Does the orthodontic tooth movement vary from initially after activation to till the activation stage ends or it remains same throughout activation?
Regards mam
Orthodontic tooth movement occurs in various phases: initial, log,lag etc. So, the activation level is different. we need to activate once in 21-25 days: active tooth movement occurs followed by hyalinization, bone remodelling etc.
Dear doctor
By activation, you mean interrrupted force employed to cause orthodontic tooth movement. Various modalities are employed, but most commonly, if elastics are used, any brands used loses close to 50% of force in initial 24hrs, has also been proved by studies at mediator levels. On the other hand, continuous NiTi springs that produce a more consistent force(150g), are better for space closure.
Lee KJ1, Park YC, Yu HS, Choi SH, Yoo YJ.Effects of continuous and interrupted orthodontic force on interleukin-1beta and prostaglandin E2 production in gingival crevicular fluid. Am J Orthod Dentofacial Orthop. 2004 Feb;125(2):168-77.
Regards mam
Fixed orthodontic treatment uses light, continuous forces; not interrupted force.
Dear doctor
The forces applied by elastics or screws which have to be reactivated are not similar to conitnuous forces by NiTi springs
Perhaps you will find some useful tips herein
Chapter The biology of orthodontic tooth movement and the impact of ...
Yes the orthodontic tooth movement will vary according to the amount of force, type of force, and the reaction of tissues. You may find the following article useful which describes the effect of different forces on orthodontic tooth movement
Nanda A, Chen PJ, Mehta S, et al. The effect of differential force system and minimal surgical intervention on orthodontic tooth movement and root resorption [published online ahead of print, 2020 Dec 10]. Eur J Orthod. 2020;cjaa065. doi:10.1093/ejo/cjaa065
- Badges
- Science topic
- Similar topics
- Social Psychology
- Attitude