Scielo RSS <![CDATA[Revista Estomatológica Herediana]]> http://dev.scielo.org.pe/rss.php?pid=1019-435520190002&lang=pt vol. 29 num. 2 lang. pt <![CDATA[SciELO Logo]]> http://dev.scielo.org.pe/img/en/fbpelogp.gif http://dev.scielo.org.pe <![CDATA[<b>Clinical Simulation, Virtual Haptic Reality (VHR)</b>: <b>Teaching tool for dental education</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200001&lng=pt&nrm=iso&tlng=pt <![CDATA[<b>Atividade antifúngica do a-terpinen sobre Candida albicans</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200002&lng=pt&nrm=iso&tlng=pt Objetivo: avaliar a atividade antifúngica do a- terpinen sobre culturas planctonicas e biofilme de Candida albicans. Material e Métodos: Primeiramente, foi determinada a Concentração Inibitória Mínima (CIM) e a Concentração Fungicida Mínima (CFM) do a-terpinen sobre microrganismos planctônicos. A Nistatina foi utilizada como controle positivo. Biofilme de Candida albicans foi desenvolvido e, após o tratamento com diferentes concentrações de α-terpinen, foi quantificado em UFC/mL, além da atividade metabólica das células ser avaliada por XTT. Resultados: a menor concentração capaz de inibir o crescimento (CIM) foi 0,2 % para o a-terpinen e 4 µg/mL para a Nistatina. Na CIM, os resultados mostraram que a partir da concentração 0,05 % de α-terpinen e 2 µg/mL de Nistatina houve diminuição de C.albicans quando comparado ao controle. A CFM foi para a-terpinen 0,2 % e Nistatina 8 µg/mL. Na quantificação as concentrações eficazes foram de α-terpinen (0,1%) e Nistatina (128µg/mL), e no teste do XTT, observou-se que α -terpinen (0,1%) e Nistatina (256µg/mL) diminuem a viabilidade quando comparado com o controle. Conclusão: Assim, pode-se afirmar que α -terpineol pode ser uma alternativa para tratamento de infecções fúngicas.<hr/>Objective: to evaluate the antifungal activity of a-terpinen on planktonic cultures and biofilm of Candida albicans. Material and Methods: first, Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (CFM) of a-terpinen were determined. Nystatin was used as a positive control. Biofilm of Candida albicans was developed and, after treatment with different concentrations of a-terpinen, was quantified in CFU/mL, in addition to metabolic activity of the cells being evaluated by XTT. Results: the lowest concentration able to inhibit the growth (MIC) was 0.2% for a-terpinen and 4 µg / mL for Nystatin. Results showed that from the concentration 0.05% of α -terpinen and 2 µg / mL of Nystatin, there was a decrease of Candida albicans when compared to the control, in planktonic culture. CFM was 0.2% for α -terpinen and 8 µg / mL for Nystatin. Regarding the quantification, effective concentrations were α-terpinen (0.1%) and Nystatin (128 µg/mL), and in the XTT test, α-terpinen (0.1%) and Nystatin (256 µg/mL) decreased metabolic activity when compared to control. Conclusion: Thus, it can be stated that a-terpineol may be an alternative for the treatment of fungal infections. <![CDATA[<b>Fit of Cobalt-Chromium alloy copings fabricated with two casting techniques on two termination lines</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200003&lng=pt&nrm=iso&tlng=pt Las técnicas de cera perdida colado por centrifugación convencional, son técnicas vigentes para obtener cofias de Cobalto-Cromo (Co-Cr) para coronas metalcerámica. Objetivo: Evaluar in vitro, la adaptación marginal e interna de cofias unitarias de aleación Co-Cr, realizadas sobre dos líneas de terminación: chamfer y bisel, fabricadas con las técnicas de cera perdida colada por centrifugación convencional (CPCC) y por inducción (CPCI). Materiales y métodos: Se evaluó la adaptación marginal e interna de 13 cofias unitarias de aleacion Co-Cr para cada tecnica y línea de terminación, usando la técnica de replica de silicona. Las muestras fueron divididas en sentido vestíbulo-palatino y en sentido mesio-distal, observadas en un estéreomicroscopio a un aumento de 40X y se evaluó la zona cervical, axial y oclusal. Resultados: Los analisis estadisticos incluyeron la prueba t de Student y U Mann-Whitney, previamente se evaluo los supuestos de normalidad con la prueba de Shapiro-Wilk para analizar diferencias estadisticamente significativas entre los grupos (p<0.05). La discrepancia marginal fue menor a 120 µm y la discrepancia interna menor a 350µm para ambas líneas de terminación y técnica de colado. Conclusiones: Los resultados en la adaptación marginal e interna de cofias con líneas de terminación chamfer y bisel fabricadas con las técnicas de cera perdida colada por centrifugación convencional e inducción, los valores descriptivos no fueron concluyentes, ya que en la mayoría de los puntos evaluados no existió diferencia estadísticamente significativa. Además en las dos líneas de terminación chamfer y bisel se encontraron rangos clínicamente aceptables.<hr/>The techniques of lost wax cast by conventional centrifugation are current techniques to obtain Cobalt-Chrome (Co-Cr) copings for metalceramic crowns. Objective: Evaluate in vitro, the marginal and internal adaptation in unitary Co-Cr alloy copes, made on two termination lines: chamfer and bevel, manufactured with the techniques of lost wax cast by conventional centrifugation (CPCC) and by induction (CPCI), according to type of cut, area and measurement points. Materials and methods: The marginal and internal adaptation of 13 co-units of Co-Cr alloy for each technique and termination line was evaluated. The silicone replication technique was used. The samples were divided in the vestibulo-palatal direction and in the mesio-distal direction, observed in a stereomicroscope at a 40X magnification and the cervical, axial and occlusal areas were evaluated. Results: Statistical analyzes included the Student’s t-test and U Mann-Whitney, previously the assumptions of normality were evaluated with the Shapiro-Wilk test to analyze statistically significant differences between the groups (p <0.05). The marginal discrepancy was less than 120 µm and the internal discrepancy less than 350µm. Conclusion: The results in the marginal and internal adaptation of copings with chamfer termination lines and bevel fabricated with the techniques of lost wax cast by conventional centrifugation and induction were not conclusive to determine which technique is the best since in most of the points evaluated there was not a statistically significant difference. Also in the two lines of termination cnamfer and bevel, there were found clinical acceptable ranges. <![CDATA[<b>Tomographic features of the maxillary sinus septa in patients of the dental clinic of the Universidad Peruana Cayetano Heredia</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200004&lng=pt&nrm=iso&tlng=pt Los septos del seno maxilar son variantes anatómicas que se forman como resultado de los residuos de la hipoplasia en diferentes áreas del proceso alveolar siendo de forma, tamaño y número variable. Su hallazgo se puede realizar mediante radiografías panorámicas de rutina. La importancia de un septo en el seno maxilar es que puede generar modificaciones para las cirugías, pudiendo ser necesario abrir dos o más ventanas quirúrgicas para su remoción. Objetivo: La finalidad de este estudio fue analizar los rasgos tomográficos de los septos del seno maxilar en pacientes que asistieron entre los años 2014 - 2016 a la clínica dental docente de la Universidad Peruana Cayetano Heredia. Materiales y métodos: Esta investigación fue de tipo transversal y descriptivo, para ello se examinaron 813 tomografías computarizadas volumétricas. La prueba de chi cuadrado y la estadística descriptiva se usaron para el análisis, con un intervalo de confianza al 95%, con un valor p < 0,05. Resultados: 298 pacientes presentaron septos, presentando mayor porcentaje los septos congénitos (69.2%) y fueron más comunes en pacientes de sexo femenino con un 36%.Conclusiones: prevalecieron los septos de tipo congénito, lo que indica que se formaron a partir del desarrollo radicular.<hr/>The septa of the maxillary sinus are anatomical variants that are formed as a result of the residues of hypoplasia in different areas of the alveolar process, being of variable shape, size and number.Your finding can be made using routine panoramic radiographs. The importance of a septum in the maxillary sinus is that it can generate modifications for maxillary sinus surgeries, and it may be necessary to open two or more surgical windows for its removal. Objective: The purpose of this study was to analyze the tomographic features of the maxillary sinus septa in patients who attended the teaching dental clinic of the Universidad Peruana Cayetano Heredia between 2014- 2016. Materials and methods: This research was cross-sectional and descriptive, for which 813 cone beam CT scans were examined. Chi square test and descriptive statistics were used for the analysis, with a 95% confidence interval, with a value p < 0.05. Results: 298 patients presented septa, with a higher percentage of congenital septa (69.2%) and were more common in female patients with 36%. Conclusions: the congenital type septa prevailed, which indicates that they were formed from root development. <![CDATA[<b>Enzyme levels of lactate dehydrogenase in saliva according to the condition periodontal</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200005&lng=pt&nrm=iso&tlng=pt Objetivo: Comparar los niveles enzimáticos de lactato deshidrogenasa (LDH) en la saliva según la condición periodontal. Material y métodos: Estudio descriptivo, transversal. Se incluyeron 40 pacientes entre 23 y 73 años de edad, de una clínica especializada en odontología. Hubo 10 pacientes en cada grupo: uno control (periodontalmente sanos) y tres de estudio. Las muestras de saliva no estimulada (2 ml) fueron recogidas en frascos para muestra de esputo, directamente de la boca; se trasladaron a tubos Eppendorf de 2 ml y se centrifugaron a 300 rpm por 10 minutos. Para evaluar la actividad enzimática, fueron colocados en el analizador automático “Vitalab Selectra II” (vital cientific, Holanda) con el reactivo LDH-P UV AA líquido, para muestras de suero o plasma. El dinucleótido de nicotinamida y adenina (NADH) consumido, fue directamente proporcional a la actividad de LDH en la muestra de saliva. Los datos se analizaron con las pruebas de Kruskal-Wallis y post hoc de Dunn-Bonferroni. Resultados: Se encontró diferencias significativas en los niveles de LDH entre los pacientes con periodontitis crónica generalizada frente a los periodontalmente sanos y en fase de mantenimiento (p<0,01). También hubo diferencia significativa (p=0,006) entre los valores de LDH de los pacientes con periodontitis crónica localizada y los periodontalmente sanos. Conclusiones: Los niveles enzimáticos de LDH están disminuidos en los pacientes en fase de mantenimiento periodontal respecto a los pacientes con periodontitis crónica generalizada, así mismo estos valores son muy cercanos a los pacientes periodontalmente sanos y con periodontitis crónica localizada.<hr/>Objective: To compare those levels enzyme of lactate dehydrogenase (LDH) in the saliva according to the condition periodontal. Material and methods: Descriptive, cross-sectional study. It was included 40 patients between 23 and 73 years, of a clinic specializing in dentistry. There were 10 patients in each group: one control (periodontally healthy) and three study. Not stimulated saliva samples (2 ml) were collected in vials for sample of sputum, directly from the mouth; they moved to 2 ml Eppendorf tubes and centrifuged at 300 rpm for 10 minutes. To assess enzymatic activity, they were placed in the automatic Analyzer “Vitalab Selectra II” (life science, the Netherlands) with reagents LDH-P UV AA liquid for serum or plasma samples. The dinucleotide of NICOTINAMIDE and adenine (NADH) consumed, was directly proportional to the activity of LDH in the saliva samples. The data were analyzed with post hoc Bonferroni-Dunn and Kruskal-Wallis tests. Results: It was found significant differences in the levels of LDH among patients with generalized chronic periodontitis versus periodontally healthy and in phase of maintenance (p<0.01). Also there was difference significant (p= 0.006) between the values of LDH of them patients with localized chronic periodontitis and the periodontally healthy. Conclusions: Enzyme LDH levels are decreased in patients during periodontal maintenance in respect to patients that have generalized chronic periodontitis, also these values are very close to periodontally healthy patients and localized chronic periodontitis. <![CDATA[<b>Osteoma em côndilo mandibular associado à síndrome de gardner: relato de caso</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200006&lng=pt&nrm=iso&tlng=pt Os osteomas geralmente são lesões solitárias, de crescimento lento e assintomáticas. Os locais de ocorrência mais comuns são o corpo da mandíbula e o côndilo, mas quando envolvem esta região podem causar alterações na oclusão do paciente, desvio progressivo e lento de linha média, assim como aumento do volume facial acompanhado de dor e limitação de abertura bucal. Cerca de 90% dos pacientes portadores da Síndrome de Gardner apresentam anormalidades esqueléticas, fazendo os osteomas as lesões mais frequentes e de maior ocorrência em seios paranasais e nos maxilares. O objetivo deste trabalho é relatar o caso clínico de uma paciente do gênero feminino, portadora de Síndrome de Gardner com osteoma localizado em côndilo mandibular esquerdo que, devido aos sintomas relatados pelo paciente, foi submetida à ressecção cirúrgica por meio de acesso intra oral para melhor abordagem da lesão e que evoluiu para a solução da sintomatologia apresentada como queixa principal quando procurou o serviço de Cirurgia e Traumatologia Buco-maxilo-facial.<hr/>Osteomas are usually solitary, slow-growing and asymptomatics lesions. The most common sites of occurrence are condyle and jaw body. Osteomas involving condyle can cause changes in patient’s occlusion, progressive and slow deviation of the midline, as well as increased facial volume accompanied by pain and limited mouth opening. An osteoma located in mandible border is typical of the Gardner’s Syndrome. There are many clinical features of this syndrome, which can affect the skin, endocrine system and orofacial area. About 90% of patients with this condition have skeletal abnormalities, making osteomas the most frequent lesions in the paranasal sinuses and jaws. The objective of this work is to report the clinical case of a female patient with Gardner’s Syndrome with osteoma located in the left mandibular condyle, who was submitted to resection of the lesion. <![CDATA[<b>Diagnosis, planning, and restoring treatment of cracked syndrome tooth</b>: <b>case report - 7-year follow-up</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200007&lng=pt&nrm=iso&tlng=pt Se describe y reporta el diagnóstico, tipo de tratamiento y seguimiento de un caso con el síndrome del diente fisurado. Una paciente de 26 años acusaba sensibilidad a los cambios térmicos y a la oclusión en el lado izquierdo de la mandíbula. Al examen clínico se observó dos grietas o fisuras pigmentadas en las superficies bucales y linguales de la pieza 36. La colocación de una restauración directa con resina compuesta resolvió los síntomas y alivió por completo el dolor. Dicha situación persistió incluso en el control realizado 7 años después. El diagnóstico y tratamiento para el caso descrito dio como resultado un completo alivio y mantenimiento de la situación alcanzada siete años después.<hr/>This case report describes a cracked tooth syndrome and reports on its diagnosis, type of treatment and monitoring. A 26-year-old female patient complained of thermal and chewing sensitivity in the left side of her mandible. Clinical examination revealed two pigmented cracks on the buccal and lingual surfaces of tooth 36. The choice of a direct restorative treatment with composite resin led to the resolution of symptoms and complete relief of pain, which persisted in a 7-year monitoring period. The diagnosis and treatment of the case described here resulted in complete pain relief and maintenance of normal conditions seven years later. <![CDATA[<b>Mouth floor muscles in TEM vs. IRM</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200008&lng=pt&nrm=iso&tlng=pt El presente artículo de revisión fue realizado para comparar detalles imagenológicos de resonancia magnética y tomografía espiral multicorte de las estructuras anatómicas del piso de boca; esta es una región desafiante de la cavidad oral para el odontólogo ya que se encuentra constituida de tejidos blandos, vasculares, glandulares y nerviosos, a su vez carece de tejidos óseos volviéndola mucho más susceptible a patologías. Por ello la resonancia magnética es el estudio de preferencia para los tejidos blandos pues permite conocer con más facilidad la anatomía y a la tomografía espiral multicorte ideal para el análisis de tejidos duros, sin embargo puede evaluarse el piso de boca sin ser el estudio imagenológico indicado para esta. El presente trabajo es una recopilación de artículos en bases de datos e internet con el fin de comparar detalles imagenológicos entre la resonancia magnética y tomografía espiral multicorte.<hr/>This review article was conducted to compare magnetic resonance imaging and multislice spiral tomography of floor of mouth anatomical structures; this is a challenging region of oral cavity for dentist since it is made up of soft, vascular, glandular and nervous tissues, in turn lacks bone tissues, making it much more susceptible to pathologies. Therefore, magnetic resonance is the preference study for soft tissues because it allows knowing more easily anatomy and multislice spiral tomography ideal for hard tissues analysis, however floor of mouth can be evaluated without being the imaging study indicated for is. The present work is a compilation of articles in databases and internet in order to compare both: magnetic resonance and multislice spiral tomography. <![CDATA[<b>Importance of the detection of supernumerary teeth with conic beam computed tomography</b>]]> http://dev.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1019-43552019000200009&lng=pt&nrm=iso&tlng=pt El presente artículo de revisión fue realizado para comparar detalles imagenológicos de resonancia magnética y tomografía espiral multicorte de las estructuras anatómicas del piso de boca; esta es una región desafiante de la cavidad oral para el odontólogo ya que se encuentra constituida de tejidos blandos, vasculares, glandulares y nerviosos, a su vez carece de tejidos óseos volviéndola mucho más susceptible a patologías. Por ello la resonancia magnética es el estudio de preferencia para los tejidos blandos pues permite conocer con más facilidad la anatomía y a la tomografía espiral multicorte ideal para el análisis de tejidos duros, sin embargo puede evaluarse el piso de boca sin ser el estudio imagenológico indicado para esta. El presente trabajo es una recopilación de artículos en bases de datos e internet con el fin de comparar detalles imagenológicos entre la resonancia magnética y tomografía espiral multicorte.<hr/>This review article was conducted to compare magnetic resonance imaging and multislice spiral tomography of floor of mouth anatomical structures; this is a challenging region of oral cavity for dentist since it is made up of soft, vascular, glandular and nervous tissues, in turn lacks bone tissues, making it much more susceptible to pathologies. Therefore, magnetic resonance is the preference study for soft tissues because it allows knowing more easily anatomy and multislice spiral tomography ideal for hard tissues analysis, however floor of mouth can be evaluated without being the imaging study indicated for is. The present work is a compilation of articles in databases and internet in order to compare both: magnetic resonance and multislice spiral tomography.