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According to human kinetics, the movements of hip muscles in hip joint are performed by a series of muscles. For example, when hip is doing external rotation (30° with the hip extended, 50° with the hip flexed), it's using the gluteal muscles including iliopsoas (combination of the psoas major and the iliacus at their inferior ends). According to Meridian ...


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Although a root canal removes the pulp from the tooth (and the nerve along with it), that doesn't make the tooth immune to infection and the resulting pain. If the tooth or crown is broken or cracked, that can provide a pathway for bacteria to reinfect the tissues beneath and surrounding the tooth, as shown in the image below: As explained at the link: ...


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If it is just sparkling water, not other acids –aka flavours– added, then it is not that bad for your teeth. It all depends on how acidic, how low the pH level for the actual drink is and for how long it comes into contact with your teeth. The amount of time your teeth are in contact with it is typically low. Carbonic acid does not stick to your teeth. And ...


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From "Modern Food Microbiology" by James M. Jay, Martin J. Loessner and David A. Golde: The pH of non-carbonated water should be around neutrality, whereas that of carbonated water is typically between 3 and 4 - ideally at or below pH 3.5. Which means that drinking carbonated water lowers general pH in your mouth and when it gets lower than some critical ...


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