The 6 th National Scientific Dental Congress

& International Exhibition

한국치아은행, 자가치아뼈이식(시스템)강연

한국치아은행, 바이오투스서비스는 2013년 8월 1일부터 3일까지 베트남 하노이에서 개최되는 he 6 th National Scientific Dental Congress & International Exhibition> 초청되어 자가치아뼈이식(시스템)에 대한 강연을 진행 합니다.

이번 강연에는 대한치의학회 회장이자 한국자가치아뼈은행 회장인 단국대학교 김경욱 교수가 “Bone Graft using Autogenous Tooth Material” 이란 주제로 자가치아의 사용법, 유기질, 무기질의 특성 및 표면 특성에 대해, 한국치아은행 연구소장인 엄인웅 박사가 “AutoBT(DDM): Evidences of Repair and Restoration Capacities with Implants” 란 주제로 자가치아의 치조골 수복과 유지에 관한 과학적 증거에 대한 강연을 펼칩니다.

초록 : Bone Graft using Autogenous Tooth Material

After conducting exhaustive studies, we developed a sufficient basis for the use of extracted teeth as bone grafting material (AutoBT+). The scientific evidence of AutoBT+ was confirmed according to the article and a variety of clinical application.

Autogenous tooth bone block can be used for the restoration of esthetic contour, horizontal or vertical ridge augmentation because contour is maintained well compared to particulated bone. However, there are many disadvantages such as donor site problem, difficulty of block bone stabilization and fixation, slow revascularization rate and delayed healing. The authors used Root onBlock (Autogenous tooth bone block) for the extraction socket restoration and guided bone regeneration and obtained favorable clinical outcome.

Bone graft using Root onBlock (Autogenous tooth bone block) was performed at left mandibular 1st and 2nd molar area with forty seven year-old female patient. The authors will present a variety of case reports that show the use of Root onBlock (Autogenous tooth bone block) resulted in excellent bone healing based on an analysis of its inorganic components, surface structure, and histologic evidence of the healing process in harvested specimens after clinical application.

초록 : AutoBT(DDM): Evidences of Repair and Restoration Capacities with Implants 

Key words: AutoBT, DDM(Deminearalized Dentin Matrix), Repair, Restoration.

Immediate implant placement after extraction remains a great challenge in two points of view, one is alveolar preservation known as repair, second is restoration of function known as maintenance of repaired bone volume for a long time.

After tooth extraction, the residual alveolar bone generally provides limited bone volume because of ongoing, progressive periodontal disease. Healing events within extraction sockets  reduce the containments of blood clots with wall defects and consequently reduce the volume of healing bone over time. A reduction of about 50% in both horizontal and vertical directions has been observed over 12 months, with two-thirds of the reduction occurring in the first 3 months.

According to Prof. Kim et al, AutoBT(DDM) derived from patient's own extracted tooth, processed as graft materials with appropriate porosity contains organic and inorganic mineral components and is eliminating the risk of immune reaction or cross contaminations(Oral Surg Oral Med Oral Patho Oral Radiol Endod 2010 ; 109 :496-503).

According to Prof. Kim and Murata, the chemical composition of AutObt is very similar to that of alveolar bone. Approximately 90% of the organic material presented in dentin consists of collagen fibers, primarily typeI collagen, and these fibers play an important role in calcifications. The remaining organic components consist of noncollagenous proteins, carbohydrate, lipid, citrate, lactate, etc. Diverse bone growth factors, including bone morphogenetic protein, are known to be present in the protein fraction.

So that the capacity of AutoBT(DDM) as bone graft materials proved to be excellent and same as those of autogenous bone graft as well. The purpose of this presentation is to introduce clinical, radiographic and histologic evidences of alveolar bone repair capacity of AutoBT(DDM) at early stage within 9 months as well as restoration of implant function by sustaining repaired bone volume more than one year after final prosthesis.