Osseointegration of Ceramics & Zirconia : A Review of Literature

세라믹과 지르코니아의 골유착에 관한 고찰

  • Song, Young-Gyun (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 송영균 (단국대학교 치과대학 치과보철학 교실)
  • Received : 2012.05.15
  • Accepted : 2012.09.25
  • Published : 2012.09.30

Abstract

For many years, ceramics have been used in fixed prosthodontics for achieving optimal esthetics. but, they have another use as well. Many studies today show ceramics can be used for biomaterials. In the beginning researchers made a start in the study of aluminium oxide and sapphire for biomaterial. The appearance of Zirconia began a new phase of research. Zirconia was introduced into implantology as an alternative to titanium, because of its white color, good mechanical properties and superior biocompatibility. But it is not easy to surface treatment in comparison with titanium. To overcome the limitation, interconnected porous bodies of zirconia were fabricated by sintering technique. And the technique of coating was developed. Therefore, some zirconia implants are currently available. It is thought that Research of biomaterials as a variety of puposes for the use of zirconia is looking very promising. The purpose of this paper reviews are to evaluation of zirconia as biomaterials.

세라믹은 오랜 기간 동안 치과용 수복재로 사용되어 왔다. 세라믹이 치과학에 도입되면서, 치과용 수복물은 심미성 면에서 눈부신 발전을 하게 되었다. 그러나 최근 세라믹은 수복재료뿐만 아니라 생체재료로서 주목을 받고 있다. 알루미늄 옥사이드와 사파이어등으로 시작된 연구는 지르코니아가 등장함에 따라 새로운 국면을 맞게 되었다. 특히 지르코니아는 색상이나, 기계적 성질, 생체친화성 등 여러 가지 장점 때문에 전통적으로 임플란트 고정체의 주재료이었던 티타늄의 대체 물질로 연구가 진행되고 있다. 지르코니아의 골반응은 매우 우수하지만, 표면 처리가 매우 어렵기 때문에 표면 처리된 티타늄보다는 뛰어나지 못하다는 내용들이 보고되고 있다. 이러한 한계점을 벗어나기 위해, 표면에 화학처리를 하거나 처음부터 다공성 형태를 갖도록 성형하는 방법과 다른 물질로 코팅처리하는 방법들이 소개되었고, 그 결과 수종의 지르코니아 임플란트가 현재 상용화된 상태이다. 앞으로 골이식재 구성성분으로서의 연구 등 다양한 목적의 생체재료로서 지르코니아의 활용에 대한 연구가 이루어질 것으로 사료된다. 이 논문에서는 생체재료로서의 지르코니아에 대한 연구와 앞으로의 발전가능성 등에 관한 문헌을 고찰할 것이다.

Keywords

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