Comparative push‐out test of dense HA implants and HA‐coated implants: Findings in a canine study

M Ogiso, M Yamamura, PT Kuo… - … Research: An Official …, 1998 - Wiley Online Library
Two types of hydroxyapatite (HA) implants have been developed: an HA‐coated implant and
a dense HA implant. For a longer in situ life span, the HA implant must remain chemically …

Microstructural changes in bone of HA‐coated implants

M Ogiso, Y Yamashita… - Journal of Biomedical …, 1998 - Wiley Online Library
In our previous comparative push‐out test of HA‐coated implants and dense HA implants in
dog bone, the ratio of the push‐out value of the HA‐coated implant to that of the dense HA …

Long‐term changes of hydroxyapatite‐coated dental implants

I Baltag, K Watanabe, H Kusakari… - … Research: An Official …, 2000 - Wiley Online Library
There are many controversies about the long‐term prognosis of hydroxyapatite (HA)‐coated
implants. Failure may be related to compositional and structural changes of the coating …

Experimental study of bone response to hydroxyapatite coating implants: bone-implant contact and removal torque test

TG Eom, GR Jeon, CM Jeong, YK Kim, SG Kim… - Oral Surgery, Oral …, 2012 - Elsevier
OBJECTIVE: The objective of this study was to evaluate the early osseointegration of
hydroxyapatite (HA)–coated implant. STUDY DESIGN: Twelve adult male miniature pigs …

Biomechanical and morphometric analysis of hydroxyapatite-coated implants with varying crystallinity

C Yu-Liang, D Lew, JB Park, JC Keller - Journal of oral and maxillofacial …, 1999 - Elsevier
Purpose: The level of crystallinity in hydroxyapatite (HA) is thought to be responsible for its
degradation in the physiologic milieu. The purpose of this study was to compare the in vivo …

Human histologic and histomorphometric analyses of hydroxyapatite-coated implants after 10 years of function: a case report.

P Trisi, DJ Keith, S Rocco - International Journal of Oral & …, 2005 - search.ebscohost.com
Purpose: No consensus exists on the long-term performance of hydroxyapatite (HA)
coatings on dental implants. The aim of this study was to evaluate the long-term stability of …

Histologic and histomorphometric evaluation of the bone response around a hydroxyapatite-coated implant retrieved after 15 years.

G Iezzi, S Orlandi, G Pecora… - International Journal of …, 2009 - search.ebscohost.com
Concerns have been raised about the degradation of hydroxyapatite (HA) coatings on
dental implants over time. It has been speculated that the resorption of HA could produce a …

Examination of human bone surrounded by a dense hydroxyapatite dental implant after long-term use.

M Ogiso, T Tabata, T Ichijo… - Journal of long-term effects …, 1992 - europepmc.org
A high-density hydroxyapatite (D-HAP) ceramic dental implant that had functioned for more
than 5 years was studied, using light and electron transmission microscopy, after it was …

Differences in microstructural characteristics of dense HA and HA coating

M Ogiso, Y Yamashita… - Journal of Biomedical …, 1998 - Wiley Online Library
Two implant types of hydroxyapatite (HA) currently are available for dental implants: dense
HA‐cemented titanium (Ti) and HA‐coated. It has been shown in previous reports that there …

The process of physical weakening and dissolution of the HA-coated implant in bone and soft tissue

M Ogiso, Y Yamashita… - Journal of dental …, 1998 - journals.sagepub.com
Hydroxyapatite (HA)-coated implants were developed to promote osseointegration of
titanium implants and to overcome the mechanical drawbacks of solid HA implants. Although …