Mam it is said that the dentinal tubules extends form pulpal surface to the dentinoenamel junction and now how can less tubules present in secondary dentin and more tubules present in primary dentin....mam please reply
The tubules of the dentin converge from primary to the secondary dentin. The number of tubules will be the same but due to convergence more tubules are present because of this convergence.
The best thing about your videos is that sir, you mention the functions or reasons behind the structure to be that way with the aid of the diagrams and ground sections. However, the duration of the video is quite longer so please make a short summarized video of each hard tissue with an overlook through all subtopics like classification functions and formative cycle if possible. JazakAllahu khaira 🌸 May Allah SWT bless you with goodness, success and calmness Ameen 🌟
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Sir what are tubules ? like are they circular or like long tubes ? They're made of ? If they're present , do they cover the whole dentin or present in some places ?
Tubules they are small microscopic hollow tubes created by the odontoblastic processes. They are present in the entire dentin. In the upcoming sessions when we will do dentin formation and histology you will be more clear about this. Hope this answer will help. Kind Regards,
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Ten Cate's Oral Histology: Development, Structure, and Function 9th Edition and Oral anatomy, embryology, and histology by B. K. B. Berkovitz 5th edition
Thx great job. But I’m a little bit confused on how to categorize sclerotic dentin in respect to these 3 types of dentin? Or is it another name for tertiary dentin?
Sclerotic and tertiary dentin are different. Sclerotic dentin is the term used for dentin deposited inside the dentinal tubules mostly found in secondary and tertiary dentin regions. Hope this answer helps.
@@DentalEducationHub thx for coming back to me so promptly! What I understand from you is that sclerotic dentin can be found in secondary dentin region when it’s formed bc of aging and also in tertiary dentin region when it’s formed in response to a stimulus. Am I getting it right? But also you mentioned in the video that the mineral to organic ratio in secondary dentin is the same as primary dentin so what is it that induce mineral deposition resulting in sclerotic dentin in secondary dentin region (since there’s no outer stimulus)?
@@damnthatshistinks aging is itself a stimulus for sclerotic dentin formation. Second reason is dental caries or attrition in which on the pulpal surface there is formation of tertiary dentin and with in dentin matrix the tubules are occluded or blocked by formation of sclerotic dentin
Masha Allah... great job
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Mam it is said that the dentinal tubules extends form pulpal surface to the dentinoenamel junction and now how can less tubules present in secondary dentin and more tubules present in primary dentin....mam please reply
Mam please reply I have my exam tommorow
The tubules of the dentin converge from primary to the secondary dentin. The number of tubules will be the same but due to convergence more tubules are present because of this convergence.
@@KAMALINISIRINGIcheck my reply you will understand more when you view my lecture on dentinogenesis
Tq so much mam you ar the best by the way you reply that fast 🥰
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What is odontoblast ?
The cells that form the dentin
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Thank you. Your video are helping me to prepare for exam
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It’s useful for preparing exam and thank you so much!
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The best thing about your videos is that sir, you mention the functions or reasons behind the structure to be that way with the aid of the diagrams and ground sections. However, the duration of the video is quite longer so please make a short summarized video of each hard tissue with an overlook through all subtopics like classification functions and formative cycle if possible.
JazakAllahu khaira 🌸
May Allah SWT bless you with goodness, success and calmness Ameen 🌟
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facebook.com/dentaleducationhub/
@@DentalEducationHub your most welcome sir. Besides okay ill do it
Sir, your all videos are really helpful. It's a request, please also upload lectures on amelogenesis as soon as possible
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Sir what are tubules ? like are they circular or like long tubes ? They're made of ? If they're present , do they cover the whole dentin or present in some places ?
Tubules they are small microscopic hollow tubes created by the odontoblastic processes. They are present in the entire dentin.
In the upcoming sessions when we will do dentin formation and histology you will be more clear about this.
Hope this answer will help.
Kind Regards,
@@DentalEducationHub thank you Sir ✨
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Thank you so much ♥️sir...You made DAOH easy for every 1st year students..lots of love 💚
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great job mam keep it up awesomr explaination
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you explain very well
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such a helpful video. thank you so much
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I need references for this objective
Can you rephrase your question again ?
I need Book about this objective for my report , your presentation is perfect can you suggest books or articles ?! please
Ten Cate's Oral Histology: Development, Structure, and Function 9th Edition and
Oral anatomy, embryology, and histology by B. K. B. Berkovitz 5th edition
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Thx great job. But I’m a little bit confused on how to categorize sclerotic dentin in respect to these 3 types of dentin? Or is it another name for tertiary dentin?
Sclerotic and tertiary dentin are different. Sclerotic dentin is the term used for dentin deposited inside the dentinal tubules mostly found in secondary and tertiary dentin regions. Hope this answer helps.
@@DentalEducationHub thx for coming back to me so promptly! What I understand from you is that sclerotic dentin can be found in secondary dentin region when it’s formed bc of aging and also in tertiary dentin region when it’s formed in response to a stimulus. Am I getting it right? But also you mentioned in the video that the mineral to organic ratio in secondary dentin is the same as primary dentin so what is it that induce mineral deposition resulting in sclerotic dentin in secondary dentin region (since there’s no outer stimulus)?
@@damnthatshistinks aging is itself a stimulus for sclerotic dentin formation. Second reason is dental caries or attrition in which on the pulpal surface there is formation of tertiary dentin and with in dentin matrix the tubules are occluded or blocked by formation of sclerotic dentin
@@DentalEducationHub it’s all clear now. Thx again & God bless 🙏
@@damnthatshistinks thank you 🙂