Association of coronary sliding flap grafting subepithelial connective tissue without inflammation in periodontal recession

The periodontal recession is defined as the apical location of the gingival margin in relation to the cement-enamel, which appears predominantly in the buccal surface of the teeth and also to cause disharmony in aesthetics, can cause dentine sensitivity union.For the treatment of gingival recessions have been proposed techniques that can be grouped

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Online O-Ring Stress Prediction and Bolt Tightening Sequence Optimization Method for Solid Rocket Motor Assembly

Solid rocket motors (SRMs) are widely used as propulsion devices in the aerospace industry.The SRM nozzle and combustion chamber are connected with a plugged-in structure, which makes it difficult to use the existing technology to investigate the internal conditions of the Nutrition Drinks SRM during docking and assembly.The unknown deformation of

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