Clinical oral implants research · 2010
Collagen membranes at immediate implants: a histomorphometric study in dogs.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Caneva Marco, Botticelli Daniele, Salata Luiz Antonio, Scombatti Souza Sérgio Luis, Carvalho Cardoso Leandro, Lang Niklaus Peter
Аннотация
AIM: To evaluate the influence of resorbable membranes on hard tissue alterations and osseointegration at implants placed into extraction sockets in a dog model.
MATERIAL AND METHODS: In the mandibular premolar region, implants were installed immediately into the extraction sockets of six Labrador dogs. Collagen-resorbable membranes were placed at the test sites, while the control sites were left uncovered. Implants were intended to heal in a submerged mode. After 4 months of healing, the animals were sacrificed, and ground sections were obtained for histomorphometric evaluation.
RESULTS: After 4 months of healing, a control implant was not integrated (n=5). Both at the test and at the control sites, bone resorption occurred. While the most coronal bone-to-implant contact was similar between the test and the control sites, the alveolar bone crest outline was maintained to a higher degree at the buccal aspect of the test sites (loss: 1.7 mm) compared with the control sites (loss: 2.2 mm).
CONCLUSIONS: The use of collagen-resorbable membranes at implants immediately placed into extraction sockets contributed to a partial (23%) preservation of the buccal outline of the alveolar process.
MATERIAL AND METHODS: In the mandibular premolar region, implants were installed immediately into the extraction sockets of six Labrador dogs. Collagen-resorbable membranes were placed at the test sites, while the control sites were left uncovered. Implants were intended to heal in a submerged mode. After 4 months of healing, the animals were sacrificed, and ground sections were obtained for histomorphometric evaluation.
RESULTS: After 4 months of healing, a control implant was not integrated (n=5). Both at the test and at the control sites, bone resorption occurred. While the most coronal bone-to-implant contact was similar between the test and the control sites, the alveolar bone crest outline was maintained to a higher degree at the buccal aspect of the test sites (loss: 1.7 mm) compared with the control sites (loss: 2.2 mm).
CONCLUSIONS: The use of collagen-resorbable membranes at implants immediately placed into extraction sockets contributed to a partial (23%) preservation of the buccal outline of the alveolar process.
Предметные рубрики MeSH
Absorbable ImplantsAlveolar Bone LossAlveolar ProcessAnimalsBiocompatible MaterialsCollagenDental Implantation, EndosseousDental ImplantsDental MaterialsDental Prosthesis DesignDogsMandibleMembranes, ArtificialModels, AnimalOsseointegrationSurgical FlapsSurgical Wound DehiscenceTitaniumTooth SocketWound HealingZirconium