Facultad de Odontología Tesis Especializaciones

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Browsing Facultad de Odontología Tesis Especializaciones by Subject "Advansync"

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    Análisis comparativo de la reabsorción de la cresta ósea vestibular de incisivos inferiores en pacientes tratados con dos diferentes tipos de propulsores mandibulares – prueba clínica controlada aleatorizada
    (2018) Reyes Arévalo, Giuseppe Antonio; Bravo Calderón, Diego Mauricio
    Class II discrepancies due to mandibular retrusion are one of the most common malocclusions in orthodontic practice today and for this type of disharmony we have several treatment options. One of the most widespread and well-known therapies is the mandibular anterior replacement through the use of mandibular reposition appliances. However, this type of treatment carries some side effects of the mandibular overtaking, which affects the vast majority of the lower incisors, specifically the height of the buccal alveolar crest of this area. That is why, the objective of the present investigation was to find out whether or not there is a correlation between the type of propellant used to treat these malocclusions and the reabsorption of the buccal bone crest. To do this, a comparative analysis was performed between two mandibular reposition appliances, one of them known worldwide in the orthodontic area and that was developed by Dr. Emil Herbst, and the second one recently developed, known as AdvanSync. In a sample of 30 subjects, 15 for each type of appliance, CBCT measurements were made of the distance between the buccal bone crest and the Cement-Enamel Joint of the mandibular incisors in two different times, before treatment (T0) and after the treatment (T1). In sequence, these results were subjected to two statistical tests, qui-squared was used to determine the association between the device and reabsorption of the vestibular bone crest. Likewise, U Mann-Whitney test was used to determinate whether or not there is a statistical difference between the two devices, regarding the amount of resorption of the buccal bone crest.The results of the present study indicate that there is no statistically significant difference between the two mandibular reposition appliances, despite this, the AdvanSync device showed a slight tendency to reabsorb the bone crest in a smaller amount, which is why it is recommended for future investigations of this kind improve its methodology to corroborate or reject this trend
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    Análisis de los cambios volumétricos del cóndilo en pacientes clase II tratados con advansync y herbst por medio del cone beam computer tomography (CBCT). Prueba clínica aleatorizada controlada
    (2018) Salinas Villacís, Pamela Jeanneth; Llanes Serantes, Maribel
    Functional devices such as Herbst and Advansync have been considered as effective mandibular propulsors and improve skeletal discrepancies in Class II subjects. The aim of this study was to compare the sagittal, transverse, vertical and positional changes of the condyle in Class II patients treated with Advansync and Herbst appliances by means of CBTC. Method: The study was performed with 58 tomographies (pre and post treatment) of 29 adolescent patients, who were treated with mandibular propulsors for 10 months, of whom 6 women and 23 men, high school students between 11 and 17 years old. an average age of 14.11 years (SD = 1.9), 14 patients were treated with Herbst and 15 with Advansync. Results: In the group of people treated with Herbst equipment, the vertical changes (height) were significant (p <0.05) with growths of 2.12 mm on the right side and 1.14 mm on the left side, likewise in the group with the Advansync appliance resulted with significant growths of 0.83 mm on the right side and 1.25 mm on the left side. While the sagittal, transverse and positional changes for the two groups change, however, they are not statistically significant. (p <0.05). Conclusions: The vertical changes were the most significant that there was a similar increase in height for the two Herbst and Advansync groups. The sagittal, transverse changes and the produced in the upper, anterior and posterior articular spaces were not statistically significant
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    Efectividad del Herbst y Advansync en los cambios esqueléticos y dentoalveolares según el estadío de maduración vertebral en pacientes Clase Il esqueletal. Una prueba clínica aleatorizada
    (2018) Prado Segovia, Janeth Mariela; Llanes Serantes, Maribel
    Class II malocclusions are the vast majority of the skeletal discrepancies treated in orthodontics. The aim of this study was to establish the effectiveness of skeletal and dentoalveolar changes with the use of Herbst and Advansync appliances according to the stage of vertebral maturation in skeletal Class II patients. The sample consisted of 30 subjects ranged 11 to 18 years of age randomly divided, 15 used the Herbst appliances and 15 Advansync, according to the stage of cervical vertebral maturation Baccetti method was divided into two groups: pubertal group (subjects with stage CVMS I, II, III) and postpubertal group (stage CVMS IV, V) and to determine the effectiveness of the devices in terms of skeletal and dentoalveolar changes the variables OLp-SS, OLp-Pg, OLp-MS, OLp-MI, OLp-IS, OLp-II according to the Pancherz analysis were used. They obtained very highly significant changes P ≤ 0.001 for the variables OLp-MI 6.95 mm in the pubertal group and 7.4 mm for the postpubertal group. OLp-II 9.9mm puberal and 7.4mm postpubertal. OLp-Pg 5.03mm puberal and 3.16mm postpubertal. No significant changes were found for OLp-SS, OLp-MS, OLp IS. The results of this research reveald that there are no statistically significant differences between the pubertal and postpubertal groups in terms of skeletal and dentoalveolar changes with the use of Herbst and Advansync appliances, therefore, this type of treatment is a good alternative for skeletal Class II correction in patients that are in the peak of pubertal growth as in the postpubertal stage
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    Evaluación de la reabsorción radicular externa apical por medio de CBCT en pacientes clase II tratados con Herbst y AdvanSync
    (2018) Pando Bacuilima, Karina Andrea; Siguencia Cruz, Valeria del Rosío
    The aim of this study was to analyze the degree of apical external root resorption (RREA) in the incisors of patients with different mandibular reposition appliances: Herbst and AdvanSync®. The sample consisted of 28 patients, included the patients between 11 and 17 years, who were randomly divided in 2 groups aged between 11 and 18 years, who were randomly divided into 2 groups: Herbst group (n = 13, 12 men, 1 woman) and AdvanSync® group (n = 15, 10 men, 5 women ). The analysis was over 224 dental pieces (upper and lower incisors) by using cone beam computed tomography. The data obtained were subjected to two statistical tests, a qui-square was used to determine the association between the device and apical external root resorption. Likewise t Student and U Mann-Whitney U tests were used to determinate whether or not there was a statistical significant difference between these two devices, regarding the amount of root resorption. The results indicate a tendency of a smaller amount of resorption for the AdvanSync® group without a statistical significant difference between these appliances. It is concluded that there was no a significant correlation between root resorption and type of mandibular reposition appliances.
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    Evaluación de los cambios de tejidos blandos en pacientes clase II tratados con aparatología Advansync y Herbst. Prueba clínica aleatorizada controlada
    (2018) Céspedes Cousin, Erika Cristina; Sigüencia Cruz, Valeria del Rosio
    Objective: Compare the changes in the soft tissue profile of Class II patients treated with the Herbst and the Advansync devices. Materials and methods: The present study is a randomized controlled clinical trial. Thirty patients were selected between ages 11 to 17 years old and the sample was randomized obtaining two study groups. The fixed functional appliances were installed in class I dental relation and their activation was performed every three months, with a total treatment time of 9 months. The cephalometric tracings were made using Dolphin Digital Imaging and Management Solutions software version 11.3. Results: Chi square test was used for qualitative data and Shapiro Wilk test, Mann Whitney U test, Student T test and Wilcoxon test for quantitative data. Similar changes were obtained in the two therapies when evaluating the variables qualitatively; however, the Herbst device showed that it generates more favorable conditions in percentage terms. The intergroup quantitative analysis showed no statistically significant differences. The intragroup evaluation showed significant changes for the variables Gl-Sn/Sn-Pg ', Ls-Pg'/N'-Pg ', Ls/Sn-Pg', Li/Sn-Pg ', Si/Li-Pg', Sn-Gn'-C (p <0.05) for the Herbst group and Li/Sn-Pg 'for the Advansync group (p <0.05). Conclusions: Both devices showed favorable changes in the improvement of the soft tissue profile; however the Herbst device generated a higher percentage of desired effects.