In this study, we have proposed a computer aided, and laser guided technique in which a calibrated positioning device is used to overcome this problem.►Supports up to 16 teams in the single and double elimination formats. Furthermore, the inadequacy of humans to resolve a point to a precision of 0.01 mm has made it difficult to place brackets accurately.

However, human errors have to be accounted for in these bonding techniques. In terms of accuracy of bracket placement, many reports indicated that Indirect bonding is superior because it is easier to place brackets on models than on teeth in vivo. In orthodontic literature, the advantages and disadvantages of direct and indirect bonding techniques have been discussed by many investigators. Kraus and Dellinger found great variations existed in tooth structure that can affect treatment results. Variation in tooth morphology also plays an important role in bracket placement. Meyer and Nelson showed that an error of 3 mm vertically in bracket placement on a premolar can result in 15° torque alteration and 0.04 mm alteration in/out adjustments. Thurow showed that two different vertical positions of a bracket on a tooth will cause two different buccolingual axial inclinations. More recently, Andrews introduced a bracket positioning technique of placing the vertical tie wings of the bracket parallel to the long axis of the clinical crown and then moving the bracket up or down until the middle of its slot base is at the same height as the midpoint of the clinical crown. Later Ricketts used marginal ridges as guidelines for the placement of bands and brackets. When bands were used originally, Angle thought the best position to place the bracket was at the center of the tooth. It is widely recognized that accurate bracket placement is of critical importance in the efficient application of biomechanics and in realizing the full potential of a preadjusted edgewise appliance.

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