1 research outputs found
Comparison of transverse dental changes induced by the palatally applied Frog appliance and buccally applied Karad's integrated distalizing system
Objective: To compare the transverse dental changes induced by the
palatally applied Frog appliance and buccally applied Karad's integrated
distalizing system (KIDS). Methods: We evaluated the pre- and post
distalization orthodontic models of 39 patients, including 19 treated
using the Frog appliance, which is palatally positioned (Frog group),
and 20 treated using KIDS, which is buccally positioned (KIDS group).
Changes in intermolar and interpremolar distances and the amount of
maxillary premolar and molar rotation were evaluated on model
photocopies. Wilcoxon and Mann-Whitney U tests were used for statistical
evaluations. A p-value of < 0.05 was considered statistically
significant. Results: Significant distopalatal rotation of premolars and
distobuccal rotation of molars were observed in Frog group (p < 0.05),
while significant distopalatal rotation of molars (p < 0.05), with no
significant changes in premolars, was observed in KIDS group. The amount
of second premolar and first molar rotation was significantly different
between the two groups (p < 0.05 and p < 0.001, respectively).
Furthermore, expansion in the region of the first molars and second
premolars was significantly greater in KIDS group than in Frog group (p
< 0.001 for both). Conclusions: Our results suggest that the type and
amount of first molar rotation and expansion vary with the design of the
distalization appliance used