Browsing by Author "Pardo Aguilar, Helen Lizzeth"

Now showing 1 - 3 of 3

Cambios dentoalveolares en pacientes clase II tratados con aparatología advansync y herbst: prueba clínica aleatorizada controlada
(2018) Montalvo Jaramillo, Anhaly Carolina; Pardo Aguilar, Helen Lizzeth
The correction of class II malocclusion with mandibular advancement devices can be achieved through the combination of dentoalveolar changes, orthopedic forces that inhibit maxillary growth and orthopedic forces that stimulate mandibular growth. The aim of the present study was to evaluate the dentoalveolar changes produced by Advansync and Herbst appliances in Class II patients. The sample consisted of 30 patients between 11 and 18 years old randomly distributed into two groups: the study group (Advansync Device) and the control group (Herbst Device). After the installation of the appliance, controls were carried out for 9 months and the advancement devices were activated every three months. The lateral cephalometric skull radiographs were measured using the Dolphin Digital Imaging and Management Solutions software (version 11.3). The results showed that the measurements L6-PM (0.001), 1-NB (0.000), L1-PM ° (0.000) and 1-NB ° (0.000) presented statistically significant differences at the end of the treatment with Herbst, these variations were similar in Advansync: L6-PM (0.001), 1-NB (0.000), L1-PM ° (0.000) and 1-NB ° (0.000); however, when comparisons were made between the two groups there were no significant differences, 48.7% and 49.3% of the cases treated with Herbst and Advansync respectively were successful. It concludes that there is no statistically significant difference in dentoalveolar changes that produce both devices; in addition, the number of successful cases treated did not show significant differences between the two groups.
Evaluación de cambios esqueléticos verticales en pacientes clase ii tratados con aparatología HERBST Y ADVANSYNC: prueba clínica aleatorizada controlada
(2018) Aldaz Merchán, Johanna Carolina; Pardo Aguilar, Helen Lizzeth
The majority of Class II malocclusions are characterized by mandibular retrognathism, the use of a fixed functional appliance is an optimal therapy that generates important changes in the physical, functional and emotional aspects. The aim of the present study was to evaluate vertical skeletal changes in Class II patients, treated with Herbst and Advansync appliances. The sample consisted of 30 patients between 11 and 17 years old and randomized into two groups, a study group (Advansync) and a control group (Herbst). After its installation, the fixed functional appliances were activated every three months; the total treatment time was 9 months. The measurements on the lateral cephalic radiographs were made using Dolphin Digital Imaging and Management Solutions software (version 11.3). The results showed that between the groups Herbst and Advansync were only statistically significant differences in the MP-HP angular measure (p = 0.040) and the mandibular plane angle FMA (p = 0.031) whose value was maintained, decreased (dolicofacial) and increased (brachyfacial), favoring or without affecting the vertical growth pattern in 58.82% of the cases treated with Herbst and in 41.17% of the cases treated with Advansync. It can be concluded that the number of successful cases treated with Herbst and Advansync appliances did not present statistically significant differences
Rapid maxillary expansion assisted by mini-implants anchorage: A case report
(2019) Prado Segovia, Janeth Mariela; Pardo Aguilar, Helen Lizzeth; Bravo Calderón, Manuel Estuardo
Summary Rapid maxillary expansion (RME) is an orthopaedic treatment frequently used to correct transversal problems in the maxilla. The aim of this case report was to evaluate the transversal skeletal and dental changes in a 12-year-old male patient with maxillary atresia and bilateral posterior crossbite who had been treated with rapid maxillary expansion assisted by mini-implant anchorage. The results showed an increase of 6.2 mm in the maxillary width, an increase of 6 mm, 8 mm and 9 mm in the fossa-fossa measurements between first premolars, second premolars and first molars respectively, also there was a vestibuloversion of molars as an undesirable effect. Mini-implants, as skeletal anchorage in rapid maxillary appliances is a good alternative to achieve an increase of transverse skeletal and dental dimensions with a minimum amount of side effects.