Shinyoung Park

Alveolar ridge preservation (ARP) has been introduced to minimize the dimension of alveolar ridge resorption after extraction and to simplify the surgical procedure when placing implants. However, additional bone grafting could not be completely prevented when particulate bone is used during ARP, due to particulate bone’s lack of stability and inadequate volume maintenance properties at the coronal level. Block bone shows better mechanical properties compared to particulate bone, therefore we hypothesized that using block bone will be able to maintain better coronal dimension leading to no additional bone grafting when placing implants. Furthermore, one of the most cumbersome properties of using block bone is fixation of the block bone. By creating the self-retained block bone method, we aimed to simplify surgical procedures using block bone. In this method, the block bone is perfectly fitted into the prepared socket, achieving low stability and high retention of the block bone without any fixation device. This presentation will introduce three clinical cases of ARP using the self-retained block bone method. In these cases, block bone successfully augmented and maintained coronal horizontal dimension of the damaged extraction socket up to 6m, and prevented additional bone grafting when placing implants. Through self-retention block bone method, extraction socket was grafted with block bone without any fixation device and no additional bone grafting was needed during implantation, overall simplifying the surgical procedure.

Graduated Yonsei Universtiy College of Dentistry Periodontology Resident of Yonsei University Dental Hospital