Introduction
For an orthodontist in modern orthodontic practice the most important skill is bracket placement. According to Roth, ‘At the heart of every excellent treatment result lies a well-placed appliance, regardless of the appliance that is used. If the bracket is poorly positioned it will result in poorly positioned teeth and many more archwire adjustments will be required. Ultimately there will be an increase in treatment time or final occlusion which is less than ideal.1 Recently various techniques have been described for improving bracket positioning most of these are helpful in improving the vertical positioning of the bracket during bonding. 1 The orthodontic treatment aims to move the teeth into a stable, aesthetic, and functional occlusion with every crown and root positioned ideally in three dimensions. Orthodontists follow Andrews’ six keys to normal occlusion to achieve this optimal occlusion. Four of Andrew’s’ keys (molar relation, rotations, spaces and occlusal plane) are guided by crown position, and remaining two keys (mesiodistal angulations and buccolingual inclinations) depend on both crown and root position. Root position is important for mesiodistal angulation and buccolingual inclination because of variations in crown morphologies, inconsistencies in crown-root angulations, and a crown is short relative to root length. For successful orthodontic treatment accurate root position is integral part. 2 Some of current methods, which monitor root position are either inaccurate, exhibit poor resolution, or use relatively large amount of radiation. Good axial inclinations and adequate root parallelism with regular bone distribution between teeth is important to obtain and maintain a stable treatment results. 3 At mid treatment or end of the treatment the most common difficulty which is faced by the orthodontists is inaccurate root paralleling which need to reposition the bracket again and increases the duration of treatment.2 We have developed an auxiliary ‘T’ pin which is used initially for bonding procedure and the major advantage of this pin is this avoids the step of repositioning of the bracket and this device is all in one which is also use for horizontal and vertical positioning of bracket. 4, 5, 6, 7, 8, 9, 10, 11, 12
Fabrication
Armamentarium- (Figure 1)
Methodology
To fabricate ‘T’ PIN auxiliary 0.017 x 0.025 gauze S.S wire is used which is often available in any orthodontist’s instrument set.
This auxiliary has two arms one is called vertical arm (10mm) and other is called horizontal arm (4mm) (Figure 2)
After that S.S wire is cut into 10x4mm length. (Figure 3)
Application of soldering flux with probe (Figure 4)
Both the arms are then soldered in ‘T’ like fashion using Soldering flux and Soldering material by holding with Tweezer (Figure 5)
‘T’ should be snugly fit into horizontal slot (Figure 6)
And vertical arm should be in line with long axis (Figure 6)
Procedure
Place the ‘T’ pin into vertical slot of bracket make the adjustments according to dimentions of teeth.(Figure 6)
Take RVG along with ‘T’ pin with patient in accurate sitting position. (Figure 7)
Check the RVG (Figure 8)
And following these easy and few steps we can easily achieve accurate, early root paralleling, proper horizontal and vertical and axial accuracy during bracket positioning initially.
