Cardaropoli et al. treated extraction alveoli in the posterior area either with Geistlich Bio-Oss® Collagen and Geistlich Bio-Gide® or by leaving them as control deficiencies subject to spontaneous healing. The results after four months were as follows:
Spontaneous healing
- Untreated sockets lost 40.15% of their original ridge width.
- The thinner the buccal bone plate, the greater the loss of bone post-extraction.
Ridge preservation
- Horizontal volume loss was significantly reduced in treated sockets (7.23%).
- Ridge width was well retained, regardless of the original thickness of the buccal bone plate.
The authors concluded that ridge preservation compensates for bone resorption following tooth extraction, regardless of the thickness of the buccal bone plate.
Reference
Cardaropoli D, Tamagnone L, Roffredo A, Gaveglio L. <link http: www.ncbi.nlm.nih.gov pubmed>Relationship between the buccal bone plate thickness and the healing of postextraction sockets with/without ridge preservation. Int J Periodontics Restorative Dent. 2014 Mar-Apr; 34(2):211-7.