Histology of the teeth II Dental pulp Cementum

Histology of the teeth II. Dental pulp, Cementum Dr. Gábor Gerber

enamel dentin crown Pulp horn cavum pulpae cementum canalis radicis foramen apicale root

Functions of the Pulp • • Dentin production Dentin nutrition Sensory Protective dentin cementum

predentin odontoblasts Weil-zone, str. subodontoblasticum Cell-rich zone pulpa Central pulp http: //www. anatomy. uq. edu. au/histology/contents/oral 3. %20 tooth/text. html

pulp dentin predentin odontoblasts

"neuro-vascular bundle". neuro-vascular bundle

Periferal and central pulp Walton R, Leonard L, Sharawy M, Gangarosa L. Oral Surg 1979; 48: 545.

Lymph vessle

Raschkow plexus

(from ART Cate: Oral Histology - Development, Structure, and Function; Mosby Year Book)

Változások a dentin állományában secunder dentin reparatív dentin (tercier) dentinsclerosis

Denticulus

Functions of cementum • Holding theeth • Protection • Occlusal plane acellular

Composition of cementum Cementum is composed of 50 -55% organic: type I and III collagen fibers and mucopolysaccharides 45 -50% of cementum is inorganic: hydroxyapatite calcium phosphate Thin at the CE junction (15 -60 mm), thicker apically (150 -200 mm). acellular

Cement-enamel junction 60% átfed 30% volaban 10% rés

Tomes-féle szemcsés réteg

cementum lig. periodontale Malassez- féle hámszigetek Sharpey rostok Alveolus

Incremental lines of Salter Cementoblast

Cementum-Dentin-Junctio (CDJ) (Hopewell-Smith hyalin layer) (1 -3 mm) The hyaline layer aids cementum in binding to the dentin. enamel matrix-like proteins are present in this layer S. P. Ho, M. Balooch, H. E. Goodis, G. W. Marshall, S. J. Marshall Journal of Biomedical Materials Research Volume 68 A, Issue 2, Article first published online: 18 DEC 2003

Normal pulp

Pulp infection

Pulp oedema

Pulp abscess reparatív dentin

Caries, pulpitis

open pulpitis

Pulp polyp

Reticularis pulpa degeneráció

Cementiculus

ankylosis

hypercementosis

Benignus cementoblastoma

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