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The most widely accepted concept of sustainability as defined during the Bruntland Commission in 1987 is "meeting the needs of the present generation without compromising the ability of future generations to meet their own needs". The goals of providing sustainable features in the design and construction of transportation corridor in an Urban Environment are to minimise impacts on the environmental resources, consumption of material resources, energy consumption, encourage the use of new and innovative approaches, enhance the historic, scenic and aesthetic context and integrate into the...

Numerous techniques are available for the purpose of molar distalization, appropriate case selection, appliance fabrication and thorough understanding of biomechanics involved can help to achieve the desire treatment result.Traditionally, the arch length deficiency has been calculated anterior to the first molar because molar distalization was assumed to be nearly impossible. However by using the space posterior to the second molar 14 permanent teeth can be well aligned in alveolar bone.