PMID- 10148567
OWN - NLM
STAT- MEDLINE
DCOM- 19930826
LR  - 20131121
IS  - 1050-6934 (Print)
IS  - 1050-6934 (Linking)
VI  - 3
IP  - 1
DP  - 1993
TI  - Tissue response of apatite-filled resin cement and titanium-reinforced apatite 
      dental implants in dogs.
PG  - 69-79
AB  - Abutment and root portion divided two-piece dental implants were designed to 
      modify the one-piece dense hydroxyapatite (D-HAP) implant. The initial placement 
      of the root portion endosseously ensured an aseptic environment and physical 
      stability for the implant during the bone healing period. The outer D-HAP shell 
      of the root portion was fortified by an inner titanium cylinder and cemented with 
      an adhesive resin cement containing 4-methacryloyoxyethyl trimellitate anhydride 
      (4-META) and reinforced by fine apatite filler. Upon attaining integration of the 
      bone and implant, the abutment was screwed and fixed into the screw hole of the 
      root portion. The tissue response of both the apatite-filled resin cement and 
      root portion of the two-piece implant was studied by animal canine experiments. 
      Light and electron microscopic examination of specimens taken from experimental 
      animal tissue showed bone contacted directly not only the exposed apatite filler 
      at the surface of the apatite-filled resin cement, but also the resin portion. 
      These findings of direct bone contact suggested that the tissue response of 
      apatite-filled resin cement was approximately similar to the usual D-HAP. Because 
      most of the surface of the outer D-HAP shell of the root portion came in contact 
      with bone, it prevented the deposition of contamination on the D-HAP surface 
      during the manufacturing procedures of the root portion.
FAU - Ogiso, M
AU  - Ogiso M
AD  - Faculty of Dentistry, Tokyo Medical and Dental University, Japan.
FAU - Tabata, T
AU  - Tabata T
FAU - Nakabayashi, N
AU  - Nakabayashi N
FAU - Yamashita, Y
AU  - Yamashita Y
FAU - Borgese, D
AU  - Borgese D
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Long Term Eff Med Implants
JT  - Journal of long-term effects of medical implants
JID - 9110830
RN  - 0 (Dental Cements)
RN  - 0 (Dental Implants)
RN  - 0 (Hydroxyapatites)
RN  - 0 (Methacrylates)
RN  - D1JT611TNE (Titanium)
MH  - Animals
MH  - Calcification, Physiologic
MH  - *Dental Cements
MH  - *Dental Implants
MH  - Dogs
MH  - Evaluation Studies as Topic
MH  - Hydroxyapatites
MH  - Materials Testing
MH  - Methacrylates
MH  - Microscopy
MH  - Microscopy, Electron
MH  - Titanium
MH  - Wound Healing
EDAT- 1992/12/09 00:00
MHDA- 1992/12/09 00:01
CRDT- 1992/12/09 00:00
PHST- 1992/12/09 00:00 [pubmed]
PHST- 1992/12/09 00:01 [medline]
PHST- 1992/12/09 00:00 [entrez]
PST - ppublish
SO  - J Long Term Eff Med Implants. 1993;3(1):69-79.