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Collagen membranes at immediate implants: a histomorphometric study in dogs |
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| Authors: | Marco Caneva Daniele Botticelli Luiz Antonio Salata Sérgio Luis Scombatti Souza Leandro Carvalho Cardoso Niklaus Peter Lang |
| Affiliation: | 1. UNESP ‐ Faculty of Dentistry of Ara?atuba, S?o Paulo State University, SP, Brazil;2. ARDEC, Ariminum Odontologica, Rimini, Italy;3. USP ‐ Faculty of Dentistry of Ribeir?o Preto, University of S?o Paulo, S?o Paulo, Brazil;4. Goiás Dentistry Improvement School, EAP Goiás, Goiás, Brazil;5. Prince Philip Dental Hospital, Comprehensive Dental Care, The University of Hong Kong, Hong Kong SAR, China |
| Abstract: | 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. To cite this article: Caneva M, Botticelli D, Salata LA, Souza SLS, Carvalho Cardoso L, Lang NP. Collagen membranes at immediate implants: a histomorphometric study in dogs. Clin. Oral Impl. Res. 21 , 2010; 891–897. doi: 10.1111/j.1600‐0501.2010.01946.x |
| Keywords: | animal study bone healing collagen membrane extraction socket implant dentistry osseointegration regeneration ridge preservation |