Cellular turnover in epithelial rests of Malassez in the periodontal ligament of the mouse molar

2012 ◽  
Vol 120 (6) ◽  
pp. 484-494 ◽  
Author(s):  
Kyoko Oka ◽  
Masakazu Morokuma ◽  
Kyoko Imanaka-Yoshida ◽  
Yoshihiko Sawa ◽  
Keitaro Isokawa ◽  
...  
Keyword(s):  
Periodontal Ligament ◽  
Epithelial Rests Of Malassez ◽  
Cellular Turnover

scholarly journals Epithelial rests of Malassez: from latent cells to active participation in orthodontic movement

2017 ◽  
Vol 22 (3) ◽  
pp. 119-125
Author(s):  
Bianca Silva e Silva ◽  
Nathalia Carolina Fernandes Fagundes ◽  
Bárbara Catarina Lima Nogueira ◽  
José Valladares Neto ◽  
David Normando ◽  
...  
Keyword(s):  
Literature Review ◽  
Functional Activity ◽  
Periodontal Ligament ◽  
Potential Functions ◽  
Functional Structure ◽  
Tissue Structure ◽  
Periodontal Tissue ◽  
Orthodontic Movement ◽  
Epithelial Rests Of Malassez ◽  
Cellular Debris

ABSTRACT Introduction: The epithelial rests of Malassez (ERM) represent a group of cells in the periodontal ligament classically consisting of latent or quiescent structures associated with pathological processes. However, recent evidence shows that these structures cannot be considered only as cellular debris. The ERM is a major tissue structure, with functions in maintaining the homeostasis of periodontal tissue, including the maintenance of orthodontic movement. Objective: The present literature review aims at presenting the potential functions of ERM, with emphasis on orthodontic movement and the functional structure of the periodontium. Conclusion: ERM cells have a functional activity in modulation of orthodontic movement, trough their potential for differentiation, maintenance functions and the capacity of repairing periodontium.

scholarly journals Diagnosis of alveolodental ankylosis in unerupted canines: one of the answers to why the canine does not come

2020 ◽  
Vol 25 (6) ◽  
pp. 19-25
Author(s):  
Alberto Consolaro ◽  
Omar Hadaya ◽  
Mauricio de Almeida Cardoso
Keyword(s):  
Periodontal Ligament ◽  
Root Surface ◽  
Occlusal Plane ◽  
Impacted Teeth ◽  
Regular Shape ◽  
Epithelial Rests Of Malassez ◽  
Time Point

ABSTRACT Introduction: Teeth frequently fail to erupt and situations arise that prevent the canines from reaching the occlusal plane. Objective: Discourse about the three situations in which the canine does not reach the occlusal plane, and remains unerupted; and at the same time, point how to make a safe diagnosis of alveolodental ankylosis - one of the three causes -, based on tomography. Conclusions: Ankylosis occurs in impacted teeth by atrophy of the periodontal ligament, including the epithelial rests of Malassez. The tomographic signs of alveolodental ankylosis in unerupted canines are the interruption of hypodense periodontal space, discontinuity of the lamina dura and its continuity with the root surface, which gradually loses its regular shape.

ISOLATION AND SERUM-FREE CULTURE OF EPITHELIAL CELLS DERIVED FROM EPITHELIAL RESTS OF MALASSEZ IN HUMAN PERIODONTAL LIGAMENT

2000 ◽  
Vol 36 (8) ◽  
pp. 548 ◽  
Author(s):  
TAKENORI YAMANAKA ◽  
AKIHIKO SAKAMOTO ◽  
YOSHIHARU TANAKA ◽  
YAN ZHANG ◽  
YASUTAKA HAYASHIDO ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Periodontal Ligament ◽  
Serum Free ◽  
Epithelial Rests Of Malassez

Surgical Endodontics in Dogs: A Review

2005 ◽  
Vol 22 (3) ◽  
pp. 148-156 ◽  
Author(s):  
Philippe Hennet ◽  
Nicolas Girard
Keyword(s):  
Periodontal Ligament ◽  
Alveolar Bone ◽  
Apical Region ◽  
Treatment Alternative ◽  
Physical Chemical ◽  
Epithelial Rests Of Malassez ◽  
Root Sheath ◽  
Bacterial Stimulation ◽  
Stimulation Of ◽  
Inflammatory Tissue

Surgical endodontic therapy (apical surgery) is a treatment alternative aimed at removing periapical inflammatory tissue followed by apical resection and retro-filling of the root canal. These procedures are performed through a trans-osseous approach. Terminology pertinent to this article include: apical (periapical) curettage – a surgical procedure to remove diseased tissue from the alveolar bone in the apical region of a pulpless tooth; apical cyst – a cyst in bone at the apex of a pulpless tooth. It is believed that such cysts arise after the death of the pulp from noxious physical, chemical, or bacterial stimulation of epithelial rests of Malassez; apicoectomy (apical resection) – amputation of the apical portion of the root and removal of soft tissue in the bone; epithelial rests of Malassez – cords, strands, or clusters of ectodermal cells in the periodontal ligament (or sometimes alveolar bone) derived from remnants of Hertwig's epithelial root sheath. These cells frequently begin proliferating when inflammation occurs in the periodontal ligament and are believed to be responsible for the genesis of the epithelial lining of apical cysts.

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