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Peri-implant bone reactions around immediately loaded conical implants with different prosthetic suprastructures: histological and histomorphometrical study on minipigs

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Abstract

The aim of this study was to evaluate peri-implant bone reactions around immediately loaded conical implants with metal and acrylic resin prosthetic restorations. Five splinted conical implants were inserted in each hemimandible of six minipigs at the alveolar crest level. Ten implants were inserted in each minipig. All the implants were immediately loaded. The implants were divided into a group with an acrylic resin prosthetic restoration and into another group with a metal prosthetic restoration. No postoperative complications or deaths of the minipigs occurred. All minipigs were killed after 3 months. No implant was lost. A total of 60 implants were retrieved and processed to obtain thin ground sections. Histology and histomorphometry showed the presence of compact, mature bone around all the implants. Bone was in close contact with the implant surface starting from the first or second implant threads. A high quantity of mineralized bone was present around immediately loaded conical, root form implants. No differences in the peri-implant bone response were found in the groups with different prosthetic reconstructions.

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Acknowledgments

This work was partially supported by the Ministry of University, Education and Research (M.I.U.R.), Rome, Italy. The help of Prof. F. San Roman, Madrid, Spain, is gratefully acknowledged.

Conflicts of interest

The authors declare that they have no conflicts of interest.

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Authors and Affiliations

  1. Dental School, University of Chieti–Pescara, Via F. Sciucchi 63, 66100, Chieti, Italy

    Bartolomeo Assenza, Antonio Scarano, Vittoria Perrotti, Adriano Piattelli & Giovanna Iezzi

  2. Dental School “Sapienza”, University of Rome, Rome, Italy

    Iole Vozza, Alessandro Quaranta & Manlio Quaranta

Authors
  1. Bartolomeo Assenza
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  2. Antonio Scarano
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  3. Vittoria Perrotti
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  4. Iole Vozza
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  5. Alessandro Quaranta
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  6. Manlio Quaranta
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  7. Adriano Piattelli
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  8. Giovanna Iezzi
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Correspondence to Adriano Piattelli.

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Assenza, B., Scarano, A., Perrotti, V. et al. Peri-implant bone reactions around immediately loaded conical implants with different prosthetic suprastructures: histological and histomorphometrical study on minipigs. Clin Oral Invest 14, 285–290 (2010). https://doi.org/10.1007/s00784-009-0289-x

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  • DOI: https://doi.org/10.1007/s00784-009-0289-x

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