Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Long-Term Effects of Medical Implants
SJR: 0.133 SNIP: 0.491 CiteScore™: 0.89

ISSN Печать: 1050-6934
ISSN Онлайн: 1940-4379

Выпуски:
Том 29, 2019 Том 28, 2018 Том 27, 2017 Том 26, 2016 Том 25, 2015 Том 24, 2014 Том 23, 2013 Том 22, 2012 Том 21, 2011 Том 20, 2010 Том 19, 2009 Том 18, 2008 Том 17, 2007 Том 16, 2006 Том 15, 2005 Том 14, 2004 Том 13, 2003 Том 12, 2002 Том 11, 2001 Том 10, 2000

Journal of Long-Term Effects of Medical Implants

DOI: 10.1615/JLongTermEffMedImplants.v20.i4.80
pages 335-342

A Human Retrieval Study of Plasma-Sprayed Hydroxyapatite-Coated Plateau Root Form Implants After 2 Months to 13 Years in Function

Paulo G. Coelho
Department of Biomaterials, Hansjörg Wyss Department of Plastic Surgery, Mechanical and Aerospace Engineering, New York University, New York, NY
Estevam Augusto Bonfante
Unigranrio University, School of Heath Sciences, Duque De Caxias, Rio De Janeiro; Department of Prosthodontics and Periodontology, University of Sao Paulo Bauru School of Dentistry, Bauru, SP, Brazil, 17.012-901
Charles Marin
Department of Oral and Maxillofacial Surgery, Universidade Federal de Santa Catarina, Florianopolis
Rodrigo Granato
Department of Oral and Maxillofacial Surgery, Universidade Federal de Santa Catarina, Florianopolis
Gabriela Giro
Department of Oral Diagnosis and Surgery, Araraquara Dental School, Universidade Estadual Paulista (Unesp), Araraquara, Sao Paulo
Marcelo Suzuki
Deptartment of Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts

Краткое описание

Calcium phosphate-based bioactive ceramics in various physical and chemical formulations have been extensively utilized as biomaterials for bone regeneration/conduction. However, the determination of their in vivo temporal behavior from the short to long term in humans has been a challenge due to the lack of physical reference for morphologic and morphometric evaluation. The present study evaluated bone morphology and morphometry (bone-to-implant contact [BIC]) around plasma-sprayed hydroxyapatite (PSHA)-coated endosseous implants that were retrieved due to prosthetic reasons while successfully in function at the posterior region of the jaws from as early as 2 months to ∼13 years after a 6-month healing period after placement. Bone morphology was evaluated by light microscopy, and BIC was determined using computer software. Irrespective of the time in vivo, lamellar bone was observed in close contact with the implant PSHA-coated surface and between plateaus. BIC ranged from ∼35−95%, was highly directional, and Haversian-like osteonic morphology between plateaus was observed for most implants. The PSHA coating was present with little variation in thickness between the samples retrieved regardless of time in vivo.

Ключевые слова: dental implant, PSHA, in vivo, histology, retrieval, human