Mandibular ramus reconstruction using embedded self-loading distractor in a rabbit / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)1996.
Article
in Chinese
| WPRIM
| ID: wpr-539361
ABSTRACT
Objective:
To develop an automatic and continuous distraction osteogenesis technique by using totally embedded distractor of nickel titanium (Ni-Ti) shape-memory alloy for the reconstruction of mandibular ramus.Methods:
16 adult New Zealand rabbits were used in the experiment. Mandibular ramus and condyle on one side was removed to create a 1.5 cm segmental defect. A transport disc was created by "L" shape osteotomy at the end of the remnant ramus and Ni-Ti distractor was fixed and totally embedded in tissues. The rabbits were sacrificed 2 months after operation and the mandibles were harvested.The bone reconstruction were studied with radiographic and histological examination.Results:
2 months after operation all the animals were alive and mandible function kept well.The Ni-Ti distractors were self-activated and performed distraction osteogenesis automatically. The mandibular ramus achieved preliminary reconstruction. Histological examination showed bone regeneration in the distraction area.Conclusions:
Ni-Ti distractor can fulfill automatic and continuous distraction osteogenesis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
1996
Type:
Article
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