according to Elian and Tarnow extraction sockets classification