Socket Augmentation: Rationale and Technique

TLDR

Exodontia causes rapid alveolar bone resorption and atrophy, limiting implant placement without grafting and motivating ridge augmentation techniques to preserve bone. This article explains the rationale for alveolar ridge augmentation to preserve or minimize edentulous ridge volume loss. The technique involves careful extraction with minimal socket wall damage, ensuring infection‑free sockets, allowing grafting with bleeding to promote healing, and optionally covering the site with dressings, flaps, or membranes to stabilize the wound.

Abstract

The consequences of exodontia include alveolar bone resorption and ultimately atrophy to basal bone of the edentulous site/ridges. Ridge resorption proceeds quickly after tooth extraction and significantly reduces the possibility of placing implants without grafting procedures. The aims of this article are to describe the rationale behind alveolar ridge augmentation procedures aimed at preserving or minimizing the edentulous ridge volume loss. Because the goal of these approaches is to preserve bone, exodontia should be performed to preserve as much of the alveolar process as possible. After severance of the supra- and subcrestal fibrous attachment using scalpels and periotomes, elevation of the tooth frequently allows extraction with minimal socket wall damage. Extraction sockets should not be acutely infected and be completely free of any soft tissue fragments before any grafting or augmentation is attempted. Socket bleeding that mixes with the grafting material seems essential for success of this procedure. Various types of bone grafting materials have been suggested for this purpose, and some have shown promising results. Coverage of the grafted extraction site with wound dressing materials, coronal flap advancement, or even barrier membranes may enhance wound stability and an undisturbed healing process. Future controlled clinical trials are necessary to determine the ideal regimen for socket augmentation.