Dentin Types | Reparative Dentin | Sclerotic Dentin | Tertiary Dentin

Hi everyone welcome to Dento Jan you know the cells that form dentin don't call blast cells they keep forming dentin through out life they are not like a mild blast cells which once form enamel and then they go away so enamel once lost cannot be formed again but dentin can be formed again and

again by these blast cells because they are present in the pulp so based on the different times the dentin is formed there can be different types of dentin which is also known as classification of dentin it can come as a short note and long question for your exam so what to write what can be viva

questions and questions so you will get to know everything about types of dentin today in this video so before starting the video quickly subscribe to Dento Jan if you haven't done it yet then quickly subscribe and also give this video a like Let me keep making such interesting and informative videos for you. This video can be a little long

because we are going to get answers to many questions, short notes and long questions in it. So to watch till and so odonto blast cells make our dentin which forms the first layer. This close to dentine forms the nominal junction which is less minor and it has big collagen fibers. So this first

layer is called mental dentin. After that odonto blast releases that I need to make better dentin which is more minor and it forms a little better quality dentin around the pulp. So this dentin which is formed later around the pulp is now known as pulpal dentin. So these two dentins are formed when the root completion has

not happened. So before root completion, so this is called the primary dentin. Primary dentin before root Completion Now after the root is completed now the blast tries to make another layer of dentin slowly and slowly near the pulp border it to protect the pulp so that nothing penetrates into the pulp it makes