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Song, Jae Min; Shin, Sang Hun; Kim, Yong Deok; Lee, Jae Yeol; Baek, Young Jae; Yoon, Sang Yong; Kim, Hong Sung
International Journal of Oral Science/International journal of oral science, 06/2014, Letnik: 6, Številka: 2Journal Article
This study aimed to utilize micro-computed tomography (micro-CT) analysis to compare new bone formation in rat calvarial defects using chitosan/fibroin-hydroxyapatite (CFB-HAP) or collagen (Bio-Gide) membranes. Fifty-four (54) rats were studied. A circular bony defect (8 mm diameter) was formed in the centre of the calvaria using a trephine bur. The CFB-HAP membrane was prepared by thermally induced phase separation. In the experimental group (n= 18), the CFB-HAP membrane was used to cover the bony defect, and in the control group (n= 18), a resorbable collagen membrane (Bio-Gide) was used. In the negative control group (n= 18), no membrane was used. In each group, six animals were euthanized at 2, 4 and 8 weeks after surgery. The specimens were then analysed using micro-CT. There were significant differences in bone volume (BV) and bone mineral density (BMD) (P〈O.05) between the negative control group and the membrane groups. However, there were no significant differences between the CFB-HAP group and the collagen group. We concluded that the CFB-HAP membrane has significant potential as a guided bone regeneration (GBR) membrane.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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