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Forced-eruption time for palatally impacted canines treated with and without ostectomy-decortication technique
The Angle Orthodontist
|March 20, 2019
Summary
The ostectomy-decortication technique significantly speeds up forced eruption for palatally impacted canines, reducing treatment time by 3.2 times. Canine position impacts eruption speed when using this technique.
Area of Science:
- Dentistry
- Orthodontics
Background:
- Palatally impacted canines present a common orthodontic challenge.
- Treatment often involves surgical exposure and orthodontic traction (forced eruption).
- The ostectomy-decortication technique is a surgical adjunct used to facilitate eruption.
Purpose of the Study:
- To compare forced-eruption times for palatally impacted canines treated with and without the ostectomy-decortication technique.
- To assess the influence of pretreatment position and angle on forced-eruption time.
Main Methods:
- A retrospective study of 151 palatally impacted canines in 118 patients.
- Patients were divided into groups treated with (n=72) and without (n=79) the ostectomy-decortication technique.
- Orthopantomogram radiographs were analyzed for canine angle and position; eruption time was measured from traction initiation to final arch placement.
Main Results:
- Forced eruption time was significantly shorter with the ostectomy-decortication technique (6.6 months) compared to conventional treatment (21.0 months).
- Pretreatment canine position significantly influenced forced-eruption time in the ostectomy-decortication group, but not in the control group.
Conclusions:
- The ostectomy-decortication technique accelerates forced eruption of palatally impacted canines by 3.2 times.
- Treatment duration is influenced by initial canine position when employing the ostectomy-decortication technique.
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