203 359

Cited 7 times in

Bio-implant as a novel restoration for tooth loss

 Dong-Joon Lee  ;  Jong-Min Lee  ;  Eun-Jung Kim  ;  Takashi Takata  ;  Yoshihiro Abiko  ;  Teruo Okano  ;  David W. Green  ;  Masaki Shimono  ;  Han-Sung Jung 
 SCIENTIFIC REPORTS, Vol.7(1) : 7414, 2017 
Journal Title
Issue Date
A dental implant is used to replace a missing tooth. Fixing the implant in its natural position requires the engineering of a substantial amount of conformal bone growth inside the implant socket, osseointegration. However, this conventional implant attachment does not include the periodontal ligament (PDL), which has a fundamental role in cushioning high mechanical loads. As a result, tooth implants have a shorter lifetime than the natural tooth and have a high chance of infections. We have engineered a "bio-implant" that provides a living PDL connection for titanium implants. The bio-implant consists of a hydroxyapatite coated titanium screw, ensheathed in cell sheets made from immortalized human periodontal cells. Bio-implants were transplanted into the upper first molar region of a tooth-extraction mouse model. Within 8 weeks the bio-implant generated fibrous connective tissue, a localised blood vessel network and new bone growth fused into the alveolar bone socket. The study presents a bio-implant engineered with human cells, specialised for the root connection, and resulted in the partial reconstruction of a naturalised tooth attachment complex (periodontium), consisting of all the principal tissue types, cementum, PDL and alveolar bone.
Files in This Item:
T201702586.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Others (기타) > 1. Journal Papers
Yonsei Authors
Kim, Eun-Jung(김은정) ORCID logo https://orcid.org/0000-0002-9515-7590
Lee, Dong Joon(이동준) ORCID logo https://orcid.org/0000-0001-6532-9729
Lee, Jong Min(이종민) ORCID logo https://orcid.org/0000-0002-9466-7644
Jung, Han Sung(정한성) ORCID logo https://orcid.org/0000-0003-2795-531X
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.