Anchorage loss and distal teeth movement

الملخص EN

Aim : to develop the amount of canine retraction or space closure and the amount of mesial migration of anchorage.

Materials and Methods : data collected from treated patients attending College of Dentistry / Mosul University and from private clinics, in which a standardized method used for treatment work.

Sixty eight patients, 37 have Class I crowding and 31 have Class II malocclusion were divided into two groups : Growing and non–growing patients.

The data subjected to statistical analysis for description of variables.

Results : there were what we can call them "primary factors" affecting anchorage loss which is represented by the type of malocclusion.

In Class II malocclusion, greater anchorage loss than Class I crowding, and in the "secondary factors" effect of patients age, higher anchorage loss in growing subjects than non–growing patients was found.

Conclusion : the type of malocclusion is important in affecting anchorage loss which is considered a primary factor.

Also, higher anchorage loss in growing patients than non–growing patients was found.