Results 21 to 30 of about 27,368 (166)

Importance of periodontal ligament thickness [PDF]

Brazilian Oral Research, 2013
This study evaluated whether periodontal ligament (PL) thickness varied with root size and examined the possible influence of this variation on orthodontic mechanics. Measurements were taken of the maxillary left first molar in 54 male Wistar rats. Mean mesial and distal PL thicknesses were compared between the intermediate buccal and mesiobuccal roots
Cuoghi, Osmar Aparecido, Tondelli, Pedro Marcelo, Aiello, Carlos Alberto, Mendonça, Marcos Rogério de, da Costa, Silvano Cesar   +4 more
openaire   +7 more sources

EphrinB2 regulates osteogenic differentiation of periodontal ligament stem cells and alveolar bone defect regeneration in beagles

Journal of Tissue Engineering, 2019
EphrinB2, a membrane protein regulating bone homeostasis, has been demonstrated to induce osteogenic gene expression in periodontal ligament fibroblasts.
Penglai Wang, Wen Wang, Tengyu Geng, Yi Liu, Shaoyue Zhu, Zongxiang Liu, Changyong Yuan   +6 more
doaj   +1 more source

Vanishing Roots: First Case Report of Idiopathic Multiple Cervico–Apical External Root Resorption [PDF]

Journal of Clinical and Diagnostic Research, 2015
Idiopathic root resorption is a very rare phenomenon. Resorption in tooth is brought about by odontoclastic activity. Special mechanisms in the periodontal ligament exist to prevent mineralization of the periodontal ligament and these periodontal ...
Priyadarshini Choudhury, Rajat G. Panigrahi, Maragathavalli, Antarmayee Panigrahi, Padma Charan Patra   +4 more
doaj   +1 more source

Influence of periodontal ligament simulation on bond strength and fracture resistance of roots restored with fiber posts

Journal of Applied Oral Science, 2014
Objective: Considering that periodontal ligament simulation may influence the stress distribution over teeth restored with intraradicular retainers, this study aimed to assess the combined effect of mechanical cycling and periodontal ligament simulation ...
Ana Maria Estivalete MARCHIONATTI, Vinícius Felipe WANDSCHER, Juliana BROCH, César Dalmolin BERGOLI, Juliana MAIER, Luiz Felipe VALANDRO, Osvaldo Bazzan KAIZER   +6 more
doaj   +1 more source

Effect of different periodontal ligament simulating materials on the incidence of dentinal cracks during root canal preparation [PDF]

Journal of Dental Research, Dental Clinics, Dental Prospects, 2018
Background. The present study was undertaken to evaluate the incidence of dentinal cracks during root canal preparation with different periodontal ligament simulating materials in vitro. Methods. Seventy freshly extracted human mandibular first premolars
Ajita Rathi, Prateeksha Chowdhry, Mamta Kaushik, Pallavi Reddy, Roshni Roshni, Neha Mehra   +5 more
doaj   +1 more source

Histological changes during orthodontic tooth movement due to hyperbaric oxygen therapy

Dental Journal, 2016
Background: Mechanical force of orthodontics causes changes in periodontal ligament vascularization and blood flow, resulting in biochemical and cellular changes as well as changes in the contour of the alveolar bone and in the thickness of the ...
Arya Brahmanta, Sutjipto Sutjipto, Ida Bagus Narmada   +2 more
doaj   +1 more source

Immunohistochemical expression of heat shock proteins in the mouse periodontal tissues due to orthodontic mechanical stress*

European Journal of Medical Research, 2010
The histopathology of periodontal ligament of the mouse subjected to mechanical stress was studied. Immunohistochemical expressions of HSP27 and pHSP27 were examined.
Muraoka R, Nakano K, Kurihara S, Yamada K, Kawakami T   +4 more
doaj   +1 more source

Influence of Extracellular Matrix Components on the Differentiation of Periodontal Ligament Stem Cells in Collagen I Hydrogel

Cells, 2023
Regeneration of periodontal tissues requires an integrated approach to the restoration of the periodontal ligament, cementum, and alveolar bone surrounding the teeth.
Alexey A. Ivanov, Alla V. Kuznetsova, Olga P. Popova, Tamara I. Danilova, Andrey V. Latyshev, Oleg O. Yanushevich   +5 more
doaj   +1 more source

Mechanoresponsive Properties of the Periodontal Ligament

Journal of Dental Research, 2016
The periodontal ligament (PDL) functions as an enthesis, a connective tissue attachment that dissipates strains created by mechanical loading. Entheses are mechanoresponsive structures that rapidly adapt to changes in their mechanical loading; here we asked which features of the PDL are sensitive to such in vivo loading.
L, Huang, B, Liu, J Y, Cha, G, Yuan, M, Kelly, G, Singh, S, Hyman, J B, Brunski, J, Li, J A, Helms   +9 more
openaire   +3 more sources

Dental Stem Cells Harvested from Third Molars Combined with Bioactive Glass Can Induce Signs of Bone Formation In Vitro

eJournal of Oral Maxillofacial Research, 2018
Objectives: The aim of this study was to assess the interaction of a bioactive glass scaffold with cells derived from dental pulp, dental follicle and periodontal ligament. Material and Methods: Impacted third molars were surgically removed from three
Gregorio Raspini, Jan Wolff, Mika Helminen, Giovacchino Raspini, Mario Raspini, George K. Sándor   +4 more
doaj   +1 more source