Effects on the new bone formation by different distraction rate during mandibular distraction osteogenesis in goats
- VernacularTitle:不同牵张速率对山羊下颌骨牵张成骨中新骨形成的影响
- Author:
Jie LONG
;
Yubo FAN
;
Weidong TIAN
- Publication Type:Journal Article
- Keywords:
Goat;
Mandible;
Distraction osteogenesis;
Distraction rate
- From:
Journal of Practical Stomatology
2001;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effects on the new bone formation by different distraction rate during mandibular distraction osteogenesis in goats.Methods: The right side mandibles of twelve goats were distracted after corticortomy,and all the animals were divided into 3 groups randomly, the first group were distracted with 0.8 mm/day, the second group were distracted with 1.6 mm/day, the third group were distracted with 2.0 mm/day, and the left side mandible of 4 goats from above groups were selected randomly as the control group.Then the new generation bone after distraction with different rate were studied by bone density examination and three point bending test.Results: The bone density value of the 0.8 mm/day group were higher than the other two experimental groups; the results of three point bending test showed that the biomechanical strength of the new generation bone in 0.8 mm/day group was higher than the other two experimental groups.Conclusion:0.8 mm/day may be the best distraction rate in mandibular distraction osteogenesis.
