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1.
Materials (Basel) ; 14(4)2021 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-33671155

RESUMO

After tooth extraction, the alveolar bone undergoes a physiological resorption that may compromise the future placement of the implant in its ideal position. This study evaluated bone density, morphological changes, and histomorphometric results undergone by alveolar bone after applying a new biomaterial composed of calcium phosphate modified with silicon (CAPO-Si) compared with hydroxyapatite of bovine origin (BHA). Alveolar ridge preservation (ARP) was performed in 24 alveoli, divided into a test group filled with CAPO-Si and a control group filled with BHA. Three months later, the mineral bone density obtained by the biomaterials, horizontal and vertical bone loss, the degree of alveolar corticalization, and histomorphometric results were evaluated. Both biomaterials presented similar behavior in terms of densitometric results, vertical bone loss, and degree of alveolar corticalization. Alveoli treated with CAPO-Si showed less horizontal bone loss in comparison with alveoli treated with BHA (0.99 ± 0.2 mm vs. 1.3 ± 0.3 mm), with statistically significant difference (p = 0.017). Histomorphometric results showed greater bone neoformation in the test group than the control group (23 ± 15% vs. 11 ± 7%) (p = 0.039) and less residual biomaterial (5 ± 10% vs. 17 ± 13%) (p = 0.043) with statistically significant differences. In conclusion, the ARP technique obtains better results with CAPO-Si than with BHA.

2.
Cient. dent. (Ed. impr.) ; 16(3): 167-172, sept.-dic. 2019. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-185990

RESUMO

Introducción: En el presente estudio se evalúa la densidad ósea alcanzada, mediante las unidades Hounsfield, por un nuevo biomaterial, compuesto por fosfato cálcico con agregado de silicio, en comparación con la hidroxiapatita de origen bovino en la preservación alveolar pos-textracción. La preservación alveolar pos-textracción se presenta como una técnica quirúrgica dirigida a reducir el colapso del reborde alveolar tras la extracción dental mediante la utilización de un biomaterial. La finalidad del tratamiento es facilitar la posterior rehabilitación implantológica. Material y método: Se llevó a cabo un estudio sobre 6 pacientes procedentes de la Facultad de Odontología de la Universidad Complutense de Madrid a los que se les realizó la técnica de preservación alveolar postextracción. Se establecieron dos grupos: un grupo test en el que el alveolo se rellenó con fosfato cálcico con agregado de silicio y un grupo control en el que se rellenó con hidroxiapatita de origen bovino. Transcurridos 3 meses, se realizó una tomografía computerizada de haz de cono para evaluar la densidad ósea alcanzada por los biomateriales. Resultados: La densidad mineral media alcanzada en el grupo tratado con fosfato cálcico con agregado de silicio fue de 1.100,40 ± 111,19 unidades Hounsfield, mientras que en el grupo que fue tratado con hidroxiapatita de origen bovino fue de 1.029,46 ± 95,16 unidades Hounsfield. Conclusiones: Ambos biomateriales parecen presentar un comportamiento similar en cuanto a los resultados densitométricos obteniendo una densidad superior a 1.000 unidades Hounsfield, siendo el fosfato cálcico con agregado de silicio el que mayor densidad presenta


Introduction: In the present study, bone density from the new biomaterial composed by calcium phosphate and added silica is compared with bovine hydroxyapatite by means of Hounsfield units in alveolar ridge preservation. Alveolar ridge preservation is a surgical technique proposed to reduce bone resorption caused by dental extraction, using a bone graft. This technique ́s final goal is to facilitate implant insertion and rehabilitation. Materials and methods: A study was carried out on 6 patients from the Faculty of Dentistry of the Complutense University of Madrid performing the technique of alveolar ridge preservation. Two groups were established, a test group in which the alveolar socket was filled with calcium phosphate and added silica and a control group where the socket was filled with bovine hydroxyapatite. After 3 months, a cone-beam computed tomography was performed to evaluate the bone density achieved by both biomaterials. Results: The average bone density achieved in the group treated with calcium phosphate and added silica was 1100,40 ± 111,19 Hounsfield units whereas in the group treated with bovine hydroxyapatite the average bone density was 1029,46 ± 95,16 Hounsfield units. Conclusions: Both biomaterials seem to present a similar behaviour in terms of densitometric results obtaining a density greater than 1000 Hounsfield units, having the calcium phosphate and added silica the highest density


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Densitometria , Materiais Biocompatíveis/uso terapêutico , Fosfatos de Cálcio/uso terapêutico , Durapatita/uso terapêutico , Projetos Piloto , Estudos de Coortes , Densidade Óssea , Extração Dentária , Implantes Dentários , Transplante Ósseo/métodos , Transplante Ósseo/reabilitação , Estudos Retrospectivos
3.
Cient. dent. (Ed. impr.) ; 15(1): 7-14, ene.-abr. 2018. tab
Artigo em Espanhol | IBECS | ID: ibc-172854

RESUMO

La arteritis de células gigantes es una vasculitis primaria caracterizada por un infiltrado granulomatoso que obstruye la pared vascular provocando procesos isquémicos. Tiene gran importancia en odontología por su clínica, ya que puede afectar a la cavidad oral cursando con dolor odontogénico, necrosis lingual, necrosis labial, claudicación mandibular, hipoestesia mentoniana, inflamación facial y trismus. El conocimiento básico de las manifestaciones clínicas de la enfermedad permitirá al odontólogo evitar complicaciones como la ceguera o el desarrollo de una crisis suprarrenal que acabe con la vida del paciente


Giant cell arteritis is a primary vasculitis characterized by a granulomatous infiltrate that obstructs the vascular wall causing ischemic processes. It is of great importance in dentistry because of its clinical manifestations, as it can affect the oral cavity producing odontogenic pain, tongue necrosis, lip necrosis, jaw claudication, hypoesthesia of the chin, facial swelling and trismus. Basic knowledge of the clinical manifestations of the disease will allow the dentist to avoid complications such as blindness or the development of an adrenal crisis that could kill the patient


Assuntos
Humanos , Arterite de Células Gigantes/complicações , Diagnóstico Bucal/métodos , Doenças da Boca/epidemiologia , Assistência Odontológica/métodos , Trismo/epidemiologia , Odontalgia/epidemiologia , Doenças Mandibulares/epidemiologia , Hipestesia/epidemiologia
4.
Cient. dent. (Ed. impr.) ; 14(2): 99-103, mayo-ago. 2017. tab
Artigo em Espanhol | IBECS | ID: ibc-165672

RESUMO

La miastenia gravis es el trastorno neuromuscular más frecuente caracterizado por una afectación en la transmisión del impulso nervioso que repercutirá directamente en el tratamiento odontológico del paciente. Tiene gran importancia en odontología por su clínica, ya que afecta a la musculatura facial y masticatoria por lo que se deberá seguir un protocolo de actuación. El odontólogo deberá tener conocimiento de las interacciones y efectos secundarios medicamentosos para poder evitarlos durante el procedimiento, ya que estos pueden dar lugar a una crisis miasténica que acabe con la vida del paciente (AU)


Myasthenia gravis is the most common neuromuscular disorder characterized by an affection in the transmission of the nerve impulse that will directly affect the dental treatment of the patient. It is of great importance in dentistry because of its clinical manifestations, as it affects the facial and masticatory musculature, so a protocol of action should be followed. The dentist must be aware of the interactions and side effects of the medication in order to avoid them during the procedure, as these can lead to a myasthenic crisis that could kill the patient (AU)


Assuntos
Humanos , Doenças Estomatognáticas/terapia , Miastenia Gravis/classificação , Incompatibilidade de Medicamentos , Miastenia Gravis/tratamento farmacológico , Plasmaferese , Inibidores da Colinesterase/uso terapêutico , Imunossupressores/uso terapêutico
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