August 12, 2019
Regeneration and preservation of jawbone has been an area of great interest for as long as dental implants have been around. Many techniques have been described in the literature including using autografts, allografts, xenograft, in block or particulate forms, all kinds of bones substitutes to regenerate bone that is lost with the loss of teeth.
We have long known that alveolar bone is bundle bone, the existence of which depends on the periodontal ligament when teeth are present, so a newer hypothesis emerged that if we can preserve the periodontal ligament then we can also prevent resorption of bone. To preserve the ligament the tooth is only partially extracted with the superficial parts of the root only remaining and the rest is removed when drilling to insert the implant. This is referred to as PET (Partial Extration Therapy).» Read More