keyword
MENU ▼
Read by QxMD icon Read
search

cementum

keyword
https://www.readbyqxmd.com/read/28902892/neanderthal-and-denisova-tooth-protein-variants-in-present-day-humans
#1
Clément Zanolli, Mathilde Hourset, Rémi Esclassan, Catherine Mollereau
Environment parameters, diet and genetic factors interact to shape tooth morphostructure. In the human lineage, archaic and modern hominins show differences in dental traits, including enamel thickness, but variability also exists among living populations. Several polymorphisms, in particular in the non-collagenous extracellular matrix proteins of the tooth hard tissues, like enamelin, are involved in dental structure variation and defects and may be associated with dental disorders or susceptibility to caries...
2017: PloS One
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
#2
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/28889456/harmine-promotes-periodontal-ligament-cell-induced-tissue-regeneration
#3
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/28866368/overlapping-functions-of-bone-sialoprotein-and-pyrophosphate-regulators-in-directing-cementogenesis
#4
M Ao, M B Chavez, E Y Chu, K C Hemstreet, Y Yin, M C Yadav, J L Millán, L W Fisher, H A Goldberg, M J Somerman, B L Foster
Although acellular cementum is essential for tooth attachment, factors directing its development and regeneration remain poorly understood. Inorganic pyrophosphate (PPi), a mineralization inhibitor, is a key regulator of cementum formation: tissue-nonspecific alkaline phosphatase (Alpl/TNAP) null mice (increased PPi) feature deficient cementum, while progressive ankylosis protein (Ank/ANK) null mice (decreased PPi) feature increased cementum. Bone sialoprotein (Bsp/BSP) and osteopontin (Spp1/OPN) are multifunctional extracellular matrix components of cementum proposed to have direct and indirect effects on cell activities and mineralization...
September 1, 2017: Bone
https://www.readbyqxmd.com/read/28861710/healing-of-root-and-surrounding-periodontium-after-root-damage-with-miniscrew-implants-a-histomorphologic-study-in-dogs
#5
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
https://www.readbyqxmd.com/read/28853506/-measurements-of-mechanical-properties-and-morphology-of-root-canal-in-maxillary-primary-anterior-teeth
#6
Hu Jia, Liu He, Cai Qing, Deng Xuliang
Objective This study aimed to measure the taper and diameter of root canal, as well as the elastic modulus and hardness in the root dentin of maxillary primary anterior teeth. Methods Patients under general anesthesia who needed root canal therapy in the maxillary primary anterior teeth were selected. Silicone impression material was used to take impressions. The impressions were scanned, and the taper and diameter of root canal were measured. Maxillary primary anterior teeth were collected in vitro. The elastic modulus and hardness of root dentin was tested...
August 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28839408/efficacy-of-milk-as-a-desensitizing-agent-for-the-treatment-of-sensitivity-following-scaling-and-root-planing
#7
Jyosthna G Madhurkar, Pragathi R Bhat, Anirudh B Acharya, Srinath L Thakur, Vijay A Trasad
BACKGROUND: Dentine hypersensitivity (DH) is the most common problem encountered by most of the dentists in their day-to-day clinical practice. It is characterized by a sharp pain or discomfort arising as a response to thermal, chemical, or osmotic stimuli and is caused due to exposure of dentine after the enamel or cementum at the root surface has been lost by the treatment, underlying dental and gingival diseases or physiologic wear and tear of the teeth. This further complicates preventive oral hygiene procedures by the patients, which jeopardize periodontal treatment or may as well aid in periodontal treatment failure...
April 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28834387/evaluation-of-a-platelet-lysate-bi-layered-system-for-periodontal-regeneration-in-a-rat-intrabony-3-wall-periodontal-defect
#8
Pedro S Babo, Xinjie Cai, Adelina S Plachokova, Rui L Reis, John Jansen, Manuela E Gomes, X Frank Walboomers
With currently available therapies, full regeneration of lost periodontal tissues after periodontitis cannot be achieved. In this study, a combined compartmentalized system was tested, composed of (1) a platelet lysate (PL)-based construct, which was placed along the root aiming to regenerate the root cementum and periodontal ligament, and (2) a calcium phosphate cement composite incorporated with hyaluronic acid microspheres loaded with PL, aiming to promote the regeneration of alveolar bone. This bi-layered system was assessed in a 3-wall periodontal defect in Wistar rats...
August 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28834247/regeneration-of-the-cementum-and-periodontal-ligament-using-local-bdnf-delivery-in-class-ii-furcation-defects
#9
Ryo Jimbo, Jessica Singer, Nick Tovar, Charles Marin, Rodrigo Neiva, Estevam A Bonfante, Malvin N Janal, Hugues Contamin, Paulo G Coelho
Periodontal furcation defects are usually addressed by the placement of a physical barrier which may limit the regenerative potential of periodontal wounds. This study morphometrically quantified the regenerative effect of brain-derived neurotrophic factor (BDNF) in furcation defects in a non-human primate model. Grade II furcation defects (with and without induced inflammation prior to surgery) were created on the first and second molars of eight non-human primates. Defects were treated with open flap debridement and subsequently filled with either: Group A; BDNF (500 µg mL(-1) ) in high-molecular weight-hyaluronic acid (HMW-HA), Group B; BDNF (50 µg mL(-1) ) in HMW-HA, Group C; HMW-HA acid only, Group D; unfilled defect, or Group E; BDNF (500 µg mL(-1) ) in saline...
August 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28833210/status-and-progress-of-treatment-methods-for-root-caries-in-the-last-decade-a-literature-review
#10
REVIEW
J Cai, J E A Palamara, D J Manton, M F Burrow
The aim of this literature review is to explore the treatment methods for root caries in laboratory and clinical research in the last decade. A systematic search of publications in PubMed and Web of Science databases was performed. The time-span was limited to the last 10 years and English language. Further retrieval was conducted using the search terms of specific therapies or treatments. Titles and abstracts of identified publications were screened. Reviews; case reports; conference abstracts; letters to editor; dissertation and theses; non-English articles; epidemiological studies, diagnostic methods or decision-making process for root caries treatment without assessment of its efficacy; deep carious lesions with inflamed pulp and require pulp capping or endodontic treatment and research on root cementum were excluded...
August 18, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28822568/effects-of-lipopolysaccharide-on-the-proliferation-and-osteogenic-differentiation-of-stem-cells-from-the-apical-papilla
#11
Veera Lertchirakarn, Panuroot Aguilar
INTRODUCTION: Stem cells from the apical papilla (SCAPs) were suggested as the stem cell source in regenerative endodontic procedures. However, bone and/or cementum-like structure were observed in root canals. Lipopolysaccharide (LPS) in infected root canals might alter SCAPs' osteogenic differentiation pattern. The objectives of this study were to investigate the effects of LPS on SCAPs' proliferation and osteogenic differentiation. METHODS: The mesenchymal stem cell characteristics of SCAPs were confirmed...
August 16, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28815247/-changes-of-cementum-endotoxin-levels-in-different-teeth-with-periodontitis-treated-with-root-conditioning
#12
Chang-Sheng Fu, Rong-Sen Liu, Yun Luo, Long Ou, Ying-Chao Li, Xian-Hua Zhang
PURPOSE: To observe the changes of endotoxin levels after different teeth with periodontitis were treated with different methods. METHODS: Six healthy premolars extracted for orthodontic reasons and 36 posterior teeth extracted due to severe periodontitis were selected. Each tooth was processed from two 4 mm×4 mm×1 mm cementum pieces 2 mm under the cementum-enamel junction, each tooth with periodontitis was numbered. Healthy teeth served as negative control group, one of the two tablets from each tooth with periodontitis was selected in the periodontitis group, which was not treated with root surface treatment...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28813496/uneven-distribution-of-enamel-dentine-and-cementum-in-cheek-teeth-of-domestic-horses-equus-caballus-a-micro-computed-tomography-study
#13
Lauritz Martin Englisch, Kathrin Kostrzewa, Susan Kopke, Klaus Failing, Carsten Staszyk
BACKGROUND: Hypsodont equine cheek teeth possess large dental crowns, resting partly in the bony alveolus. Over a horse's life cheek teeth erupt continuously to compensate for occlusal wear of 3-4 mm per year. Parts of the crown initially resting in the bony alveolus become progressively exposed at the occlusal surface with time. Hitherto, it is unclear whether the typical structure of the equine occlusal surface, composed of a complex arrangement of enamel, dentin and cementum, remains constant or undergoes structural changes with age...
2017: PloS One
https://www.readbyqxmd.com/read/28811640/a-reciprocal-interaction-between-%C3%AE-catenin-and-osterix-in-cementogenesis
#14
Hwajung Choi, Tak-Heun Kim, Siqin Yang, Jeong-Chae Lee, Hyung-Keun You, Eui-Sic Cho
Although accumulating evidence indicates that both β-catenin and osterix (Osx) are essential for bone and tooth development, few studies have investigated the interaction of these two key proteins in the context of cementogenesis. In this study, we used transgenic mice with constitutively active β-catenin and inactive Osx in the dental mesenchyme to address this question. We found that cementoblasts with constitutively active β-catenin require Osx to produce excessive cellular cementum, and that ablation of Osx prevents this abnormal accumulation...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28771955/mineral-features-of-connective-dental-hard-tissues-in-hypoplastic-amelogenesis-imperfecta
#15
Rym Kammoun, Catherine Behets, Lamia Mansour, Sonia Ghoul-Mazgar
To explore the mineral features of dentin and cementum in hypoplastic AI teeth MATERIALS AND METHODS: Forty four (44) teeth cleaned and free of caries were used: 20 control and 24 affected by hypoplastic amelogenesis imperfecta. Thirty-two teeth were studied by pQCT, cut in sections and analysed under microradiography, polarized light microscopy and confocal Raman spectroscopy. Eight teeth were observed under scanning electron microscope. Four teeth were used for an X-ray diffraction. The mineral density data were analysed statistically with the Mann-Whitney U test, using GraphPad InStat Software RESULTS: Both coronal and radicular dentin were less mineralized in AI teeth when compared to control (respectively 6...
August 3, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28766808/investigation-of-the-regenerative-potential-of-necrotic-mature-teeth-following-different-revascularisation-protocols
#16
Sarah Hossam Fahmy, Ehab El Sayed Hassanien, Mohamed Mokhtar Nagy, Kariem Mostafa El Batouty, Mohamed Mekhemar, Karim Fawzy El Sayed, El Hassan Hassanein, Jörg Wiltfang, Christof Dörfer
This study aimed to assess the revascularisation potential of necrotic mature teeth in a dog model following different protocols. Periapical infection was induced in 54 mature premolars. Teeth were distributed into seven groups: (1) Double-antibiotic-paste/Blood clot, (2) Ciprofloxacin/collagen, (3) Double-antibiotic-paste/Collagen, (4) Modified Tri-antibiotic-paste /collagen, (5) Ciprofloxacin/Gelfoam, (6) Double-antibiotic-paste/Gelfoam, and (7) Modified Triantibiotic- paste/Gelfoam. Positive and negative controls included infected and healthy teeth, respectively, (n = 12 roots/group)...
August 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28764948/effects-of-the-incorporation-of-%C3%AE%C2%B5-aminocaproic-acid-chitosan-particles-to-fibrin-on-cementoblast-differentiation-and-cementum-regeneration
#17
Chan Ho Park, Joung-Hwan Oh, Hong-Moon Jung, Yoonnyoung Choi, Saeed Ur Rahman, Sungtae Kim, Tae-Il Kim, Hong-In Shin, Yun-Sil Lee, Frank H Yu, Jeong-Hwa Baek, Hyun-Mo Ryoo, Kyung Mi Woo
Cementum formation on the exposed tooth-root surface is a critical process in periodontal regeneration. Although various therapeutic approaches have been developed, regeneration of integrated and functional periodontal complexes is still wanting. Here, we found that the OCCM30 cementoblasts cultured on fibrin matrix express substantial levels of matrix proteinases, leading to the degradation of fibrin and the apoptosis of OCCM30 cells, which was reversed upon treatment with a proteinase inhibitor, ε-aminocaproic acid (ACA)...
July 29, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28764922/tissue-specific-mineralization-defects-in-the-periodontium-of-the-hyp-mouse-model-of-x-linked-hypophosphatemia
#18
Benjamin R Coyac, Guillaume Falgayrac, Brigitte Baroukh, Lotfi Slimani, Jérémy Sadoine, Guillaume Penel, Martin Biosse-Duplan, Thorsten Schinke, Agnès Linglart, Marc D McKee, Catherine Chaussain, Claire Bardet
X-linked hypophosphatemia (XLH) is a dento-osseous disorder caused by inactivating mutations in the PHEX gene, leading to renal phosphate wasting and hypophosphatemia, and impaired mineralization of bones and teeth. In the oral cavity, recent reports suggest a higher susceptibility of XLH patients to periodontitis, where patients present with impaired tooth cementum - a bone-like tissue involved in tooth attachment to the jaw bones and post-eruption tooth positioning - and a higher frequency of intrabony defects...
July 29, 2017: Bone
https://www.readbyqxmd.com/read/28762889/orthodontic-management-of-a-dental-concrescence-a-case-report
#19
Nicky David Stanford, Sara Hosni, Tim Morris
Dental concrescence is a rare dental abnormality resulting in the joining of two teeth at the level of the cementum. This is the first reported case of the orthodontic management of a dental concrescence and the options for patient treatment are discussed. In this case, a compromised occlusal result was accepted with restorative masking of the affected teeth.
August 1, 2017: Journal of Orthodontics
https://www.readbyqxmd.com/read/28761940/management-of-ankylotic-root-resorption-following-dental-trauma-a-short-review-and-proposal-of-a-treatment-protocol
#20
Shaul Lin, Malka Ashkenazi, Munir Karawan, Sorin T Teich, Zvi Gutmacher
Ankylotic root resorption is a serious complication following traumatic dental injuries. The aetiology of root resorption includes acute injury to the cementum and periodontal ligament, and subsequent biological processes that propagate the harm. The aim of the present paper is to present a structured treatment protocol for teeth that have experienced trauma and are at risk of developing ankylotic root resorption, followed by a decoronation protocol for situations in which ankylotic root resorption developed...
July 31, 2017: Oral Health & Preventive Dentistry
keyword
keyword
50821
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"