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KMID : 0354619930050010271
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Journal Dankook Dental Research Institute
1993 Volume.5 No. 1 p.271 ~ p.282
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A Scanning Electron Microscopic Study about Osseointegration of IMZ Implant Inserted in the Normal Human Mandible
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Abstract
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The purpose of this study was to observed morphologically osseointegration and change about bone and peripheral tissue in IMZ implants on 3 and 9 month in normal human mandible.
4 IMZ implants with 3.3mm in diameter and 10mm in length were implanted in normal human mandible. For scanning electron microscopic study in 3 and 9 month, IMZs were explanted by trephine bur, washed with normal saline, fixed with 2.5%
glutaraldehyde
for 3 days, postfixed with 1% OsO4, dehydrated gradually with ethyl alchol, changed with isoamyl acetate, and dried with CO2 critical point dryer. The specimens were gold-plated and examined with scanning electronmicroscope.
@ES The obtained results were as follows.
@EN 1. There were moderately mineralized trabecular in vent of IMZ, irregular directions of collagen fibers, fibroblasts, osteocytes with prominent process surrounded by moderately mineralized bone in scanning electron microscopic study after 3
month of
post operation tissues.
2. Scanning electron microscopic study of 3 month showed rarely inflammatory cell infiltration among IMZ, bone tissue, and collagen fiber, disclosing many blood vessels in less mineralized osteoid containing RBCs, fibrin, and rare leukocytes.
3. Scanning electron microscopic study of 9 month showed mainly mineralized, irregular trabecular attached to vent of IMZ, and osteocytes with promint processes in lacuna surrounded by mineralized bone.
4. Scanning electronmicroscopic study of 9 month showed rarely inflammatory cell infiltration between bone and IMZ, and more decreased number of blood vessel than that of 3 month.
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KEYWORD
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