Jin-Young Park

Vertical augmentation can be technically challenging for clinicians. Various surgical techniques have been introduced including guided bone regeneration, block bone grafting and distraction osteogenesis. Allogenic bone blocks can be advantageous due to ease of surgical manipulation and no need for harvesting of autologous bone that can lead to morbitity. The aim of this presentation is to introduce the technique of using allogenic bone block combined with particulate bone substitute and resorbable collagen membrane. A 68 year old patient was presented with ailing implants in the upper left and lower left quadrants. Explantation of the ailing implants resulted in significant vertical bone defects in both areas. Regeneration of the vertical defects was performed using an irradiated allogenic bone block which was fixated at the surgical site using a fixation screw. Deproteinized bovine bone mineral was compacted around the fixated block bone, which were covered using a noncrosslinked collagen membrane. New implants were placed after 7 months of healing. Trephine biopsies revealed successful new bone formation and material integration. Vertical ridge augmentation (>5mm) could be achieved using the allogenic bone block to accommodate standard sized dental implants. No adverse events occurred using the allograft block bone graft in both the maxilla and the mandible. The irradiated allogenic cortico-cancellous bone used in combination with xenogeneic particles and resorbable collagen membrane can be a viable solution for vertical augmentation of an atrophic alveolar ridge.

I graduated from the University of Newcastle Upon Tyne in the UK to receive my undergraduate degree in Dentistry. Since then, I moved back home to South Korea to receive further training in periodontology and implantology as well as a PhD at Yonsei University, Seoul, where I am now working as a Clinical assistant professor. Apart from being a specialist in periodontal surgery I am a researcher and an educator. I am a member of the ITI and have taken up on the role as a director of the YonseiPerio study club, and I am also a member of the Osteology Box team. My clinical area of interest is in both soft and hard tissue regeneration for reconstruction of the alveolar ridge. My research encompasses the area of my clinical interests as well as systemic diseases and oral microbiome.