{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/43c9df8da5154df2b699cea8d86e2890\" frameborder=\"0\" width=\"1366\" height=\"1024\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1024,"width":1366,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1024,"thumbnail_width":1366,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/43c9df8da5154df2b699cea8d86e2890-00001.gif","duration":1725.2099999999969,"title":"Dentin","description":"In this video, I discuss the structure and composition of dentin, the hard tissue that forms the bulk of the tooth. I explain how dentin is formed, its chemical properties, and its different types, including primary, secondary, and tertiary dentin. I also cover the role of dentin in protecting the enamel and preventing tooth fractures. No action is requested from the viewers, but this information is important for understanding tooth anatomy and dental health."}