title: [Quantitative analysis on guided bone regeneration-membrane technique with Bio-Oss in dental implantation].
abstract: OBJECTIVE
  To measure the absorbed quantity of Bio-Oss by using dental CT scanning and measuring the variety of the volume of Bio-Oss.
  
  
  METHODS
  Nine patients were preformed stage I surgery of dental implants and guided bone regeneration-membrane technique (GBR) simultaneously. These patients were scanned by dental CT at the end of 1-week, 3-month and 6-month after operation, respectively. The measurements of the varied volume of Bio-Oss with dental CT scanning were conducted. Finally the remaining quantity of Bio-Oss in the patients' jaw bone was obtained.
  
  
  RESULTS
  The results suggested that the remaining quantity of Bio-Oss was 32.72% ±18.35% at the end of 3-month post operatively and 15.75% ±16.73% at the end of 6-month postoperatively.
  
  
  CONCLUSIONS
  It is concluded that there is a decrease in the remaining quantity of Bio-Oss in GBR along with the increase of time. As a kind of osteoconductive material, Bio-Oss can be absorbed and replaced by newly formed bone. Using dental CT scanning to measure the volume of Bio-Oss in man is predictable.
authors.affiliation: Department of Stomatology, Jingan District Central Hospital/Huashan Hospital, Fudan University, Jingan Branch, Shanghai 200040, China. wangguoshi@yahoo.com.cn
authors.forename: Guo-shi
authors.initials: GS
authors.lastname: Wang
authors.forename: Shao-wei
authors.initials: SW
authors.lastname: Li
authors.forename: Lu
authors.initials: L
authors.lastname: Cai
mesh_terms: D001861:Bone Regeneration; D018786:Bone Substitutes; D003757:Dental Implantation; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D006801:Humans; D008297:Male; D008567:Membranes, Artificial; D008903:Minerals
chemical_list: C077540:Bio-Oss; D018786:Bone Substitutes; D015921:Dental Implants; D008567:Membranes, Artificial; D008903:Minerals