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Effect of Stretching Stress on Gene Transcription Related to Early-phase Differentiation in Rat Periodontal Ligament Cells
Periodontal ligament Mechanical stress Homeostasis
2010/12/1
Mechanical stress such as occlusal and orthodontic loading has been suggested to induce a homeostatic and regenerative response in periodontal ligament (PDL), but the underlying mechanism remains to b...
Evaluation of fibronectin,type I collagen and TGF-ß expression by human periodontal ligament fibroblasts exposed to root end filling materials
Evaluation fibronectin type collagen TGF-ß expression human periodontal ligament fibroblasts filling materials
2009/12/7
Background and Aim: Several materials have been introduced for retrograde fillings, pulp capping and sealing root perforations, but their biological effect on vital tissues and cells is not clear. The...
Influence of root embedment material and periodontal ligament simulation on fracture resistance tests
Fracture resistance Periodontal ligament Tooth root Cementoenamel junction
2009/10/19
The aim of this study was to evaluate the influence of the embedment material and periodontal ligament simulation on fracture resistance of bovine teeth. Eighty bovine incisor teeth were randomized in...
Dental trauma involving root fracture and periodontal ligament injury:a 10-year retrospective study
Tooth injuries Periodontal ligament Comprehensive dental care Soft tissue injuries Facial injuries
2009/10/16
The purpose of this retrospective study was to analyze the cases of traumatic dental injuries involving root fracture and/or periodontal ligament injury (except avulsion) treated at the Discipline of ...
Calculation of Natural Frequencies of Teeth Supported with the Periodontal Ligament
Natural frequency Periodontal ligament Numerical analysis
2009/9/14
Natural frequencies and vibration modes of four kinds of teeth were calculated by using a mechanical model. The alveolar bone and the tooth were assumed as rigid bodies, while the periodontal ligament...
Induction of TGF-β and BMP-2 by Simvastatin in Human Periodontal Ligament Cells
simvastatin human periodontal ligament (HPDL) cells transforming growth factor-β1 (TGF-β1) bone morphogenetic protein-2 (BMP-2)
2009/5/21
Statins, which are highly effective cholesterol-lowering drugs, induce bone morphogenetic protein (BMP)-2 expression. However, the other growth factors except for BMP-2 and the effects of statins on p...
Effects of Cyclic Tension Force on Differentiation in Human Periodontal Ligament Cells
mechanical stress differentiation human periodontal ligament (HPDL) cell periostin Twist
2009/5/20
The periodontal ligament is exposed to mechanical stress such as occlusion, so periodontal ligament cells may have defenses against mechanical stress. We searched for the influence of mechanical stres...
Influence of cigarette smoke and nicotine on the morphological change of human periodontal ligament fibroblasts
cigarette smoke nicotine free radical HPLF inflammatory cytokine
2009/5/6
Cigarette smoking is a risk factor for periodontal disease. The effect of cigarette smoke and nicotine, a major component of tobacco, on the morphological changes of human periodontal ligament fibrobl...
Gene Expression Analysis of Chronically Inflamed and Healthy Human Periodontal Ligament Cells in vivo
Gene Expression Analysis Healthy Human Periodontal Ligament Cells
2009/4/2
Gene Expression Analysis of Chronically Inflamed and Healthy Human Periodontal Ligament Cells in vivo.
Remodelling of Collagen Fibers In the Periodontal Ligament and the Supra-Alveolar Region
Collagen Fibers Periodontal Ligament Supra-Alveolar Region
2009/3/8
Remodelling of Collagen Fibers In the Periodontal Ligament and the Supra-Alveolar Region.
Formation of new periodontal ligament around transplanted teeth with proliferating tissue in periodontal osseous defect under barrier membrane
transplanted teeth proliferating tissue barrier membrane
2009/3/3
The present study evaluated whether transplanted proliferating tissue in periodontal osseous defects can form new periodontal ligament. A periodontal osseous defect was created in dogs by removing a...
Periodontal regeneration following transplantation of proliferating tissue derived from periodontal ligament into class III furcation defects in dogs
Periodontal regeneration transplantation proliferating tissue periodontal ligament dogs
2009/3/2
The aim of this study was to evaluate the healing of class III furcation defects following transplantation of proliferating tissue derived from periodontal ligament (pPDL). Two weeks after removing ...
Stresses induced by edgewise appliances in the periodontal ligament — a finite element study
Periodontal ligament Stress analysis Finite element technique Edgewise appliances
2009/1/13
The quantification of stress in the periodontal ligament is an important concept, as stress in this tissue is transmitted to the alveolus, with subsequent bone remodelling and tooth movement. A nu...
Rapid Canine Distalization Using Distraction of the Periodontal Ligament: A Preliminary Clinical Validation of the Original Technique
Canine retraction Distraction osteogenesis Distractor
2008/12/11
The process of rapid canine distalization through the distraction of the periodontal ligament is similar to the process in the midpalatal suture during rapid palatal expansion. Rapid canine distaliz...
Changes in the Periodontal Ligament After Experimental Tooth Movement Using High and Low Continuous Forces in Beagle Dogs
Periodontal ligament Force magnitude Histology Orthodontics Tooth movement
2008/12/8
The aim of this study was to evaluate histological changes in the periodontal structures of beagle dogs after using high and low continuous forces during experimental tooth movement. An orthodonti...