Guarded Finger Spring

Guarded finger spring (supported finger spring)
COMPONENTS 1. Coil
a) Internal diameter: 3-4mm.
b) Direction: It should be directed opposite to the direction of teeth movement so that when
activated the coil will be opened.
c) Location: The coil is located by drawing a line perpendicular on the line of occlusion from the midpoint of the mesiodistal width of the tooth to be moved, and about 2mm away from the palatal midline.
d) The coil is wound in a way that the active arm becomes upwards and the tag becomes downwards so that can be activated more easily.
2. Active arm
a) It begins from the coil and continues to the labial or buccal aspect of the tooth.
b) It should end with a non-traumatic coil and can have a C-shape well adapted to the labial surface of the tooth for better engagement of the tooth and to keep the tooth movement within the line of the arch.
c) For canine, the active arm has a crank located away from the coil, while for other teeth it has a small curve near to the coil.
d) When space is limited, the active arm is bent or a crank is added as a compensation for placing the coil more distally and this will keep the active force parallel to the line of occlusion.
3. Tag
a) In the simple finger spring: The tag forms a zigzag shape, 5-6 mm long, parallel and 2mm away from the palatal midline and elevated about 1mm from the palate for embedding in the acrylic.
b) In the guarded finger spring: The tag (which starts with a guard) begins, about 2mm away from the coil, with a small U- loop (2mm wide and 2mm long) and then extends below the active arm parallel to the line of the arch 2mm away from the teeth, and ends with a small L- shape. The guard prevents palatal displacement of the active arm and trauma to the mucosa.
‎● رابط الديمو لادم كلاسب مع شرح اسفل الفديو
• Video
● قائمه التشغيل خاصه بالتقويم الاسنان
• Video
●Simple finger spring
• Simple finger spring
modified buccal canine retractor ●
• modified buccal canine...
Buccal Canine Retractor (BCR) ●
• Buccal Canine Retracto...
Fitted Labial Arch ●
• Fitted Labial Arch
Z Spring Wire Bending Step By Step Demo ديمو مختبر تقويم الاسنان خطوه بخطوه مرحله ●
• Video
●قائمه تشغيل خاصه بالخطوات الطخم الجزئي المتحرك
www.youtube.com/watch?v=w0iO5...
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