In the present investigation, comparative studies have been done, to find the effect of air pollutants generated from the exhaust of industries and automobiles on the chrorophyll content of leaves. The leaves samples of Azadirachta indica, Nerium oleander, Mangifera indica and­ Dalbergia sissoo were collected from areas with potentially higher and lower levels of air pollution Photosynthetic pigments chlorophyll a, chlorophyll b and carotenoids were quantified. A reduction in the photosynthetic pigments of plant leaves growing in higher polluted site as compared to non or less polluted ones.

Iron complexed with dimethylacetamide (DMAc) was incorporated in variable ultra low concentration in polyimide (PI) at it precursor stage to obtain nanoscopically manipulated metallopolyimide films. The in situ generation of these nanophase structures, their stability within PI matrix, and interaction with its chains was studied using UV-vis spectroscopy. AFM topographic image shows the presence of rock-shaped nano particles, which is produced by the formation of polyamic acid salt of Fe-DMAc complex. Unique fluorescence and improved hydrolytic stability of these metallopolyimide films were due to the formation of nanophase structures. Different photo-physical properties of developed films are attributed to size quantization effect. POLYM. ENG. SCI.,

The relationship between pulpal and periodontal disease was first described by Simring and Goldberg in 1964. Pathological agents pass between the pulp and periodontium, thereby creating the endoperio lesion. Lateral canals play an important role in the spread of infection from pulp to periodontium. This article reports a case of a 38-year-old patient with a combined endoperio lesion. Bone density is a key factor in predicting bone healing. Application of Hounsfield unit to determine the healing pattern of bone. How to cite this article Hegde MN, Hegde ND, Shrivastava D. Application of Hounsfield Unit to evaluate Prognosis of a Rehabilitated Tooth with Grade Three Mobility. World J Dent 2012;3(1):109-111.

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