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

Abstract:

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

Año de publicación:

2018

Keywords:

• Herbst
• Advansync
• Cresta Osea Vestibular
• Propulsor Mandibular

Fuente:

rraae