By aging, pulp tissue will:
a- Decrease in collagen fibers.
b- Increase cellularity and vascularity.
c- Decrease in size. ***
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Apical pulp tissue:
The apical tissue of the pulp differs structurally from the coronary pulp tissue.
The pulp tissue of the crown consists mainly of cellular connective tissue and fewer collagen fibers; Apical pulp tissue is more fibrous and contains fewer cells.
Histochemically, large concentrations of glycogen are present in the apical pulp tissue which is compatible with an anaerobic environment.
In addition, apical pulp tissue contains higher concentrations of sulfated acid mucopolysaccharides.
Although the existence of these differences is known, their exact meaning has not been defined.
The fibrous tissue of the apical root canal is identical to that of the periodontal ligament. Macroscopically, the apical collagen tissue is whitish in color.
This fibrous structure apparently acts as a barrier against the apical progression of pulp inflammation.
However, it cannot be affirmed that there is a total inhibition of periapical inflammation in partial or total pulpitis.
The fibrous structure of the apical pulp maintains blood vessels and nerve endings that enter the pulp.
The pulp and the tooth receive a large number of blood vessels that originate in the medullary spaces of the bone surrounding the root apex.
Blood vessels pass between the bone trabeculate and through the periodontal ligament before entering the apical forages such as arteries or arterioles.
Blood vessels branch into the apical pulp tissue immediately in several major or central arteries.
These vessels are surrounded by large myelinic nerves that also divide into the pulp.
The intimate relationship of the vessels and nerve endings of the pulp and periodontal tissue provide the basis for the interrelation of pulp and periodontal diseases.
A degenerative or inflammatory process that affects the vessels and nerves of the periodontal ligament can also affect the vessels and nerves of the dental pulp.
Importance in the endodontic clinic of apical pulp tissue:
Pulp removal includes tearing the pulp tissue somewhere in the apical region of the main canal of the tooth.
Generally, the pulp tissue of accessory forages is not removed.
In fact, the plane of cut of the pulp with respect to the periodontal ligament is not completely under the control of the operator, especially when using the cableway.
The cut can occur anywhere in the root canal or beyond the foramen somewhere in the periodontal ligament.
When this last type of cut occurs, the heavy bleeding will be the anticipation of a painful periodontitis.
---------------------
Apical pulp tissue:
The apical tissue of the pulp differs structurally from the coronary pulp tissue.
The pulp tissue of the crown consists mainly of cellular connective tissue and fewer collagen fibers; Apical pulp tissue is more fibrous and contains fewer cells.
Histochemically, large concentrations of glycogen are present in the apical pulp tissue which is compatible with an anaerobic environment.
In addition, apical pulp tissue contains higher concentrations of sulfated acid mucopolysaccharides.
Although the existence of these differences is known, their exact meaning has not been defined.
The fibrous tissue of the apical root canal is identical to that of the periodontal ligament. Macroscopically, the apical collagen tissue is whitish in color.
This fibrous structure apparently acts as a barrier against the apical progression of pulp inflammation.
However, it cannot be affirmed that there is a total inhibition of periapical inflammation in partial or total pulpitis.
The fibrous structure of the apical pulp maintains blood vessels and nerve endings that enter the pulp.
The pulp and the tooth receive a large number of blood vessels that originate in the medullary spaces of the bone surrounding the root apex.
Blood vessels pass between the bone trabeculate and through the periodontal ligament before entering the apical forages such as arteries or arterioles.
Blood vessels branch into the apical pulp tissue immediately in several major or central arteries.
These vessels are surrounded by large myelinic nerves that also divide into the pulp.
The intimate relationship of the vessels and nerve endings of the pulp and periodontal tissue provide the basis for the interrelation of pulp and periodontal diseases.
A degenerative or inflammatory process that affects the vessels and nerves of the periodontal ligament can also affect the vessels and nerves of the dental pulp.
Importance in the endodontic clinic of apical pulp tissue:
Pulp removal includes tearing the pulp tissue somewhere in the apical region of the main canal of the tooth.
Generally, the pulp tissue of accessory forages is not removed.
In fact, the plane of cut of the pulp with respect to the periodontal ligament is not completely under the control of the operator, especially when using the cableway.
The cut can occur anywhere in the root canal or beyond the foramen somewhere in the periodontal ligament.
When this last type of cut occurs, the heavy bleeding will be the anticipation of a painful periodontitis.
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Endodontics