Reaction of rat connective tissue to implanted dentin tubes filled with mineral trioxide aggregate or calcium hydroxide

Holland, R; Souza, Valdir de; Nery, Mauro Juvenal; Filho, José Arlindo Otoboni; Bernabé, Pedro Felício Estrada; Dezan, Elói

doi:10.1016/s0099-2399(99)80134-4

Cited by 363 publications

(523 citation statements)

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“…Scientific investigations have shown that MTA can release various ions thatconduct and induct hard-tissue formation 4,17 .MTA presents some advantages,including its physical characteristics thatguarantee expansion during the attachment, which favors sealing, and the biological properties ofcalcium hydroxide 3,24 . MTA forms calcium oxide when in contact with water, which then, when in contact with tissue fluids, forms calcium hydroxide and triggers the same repair process in the tissue 11 .Some recentstudies have reported on the success of MTA as a root apical barrier, with rates ranging from 76.5% to 91% 10,20 .…”

Section: Discussionmentioning

confidence: 99%

Orthograde Apical Application of an MTA Plug in a Tooth without Constriction - A Case Report

2016

IJSR

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Abstract:The periapical area in teeth with chronic lesions is characterized by changes in the adjacent bone structure and periodontal ligaments, as well as in the cement and dentine. In a large percentage of cases, the apical physiological constriction is ether absent or expanded. The absence of a constriction makes it a challenge to achieve satisfactory treatment results.The present case report describes the re-treatment of a case of a mandibular molar, complicated by lack of constriction and a separated endodontic instrument. Mineral trioxide aggregate (MTA) was used for a 5-mm apical plug to avoid overfilling of the sealer when the root canal was definitely obturated. The periapical radiographs showed satisfactory images of periapical bone density and the tooth was asymptomatic on precision. MTA is proved to be an appropriate material for apical sealing in cases with resorption, as it leads to avoidance of apical surgical procedures with a similar prognostic outcome.

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Section: Discussionmentioning

confidence: 99%

Orthograde Apical Application of an MTA Plug in a Tooth without Constriction - A Case Report

2016

IJSR

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“…PC and MTA contain calcium oxide, which, when mixed with water, forms calcium hydroxide, which induces an increase of pH by dissociation of calcium and hydroxide ions 6,[21][22] .…”

Section: Discussionmentioning

confidence: 99%

“…The MTA and Portland cement has similarities in their chemical composition, physical properties, biocompatibility and tissue response [5][6][7][8][9] . Therefore, the aim of this study was to evaluate the antimicrobial activity of MTA e PC against some selected cariogenic bacteria.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of cariogenic antibacterial activity of mineral trioxide aggregate and Portland cement

Júnior

Sobral

Sampaio

et al. 2015

RGO, Rev. Gaúch. Odontol.

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ObjectiveThe objective of this study was to evaluate the antimicrobial activity of Mineral trioxide aggregate e Portland cement against some selected cariogenic bacteria. Methods Wells were made of approximately 0.5 mm in diameter, in solid culture media and immediately filled with cement. Twelve samples of each material were obtained for the realization of the agar diffusion method. These samples were tested with Streptococcus mutans (ATCC 700610), Enterococcus faecalis (ATCC 29212), Lactobacillus acidophilus (UFV) and Lactobacillus casei (UNICAMP). Petri plates containing Tripticase soy Agar (TSA) were used for the growth of Streptococcus mutans and Enterococcus faecalis, and plates of Man Rogosa & Sharpe Agar (MRS) for the Lactobacillus acidophilus and Lactobacillus casei. After 48 hours of incubation, it was made the measurement of inhibition halos with the aid of manual caliper. ResultsThe diameters obtained to MTA (2.50 ± 0.00;2,92 ± 0.63; 2.58 ± 0.38), PC (1.17 ± 0.29; 2.00 ± 0.43; 1.33 ± 0.14) and calcium hydroxide cement (3.83 ± 0.29; 3.00 ± 0.00 ± 2.58 ± 0.72) ResultadosOs diâmetros obtidos do MTA (2.50 ± 0.00; 2,92 ± 0.63; 2.58 ± 0.38), CP (1.17 ± 0.29; 2.00 ± 0.43; 1.33 ± 0.14) e cimento de hidróxido de cálcio (3.83 ± 0.29; 3.00 ± 0.00 ± 2.58 ± 0.72) foram expressos em milímetros e submetidos ao teste de Tukey (p<0.05). Conclusão METHODSThe tested materials were: MTA (Angelus Soluções Odontológicas, Londrina, Brasil), Portland cement (CP II -F32, ITAPESSOCA AGRO-INDUSTRIAL S.A., Goiana, Brasil) and calcium hydroxide paste (Reagen TM).The antimicrobial activity of the materials was evaluated by the Agar diffusion method against four different strains.The strains used for analysis were Streptococcus mutans (ATCC 700610), Enterococcus faecalis (ATCC 29212), Lactobacillus acidophilus and Lactobacillus casei isolated by the Laboratory of Microbiologic Science (Federal University of Viçosa -MG (UFV) and University State of Campinas -UNICAMP, SP, Brazil), respectively.Of each bacterial culture tested, it was held a concentration suspension of approximately 5x108 of colonies per mL, corresponding to 0.5 of Mc Farland em range of sterile medium Trypticase Soy Browth (TSBMerck). The Streptococcus mutans and Enterococcus faecalis suspensions were inoculated with spread plate in the middle of Sodium Tioglicolate (Merck) culture and Lactobacillus and Lactobacillus acidophilus casei were inoculated in the culture medium Man Rogosa & Sharpe Agar (MRS-HIMEDIA). Subsequently, the plates were incubated at 35 ± 1°C for 24/48h and the halos of inhibition were expressed in millimeters, using a caliper manual.A total of 12 plates were employed, each microorganism was tested in triplicate. Three cavities, measuring 4mm in diameter were made in each agar plate using a copper puncher and then completely filled with freshly manipulated product to be tested.Positive (CaOH) and negative controls (sterile growing medium) were tested using the same methodology and under the same conditions of the experiment.All cult...

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“…Sin embargo, su aparente éxito en la terapia pulpar vital ha sido cuestionado, ya que genera necrosis superficial del tejido pulpar cuando es colocado en contacto directo con este en su estado puro, gracias a su pH alcalino (pH 12), siendo cáustico para el tejido pulpar [4]. Estudios han mostrado que el hidróxi-do de calcio es muy tóxico para las células, además de presentar un efecto de disolución del tejido, lo que hace que su uso en terapias pulpares sea cuestionado [5][6][7][8].…”

Section: Introductionunclassified

Apexogénesis de un molar inferior permanente joven con MTA

Ospina

Builes

2013

Rev. nac. odontol.

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Cómo citar este artículo: Callejas Ospina A, Jaramillo Builes WA. Apexogénesis de un molar inferior permanente joven con mta. Revista Nacional de Odontología. 2013; 9(16): 93-97. Resumen. Uno de los principales objetivos de la terapia endodóntica es realizar una limpieza químico-mecánica del sistema de conductos radiculares con la eliminación completa del tejido pulpar en dientes que tienen su desarrollo completo y han sufrido algún tipo de patología pulpar; sin embargo, hay casos en los que el objetivo es mantener parte de ese tejido para promover el desarrollo de las raí-ces en dientes que han sufrido algún tipo de afección y no han terminado aún su formación radicular. Para estos casos, la apexogénesis es un tratamiento que permite inducir el cierre apical de dientes con formación radicular incompleta. Este reporte de caso describe el tratamiento de una niña de 7 años de edad que consulta al Servicio de Urgencias de la Universidad Cooperativa de Colombia, sede Medellín, relatando dolor ocasional en la zona mandibular izquierda. Al examen clínico el diente afectado fue examinado clínica y radiográficamente; en el primer molar inferior permanente izquierdo se observó una caries extensa y ápices inmaduros. Se le realizó un procedimiento conservador de apexogénesis con mta y seguimiento a un año evidenciando el cierre apical de sus raíces totalmente asintomático.Palabras clave: apexogénesis, ápice radicular inmaduro, dolor, hidróxido de calcio, mta, pulpotomía. Apexogenesis of a First Permanent Mandibular Molar with mtaAbstract. One of the main goals of endodontic therapy is to chemically and mechanically clean the root canal system with the complete removal of the pulp tissue in teeth that are fully grown and have suffered some kind of pulp pathology. However, there are cases in which the goal is to keep some of that tissue to promote root development in teeth that have undergone some type of pathology and have not yet finished their root formation. For these cases, the apexogenesis is a treatment that can induce apical closure of teeth with incomplete root formation. This case report describes treatment of a 7 year old girl that consulted at the Department of Dental Emergencies of the Universidad Cooperativa de Colombia with an occasional pain on her left lower jaw. The tooth responsible was examined clinically and through x-rays. On clinical examination, the first permanent left mandibular molar had extensive caries and immature apices. Radiographic examination revealed an immature root. We performed conservative treatment (apexogenesis) and then a 1 year follow up that evidenced apical closure and the disappearance of the symptoms.Keywords: apexogenesis, immature tooth root apex, pain, calcium hydroxide, mta, pulpotomy. Apexogênese de um molar inferior permanente jovem com mtaResumo. Um dos principais objetivos da terapia endodôntica é realizar uma limpeza químico-mecânica do sistema de condutos radiculares com a eliminação completa do tecido pulpar em dentes que têm seu desenvolvimento completo e sofrem ...

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Reaction of rat connective tissue to implanted dentin tubes filled with mineral trioxide aggregate or calcium hydroxide

Cited by 363 publications

References 14 publications

Orthograde Apical Application of an MTA Plug in a Tooth without Constriction - A Case Report

Orthograde Apical Application of an MTA Plug in a Tooth without Constriction - A Case Report

Evaluation of cariogenic antibacterial activity of mineral trioxide aggregate and Portland cement

Apexogénesis de un molar inferior permanente joven con MTA

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