Person: Arias Paniagua, Ana María
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First Name
Ana María
Last Name
Arias Paniagua
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Odontología
Department
Odontología Conservadora y Prótesis
Area
Estomatología
Identifiers
9 results
Search Results
Now showing 1 - 9 of 9
Item Differences in cyclic fatigue resistance between ProTaper next and ProTaper universal instruments at different levels(Journal of endodontics, 2014) Perez-Higueras, Juan José; Arias Paniagua, Ana María; Macorra García, José Carlos de la; Peters, Ove A.Introduction: New designs and alloys have been developed toincrease cyclic fatigue (CF) resistance of rotary files. the aim of this study was to compare CF resistance of ProTaper Universal (PTU) ; Dentsply Tulsa Dental, Tulsa, OK) and ProTaper Next (PTN, Dentsply Tulsa Dental) instruments at different points of curvature. Methods: A total of 420 files (240 PTU, S1, F1, f2 and F3 and 180 PTN, X1, X2 and X3) were divided in 14 groups of 30 instruments each. Instruments in groups s1-5, F1-5, X1-5, F2-5, x2-5, F3-5, and X3-5 were tested at 5 mm from the tip. groups F2-8, X2-8, F3-8 and X3-8 were tested at 8 mm (F2/X2 and F3/X3, respectively, had the same diameter at 8 mm). All files were rotated at 300 rpm until fracture. CF resistance was tested in stainless steel curved canals (60º, r=3 mm). Time to fracture was recorded. The mean half-life and beta and eta were calculated for each group and were compared with Weibull analysis. Results: PTN instruments will last significantly longer than PTU files with a probability higher than 98% at all tested levels except for S1, which was the significantly more resistant instrument to CF at 5 mm from the tip. Conclusions: PTU S1 was significantly the most resistant instrument at 5 mm from the tip. PTN files were significantly more resistant to CF than PTU instruments at all the other tested levels.- Project number: 239
Item #Porque tu opinión importa: Fomentando la implicación y participación de los estudiantes en los procesos de calidad(2019) Arias Paniagua, Ana María; Macorra García, José Carlos de la; Iglesias Linares, Alejandro; Garcillán Izquierdo, María del Rosario; Hidalgo Arroquia, Juan José; Fontecilla Castillo, Josefa; Oliveira Pegado Figueiredo, Frederico Eduardo de; Álvarez de Almeida, Eva; Isasi Castellón, Enrique; Gao, Baoluo; Cidad Pinto, Paula; González Martínez, PaulaEl objetivo general de este proyecto fue fomentar la implicación y la participación de los estudiantes en los procesos de garantía y evaluación de la calidad a través de una serie de herramientas que pretendieron la involucración más activa del colectivo. - Project number: 47
Item Diseñando el futuro de la docencia de grado en la facultad de odontología de la UCM(2017) Macorra García, José Carlos de la; Martínez Alvarez, María Concepción; Hidalgo Arroquia, Juan José; del Rio Highsmith, Jaime; Collado Yurrita, Luis Rodolfo; Mourelle Martínez, Rosa; Vaticón Herreros, Dolores; Fernández-Tresguerres Hernández-Gil, Isabel; Arias Paniagua, Ana María; Oliveira Pegado Figueiredo, Frederico Eduardo de; García González, Marina; Angulo Manzaneque, Gema - Project number: 167
Item Aprender educando: Experiencia ApS de promoción de la salud oral(2018) Iniesta Albentosa, Margarita Isabel; Alonso Álvarez, Bettina María; Arias Paniagua, Ana María; Hidalgo Arroquia, Juan José; Figuero Ruiz, Elena; Herrera González, David; Sanz Alonso, Mariano; De la Macorra Gracía, José Carlos; Méndez González, Raquel; Figueiras López, Iria; De Oliveira Pegado Figueiredo, Frederico EduardoEl programa de aprendizaje-servicio realizado ha permitido que el estudiante construya su propio aprendizaje y, por lo tanto, el aprendizaje académico ha mejorado el servicio ofrecido. Hemos preparado a los estudiantes para que sepan participar de forma activa en la sociedad; y hemos generado en ellos una serie de valores que dentro del aula son más difíciles de conseguir, como empatía, responsabilidad social, liderazgo, etc. Item Cyclic Fatigue Resistance of K3, K3XF, and Twisted File Nickel-Titanium Files under Continuous Rotation or Reciprocating Motion(Journal of Endodontics, 2013) Pérez-Higueras, Juan José; Arias Paniagua, Ana María; Macorra García, José Carlos de laIntroduction New designs and alloys and different motions have been introduced to increase the cyclic fatigue (CF) resistance of nickel-titanium (NiTi) files. The aim of this study was to compare the CF resistance of K3 (SybronEndo, Orange, CA), K3XF (SybronEndo), and TF (SybronEndo) files under continuous rotation and reciprocating motion. Methods A total of 210 files (30-tip diameter, 0.06 fixed taper), 60 K3, 60 K3XF, and 90 TF files, were divided into 7 groups (30 files each): K3-C, K3XF-C, and TF1-C were rotated at 300 rpm; TF2-C was rotated at 500 rpm; and K3-R, K3XF-R, and TF1-R were used in a reciprocating motion. CF resistance was tested in stainless steel, curved canals (60°, r = 3 mm) until fracture, and the time to fracture was recorded. The mean half-life, beta, and eta were calculated for each group and were compared with Weibull analysis. Results The probability of a longer mean life was greater under reciprocating motion for all of the files (100% for K3, 87% for K3XF, and 99% for TF). Under continuous rotation, K3XF was more resistant than K3 and TF. TF lasted significantly longer than K3. TF was more resistant to CF when rotated at 300 rpm instead of 500 rpm. Under reciprocating motion, there were no significant differences between K3XF and TF mean lives, but both were significantly longer than the K3 mean life (78% for TF and 86% for K3XF). Conclusions Reciprocating motion and R-phase increase CF resistance.Item Predictive models of pain following root canal treatment: A prospective clinical study(International Endodontic Journal, 2013) Arias Paniagua, Ana María; de la Macorra, José C; Hidalgo Arroquia, Juan José; Azabal Arroyo, MagdalenaAim To determine the probability of the incidence, intensity, duration and triggering of postendodontic pain, considering factors related to the patient (age, gender, medical evaluation) and to the affected tooth (group, location, number of canals, pulp vitality, preoperative pain, periapical radiolucencies, previous emergency access, presence of occlusal contacts with antagonist). Methodology A total of 500 one-visit root-canal treatments (RCTs) were performed to patients referred to an endodontist. Shaping of root canals was performed manually with Gates-Glidden drills and K-Flexofiles, and apical patency was maintained with a size 10 file. A 5% NaOCl solution was used for irrigation, and canals were filled with lateral compaction and AH-plus sealer. Independent factors were recorded during the treatment, and characteristics of postendodontic pain (incidence, intensity, type and duration) were later surveyed through questionnaires. Out of the 500 questionnaires, 374 were properly returned and split in two groups for two different statistical purposes: 316 cases were used to adjust the logistic regression models to predict each characteristic of postendodontic pain using predictive factors, and the remaining 58 cases were used to test the validity of each model. Results The predictive models showed that the incidence of postendodontic pain was significantly lower when the treated tooth was not a molar (p=0.003), demonstrated periapical radiolucencies (p=0.003), there was no history of previous pain (p=0.006) or emergency endodontic treatment (p=0.045) and there was no occlusal contact (p<0.0001). The probability of experiencing moderate or severe pain was higher with increasing age (p=0.09) and in mandibular teeth (p=0.045). The probability of pain lasting more than two days was increased with age (p=0.1) and decreased in males (p=0.007) and when a radiolucent lesion was present in radiograph (p=0.1). Conclusions Predictive formulae for the incidence, the intensity and the duration of postendodontic pain were generated and validated considering the interrelation of multiple concomitant clinical factors. A predictive model for triggering postendodontic pain could not be established.Item Influence of clinical usage of GT and GTX files on cyclic fatigue resistance(International Endodontic Journal, 2013) Arias Paniagua, Ana María; Perez-Higueras, Juan José; de la Macorra, José CarlosAim To compare static cyclic fatigue resistance of unused, unused and sterilized and clinically used conventional NiTi GT and M-Wire GTX files. Methodology One hundred and sixty new files (80 GT and 80 GT series X) were divided into four control groups and four experimental groups (n= 20 each). Control groups were new unused files, and new sterilized files. In the experimental groups instruments were used in 3 (GT1 and GTX1 groups) or 4 molars (GT2 and GTX2 groups). Cyclic fatigue resistance was tested in stainless steel curved canals (60°, r = 3mm). Each file was rotated until fracture (300 rpm, 2 N·cm torque). Time to fracture (s) was registered. Mean life, eta and beta parameters of their Weibull distributions were calculated. Results Unused and sterilized GTX files will last significantly longer than GT files with a probability of 75% and 65% respectively, while mean life was significantly longer for GT than for GTX in used files with a probability of 68%. Sterilized GT files will last longer than unused files with a probability of 66%. In both brands, unused and sterilized files will last significantly longer than files used clinically with a probability higher than 98%.The probability that GT will last longer after being used in three rather than four molars was 62% (statistically significant), and 52% (not statistically significant) for GTX. Conclusions GTX files had an extended cyclic fatigue life when compared with GT when they were unused or unused and sterilized, but GT were significantly more resistant to cyclic fatigue after clinical usage than GT series X files 3 mm from the tip. Sterilization of files enhanced the cyclic fatigue resistance of GT instruments. Clinical use of files diminished cyclic fatigue resistance. This article is protected by copyright. All rights reserved.Item Differences in Cyclic Fatigue Resistance at Apical and Coronal Levels of Reciproc and WaveOne New Files(Journal of Endodontics, 2012) Arias Paniagua, Ana María; Perez-Higueras, Juan José; de la Macorra, José CIntroduction Recent improvements in alloys, kinematics, and concepts have been combined to increase the cyclic fatigue resistance of nickel-titanium (NiTi) instruments. The aim of this study was to compare the cyclic fatigue resistance of new M-Wire reciprocating WaveOne (Dentsply Maillefer, Ballaigues, Switzerland) and Reciproc (VDW GmbH, Munich, Germany) files at 2 levels. Methods Sixty Reciproc and 60 WaveOne new files were fixed to a specifically designed device and tested in tempered steel canals with a 3-mm radius and a 60° angle of curvature. The motor used was programmed as defined by each manufacturer, and the specific reciprocating motion was followed. Thirty files of each brand were tested at 5 mm, and 30 were tested at 13 mm from their tips. The time to failure was registered. Weibull analysis was used to calculate the mean life, beta, and eta parameters. Results The probability of the mean life was higher for Reciproc than WaveOne files at both levels, with the probability of the Reciproc mean life being 62% higher than that of WaveOne at 5 mm from the tip and 100% higher at 13 mm (all statistically significant). The probability of the mean life was higher at 5 mm than at 13 mm in both systems. The results may have been partially conditioned by the different motions that manufacturers propose for each system. Conclusions Reciproc files were more resistant to cyclic fatigue than WaveOne files at both distances from the tip. Both systems had greater cyclic fatigue resistance at 5 mm than at 13 mm from the tip.Item Prospective case controlled clinical study of post-endodontic pain after rotary root canal preparation performed by a single operator(Journal of Dentistry, 2015) Arias Paniagua, Ana María; Macorra García, José Carlos de la; Azabal, Magdalena; Hidalgo Arroquia, Juan José; Peters, Ove A.Objectives: The aim of this study was to asses the influence of the shaping technique on incidence, intensity, duration and type of postoperative pain (PP). Methods: Root canal treatments were carried out with rtary instrumentation (n=80) during a single-visit, and data about pre-treatment conditions were collected. Patients were given a questionnaire to record the presence or absence of post-endodontic pain, its duration and level of discomfort. A matching patient (same pre-treatment conditions but manual instrumentation) was randomly selected from a pool (n=374) and assigned to the control group. A total of 44 pairs of patients matched completely and were included in the study. Incidence (yes/no) of PP was assessed using Chi-square tests, intensity (mild, moderate, severe) with trend tests and duration (days) with Mann-Whitney U tests. Results: A significantly greater proportion of the patients in the control group reported pain than did patients in the rotatory shaping group (p<0.05). However, pain duration was shorter (p=0.008) in the control group. Differences in level of discomfort were not statistically significant. Conclusions: The results of this prospective in vivo study suggest that a higher incidence of PP should be expected after manual root canal preparation. However a second major finding of the study is that when present, PP after a rotatory canal preparation is expected to last longer. Clinical significance: There has been an increase in the use of rotatory techniques among dentists in recent years. The present study analyses the differences in the incidence and characteristics of postoperative pain that should be expected after rotary canal preparation compared to traditional manual methods that had not been reported yet.