A method of preserving alveolar bone parameters after tooth removal using a tooth root fragment: a clinical case

Abstract

Various osteoplastic materials for the conservation of sockets of extracted teeth are actively using to preserve the volume of bone tissue before installing of dental implants. In particular, materials from extracted teeth are used: ground dentin matrix, dentin blocks and fragments of extracted teeth. The purpose of this work is to show the advantages of the technique of preserving the sockets of extracted teeth with a blood clot and a root fragment over platelet concentrate (PRGF).
Materials and methods.
A 30-year-old patient had failed teeth 1.8, 2.8, 3.8, 3.6 and 4.6 removed in preparation for implantation. The socket of tooth 3.6 was preserved with a blood clot and a fragment of the root of tooth 1.8. The socket of tooth 4.6 was preserved with PRGF from the patient's venous. After 4 months, alveolar ridge resorption in the area of extracted teeth 3.6 and 4.6 was compared.
Results.
After 4 months, the loss of bone tissue around the socket, preserved with a fragment of the tooth root, was 2% in height and 10% in width compared to the initial volume. In the socket area where PRGF was used for preservation, the loss was 16% in height and 37% in width. The primary stability of the implants installed in the resulting bone regenerate in both cases exceeded 30 N·cm. At the same time, the density of newly formed bone tissue obtained using a fragment of a tooth root turned out to be higher than when using PRGF.
Conclusion.
A tooth root fragment is an effective and safe material for preserving the parameters of the alveolar ridge of the jaws in the preimplantation period.