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Biologic stability of plasma ion-implanted miniscrews

 Young-Chae Cho ; Jung-Yul Cha ; Hyung-Seog Yu ; Han-Sung Jung ; Young-Chel Park ; Chung-Ju Hwang 
 Korean Journal of Orthodontics (대한치과교정학회지), Vol.43(3) : 120~126, 2013 
Journal Title
 Korean Journal of Orthodontics (대한치과교정학회지) 
Issue Date
OBJECTIVE: To gain basic information regarding the biologic stability of plasma ion-implanted miniscrews and their potential clinical applications. METHODS: Sixteen plasma ion-implanted and 16 sandblasted and acid-etched (SLA) miniscrews were bilaterally inserted in the mandibles of 4 beagles (2 miniscrews of each type per quadrant). Then, 250 - 300 gm of force from Ni-Ti coil springs was applied for 2 different periods: 12 weeks on one side and 3 weeks contralaterally. Thereafter, the animals were sacrificed and mandibular specimens including the miniscrews were collected. The insertion torque and mobility were compared between the groups. The bone-implant contact and bone volume ratio were calculated within 800 µm of the miniscrews and compared between the loading periods. The number of osteoblasts was also quantified. The measurements were expressed as percentages and analyzed by independent t-tests (p < 0.05). RESULTS: No significant differences in any of the analyzed parameters were noted between the groups. CONCLUSIONS: The preliminary findings indicate that plasma ion-implanted miniscrews have similar biologic characteristics to SLA miniscrews in terms of insertion torque, mobility, bone-implant contact rate, and bone volume rate.
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Oral Biology
1. 연구논문 > 2. College of Dentistry > Dept. of Orthodontics
Yonsei Authors
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