Abstract
Following tooth extraction, the alveolar ridge undergoes morphological and dimensional
changes, including a clot formation that is gradually replaced by granulation tissue.
Studies indicate that both horizontal and vertical ridge dimensions decrease after
extraction; however, these changes can be mitigated through grafting with biomaterials
and barrier membranes. Alveolar ridge preservation (ARP) techniques are employed to
counteract bone resorption postextraction, encompassing periosteal inhibition and
modified periosteal inhibition (MPI) techniques. The Degidi clot chamber technique
offers a means to achieve biomaterial-free extraction sockets, promoting healing and
osteointegration. This study aims to present the first rehabilitation of a postextraction
dental implant in the maxilla using an innovative ARP procedure via a MPI technique.
The technique does not involve autologous or heterologous grafting materials; instead,
a cortical lamina and a customized screw are used in conjunction with the blood clot.
The primary objective is to protect the vestibular cortical bone from preosteoclastic
aggression, which can trigger bone resorption. The technique employs a 0.5-mm cortical
lamina to mechanically shield the vestibular cortical bone, preventing vestibular
cortical bone resorption and increasing its thickness without the need for biomaterial
insertion, relying on the blood clot. The effectiveness of the technique was assessed
through a 12-month postimplantation cone-beam computed tomography scan, revealing
a 0.5-mm increase. Although based on a single case, the 1-year follow-up results are
promising, and further studies are warranted to validate the technique's efficacy.
Keywords
alveolar ridge preservation - periosteal inhibition - modified periosteal inhibition
- cortical lamina - dental implant - implant survival
