keyword
MENU ▼
Read by QxMD icon Read
search

Periodontal ligament

keyword
https://www.readbyqxmd.com/read/28937901/pulp-calcification-in-traumatized-primary-teeth-classification-clinical-and-radiographic-aspects
#1
Anna Carolina Volpi Mello-Moura, Ana Maria Antunes Santos, Gabriela Azevedo Vasconcelos Cunha Bonini, Cristina Giovannetti Del Conte Zardetto, Cacio Moura-Netto, Marcia Turolla Wanderley
OBJECTIVE: The aim of this study was to standardize the nomenclature of pulp alteration to pulp calcification (PC) and to classify it according to type, quantity and location, as well as relate it to clinical and radiographic features. STUDY DESIGN: The dental records of 946 patients from the Research and Clinical Center for Dental Trauma in Primary Teeth were studied. Two hundred and fifty PC-traumatized upper deciduous incisors were detected. RESULTS: According to radiographic analysis of the records, 62...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28932154/malpositioned-canine-treatment-with-autotransplantation-and-laser
#2
Serap Keskin Tunc, Mehmet Savas Kayasan, Esma Ozeroglu, Cennet Neslihan Eroglu
Children and young adults often have tooth loss due to congenital tooth deficiency, trauma, or caries. Autotransplantation has many benefits. The transplanted tooth can be moved orthodontically, maintains alveolar bone growth potential during eruption, and functional periodontal ligament function also permits tooth eruption, allows the defected areas to be filled with the bones; gingival contour is much more successful than the one obtained with prosthesis. In this paper, treatment steps and follow-up results of autotransplantation case supported with biostimulation are mentioned...
July 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28914595/evaluation-of-gingival-crevicular-fluid-and-peri-implant-sulcus-fluid-levels-of-periostin-a-preliminary-report
#3
Abdullah C Akman, Sezen Buyukozdemir Askin, Guliz N Guncu, Rahime M Nohutcu
BACKGROUND: Periostin, a protein present in the alveolar bone and periodontal ligament, related to response to external forces. The aims of this study are; to detect the levels of periostin in peri-implant sulcular fluid (PISF) and gingival crevicular fluid (GCF), and to evaluate the relationship between periostin, ICTP (Pyridinoline cross-linked carboxyterminal telopeptide of type 1 collagen) and CTX (C-terminal crosslinked telopeptide of type 1 collagen) levels and clinical inflammatory symptoms and duration of functional loading...
September 15, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28914392/alginate-hyaluronic-acid-hydrogel-delivery-system-characteristics-regulate-the-differentiation-of-periodontal-ligament-stem-cells-toward-chondrogenic-lineage
#4
Sahar Ansari, Ivana M Diniz, Chider Chen, Tara Aghaloo, Benjamin M Wu, Songtao Shi, Alireza Moshaverinia
Cartilage tissue regeneration often presents a challenging clinical situation. Recently, it has been shown that Periodontal Ligament Stem Cells (PDLSCs) possess high chondrogenic differentiation capacity. In this study, we developed a stem cell delivery system based on alginate/hyaluronic acid (HA) loaded with TGF-β1 ligand, encapsulating PDLSCs; and investigated the chondrogenic differentiation of encapsulated cells in alginate/HA hydrogel microspheres in vitro and in vivo. The results showed that PDLSCs, as well as human bone marrow mesenchymal stem cells (hBMMSCs), as the positive control, were stained positive for both toluidine blue and alcian blue staining, while exhibiting high levels of gene expression related to chondrogenesis (Col II, Aggrecan and Sox-9), as assessed via qPCR...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28912533/oral-fibroblasts-modulate-the-macrophage-response-to-bacterial-challenge
#5
Rinat Tzach-Nahman, Rizan Nashef, Omer Fleissig, Aharon Palmon, Lior Shapira, Asaf Wilensky, Gabriel Nussbaum
Tissue damage in chronic periodontal disease is driven by the host response to a dysbiotic microbiota, and not by bacteria directly. Among chronic inflammatory diseases of the oral cavity, inflammation and tissue damage around dental implants (peri-implantitis) is emerging as a major clinical challenge, since it is more severe and less responsive to treatment compared to inflammation around natural teeth. We tested whether oral fibroblasts from the periodontal ligament (PDLF), which are present around natural teeth but not around dental implants, actively regulate inflammatory responses to bacterial stimulation...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28904312/adhesion-of-human-periodontal-ligament-cells-by-three-dimensional-culture-to-the-sterilized-root-surface-of-extracted-human-teeth
#6
Chieko Mino, Toshio Iwata, Toshitsugu Kawata
Residual periodontal ligament (PDL) and cement mass on the roots of extracted teeth are factors that considerably affect tooth transplantation. Therefore, when normal extracted teeth are used for autologous transplantation, it is necessary to regenerate the PDL of the root surface. Here we describe a method to examine human PDL cell adhesion on sterilized root surfaces. Sample teeth were extracted during orthodontic treatment. PDL cells were obtained from healthy periodontal tissue explants from teeth extracted for orthodontic reasons...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28902637/development-of-fish-collagen-bioactive-glass-chitosan-composite-nanofibers-as-a-gtr-gbr-membrane-for-inducing-periodontal-tissue-regeneration
#7
Tian Zhou, Xin Liu, Baiyan Sui, Chao Liu, Xiumei Mo, Jiao Sun
The development of a guided tissue or bone regeneration (GTR/GBR) membrane with excellent performance has been a major challenge in the biomedical field. The present study was designed to prepare a biomimetic electrospun fish collagen/bioactive glass/chitosan (Col/BG/CS) composite nanofiber membrane and determine its structure, mechanical property, antibacterial activity, and biological effects on human periodontal ligament cells (HPDLCs). The effects of this composite membrane on inducing periodontal tissue regeneration were evaluated using a dog class II furcation defect model...
September 13, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28901402/carbon-monoxide-releasing-molecule-suppresses-inflammatory-and-osteoclastogenic-cytokines-in-nicotine-and-lipopolysaccharide-stimulated-human-periodontal-ligament-cells-via-the-heme-oxygenase-1-pathway
#8
Ling Song, Jingyuan Li, Xiao Yuan, Wen Liu, Zhenggang Chen, Dawei Guo, Fang Yang, Qingyuan Guo, Hui Song
Smoking is identified as a risk factor for periodontitis. Carbon monoxide (CO)-releasing molecule-3 (CORM-3) is a compound that has demonstrated anti-inflammatory effects in vitro and in vivo studies. The present study aimed to investigate the effects of CORM-3 on the expression of inflammatory and osteoclastogenic cytokines in human periodontal ligament cells (PDLCs) stimulated by nicotine and lipopolysaccharide (LPS). The cells were pretreated with CORM-3 and then cultured in medium in the presence of nicotine and LPS...
September 8, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28901023/mosasaurs-and-snakes-have-a-periodontal-ligament-timing-and-extent-of-calcification-not-tissue-complexity-determines-tooth-attachment-mode-in%C3%A2-reptiles
#9
Aaron R H LeBlanc, Denis O Lamoureux, Michael W Caldwell
Squamates present a unique challenge to our understanding of dental evolution in amniotes because they are the only extant tooth-bearing group for which a ligamentous tooth attachment is considered to be absent. This has led to the assumption that mammals and crocodilians have convergently evolved a ligamentous tooth attachment, composed of root cementum, periodontal ligament, and alveolar bone, whereas squamates are thought to possess a single bone of attachment tissue that fuses teeth to the jaws. The identity and homology of tooth attachment tissues between squamates, crocodilians, and mammals have thus been a focal point of debate for decades...
September 12, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28890616/clinical-and-practical-implications-of-storage-media-used-for-tooth-avulsion
#10
REVIEW
Vineet Is Khinda, Gurpreet Kaur, Gurlal S Brar, Shiminder Kallar, Heena Khurana
Replantation is being widely accepted as an effective treatment option for an avulsed tooth. However, the long-term fate of replanted teeth is unpredictable; it is dependent on various factors, such as the time interval between avulsion and replantation, extra-alveolar storage period (dry storage or storage media), the vitality status of pulp or periodontal tissues and the type and period of splinting. The appropriate use of storage media is an important clinical factor affecting the postoperative prognosis of avulsed teeth following replantation...
April 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28889456/harmine-promotes-periodontal-ligament-cell-induced-tissue-regeneration
#11
Hyun-Chang Lim, Byung-Yoon Cha, Sun U Song, Jeong-Ho Yun
OBJECTIVE: to investigate whether harmine has a promotive effect on human periodontal ligament cells (hPDLCs)-induced tissue regeneration. MATERIALS AND METHODS: Various concentrations of harmine on hPDLCs proliferation were tested. Osteogenic and cementogenic characteristics were examined in hPDLC/rhBMP-2 and hPDLC/harmine by alizarin red S staining, real-time PCR, and Western blotting assay. The activity of harmine was investigated in an ectopic transplantation nude mouse model...
September 10, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28889194/functions-of-periostin-in-dental-tissues-and-its-role-in-periodontal-tissues-regeneration
#12
REVIEW
Juan Du, Minqi Li
The goal of periodontal regenerative therapy is to predictably restore the tooth's supporting periodontal tissues and form a new connective tissue attachment of periodontal ligament (PDL) fibers and new alveolar bone. Periostin is a matricellular protein so named for its expression primarily in the periosteum and PDL of adult mice. Its biological functions have been widely studied in areas such as cardiovascular physiology and oncology. Despite being initially identified in the dental tissues and bone, investigations of Periostin functions in PDL and alveolar-bone-related physiopathology are less abundant...
September 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28884507/extracellular-matrix-derived-from-periodontal-ligament-cells-maintains-their-stemness-and-enhances-redifferentiation-via-the-wnt-pathway
#13
Ji-Chun Zhang, Zhong-Chen Song, Yi-Ru Xia, Rong Shu
Large numbers of viable cells cannot be obtained from periodontal ligament tissues of patients with periodontitis. Therefore, it is imperative to establish an ex vivo environment that can support cell proliferation and delay senescence. Here, we have successfully reconstructed a native extracellular matrix (ECM), derived from early-passage human periodontal ligament cells (PDLCs) using the NH4 OH/Triton X-100 protocol. The ECM was investigated by scanning electron microscopy and immunostaining for specific ECM proteins (collagen I and fibronectin)...
September 7, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28877285/chondroblastic-osteosarcoma-mimicking-periapical-abscess
#14
Fernanda Paula Yamamoto-Silva, Brunno Santos de Freitas Silva, Aline Carvalho Batista, Elismauro Francisco de Mendonça, Décio Dos Santos Pinto-Júnior, Carlos Estrela
Case report: The present report describes a case of chondroblastic osteosarcoma in the periapical region of teeth #29, #30, and #31 of an 18-year-old male. Clinical history showed self-reported discomfort in the right posterior gingiva for over a month. Physical examination showed a small expansion and redness of the right mandibular buccal and lingual cortical plates, but no signs of pain or inflammation were observed. All the teeth responded positively to pulp sensibility. Periapical and panoramic radiographs showed slight periapical radiolucency in the roots of teeth #29 and #30, clear periodontal ligament space widening, and evident loss of lamina dura...
July 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28874877/bone-regeneration-in-minipigs-by-intrafibrillarly-mineralized-collagen-loaded-with-autologous-periodontal-ligament-stem-cells
#15
Ci Zhang, Boxi Yan, Zhen Cui, Shengjie Cui, Ting Zhang, Xuedong Wang, Dawei Liu, Ruli Yang, Nan Jiang, Yanheng Zhou, Yan Liu
Biomimetic intrafibrillarly-mineralized collagen (IMC) is a promising scaffold for bone regeneration because of its structural and functional similarity to natural bone. The objective of this study was to evaluate the bone regeneration potential of IMC loaded with autologous periodontal ligament stem cells (PDLSCs) in large bone defects in minipigs. A macroporous IMC with a bone-like subfibrillar nanostructure was fabricated using a biomimetic bottom-up approach. Non-healing full thickness defects were established on the cranial bone in minipigs, and IMC and hydroxyapatite (HA) scaffolds seeded with autologous PDLSCs were implanted into these defects...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28874149/comparison-of-computed-tomography-and-high-field-3-0%C3%A2-t-magnetic-resonance-imaging-of-age-related-variances-in-selected-equine-maxillary-cheek-teeth-and-adjacent-tissues
#16
Christin Schoppe, Maren Hellige, Karl Rohn, Bernhard Ohnesorge, Astrid Bienert-Zeit
BACKGROUND: Modern imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI) have the advantage of producing images without superimposition. Whilst CT is a well-established technique for dental diagnostics, MRI examinations are rarely used for the evaluation of dental diseases in horses. Regarding equine endodontic therapies which are increasingly implemented, MRI could help to portray changes of the periodontal ligament and display gross pulpar anatomy...
September 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28866437/adiponectin-prevents-orthodontic-tooth-movement-in-rats
#17
Sigrid Haugen, Kristin Matre Aasarød, Astrid Kamilla Stunes, Mats Peder Mosti, Tanya Franzen, Vaska Vandevska-Radunovic, Unni Syversen, Janne Elin Reseland
OBJECTIVE: The objective was to examine the effects of repetitive local administration of adiponectin on experimental tooth movement in rats. MATERIALS AND METHODS: The maxillary right first molar of male Wistar rats (n=24) was moved mesially for 14days, with local adiponectin injections (0.2 or 2μg) every third day. Micro-computed tomography was performed at days 0, 6 and 14 and molar movement, bone density and bone volume fraction were calculated from the scans...
August 26, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28862586/success-rates-of-hall-technique-crowns-in-primary-molars-a-retrospective-pilot-study
#18
Walker Clark, Matthew Geneser, Arwa Owais, Michael Kanellis, Fang Qian
The purpose of this retrospective observational study was to assess success rates, both clinical and radiographic, of stainless steel crowns (SSCs) placed on primary molars using the Hall technique. A retrospective analysis was performed on recorded data of patients with any primary molar treated with an SSC that was placed using the Hall technique at the University of Iowa College of Dentistry during 2011-2015. The primary outcome measure was the success or failure of the SSCs placed with the Hall technique...
September 2017: General Dentistry
https://www.readbyqxmd.com/read/28862325/platelet-rich-fibrin-aspirin-complex-promotes-alveolar-bone-regeneration-in-periodontal-defect-in-rats
#19
J Du, S Mei, L Guo, Y Su, H Wang, Y Liu, Z Zhao, S Wang, Y Liu
BACKGROUND AND OBJECTIVES: The efficacy and outcomes of aspirin in local defects and the use of platelet-rich fibrin (PRF) in periodontal defects were investigated. Whether the PRF/aspirin complex is a suitable scaffold and delivery system to carry sustained-release aspirin/salicylic acid to promote periodontal bone regeneration was determined. MATERIAL AND METHODS: PRF and PRF/aspirin complex were prepared. The concentrations of aspirin/salicylic acid released from the PRF/aspirin complex were calculated at 37°C...
September 1, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28861710/healing-of-root-and-surrounding-periodontium-after-root-damage-with-miniscrew-implants-a-histomorphologic-study-in-dogs
#20
Yingtao Lv, Zhaoqiang Zhang, Yuan Su, Peiyan Yuan, Weiqun Ma, Wenhua Huang, Pingping Xu
OBJECTIVES: The main purpose of this study was to investigate the detailed healing process of the roots and surrounding periodontium [cementum, periodontal ligament (PDL), and bone] at different time points after intentional root damage with miniscrew implants (MSIs). MATERIALS AND METHODS: After cone-beam computed tomography examination and measurement, a total of 78 premolar and molar roots from five beagle dogs were intentionally damaged by implanting miniscrews in the interradicular region...
August 31, 2017: Clinical Oral Investigations
keyword
keyword
81346
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"