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Immediate loading of implants used for orthodontic anchorage
1Aarhus University, Deparment of Orthodontics, Vennelyst Boulevard, 8000 Aarhus C, Denmark; Private Practice, Via Sartori, 13, 43100 Parma, Italy.
Clinical Orthodontics and Research
|February 13, 2001
Summary
Immediately loaded screws showed good osseointegration in monkeys, increasing over time and independent of bone type. These screws can be recommended as anchorage units when conventional methods fail.
Area of Science:
- Orthodontics
- Biomaterials Science
- Dental Implantology
Background:
- Immediate loading of orthodontic anchorage screws is a developing area.
- Understanding the healing and osseointegration of these screws is crucial for clinical success.
Purpose of the Study:
- To describe the healing process around immediately loaded titanium vanadium screws.
- To evaluate the influence of bone type, loading force, and observation time on osseointegration.
Main Methods:
- Titanium vanadium screws were inserted into macaca fasicularis monkeys.
- Screws were immediately loaded with orthodontic springs.
- Undecalcified serial sections were analyzed after 1, 2, 4, and 6 months.
Main Results:
- Osseointegration was observed around most screws, increasing with time.
- Bone integration was independent of bone type (trabecular or cortical).
- Two screws were lost due to immediate instability.
Conclusions:
- The studied screws demonstrate reliable osseointegration for orthodontic anchorage.
- They can be recommended as an alternative anchorage option when conventional methods are insufficient.