Removal torque of bicortically stabilized RBM(resorbable blast media) pin implants in rabbit tibia / 대한치과보철학회지
The Journal of Korean Academy of Prosthodontics
; : 722-733, 2006.
Article
in English
| WPRIM (Western Pacific)
| ID: wpr-109148
Responsible library:
WPRO
ABSTRACT
STATEMENT OF PROBLEM:
The use of small diameter implants having less than 3 mm in diameter were restricted because of lack of bonding strength to bone.PURPOSE:
The purpose of this study was to observe how much resorbable blast media pin implants increase the binding force to the bone compared to machined transitional pin implants by measuring removal torque, and whether they can be used as final implants for replacement of small diameter teeth. MATERIAL ANDMETHOD:
Fifteen rabbits were used in this study. Two kinds of implants (resorbable blast media pin implants and machined transitional pin implants) were inserted in each tibia bicortically. After healing time of 2, 4 and 8 weeks, the removal torque values were recorded and the rabbits were sacrificed for histological analysis. Linear finite element method analyses were conducted to compare bicortical fixation with monocortical fixation. RESULT ANDCONCLUSION:
Within the limitation of this in vivo study, the following conclusions were drawn 1) The removal torque value of RBM pin implants showed statistically significant increase compared to machined pin implants at 2, 4, and 8 weeks respectively (p<0.05). 2) The removal torque value of RBM pin implants at 2, 4, and 8 weeks was increased statistically significantly with time (p<0.05). 3) Bicortical fixation showed better stress distribution compared with monocortical fixation in a linear finite element method analysis. 4) RBM pin implants are not recommended as transitional implants because they showed a lot of bone fracture in histologic specimens.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Tibia
/
Tooth
/
Torque
/
Fractures, Bone
Limits:
Animals
Language:
English
Journal:
The Journal of Korean Academy of Prosthodontics
Year:
2006
Document type:
Article