Gotowa bibliografia na temat „Periodontal ligament”
Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych
Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Periodontal ligament”.
Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.
Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.
Artykuły w czasopismach na temat "Periodontal ligament"
Saito, A., E. Saito, M. Kawanami i A. Shimada. "Healing in Transplanted Teeth with Periodontal Ligament Cultured In Vitro". Cell Transplantation 12, nr 5 (lipiec 2003): 519–25. http://dx.doi.org/10.3727/000000003108747082.
Pełny tekst źródłaBahirrah, Siti, Lidya Irani Nainggolan i Philiph Pasaribu. "Effect of Vitamin C on Tooth Movement in Terms of Periodontal Ligament Space in Guinea Pigs". Dentika Dental Journal 22, nr 2 (22.10.2019): 39–43. http://dx.doi.org/10.32734/dentika.v22i2.1677.
Pełny tekst źródłaSena, K., Y. Morotome, O. Baba, T. Terashima, Y. Takano i I. Ishikawa. "Gene Expression of Growth Differentiation Factors in the Developing Periodontium of Rat Molars". Journal of Dental Research 82, nr 3 (marzec 2003): 166–71. http://dx.doi.org/10.1177/154405910308200304.
Pełny tekst źródłaGopinathan, Gokul, Xianghong Luan i Thomas G. H. Diekwisch. "Epigenetic Repression of RUNX2 and OSX Promoters Controls the Nonmineralized State of the Periodontal Ligament". Genes 14, nr 1 (12.01.2023): 201. http://dx.doi.org/10.3390/genes14010201.
Pełny tekst źródłaBrahmanta, Arya, Sutjipto Sutjipto i Ida Bagus Narmada. "Histological changes during orthodontic tooth movement due to hyperbaric oxygen therapy". Dental Journal (Majalah Kedokteran Gigi) 49, nr 2 (14.02.2017): 63. http://dx.doi.org/10.20473/j.djmkg.v49.i2.p63-66.
Pełny tekst źródłaAnneroth, G., K. H. Danielsson, H. Evers, K. G. Hedström i Å. Nordenram. "Periodontal ligament injection". International Journal of Oral Surgery 14, nr 6 (grudzień 1985): 538–43. http://dx.doi.org/10.1016/s0300-9785(85)80061-2.
Pełny tekst źródłaAditya, Vangara, i Kharidhi Laxman Vandana. "Management of endo-perio lesion with autologous stem cell therapy". Saudi Journal of Oral Sciences 11, nr 1 (styczeń 2024): 54–59. http://dx.doi.org/10.4103/sjoralsci.sjoralsci_79_23.
Pełny tekst źródłaBosiakov, Sergei, i Gennadi Mikhasev. "MATHEMATICAL MODEL FOR ANALYSIS OF TRANSLATIONAL DISPLACEMENTS OF TOOTH ROOT". Mathematical Modelling and Analysis 20, nr 4 (20.07.2015): 490–501. http://dx.doi.org/10.3846/13926292.2015.1068877.
Pełny tekst źródłaPinheiro, Gabriela Veloso Vieira da Silva, Robinson Sabino-Silva, Melissa Rodrigues de Araujo, Shaiene Patrícia Gomes, Stephanie Wutke Oliveira, Emília Maria Gomes Aguiar, Léia Cardoso-Sousa, Carla Castiglia Gonzaga i Marcela Claudino. "Experimental Acute Sepsis Reduced Number of Osteocalcin Immunolabeled Cells in Periodontal Ligament". Brazilian Dental Journal 31, nr 2 (kwiecień 2020): 143–51. http://dx.doi.org/10.1590/0103-6440202003024.
Pełny tekst źródłaAshrafi, Mehran, Farzan Ghalichi, Behnam Mirzakouchaki i Iman Zoljanahi Oskui. "Numerical simulation of hydro-mechanical coupling of periodontal ligament". Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 234, nr 2 (13.11.2019): 171–78. http://dx.doi.org/10.1177/0954411919887071.
Pełny tekst źródłaRozprawy doktorskie na temat "Periodontal ligament"
Silva, Guilherme Ferreira da [UNESP]. "Reação histológica do periodonto, subjacente à região de furca perfurada e preenchida com diferentes materiais, em molares de ratos". Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/90414.
Pełny tekst źródłaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O sucesso do tratamento de dentes com perfurações de furca está diretamente relacionado ao tipo de material utilizado no preenchimento destas perfurações. Um material selador ideal deve possuir boas propriedades físicas, químicas e biológicas, sendo, o Mineral Trióxido Agregado (MTA) um dos materiais indicados. Assim, o objetivo desse estudo foi avaliar a resposta biológica de três materiais seladores: MTA-Angelus branco® (MTA), Endo-C.P.M.-Sealer® (CPM) e cimento de óxido de zinco e eugenol (OZE). Para isso, foram utilizados os primeiros molares superiores de 60 ratos; o primeiro molar superior do lado esquerdo hígido foi utilizado como controle e o do lado direito foi realizada a perfuração no assoalho da câmara pulpar com uma fresa nº ¼. Os materiais foram manipulados e inseridos na perfuração e a cavidade de acesso foi selada com ionômero de vidro. Decorrido os períodos de 07, 15, 30 e 60 dias, os animais foram sacrificados e os fragmentos das maxilas removidos e fixados em formaldeído. Após a descalcificação em EDTA, os fragmentos de maxila foram desidratados, diafanizados e incluídos em parafina. Os cortes foram corados com hematoxilina & eosina (H&E), tricrômico de Masson ou submetidos ao método do TRAP (“Tartrate Resistant Acid Phosphatase”) para realização das análises morfológica e morfométrica. A análise morfométrica foi realizada sob três parâmetros: espessura do ligamento periodontal (LP), número de células inflamatórias/mm2 (CI) e número de osteoclastos TRAP-positivos. Os resultados morfométricos revelaram aumento significante (p_0,05) no espaço do LP,em todos os períodos, em relação ao controle. Entretanto, aos 60 dias, este espaço foi menor em todos os grupos experimentais; o OZE foi o que provocou maior espessamento do LP, não havendo diferenças significantes...
The therapy success in the treatment of root perforations depends on the material used to fill them. The best sealing material should present good physical, chemical and biological properties. More recently, the mineral trioxide aggregate (MTA) has been indicated for sealing of root perforations. Thus, the aim of the present study was to evaluate the biological response of three sealing materials: White MTA-Angelus (MTA), Endo- C.P.M.-Sealer (CPM) and zinc-oxide and eugenol cement (OZE). Sixty adult rats weighing 250g were divided into three groups: MTA, CPM and OZE. Furcal perforations were performed in maxillary first molars with a round bur no. ¼; the contra-lateral maxillary first molars – without perforations - were used as control. The perforations were carried out and the materials were placed into these defects; access cavities were sealed with glass ionomer. After 07, 15, 30 and 60 days, the animals were killed, and fragments of maxilla containing first molars were removed and immediately immersed in 4% formaldehyde. After decalcification in EDTA, the specimens were processed and embedded in paraffin. Sections were stained with hematoxylin-eosin, Masson’s trichrome and submitted to TRAP (Tartrate Resistant Acid Phosphatase) reaction. The morphometric analysis, in the furcation region of the periodontal ligament, was performed considering three parameters: thickness of periodontal ligament (PL), number of inflammatory cells (IC) and number of TRAP-positive osteoclasts in the alveolar bone surface. The experimental groups showed, in all periods, significant increase (p_0.05) in the PL thickness in comparison to control group; this thickness was more accentuated in the OZE group. The periodontal space in the CPM group was less thick in all experimental periods in comparison to MTA and OZE groups, except in the period of 60 days; in this period, statistical differences in the periodontal space were not detected between CPM and MTA groups.
Sousa, Hugo Alexandre de [UNESP]. "Avaliação microscópica do efeito de diferentes meios de conservação sobre o ligamento periodontal de dentes humanos extraídos cirurgicamente". Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/101071.
Pełny tekst źródłaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Not available.
Sousa, Hugo Alexandre de. "Avaliação microscópica do efeito de diferentes meios de conservação sobre o ligamento periodontal de dentes humanos extraídos cirurgicamente /". Araçatuba : [s.n.], 2004. http://hdl.handle.net/11449/101071.
Pełny tekst źródłaPedrini, Denise. "Análise do conhecimento dos cirurgiões dentistas sobre plano de tratamento das injúrias do ligamento periodontal após traumatismo dentoalveolar /". Araçatuba, 2008. http://hdl.handle.net/11449/106717.
Pełny tekst źródłaAbstract: An accurate diagnosis and the establishment of an adequate treatment plan may constitute quite a complex task, particularly in cases of dentoalveolar trauma, which require a multidisciplinary approach and knowledge of the repair process in tooth injuries. The aim of this study was to analyze the dentists' knowledge of the treatment plan for periodontal ligament injuries after dentoalveolar trauma. For such purpose, a questionnaire was prepared with questions arguing about the profile of the interviewed professionals and their conduct facing periodontal ligament injuries (concussion, subluxation, extrusive luxation, lateral luxation and intrusive luxation) secondary to dentoalveolar trauma. Six hundred and ninety three dentists attending the 23rd Annual Meeting of the SBPqO (2006) filled out the questionnaire and the obtained data were subjected to descriptive analysis. Either chi-square test or Fisher's exact test was applied to determine the frequencies and the significance level among the variables. The results revealed great difficulties in establishing a treatment plan for extrusive, lateral and intrusive luxations. In general, the dental specialty of the participants did not influence the elaboration of adequate treatment plans for the most severe injuries. It could be concluded that dentists do not have sufficient knowledge to treat properly the most severe types of periodontal ligament injuries following a dentoalveolar trauma
Esper, Helen Ramon [UNESP]. "Remoção mecânica do ligamento periodontal cementário necrosado com escova de Robinson e pedra pomes e com lâmina de bisturi. Análise histomorfométrica e MEV". Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/88929.
Pełny tekst źródłaConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Um dos fatores importantes no sucesso do reimplante dentário tardio parece ser dependente do tipo de tratamento da superfície radicular. Esse tratamento inclui a remoção do ligamento periodontal cementário necrótico que pode favorecer o aparecimento das reabsorções radiculares externas, maior causa da perda dos dentes reimplantados nessas condições. O objetivo desse estudo foi comparar a efetividade de duas técnicas de remoção mecânica do ligamento periodontal cementário necrosado e a preservação da camada de cemento. Foram utilizadas 45 raízes de pré-molares hígidos extraídos com finalidade ortodôntica. Após a extração os dentes permaneceram por um período de uma hora em meio ambiente e passado esse tempo foram imersos em soro fisiológico por mais dez minutos. A partir desse passo foram divididos em 3 grupos experimentais. Grupo 1: controle, o ligamento periodontal cementário foi mantido. Grupo 2: remoção do ligamento periodontal cementário por meio de raspagem com lâmina de bisturi (RLB). Grupo 3: remoção do ligamento periodontal cementário por meio de escova de Robinson montada em baixa rotação e pasta de pedra pomes e água (RER). Após processamento das peças foram feitos cortes transversais e longitudinais nessas raízes para análise em microscopia óptica e eletrônica de varredura (MEV). Pela análise qualitativa e quantitativa dos resultados concluiu-se que a técnica RER foi mais eficiente que a RLB quanto à remoção do ligamento periodontal cementário, porém ambas preservaram a camada de cemento.
One of the important features related to the success of delayed tooth replantation seems to depend on the type of root surface treatment. This treatment encloses the removal of necrotic cemental periodontal ligament, which may favors the occurrence of external root resorptions that are the major cause of loss of teeth replanted in such conditions. The aim of this study was to compare the effectiveness of two techniques for mechanical removal of necrotic cemental periodontal ligament and the preservation of the cementum layer. Forty-five roots of sound premolars extracted for orthodontic purposes were selected. After extraction, the teeth were maintained at room ambient conditions for 1 hour and then immersed in saline for additional 10 minutes. Afterwards, the roots were assigned to three experimental groups. Group 1: control, the cemental periodontal ligament was maintained. Group 2: removal of the cemental periodontal ligament by scaling with a scalpel blade (SBR). Group 3: removal of the cemental periodontal ligament using a Robinson bristle brush, at low-speed, with pumice/water slurry (RBR). After processing of the pieces, the roots were sectioned transversally and longitudinally and the specimens obtained were examined under optical and scanning electron microscopy (SEM). The quantitative and qualitative analyses of the results showed that the RBR technique was more effective than the SBR technique, as regards the removal of the cemental periodontal ligament. Both techniques preserved the cementum layer.
Guilherme, Armando Jose Venturi. "Avaliação histologica do ligamento periodontal de ratos wistar sob efeito do hipotireoidismo agudo induzido pelo metimazol (Tapazol 'Marca Registrada')". [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/313461.
Pełny tekst źródłaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
Made available in DSpace on 2018-08-07T02:20:30Z (GMT). No. of bitstreams: 1 Guilherme_ArmandoJoseVenturi_M.pdf: 3870471 bytes, checksum: a528b13bc51100e1fb5739da61756961 (MD5) Previous issue date: 2006
Resumo: Objetivo ¿ Avaliar o ligamento periodontal sob o efeito do hipotireoidismo induzido agudamente. Métodos ¿ Foram utilizados 40 ratos wistar, que foram divididos em 2 grupos de 20 animais cada. O primeiro grupo denominado tratado, ou seja, foi induzido ao hipotireoidismo pela administração de metimazol 5 mg/100ml na água de bebida à vontade e o segundo de controle, onde não foi administrado o metimazol. A condição da tiróide foi avaliada por dosagens de T4 no plasma, pelo método de eletroquimioluminescência, de sangue colhido da veia da cauda. Cada grupo foi subdividido em impedido e desimpedido quanto ao processo de erupção e novamente subdivido, em relação a eutanásia e coleta do material, em 21 e 28 dias. Como o rato, apresenta o crescimento contínuo dos incisivos inferiores, o desimpedimento foi efetuado sob efeito anestésico através do corte do incisivo inferior esquerdo em nível da papila interdental a cada dois dias, esse processo de corte leva a erupção acelerada do dente. No 21º e 28º dia procedeu-se a eutanásia por indução anestésica e a coleta de material para análise histológica qualitativa e quantitativa onde foram tomados como parâmetros a celularidade; quantidade e aspectos das fibras colágenas e espaços vazios. Resultados ¿ A análise qualitativa do material histológico revelou diferenças entre todos os grupos. Com relação a análise quantitativa, houve diferença estatisticamente significativa com relação ao número de fibroblastos na região 5 entre os grupos controle impedido e tratado desimpedido, com relação ao espaço vazio, a diferença ocorreu entre grupos controle desimpedido e tratado desimpedido. Quando avaliada a condição de erupção acelerada foram encontradas diferenças significativas entre os grupos controle impedido e controle desimpedido, e não foram encontradas diferenças entre os grupos tratado impedido e tratado desimpedido, demonstrando assim que o hipotireoidismo é uma condição sistêmica que inibe ou minimiza os efeitos do desimpedimento na aceleração da erupção dental. Conclusão - Todos os grupos apresentaram diferenças morfológicas quando observados à microscopia. As alterações encontradas são mais dependentes da capacidade funcional das células envolvidas do que do aumento ou diminuição das mesmas. Os efeitos do hipotireoidismo parecem impedir ou minimizar os efeitos do desimpedimento no estímulo do aumento de velocidade de erupção dental
Abstract: Objective ¿ Evaluate the periodontal ligament under the effect of the acutely induced hypothyroidism. Methods ¿ It was used 40 Wistar rats, which were separated in 2 groups of 20 animals each. The first group called 'treated¿, that is, was induced to the hypothyroidism by the administration of methymazole 5 mg/100ml in the drinking water at will and the second one called 'control¿ in which it was not administered the methymazole. The thyroid condition has been evaluated by dosages of T4 in plasma, by the method of electrochemoluminescence of blood collected from the tail¿s vain. Each group has been subdivided in impeded and unimpeded in relation to the eruption process and again subdivided, in relation to the euthanasia and collection of the material, in 21 and 28 days. As the rat presents the continuous grouth of the inferior incisors, the umpededing has been done under anesthetic effect by the cut of the left inferior incisor at the level of the interdental papillae each two days, this process of cut takes to the accelerated eruption of the tooth. In the 21st and 28th days it was done the euthanasia by anesthetic induction and the collection of material qualitative and quantitative histological analysis in which it was taken as parameters the cellularity; quantity and aspects of the collagen fibers and empty spaces. Results ¿ The qualitative analysis of the histological material has revealed differences among all the groups. Concerning to the quantitative analysis, there was difference statistically significant in relation to the number of the fibroblasts in region 5 between the impeded control and unimpeded treated groups, concerning to the empty space, the difference happened between the impeded control and unimpeded treated groups. When evaluated the condition of accelerated eruption it was found significant differences between the impeded control and unimpeded control groups, and it was not found differences between the impeded treated and unimpeded treated groups, showing this way that the hypothyroidism is a systemic condition that inhibits or minimizes the effects of the unimpeded in the acceleration of the dental eruption. Conclusion - All the groups have presented morphological differences when observed the microscopy. The alterations found are more dependent of the functional capacity of the involved cells than the increase or decrease of them. The effects of the hypothyroidism seem to inhibit or minimize the effects of the unimpeded in the stimulus of the increase of dental eruption speed.
Mestrado
Pediatria
Mestre em Saude da Criança e do Adolescente
Vasconcelos, Daniel Fernando Pereira. "Efeito da administração intermitente do fragmento 1-34 do hormonio paratireoideo em defeito fenestrado na mandibula de ratos : analise histomorfometrica". [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288498.
Pełny tekst źródłaTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-13T11:15:57Z (GMT). No. of bitstreams: 1 Vasconcelos_DanielFernandoPereira_D.pdf: 3147772 bytes, checksum: f14ddeae900959b567ea4b605c927b8b (MD5) Previous issue date: 2008
Resumo: A administração intermitente de hormônio paratireóideo (PTH) é capaz de promover anabolismo ósseo, favorecendo a neoformação óssea em condições como osteoporose e reparo de fraturas. Sabendo-se que tanto os tecidos ósseos mandibulares e alveolares como os tecidos periodontais podem responder à administração de PTH de forma intermitente, o objetivo deste estudo foi avaliar histomorfometricamente o efeito da administração de PTH (1-34) em um modelo de defeito periodontal, do tipo fenestrado, na mandíbula de ratos. Foram utilizados neste estudo 32 ratos Wistar machos, com o objetivo de expor a região vestibular da raiz distal do primeiro molar inferior direito. A criação do defeito possibilitou a remoção parcial de ligamento periodontal e do cemento dentário. Após a cirurgia os animais foram separados aleatoriamente em 4 grupos (n=8): Grupo C14: administração intermitente (3 vezes por semana) do veículo de diluição do PTH por 14 dias; Grupo P14: administração intermitente de PTH (1-34) por 14 dias; Grupo C21: injeções intermitentes do veículo de diluição do PTH por 21 dias; Grupo P21: injeções intermitentes de PTH por 21 dias. Os animais foram mortos e preparados para avaliação histomorfométrica dos seguintes parâmetros: I - extensão inicial do defeito, II - extensão do defeito remanescente, III - área do defeito ósseo remanescente, IV - densidade do osso neoformado, V - área do calo formado e marcação para TRAP, VI - área do cemento neoformado, VII - análise do retardo óptico (birrefringência) do ligamento periodontal reinserido sobre a raiz operada. A análise intergrupo demonstrou que os defeitos tinham tamanhos similares inicialmente e que a administração de PTH reduziu significativamente (p<0,05) a extensão e a área do defeito remanescente. Além disso, o PTH aumentou significativamente (p<0,05) a densidade do osso neoformado, a área do calo, o número de osteoclastos presentes no calo formado, a área de cemento neoformado e a birrefringência do ligamento periodontal reinserido. Conclui-se que a administração intermitente de PTH (1-34), em modelo experimental de reparo em de ratos, pode influenciar positivamente o processo de reparação óssea e periodontal.
Abstract: The intermittent PTH administration is known to contribute to bone formation in cases of osteoporosis and bone fractures. Also, it has been reported to reduce periodontitis-related bone loss. The aim of this study was to evaluate the effect of anabolic PTH on periodontal repair and mandibular bone defect in rats. Fenestration defects were created unilaterally at the buccal surface of distal roots of lower first molars in Wistar rats (n=32), and both periodontal ligament and cementum were removed. Animals were then assigned to 4 groups (n=8): 1) C14 - placebo administration for 14 days; 2) P14 - PTH administration for 14 days; 3) C21 - placebo administration for 21 days; and 4) P21 - PTH administration for 21 days. All groups were treated intermittently (3 times a week). All animals were killed and prepared to histomorphometric analysis considering the following parameters: I - extension of the initial defect; II - extension of the remaining defect; III - area of the remaining defect; IV - density of neoformed bone; V - total callus area and staining for tartrate-resistant acidic phosphatase (TRAP); VI - area of the neoformed cementum; VII - polarized light microscopic analysis of root periodontal ligament reattachment. Intergroup analysis showed that the bone defects were initially similar in size (p>0.05). The intermittent PTH administration decreased (p<0.05) both extension and area of the remaining defect, and increased (p<0.05) the neoformed bone density and the total callus area. An increase in TRAP-positive cells was observed in the PTH treated groups (p<0.05). The area of the neoformed cementum and reattachment of the periodontal ligament were also observed to increase concerning PTH-treated groups (p<0.05). Data analysis suggests that the intermittent PTH administration might contribute to bone and periodontal repair in rats.
Doutorado
Histologia e Embriologia
Doutor em Biologia Buco-Dental
Silva, Karla Rovaris da 1987. "Estudo da organização do colágeno e resistência do ligamento periodontal em incisivos de ratos irradiados". [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288476.
Pełny tekst źródłaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-22T06:39:35Z (GMT). No. of bitstreams: 1 Silva_KarlaRovarisda_M.pdf: 5383756 bytes, checksum: f46eb2dfd48068a21c19841f2e4d3581 (MD5) Previous issue date: 2013
Resumo: Os efeitos adversos da radioterapia sobre os tecidos orais vêm sendo estudados com intuito de, cada vez mais, entender como esta age sobre o organismo, bem como para o desenvolvimento de métodos ou substâncias que visem à minimização dessas sequelas. Dentre os tecidos que estão na área de exposição, está o ligamento periodontal, que se afetado, pode ocasionar a perna dentária que impreterivelmente interfere na qualidade de vida do indivíduo. Este trabalho teve como objetivo avaliar o efeito da radiação ionizante sobre o ligamento periodontal do dente incisivo de rato albinus wistar, por meio da microscopia de polarização e do teste de força. A amostra constituiu-se de 30 ratos albinus wistar machos divididos em dois grupos, o grupo controle (15) e o grupo irradiado (15). O grupo irradiado foi submetido à sessão única de radioterapia com dose de 15Gy e após 14 dias todos os animais foram sacrificados. Um animal de cada grupo foi perdido durante a execução do trabalho. Desta forma, sete animais de cada grupo foram submetidos ao teste de resistência do ligamento periodontal e os sete restantes tiveram a organização do colágeno avaliada através da microscopia de polarização. Os resultados mostraram que ambos os testes apresentaram diferença estatisticamente significante entre os grupos (p<0,001). Através dos coeficientes de correlação de Pearson encontrou-se também uma forte correlação entre os resultados dos testes (resistência/polarização) de cada grupo (controle/irradiado) (R = 0,683; p < 0,001). Portanto, concluiu-se que a radioterapia pode levar à diminuição da resistência à força de intrusão e provocou a desorganização do colágeno no ligamento periodontal
Abstract: The adverse effects of radiotherapy on oral tissues have been studied in order to increasingly understand how it works on the body, as well as for the development of methods and substances aimed at minimizing these sequelae. Among the tissues that are in the exposition area, is the periodontal ligament which, when affected, can lead to tooth loss, that unfailingly interferes with quality of life. This study had as purpose to evaluate the effect of ionizing radiation over the periodontal ligament of the incisive tooth of the albinus wistar rat, trough the polarizing microscope and the strength test. The sample was composed of 30 albinus wistar male rats, separated into two groups, the control group (15) and the irradiated one (15). The irradiated group was subjected to an only session of radiotherapy, with a 15Gy dose, and after 14 days all the animals were sacrificed. One animal in each group was lost during the study's execution. Hence, seven animals of each group were subjected to the periodontal's ligament resistance test, and the seven remaining had their collagen organization evaluated trough the polarizing microscopy. The results showed that both tests exhibited statistically significance difference between the groups (p<0,001). Using the Pearson correlation coefficients a strong correlation was also found between the tests results (resistance/polarizing) of each group (control/irradiated) (R = 0,683; p<0,0001). Thereby, the conclusion was that radiotherapy can lead to a diminished resistance to the intrusion strength and to a disorganization of the periodontal's ligament collagen
Mestrado
Radiologia Odontologica
Mestra em Radiologia Odontológica
Nogueira, Alessandra Fonseca Gambini. "Estudo in vitro do efeito de cones de obturação endodôntica na biomodulação de fibroblastos de ligamento periodontal". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/23/23156/tde-27112017-122839/.
Pełny tekst źródłaRoot canal obturation is a fundamental step for successful endodontic treatment. It is desirable that the materials employed at this stage did not adversely interfere with tissue repair but rather stimulate the regeneration of the periapical tissues. Recently, gutta-percha points combined with bioceramic materials were developed for this purpose. Thus, the objective of this study was to investigate the cytotoxic and biomodulatory potential of conventional gutta-percha points, gutta-percha points containing bioceramics and polymer points on periodontal ligament cells in vitro. Culture of periodontal ligament fibroblasts was established from one human third molar. The cells were stimulated with extracts of cones of conventional gutta-percha points, gutta-percha containing bioceramics and polymer points in serial dilution for cell viability test using the MTT assay [Diphenyltetrazolium Bromide 3- (4,5)]. Next, the 1/5 dilution was used to stimulate the cells for 72 h to detect the gene expression of type I collagen and cement protein 1 (CEMP-1) by RT-qPCR. Data were statistically analyzed by means of ANOVA being considered significant values of p <0.05. The results observed was that in a pure 1: 1 extract, there was impairment of cell viability for both the guta-percha cone extract and the Cpoint cone extract and could be considered cytotoxic. At the other dilutions, no significant difference on this parameter was observed. Regarding the gene expression of collagen, no significant differences were observed at the presence of extracts. For CEMP-1, significant induction of gene expression was observed for gutta-percha points. In conclusion, the analysis of the results showed that the gutta-percha and polymer points are the most cytotoxic at pure extract, however gutta-percha was the only material that induced a significant expression of CEMP-1 which assists the tissue repair. Col1 was not induced in any of the samples but was also not inhibited indicating that none of the 3 cone types interfere in tissue repair.
Carvalho, Helen Ramon Esper de. "Remoção mecânica do ligamento periodontal cementário necrosado com escova de Robinson e pedra pomes e com lâmina de bisturi. Análise histomorfométrica e MEV /". Araçatuba : [s.n.], 2004. http://hdl.handle.net/11449/88929.
Pełny tekst źródłaResumo: Um dos fatores importantes no sucesso do reimplante dentário tardio parece ser dependente do tipo de tratamento da superfície radicular. Esse tratamento inclui a remoção do ligamento periodontal cementário necrótico que pode favorecer o aparecimento das reabsorções radiculares externas, maior causa da perda dos dentes reimplantados nessas condições. O objetivo desse estudo foi comparar a efetividade de duas técnicas de remoção mecânica do ligamento periodontal cementário necrosado e a preservação da camada de cemento. Foram utilizadas 45 raízes de pré-molares hígidos extraídos com finalidade ortodôntica. Após a extração os dentes permaneceram por um período de uma hora em meio ambiente e passado esse tempo foram imersos em soro fisiológico por mais dez minutos. A partir desse passo foram divididos em 3 grupos experimentais. Grupo 1: controle, o ligamento periodontal cementário foi mantido. Grupo 2: remoção do ligamento periodontal cementário por meio de raspagem com lâmina de bisturi (RLB). Grupo 3: remoção do ligamento periodontal cementário por meio de escova de Robinson montada em baixa rotação e pasta de pedra pomes e água (RER). Após processamento das peças foram feitos cortes transversais e longitudinais nessas raízes para análise em microscopia óptica e eletrônica de varredura (MEV). Pela análise qualitativa e quantitativa dos resultados concluiu-se que a técnica RER foi mais eficiente que a RLB quanto à remoção do ligamento periodontal cementário, porém ambas preservaram a camada de cemento.
Abstract: One of the important features related to the success of delayed tooth replantation seems to depend on the type of root surface treatment. This treatment encloses the removal of necrotic cemental periodontal ligament, which may favors the occurrence of external root resorptions that are the major cause of loss of teeth replanted in such conditions. The aim of this study was to compare the effectiveness of two techniques for mechanical removal of necrotic cemental periodontal ligament and the preservation of the cementum layer. Forty-five roots of sound premolars extracted for orthodontic purposes were selected. After extraction, the teeth were maintained at room ambient conditions for 1 hour and then immersed in saline for additional 10 minutes. Afterwards, the roots were assigned to three experimental groups. Group 1: control, the cemental periodontal ligament was maintained. Group 2: removal of the cemental periodontal ligament by scaling with a scalpel blade (SBR). Group 3: removal of the cemental periodontal ligament using a Robinson bristle brush, at low-speed, with pumice/water slurry (RBR). After processing of the pieces, the roots were sectioned transversally and longitudinally and the specimens obtained were examined under optical and scanning electron microscopy (SEM). The quantitative and qualitative analyses of the results showed that the RBR technique was more effective than the SBR technique, as regards the removal of the cemental periodontal ligament. Both techniques preserved the cementum layer.
Mestre
Książki na temat "Periodontal ligament"
J, Moxham B., Newman Hubert N i Berkovitz B. K. B, red. The periodontal ligament in health and disease. Wyd. 2. London: Mosby-Wolfe, 1995.
Znajdź pełny tekst źródłaLoescher, Alison Ruth. Studies on the innervation of the periodontal ligament. Birmingham: Universityof Birmingham, 1989.
Znajdź pełny tekst źródłaLee, Nancy May. Design and Optimization of an Integrative Periodontal Ligament Scaffold. [New York, N.Y.?]: [publisher not identified], 2016.
Znajdź pełny tekst źródłaNguyen, Lan Phan. A critique of the paper "Collagen implants do not preserve periodontal ligament homeostasis in periodontal wounds". [Toronto: University of Toronto, Faculty of Dentistry], 1996.
Znajdź pełny tekst źródłaA, Norton Louis, Burstone Charles 1928- i Biology of Tooth Movement Conference (1986 : Farmington, Conn.), red. The Biology of tooth movement. Boca Raton, Fla: CRC Press, 1989.
Znajdź pełny tekst źródłaLin, Deborah G. Storage conditions of avulsed teeth affect the phenotype of cultured human periodontal ligament cells. [Toronto: Faculty of Dentistry, University of Toronto, 1999.
Znajdź pełny tekst źródłaZeev, Davidovitch, Norton Louis A, Harvard Society for the Advancement of Orthodontics. i Harvard School of Dental Medicine., red. Biological mechanisms of tooth movement and craniofacial adaptation: Proceedings of the second international conference held at Tara's Ferncroft Conference Resort, Danvers, Massachusetts, October 19-22, 1995. [Boston, MA?]: Harvard Society for the Advancement of Orthodontics, 1996.
Znajdź pełny tekst źródłaN, Natali Arturo, red. Dental biomechanics. London: Taylor & Francis, 2003.
Znajdź pełny tekst źródłaArturo, Natali, red. Dental biomechanics. New York, NY: Taylor & Francis, 2003.
Znajdź pełny tekst źródłaBerkovitz, B. K. B. The Periodontal Ligament Disease. Wyd. 2. Mosby, 1995.
Znajdź pełny tekst źródłaCzęści książek na temat "Periodontal ligament"
Menicanin, Danijela, K. Hynes, J. Han, S. Gronthos i P. M. Bartold. "Cementum and Periodontal Ligament Regeneration". W Engineering Mineralized and Load Bearing Tissues, 207–36. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22345-2_12.
Pełny tekst źródłaKomaki, Motohiro. "Pericytes in the Periodontal Ligament". W Advances in Experimental Medicine and Biology, 169–86. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11093-2_10.
Pełny tekst źródłaMark Bartold, P. "Bone and Tooth Interface: Periodontal Ligament". W Mineralized Tissues in Oral and Craniofacial Science, 217–30. West Sussex, UK: John Wiley & Sons, Inc.,, 2013. http://dx.doi.org/10.1002/9781118704868.ch26.
Pełny tekst źródłaElçin, Y. Murat, Bülend İnanç i A. Eser Elçin. "Human Embryonic Stem Cell Differentiation on Periodontal Ligament Fibroblasts". W Methods in Molecular Biology, 269–81. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60761-369-5_14.
Pełny tekst źródłaTrubiani, Oriana, i Francesca Diomede. "Xeno-Free Culture of Human Periodontal Ligament Stem Cells". W Methods in Molecular Biology, 87–92. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/7651_2014_122.
Pełny tekst źródłaWilson, A. N., J. Middleton, G. N. Pande i M. L. Jones. "Nonlinear Behaviour of the Periodontal Ligament a Numerical Approach". W Interfaces in Medicine and Mechanics—2, 309–18. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3852-9_32.
Pełny tekst źródłaIssaranggun Na Ayuthaya, Benjar, i Prasit Pavasant. "Influence of Exogenous IL-12 on Human Periodontal Ligament Cells". W Interface Oral Health Science 2016, 217–28. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1560-1_18.
Pełny tekst źródłaElçin, Y. Murat, Bülend İnanç i A. Eser Elçin. "Differentiation of Human Embryonic Stem Cells on Periodontal Ligament Fibroblasts". W Methods in Molecular Biology, 223–35. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/7651_2014_130.
Pełny tekst źródłaFarag, Amro, Cedryck Vaquette, Dietmar W. Hutmacher, P. Mark Bartold i Sašo Ivanovski. "Fabrication and Characterization of Decellularized Periodontal Ligament Cell Sheet Constructs". W Methods in Molecular Biology, 429–38. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2780-8_25.
Pełny tekst źródłaFarag, Amro, Cédryck Vaquette, Dietmar W. Hutmacher, P. Mark Bartold i Saso Ivanovski. "Fabrication and Characterization of Decellularized Periodontal Ligament Cell Sheet Constructs". W Methods in Molecular Biology, 403–12. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-6685-1_23.
Pełny tekst źródłaStreszczenia konferencji na temat "Periodontal ligament"
Kafel, N., J. Kolodziejski, M. Niemiera i M. Reed. "Separation of the periodontal ligament for atraumatic tooth extraction". W 2014 40th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2014. http://dx.doi.org/10.1109/nebec.2014.6972830.
Pełny tekst źródłaKaram, Leandro Z., Maura S. Milczewski i Hypolito J. Kalinowski. "Strain monitoring of the periodontal ligament in pig's mandibles". W OFS2012 22nd International Conference on Optical Fiber Sensor, redaktorzy Yanbiao Liao, Wei Jin, David D. Sampson, Ryozo Yamauchi, Youngjoo Chung, Kentaro Nakamura i Yunjiang Rao. SPIE, 2012. http://dx.doi.org/10.1117/12.975270.
Pełny tekst źródłaMaurtgi, Moustafa, Sharlina binti Mohamad, Siti Noor Fazliah Mohd Noor i Norehan Mokhtar. "Effect of vitamin E on human periodontal ligament fibroblasts". W TRANSLATIONAL CRANIOFACIAL CONFERENCE 2016 (TCC 2016): Proceedings of the 1st Translational Craniofacial Conference 2016. Author(s), 2016. http://dx.doi.org/10.1063/1.4968874.
Pełny tekst źródłaGao, Zhen, i Xiaoting Luo. "Biological Effect of Titanium's Surface Roughness on Periodontal Ligament Cells". W 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162449.
Pełny tekst źródłaMenegotto, G. F., L. Grabarski, H. J. Kalinowski i J. A. Simões. "Trial analysis of swine's periodontal ligament with Bragg grating sensors". W 20th International Conference on Optical Fibre Sensors, redaktor Julian D. C. Jones. SPIE, 2009. http://dx.doi.org/10.1117/12.835231.
Pełny tekst źródłaYang, Yu, Wencheng Tang i Yao jun Wang. "Experimental Analysis of the Elastic Modulus of Periodontal Ligament in Nanoindentation". W ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59040.
Pełny tekst źródłaRahimi, Masoud, i Afsaneh Mojra. "Numerical modeling of hyperfoam behavior of periodontal ligament in mechanical loading". W 2019 26th National and 4th International Iranian Conference on Biomedical Engineering (ICBME). IEEE, 2019. http://dx.doi.org/10.1109/icbme49163.2019.9030376.
Pełny tekst źródłaSi-Eun Kim, Soo-Hyuk Uhm, Doo-Hoon Song, Chong-Kwan Kim, Kwang-Mahn Kim, Kyoung-Nam Kim i Jeon-Geon Han. "Enhanced funtion of human periodontal ligament cells cultured on nanoporous titanium surfaces". W 2012 IEEE 39th International Conference on Plasma Sciences (ICOPS). IEEE, 2012. http://dx.doi.org/10.1109/plasma.2012.6383859.
Pełny tekst źródłaZhurov, Alexei I., Sam L. Evans, Catherine A. Holt i John Middleton. "A Nonlinear Compressible Transversely-Isotropic Viscohyperelastic Constitutive Model of the Periodontal Ligament". W ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67949.
Pełny tekst źródłaWu, Bin, Wencheng Tang i Bin Yan. "A Novel Finite Element Modeling Method for Periodontal Ligament of Impacted Maxillary Tooth". W 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2009). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162218.
Pełny tekst źródłaYou might want to see the page in this language: English.