SUMMARY:Irregular root configurations which often challenge the requirements of successful root canal treatments are always misleading doctors to incorrect clinical judgments and treatment planning. In this article we describe a rare case of CBCT C-shaped mandibular premolar with a huge area of invagination measuring 6 mm ´ 3 mm, which we termed a "radicular rift valley" from a 76-year-old man. Considering the complex process of differential diagnosis, the overall status of disease condition and the will of the patient we proposed five treatment plans and finally conservatively chose plan B composed of both RCT and periapical scaling. A related literature review is also added into this article to describe the whole situation of root invagination, to stress the importance of the vigilance of diagnosis and to provide reference views for future similar diseases.
Financial support for the development of cultural industry is the policy guidance of Chinese governments at all levels recently, while the cultural financial support policy appeared under the circumstances. The purpose of the policy is to accelerate the development of cultural enterprises by using financial instruments, through speeding up the matching process of financial capital and cultural enterprises' financial service requirements. This paper analyzes the background of the policy which supports the development of cultural industry, investigates the present situation of how financial institutions support cultural industry, and finally promotes the feasible path for financial institutions to engaging in cultural industry by financial support policies.
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