|
KMID : 0354619940060020367
|
|
Journal Dankook Dental Research Institute
1994 Volume.6 No. 2 p.367 ~ p.380
|
|
|
The histomorphometric study about bone formation in the vent of IMZ implant on the normal human mandible
|
|
배성호
이일규/이종헌/천재식
|
|
|
Abstract
|
|
|
The purpose of this study was to observe bone formation histomorphometrically, and bone, and peripheral tissue attached to IMZ implants which were 3.3mm in diameter and 10.0mm in length, being emdedded in the normal human mandible. After 1, 3 and
9
momth IMZ implants explanted by trephine bur were fixed with 10% neutral formalin, dehydrated, and embedded with Spurr low viscosity. After the specimen was cut by 500㎛ with slow diamond wheel saw and these were grinded up to 100 ㎛ with
grinder,
stained with toluidine blue and Villanueva's method, and examined with light microscope in IMZ vent.
@ES The obtained results were as follows.
@ES 1. Histopathologic findings of 1 month showed slight new bone formation attached to implant, which was mainly surrounded by fibrous collagenous tissue.
2. Toluidine blue of 3 month showed strong positivity of outer lamellar pattern and osteocytes in high density bone and central direction of trabecular bone, but weak positivity of inner lamellar pattern. 9 month showed increased lamellar
pattern
around IMZ implants, more denser in bone adjacent to IMZ implant.
3. Villanueva of 3 month showed IMZ partially surrounded by lowdensity bone as light red and brown, connective tissue, osteocytes, and lacuna as red, 9 month showed IMZ implant mainly surounded by high density bone as heavy brown, and increased
osteocytes in lacuna.
4. IMZ implant width of 1 month was 37.5±2.0%, bone width 8.5±10%, soft tissue width 54.0±4.0%. IMZ implant width of 3 month was 38.0±3.0%, bone width 43.2±2.0%, soft tissue width 19.2±4.0%. IMZ implant width of 9 month was 37.0±3.0%,
bone
width
56.0±2.0% and soft tissue width 7.0±2.0%.
5. A direct bone contact of 1 month was 12.3±2.0%, and a direct soft tissue contact was 87.8±5.0%. A direct bone contact of 3 month was 46.9±4.0%, and a direct soft tissue contact was 53.1±4.0%. A direct bone contact of 9 month was
56.6±5.1%,
and
a direct soft tissue contact was 43.4±5.1%.
6. There was active bone formation in close proximity to IMZ implant from 1 to 3 month. The change from soft tissue to bone tissue in central portion of the vent was more active than on the interface of IMZ implant.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|