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Gingival and bone healing patterns with ridge preservation in beagle dogs

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The aim of this study was to evaluate the clinical and histologic findings of bone and gingival healing patterns with ridge preservation. The mandibular third premolars were extracted from beagle dogs and the dogs were euthanized after 12 weeks. The ridge preservation was performed and the animals were divided into 3 groups, including 1) Control: extraction; 2) surederm group: extraction+acellular dermal matrix (Surederm); 3) collatape group: extraction+collagen membrane (Collatape). Changes in the keratinized gingiva and bone volume of the extraction sockets were measured. In the surederm and collatape group, the decrease in keratinization was small and statistically insignificant. The surederm group had significantly greater dimensions of buccal gingiva as compared to the control and collatape groups at 4 weeks. The surederm group had greater dimensions of buccal gingiva as compared to the control group at 8 weeks. Histological observation showed that in the surederm group, a dark red-colored osteoid seam was observed around the alveolar bone. Osteoid seams were observed directly below and to the side of the socket. In the collatape group, a connective tissue band was observed at the site of contact with the alveolar bone. Both experimental groups had more alveolar bone volume than the control. The alveolar bone volume in the surederm group was significantly greater than that of the collatape group. The results suggest that the acellular dermal matrix results in better healing patterns than other methods.

Abstract

The aim of this study was to evaluate the clinical and histologic findings of bone and gingival healing patterns with ridge preservation. The mandibular third premolars were extracted from beagle dogs and the dogs were euthanized after 12 weeks. The ridge preservation was performed and the animals were divided into 3 groups, including 1) Control: extraction; 2) surederm group: extraction+acellular dermal matrix (Surederm); 3) collatape group: extraction+collagen membrane (Collatape). Changes in the keratinized gingiva and bone volume of the extraction sockets were measured. In the surederm and collatape group, the decrease in keratinization was small and statistically insignificant. The surederm group had significantly greater dimensions of buccal gingiva as compared to the control and collatape groups at 4 weeks. The surederm group had greater dimensions of buccal gingiva as compared to the control group at 8 weeks. Histological observation showed that in the surederm group, a dark red-colored osteoid seam was observed around the alveolar bone. Osteoid seams were observed directly below and to the side of the socket. In the collatape group, a connective tissue band was observed at the site of contact with the alveolar bone. Both experimental groups had more alveolar bone volume than the control. The alveolar bone volume in the surederm group was significantly greater than that of the collatape group. The results suggest that the acellular dermal matrix results in better healing patterns than other methods.

참고문헌 (31)

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