Results 301 to 310 of about 226,507 (332)

Srapping Hydroxyapatite Implants

Ophthalmic Surgery, Lasers and Imaging Retina, 1999
Abstract: Hydroxyapatite (HA) implants currently are most commonly wrapped in fresh unprocessed human donor sclera before implantation to facilitate entry into the orbital space and allow extraocular muscle attachment. Autologous temporalis fascia or autologous fascia lata are alternatives, but prolong surgery time and require a second operative site ...
D R, Jordan, S R, Klapper
openaire   +2 more sources

Thermoluminescence in hydroxyapatite

Medical Physics, 1979
A thermoluminescent (TL) glow peak has been shown to exist at 80°C in synthetic hydroxyapatite, in amorphous calcium phosphate, and in deproteinated rat bone mineral. This TL glow peak is excited by a thermal pretreatment at elevated temperature, followed by exposure to ultraviolet (UV) light. When measured on a cylic TL‐readout UV‐exposure basis after
M R, Chapman, A G, Miller, T G, Stoebe
openaire   +2 more sources

Hydroxyapatite Chromatography (HAC)

2023
Hydroxyapatite (HA) is a mixed-mode media that has been used extensively for the purification of proteins and DNA since the 1950s. Hydroxyapatite possesses a distinctive selectivity that may be applied in the purification of a wide range of biomolecules: immunoglobulins, alkaline proteins, acidic proteins, and DNA.
openaire   +2 more sources

Hydroxyapatite Prosthesis Extrusion

Otology & Neurotology, 2002
To examine the mechanism of prosthesis extrusion and evaluate preoperative and postoperative variables associated with extrusion of hydroxyapatite prostheses for ossicular reconstruction.Retrospective case review.Tertiary referral, university medical center.Patients undergoing ossiculoplasty with a hydroxyapatite prosthesis and having at least six ...
Jeffrey T, Vrabec, Karen, Stierman, James J, Grady   +2 more
openaire   +2 more sources

Chitosan–hydroxyapatite composites

Carbohydrate Polymers, 2013
Bone repair or regeneration is a common and complicated clinical problem in orthopedic surgery. The importance of natural polymers such as chitosan and its derivatives, and minerals such as calcium phosphates has grown significantly over the last two decades due to its renewable and biodegradable source, increasing the knowledge and functionality of ...
Luciano, Pighinelli, Magdalena, Kucharska   +1 more
openaire   +2 more sources

Calcium Hydroxyapatite Fillers

Facial Plastic Surgery, 2011
Calcium hydroxyapatite fillers have unique advantages over other fillers in regards to duration of action and volume of product required for augmentation, especially in the midface and lower face. In this article, we describe our experience with calcium hydroxyapatite fillers and compare them with other available filler products.
Kristina, Tansavatdi, Devinder S, Mangat
openaire   +2 more sources

Comparison of hydroxyapatite and hydroxyapatite tricalcium-phosphate coatings

The Journal of Arthroplasty, 2002
This study compared the effects of hydroxyapatite (HA) coating and biphasic HA/tricalcium-phosphate (HA/TCP) coating on the osseointegration of grit-blasted titanium-alloy implants. Each coated implant was compared with uncoated grit-blasted implants as well.
Tetsuya, Jinno, Dwight T, Davy, Victor M, Goldberg   +2 more
openaire   +2 more sources

Brazilian Hydroxyapatite Implant

Ophthalmic Plastic and Reconstructive Surgery, 2000
To evaluate a synthetic hydroxyapatite (HA) (manufactured in Brazil) in a rabbit model.Nine New Zealand white rabbits underwent enucleation of one eye followed by implantation of either a 12-mm Brazilian synthetic HA implant or a 12-mm BioEye, wrapped in polyglactin 910 mesh.
D R, Jordan, I, Hwang, T, McEachren, S, Brownstein, S, Gilberg, S, Grahovac, L, Mawn   +6 more
openaire   +2 more sources

Hydroxyapatite

2008
Alexandra Porter, Nelesh Patel, Serena Best   +2 more
  +7 more sources

Nanofiber generation of hydroxyapatite and fluor‐hydroxyapatite bioceramics

Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2005
AbstractIn this study, we produced hydroxyapatite (HA) and fluor‐hydroxyapatite (FHA) bioceramics as a novel geometrical form, the nanoscale fiber, for the biomedical applications. Based on the sol‐gel precursors of the apatites, an electrospinning technique was introduced to generate nanoscale fibers.
Hae-Won, Kim, Hyoun-Ee, Kim
openaire   +2 more sources