V. Mortazavi , Mh. fathi ,
Volume 13, Issue 1 (6 2000)
Abstract
Characterization of bioceramics coating and evaluation of the influence of kind of coating on the implantation has been developed in recent years.Different bioceramics coating like calcium phosphate, hydroxyapatite, fluorapatite and bioglass were coated on dental and orthopedic implants. In-vitro and in-vivo experiments were done for evolution of implant success and reliability and study of factors, which may influence the results.Researches indicate that different bioceramic coating may affect the bone bonding mechanism.Biodegredable calcium phosphate coating can be resorbed and be replaced with bone tissues.Hydroxyapatite cause earlier stabilization of dental implant in surrounding bone (biological fixation) and reduce healing time. Bioglass can protect substrate and provide interfacial attachment to bone.
Sb. Moosavi , Mh. fathi , Gh. Feizi , V. Mortazavi ,
Volume 14, Issue 1 (9 2001)
Abstract
Bone osseointegration around dental implant can cause earlier stabilization and fixation of implant and reduce healing time. Hydroxyapatite coating can affect bone osseointegration and enhance its rates. The aim of this study was comparison of osseointegration between plasma sprayed hydroxyapatite coated and uncoated dental implants in cats. Four endodontic implants including, vitallium and two stainless steel with and without hydroxyapatite coating were prepared and placed in mandibular canines of 20 cats after completion of root canal treatment and osseous preparation. After a healing period of 4 months, investigation by scanning electron microscopy showed significant difference in ossointegration between coated and uncoated dental implants and average bone osseointegration of coated implants was more than uncoated implants.
