Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
권호 표지

HISTOPATHOLOGIG CHANGES OF THE BONE ON DRILLING WITH DIFFERENT TEMPERATURE SALINE USING INTERNAL IRRIGATION

내부냉각(內部冷却) 골천공시(骨穿孔時) 냉각수(冷却水)의 온도(溫度)에 따른 골조직(骨組織)의 병리조직학적(病理組織學的) 변화(變化)

  • Park, Sang-Jun (Dept. of Oral and Maxillofacial Surgery, College of Dentistry, Pusan National University) ;
  • Kim, Tae-Kyu (Dept. of Oral and Maxillofacial Surgery, College of Dentistry, Pusan National University)
  • 박상준 (부산대학교 치과대학 악안면구강외과학교실) ;
  • 김태규 (부산대학교 치과대학 악안면구강외과학교실)
  • Published : 1990.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study was performed to evaluate the histopathologic changes of the rabbit tibial compact bone using internal irrigation with both cold and room - temperature saline on drilling. The medial surface of the rabbit tibia was drilled with specially designed pilot drill (2.0mm in diameter) at 300 rpm. When drilling, two different temperature salines were injected (experimental group I : $4^{\circ}C$ saline, experimental goup Ⅱ : room - temperature saline). And the control group was drilled without cooling agent. The three rabbits in each two experimental and control groups were sacrificed 1, 2, 4, and 8 weeks after. The bone tissues including the bony defects were fixed with 10% neurtal buffered formalin, decalcified with formic acid, embedded in paraplast, and sterile sectioned at 5-6${\mu}m$. And then tissue specimens were stained with H - E and observed under light microscope. The results were as follow : The experimental groups showed early bone repair than the control group at all intervals. They underwent the same course of bone repair until 4 weeks. But the experimental group I showed slightly better bone maturation than the experimental group Ⅱ at 8 weeks.

Keywords