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Conventional procedures for the preparation of abutment teeth often involve major removal of tooth structure. However, when the abutment teeth are sound, conventional full coverage procedures seem quite radical. The resin-bonded fixed partial dentures have gained immense popularity in recent years as they are more conservative, esthetic, economic and easily fabricated. However debonding is considered the most common cause of failure of resin bonded prosthesis. Improvement have been suggested for resin bonded prosthesis techniques that are related to both clinical and laboratory phases to...

Mutation breeding is one of the innovative methods in plant breeding. Hugo de Vries introduced the term mutation in the late 19th century. Since the induction of artificial transmutation of gene by X-rays on Drosophila by Muller in 1927, the field of mutation breeding has gained improvement. Cowpea is an important food legume of the tropics and subtropics.Improvement of cowpea by conventional breeding techniques is time taking and involves constraints such as small flower, difficult crossing, poor seed setting and less number of seeds per pod. Mutation breeding in recent times as an effective...