• Asociación de la clasificación de pell y gregory con la clasificación de ezoddini en radiografías panorámicas de la Clínica Docente de la Universidad peruana de Ciencias Aplicadas durante el periodo febrero 2012 – junio 2014

      Ghersi Miranda, Hugo; Asencios Hidalgo, Félix Pompeyo (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-08-10)
      Background: The aim of the study was to determine the association between Association of Pell and Gregory classification with the Ezoddini classification in panoramic radiographs of patients attended in the UPC clinic during 2012 – 2014. Material and Methods: A descriptive, transversal and retrospective observational study was conducted. 499 panoramic radiographs of patients attended in the UPC clinic during 2012 and 2014 were evaluated. As inclusion criteria was considered patients older than 20 years with the two lower third molars. Panoramic radiographs with distortion and radiographs with the third molars in Nolla stage 0-9 were excluded. To determine the relation of the roots of the third molars used the Ezoddini classification and to determinate the position of the third molars Pell & Gregory was used. Results: The results were that the relationship was more frequent in the root canal with 42.5 % (212) to the relation of third molars with the inferior alveolar nerve, followed by the absence of contact 32.9 % (164). The age group was the 20 to 30 years and in greater proportion in the ratio of the root canal with 34.1 % (170). For the association of Pell and Gregory classification of with the Ezoddini classification, class IA is associated with a greater proportion of the absence of contact in 19.2 % (96). Conclusions: If there is an association between the position of the third molar as rated by Pell and Gregory relationship with the roots of the lower third molars with the mandibular canal as rated by Ezoddini .
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    • Asociación del canal mandibular con las terceras molares evaluadas mediante radiografía panorámica y tomografía computarizada de haz cónico en pacientes de 18 a 85 años del instituto de diagnóstico maxilofacial

      Agurto Huerta Andrés; Hospinal Umbert, Fabiola (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-11-29)
      Objective: To determine the association of mandibular canal with the third molars evaluated by panoramic radiography and cone beam computed tomography in patients aged 18 to 85 years. Materials and Methods: A study was observational, descriptive, cross-sectional and retrospective. A total of 301 lower third molars of patients attended at the Instituto de Diagnóstico Maxilofacial were used. Results: Assessing the association of mandibular canal with the third molars in a panoramic radiography was found more frequently 125 molars that were in no contact with the mandibular canal (41.5%). On the other hand, it was found high frequency of molars that were inferior to the mandibular canal (69.77%). Likewise, it was showed that exist statistically significant association in determining the association of the mandibular canal with the third molars in a panoramic radiography and computed tomography (p=0.000). Conclusion: There is association in assessing the mandibular canal with the third molars by panoramic radiography and cone beam computed tomography. However, those who present contact of canal with third molars should be considered patients with high risk of nerve injury.
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    • Asociación del dens invaginatus con el diente en pala en piezas anteriores en pacientes pediátricos de 7 a 14 años 11 meses de la Clínica Docente UPC

      Casimiro Iriarte , Sophia Alejandra (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-04-01)
      La presente tesis trata sobre la asociación del dens invaginatus con el diente en pala y el diente cónico en piezas anteriores. Para el desarrollo de la investigación se realizó una muestra La muestra incluyó radiografías panorámicas y periapicales digitales de 564 pacientes de 7 a 14 años y 11 meses en la Clínica Docente UPC. Se consideró dens invaginatus a la pieza dentaria que presentó una estructura en forma de cinta radiopaca de igual densidad que el esmalte que se extendía desde el cíngulo hacia el canal radicular. El diente en pala fue registrado al observarse una opacidad del esmalte en los bordes de la cresta marginal. Las piezas dentarias en las que se halló una reducción en el ancho mesiodistal de la corona en dirección gingivoincisal fueron registradas como diente cónico. Los incisivos del maxilar superior fueron evaluados mediante radiografías periapicales para determinar el tipo de dens invaginatus según la clasificación de Oehlers.
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    • Características clínicas y radiográficas de las pulpotomías realizadas en el área de odontopediatría del Centro Universitario de Salud de la UPC durante el año 2014

      Carrillo Sarmiento, Karla Janette; Caballero García, Carmen Stefany; Rosas Rios, Darian (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-12-01)
      Objective: To assess the clinical and radiographic features of the pulpotomy formocresol after 12 months. Materials and methods: a descriptive, transversal study that evaluated the clinical and radiographic features of 97 teeth with treatment of pulpotomy who attended the postoperative control after a year of performed treatment. The presence of history of pain, mobility, fistula and sensitivity in the tooth with treatment was observed for clinical evaluation. In radiographic evaluation was performed take a periapical radiograph to determine the presence of pathological findings such as loss of hard blade, IRL compatible with furcation and pathological resorption of internal and external lesion. Results: The prevalence according to clinical characteristics were 1 case of (1.03%) presence of pain history, 6 (6.18%) sensitivity, 3 (3.09%) mobility and 2 (2.06%) fistula; radiographic evaluation found 1 (1.04%) case of hard blade loss, 19 (19.58%) compatible with furcation lesion IRL, 3 (3.09) internal root resorption and 1 (1.04%) external root resorption. Conclusion: The results indicate a low percentage of pathological traits observed clinically and radiographically after one year of treatment.
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    • Comparación de la dimensión del espacio aéreo faringeo según las deformidades esqueleticas clase I, II y III en radiografías cefalométricas de pacientes que asistieron a la clínica docente UPC entre los años 2011 al 2014

      Ghersi Miranda, Hugo; Mendoza Lugo, Julián Alejando (Universidad Peruana de Ciencias Aplicadas (UPC), 2017-03-27)
      Objetives: Compare the dimension of the pharyngeal airspace according to the skeletal deformities class I, II and III in cephalometric radiographs. Materials and methods: A descriptive and retrospective type of study was made where there were analyzed 106 side radiographies, taken in the X-ray center of the University health Center of the Peruvian University of Applied Sciences UPC between the years 2011 and 2014. Through the program Nemotec ® the main cephalometrics points and tracings were marked to be able to obtain the skeletal deformity (Steiner) and the dimension of the upper and lower airspace (McNamara). Resultados: In the upper pharyngeal airspace it was found that the highest average dimension was 17.68 mm founded in the skeletal deformation class III, and the lowest in class II with a value of 13.71 mm. Fort the lower airspace, the highest average was 15.98mm and the lowest 13.19mm, also founded in skeletal deformation Class III and Class II respectively. While comparing the size of the pharyngeal space between classes of deformity, it was found that there is statistically significant difference between the upper airspace of skeletal deformities class II and III with a value of p = 0.001; and in the lower, between classes III - I and III - II with values of p=0.0236 and p=0.0042 respectively. Conclusions: In this study it was found that there is a statistically significant difference in the pharingeal airspace between class II and III skeletal deformities.
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    • Desarrollo de un centro de imágenes dentales digitales extraorales en un hospital del Sistema Metropolitano de la Solidaridad en Lima Metropolitana

      Di Bello, Gino; Díaz del Olmo Morey, Carlos Enrique; Garrido Lecca de La Piedra, Sebastián; Morales Arellano. Carmen Susana (Universidad Peruana de Ciencias Aplicadas (UPC), 2015-01-19)
      El presente proyecto propone un servicio de imágenes dentales digitales extraorales que operará dentro del Hospital SISOL - Surquillo. Para este fin se ha estudiado el mercado odontológico y radiológico dental dentro de SISOL, habiéndose identificado la existencia de una demanda insatisfecha por este tipo de exámenes radiológicos en todos sus locales. Se identificó al Hospital de Surquillo como el más atractivo para la implementación del servicio al presentar el mayor número de atenciones odontológicas en Lima Metropolitana así como contar con un área de influencia de aproximadamente 4 kilómetros desabastecida también de estos servicios. La propuesta de valor para el cliente propone eliminar barreras de acceso a los pacientes mediante la instalación del servicio en el lugar de atención a un precio competitivo. Se establecerá un estándar de calidad superior al ofrecido en el mercado, caracterizado por los siguiente servicios: 15 minutos por atención, envío inmediato de imágenes, envío de informe en no más de un día útil y un amplio servicio de posventa. La propuesta de valor para el accionista prevé obtener el retorno de la inversión en 2 años 8 meses creando un atractivo modelo replicable en otras localidades. La implementación del servicio comprende un odontólogo especialista en radiología oral y máxilo-facial, un tecnólogo y una secretaria administrativa. Se instalará un equipo radiológico digital (ORTHOPHOS XG 5, de la marca SIRONA) con capacidad de realizar diversas tomas digitales extraorales, siendo los exámenes panorámicos y cefalométricos los principales servicios que se ofertarán.
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    • Estudio de la anatomía de las raíces y conductos radiculares en segundas molares permanentes mandibulares mediante tomografía computarizada de haz cónico.

      Agurto Huerta, Andrés; Granda Morón, Germán Augusto (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-12-01)
      Objective: Determine the anatomy of roots and root canals in mandibular second permanent molars by cone beam computed tomography Materials and Methods: 400 mandibular second permanent molars views in CT of patients treated at the Instituto de Diagnóstico Maxilofacial (IDM) in a period January - June 2015. The anatomy of the pieces was analyzed in the axial and sagittal planes, which determined the number of roots and root canals, canals type according to the classification of Vertucci in the mesial and distal root, the presence of C-shaped canals and type of C-shaped canals according to the classification of Melton. Results: SMMP was found with two roots 287 (71.75%). On the other hand, three Canals was observed in 282 (70.50%) teeth. It was also noted that for the type of canals in the mesial root of Type II showed 66 (16.50%) and Type III showed 66 (16.50%). Also, in distal root was found Type I 357 (89.25%). In addition to the presence of C-shaped root canals system was observed in 113 (28.25%) pieces and in 287 (71.75%) was absent. Finally, for the type of C-shaped canals the most predominant type was "c3" 61 (15.25%). Conclusion: We conclude that the SMMP have two roots with three root canals and canals settings in the mesial root is Type II and III, while the distal root is the type I. There is also a high prevalence of ducts C-shaped, being the most prevalent type "c3".
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    • Evaluación radiográfica de la profundidad de las terceras molares y su proximidad con el nervio dentario inferior en pacientes de 18 a 35 años atendidos en la clínica docente UPC

      Zuiko Felix, Alfredo; Vera García, Leslie (Universidad Peruana de Ciencias Aplicadas (UPC), 2017-01-01)
      Objective: To relate the depth of the third molars and their proximity to the inferior dental nerve according to the classifications of Pell and Gregory and Abu-el naaj in population that attend a Clinical Teaching Odontology of Lima, Peru. Materials and Methods: A retrospective, descriptive and cross-sectional study was carried out to analyze panoramic radiographs of patients seen at outpatient clinic during the years 2011-2016. The evaluation was performed by a single calibrated evaluator. Data were analyzed using frequencies and medians. To perform associations, the chi square test and fisher were used. Results: A sample of 978 patients was included, with a median age of 23 years (interquartile range: 21 to 25); 51.6% were women. The results found for the category with the highest risk of exodontia in the two classifications were: for Pell Gregory: 8.4% on the left side of the mandible. Abu-el- naaj: Type II B 2.2% right side and 3% left side of the mandible, Type III: 0% right and left side of the mandible. According to the two classifications, differences in depth were found for male gender (Pell and Gregory Class A: 30.4% vs. 26.8% female, p = <0.001). In addition, according to the association of both classifications referring to the proximity of the dental nerve was observed the type IIB of Abu-el naaj in greater relation with class B of Pell and Gregory 2.04%; p= <0.001. Conclusion: In the study, a higher prevalence of Class A was found: 30.4% in men, which presented lower third molar depth compared to women. In addition, a higher ratio of class B to type IIB was found.
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    • Exactitud del diagnóstico de lesiones cariosas de dos sistemas de adquisición de imagen digital

      Agurto Huerta, Andrés; Montejo Quiroz, Milagros del Carmen Valeria (Universidad Peruana de Ciencias Aplicadas (UPC), 22/02/2016)
      Objective: To determine the accuracy in the diagnosis of interproximal and occlusal carious lesions of two digital systems: Charged Coupled Device (CCD) and Photo Stimulable Phosphor (PSP), using as a gold standard the histological evaluation. Methods: 207 surfaces of 69 teeth were evaluated by means of the bitewing using two digital systems: CCD (Planmeca ProSensor® HD) and PSP (VistaScan mini Easy Dürr Dental). The images were observed by calibrated observer. The actual depth of the carious lesion was determined by the histological evaluation, using the Dinolite Microscope. To determine the accuracy, sensitivity, specificity, PPV (positive predictive value) and NPV (negative predictive value) were performed. Results: The histological evaluation showed that the distribution of carious lesions was 62 pieces on the occlusal surface, 38 pieces on the mesial surface and 33 pieces on the distal surface. The sensitivity in the occlusal surface was 95.15% for both systems, in mesial was 78.95% for CCD and 63.16% for PSP, in the distal surface was 75.76% for CCD and 78.79% PSP. The specificity for the surfaces evaluated with both systems was between 90-100%. The PPV were found between 92.31% -100% and NPV between 67.44% -82.93%. Conclusion: The diagnostic accuracy of the CCD and PSP digital systems were similar for the detection of occlusal and interproximal carious lesions, so it is concluded that the modality of the image is not the factor that alters the diagnosis of carious lesions.
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    • Prevalencia de hallazgos en radiografías panorámicas de los pacientes de la clínica docente UPC durante el periodo febrero 2011 – abril 2014

      Ghersi Miranda, Hugo; Ponce de León Pérez, María Alejandra (Universidad Peruana de Ciencias Aplicadas (UPC), 18/05/2016)
      Objective: To determine the prevalence of findings in panoramic radiographs of patients of “Clínica Docente UPC” during the period February 2011 - April 2014. Materials and Methods: A descriptive, observational, cross-sectional and retrospective study was made. 3065 panoramic radiographs were examined; the imaging analysis was performed over a period of 5 radiographs per 30 minutes, with a 20 minutes resting between each revision and for approximately 3 hours per day. By analyzing each radiograph, the absence or presence of findings were determined following the classification of Philip and WHO, these include dental anomalies, cystic and tumor lesions. Interexaminer concordance values were obtained through the Kappa Cohen index, obtaining a value of 1, equivalent to a very high concordance. Results: The prevalence of panoramic radiographs with images compatible with findings was 993 (32.40%), of these, 782 cases were compatible with dental anomalies (25.51%), 193 findings were compatible with cystic lesions (6.30%) and 18 cases were compatible with tumor lesions (0.59%). Within the dental anomalies, the impacted tooth was the most prevalent with 389 cases and a 12.69%. In cystic lesions, the image compatible with radicular cyst was the most common with 104 cases equivalent to 3.39%. Within tumor lesions, the image compatible with complex odontoma was the most prevalent with 10 cases and 0.33%. Conclusion: There are various findings in the oral cavity, their diagnosis is important because these conditions may compromise the growth and development of the jaws, in addition to altering the dentition and function of them; these findings may result patient’s health problems.
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    • Prevalencia de incisivos en pala y su asociación con el overjet en pacientes de 6 a 14 años 11 meses con maloclusión clase I de la clínica docente UPC durante el periodo de febrero 2011 a diciembre

      Geller Palti, Dafna; Geller Palti, Dafna; Kawashima Matamoros, Luciana Sachie (Universidad Peruana de Ciencias Aplicadas (UPC), 2015-12-05)
      Objetivo: determinar la prevalencia de incisivos en forma de pala y su asociación con el overjet en pacientes de 6 a 14 años y 11 meses con maloclusión clase I de la Clínica Docente UPC durante el periodo de febrero 2011 a diciembre 2014. Materiales y Métodos: la muestra estuvo conformada por 900 historias clínicas de pacientes atendidos en la Clínica Docente UPC. Se obtuvo la medida del overjet, la edad y el género a partir de los datos de la historia clínica y mediante un análisis imagenológico se determinó en radiografías panorámicas y periapicales pertenecientes a la historia clínica de cada paciente la presencia o ausencia del incisivo en pala. Finalmente, se realizó la prueba de Chi cuadrado para determinar la asociación entre el overjet y el diente en pala. Resultados: la prevalencia de dientes en pala fue del 79% con mayor frecuencia en mujeres. Se presentó una mayor frecuencia de incisivos en pala localizados simultáneamente en ambos incisivos maxilares, seguidos por una alta predominancia en los incisivos laterales. El promedio del overjet en pacientes con incisivos en pala fue de 2.78mm. No se encontró una asociación estadísticamente significativa entre los incisivos en pala y el overjet. (p=0.080). Conclusiones: la anatomía convexa del incisivo en pala, la cual crea un aumento de su volumen en sentido vestíbulo palatino, no altera de manera significativa, según se demostró en este estudio, la medida del overjet. Asimismo, se encontró una alta prevalencia de incisivos en forma de pala en la muestra estudiada. Dicho hallazgo busca promover la realización de futuras investigaciones que abarquen temas de diagnóstico y tratamiento de dientes en pala así como temas inéditos relacionados a la antropología dental.
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    • Prevalencia de maloclusiones y necesidad de tratamiento ortodóncico (iotn), en escolares con dentición mixta del distrito de Ate Vitarte en el año 2015

      Córdova Berrocal, Andrés; Morales Caycho, Deborah Diahan (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-12-01)
      Objective: To determine the prevalence of malocclusions and orthodontic treatment need using the Index of Orthodontic Treatment Need (IOTN) in schoolchildren with mixed dentition from a Public School in Ate Vitarte, Peru. Materials and Methods: 252 schoolchildren aged between 9-12 years (both genders) with mixed dentition were including. Children with physical or mental disabilities, active or previous orthodontic treatment and no collaborators were excluded. Fisher´s exact test was used to associate malocclusion with the Dental Health Component, Dental Health and Aesthetic Component with age and gender. Results: According to the Index of Orthodontic Treatment Need modified, the prevalence with the Dental Health Component for grades 4-5 was 25.4% and with the Aesthetic Component for grades 8-10 was 5.6%. No statistically significant differences (p = 0.247, p = 0.056, p = 0.271 and p = 0.942) were presented to the prevalence of Orthodontic Treatment Need for Aesthetic and Dental Health Components by gender and age. Statistically Significant difference (p = 0.000) was found between the prevalence of malocclusions and orthodontic treatment need. Conclusions: The prevalence of malocclusions and orthodontic treatment need in class I was 13.9%, class II-1 of 7.9%, class II-2 and class III 1.2% 2.4% 6. Index of Orthodontic Treatment Need showed strong association with each class of malocclusion.
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