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WHIP SPRING FOR THE TREATMENT OF LOCALIZED TOOTH MALPOSITION IN MIXED DENTITION

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Abstract

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Ä¡°¡ ½Ã±âÀû, °æÁ¦ÀûÀ¸·Î ºñÇÕ¸®ÀûÀÎ Áõ·Ê¿¡ À־, whip springÀº ÁÁÀº ´ë¾ÈÀÌ µÉ ¼ö ÀÖ
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There are various types of localized tooth malpositions in the mixed dentition, such as
abnormal tooth axis, anterior crossbite of some incisors, impaction, midline diastema,
ectopic eruption, and so forth. We, Pediatric Dentists, have usually used removable
appliances for these instances. But, removable orthodontic appliances, as is known, have
marked limitations in some situations, for example, severe rotation, intrusion and
extrusion, root torque, closure of large diastema, traction of impacted tooth, etc. In such
cases, Whip spring, combined with fixed or removable appliance, can increase utilities of
removable orthodontic appliances.
The authors have applied whip springs to some cases showing localized positional and
arrangement problems, and have witnessed the results as follows ;
1. The refined and elaborate control of direction and magnitude of force by the
operator, and accurate compliance of the patients were requisite for the treatment with
it.
2. It showed special effectiveness for derotation of incisors. Although it yields some
benefit for root movement, the special consideration for incomplete roots in this age
bracket was required.
3. In the localized malalignment cases in mixed dentition, uncurable with traditional
removable appliances but practically unrealistic with fixed appliance therapy, the whip
spring was thought to be a good alternative.

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