Introducción y Objetivo: En la maloclusión clase II, una opción de tratamiento es la alteración del crecimiento mandibular mediante el uso de aparatología de ortopedia funcional. Describir los cambios en la morfometría y morfología condilar y los cambios clínicos después de un año de uso de Pistas Indirectas Planas Compuestas en pacientes con maloclusión clase II.   Materiales y métodos: Con Tomografía Computarizada Cone-Beam y revisiones clínicas fueron evaluados 8 pacientes entre 7 y 10 años, antes (T1) y un año después (T2) del uso de Pistas Indirectas Planas Compuestas, describiendo los cambios en morfología y morfometría condilar en los planos axial, sagital y coronal, así como cambios clínicos.   Resultados: Las dimensiones latero-medial en el corte axial derecho e izquierdo y coronal derecha presentaron cambios estadísticamente significativas (p< 0,05). En el corte sagital la forma predominante fue la redondeada en un 100% en ambos cóndilos antes y después del tratamiento. En el análisis clínico el overjet disminuyó 2,88 ± 1,51 mm con el uso del aparato.   Conclusiones: En este estudio se observó que la morfología condilar fue simétrica bilateralmente en todos los cortes. Luego de un año de tratamiento con Pistas Indirectas Planas Compuestas, se observó aumento bilateral de la dimensión latero medial condilar (cambios morfométricos), disminución del overjet, y el overbite, no se observaron cambios en la morfología condilar. De acuerdo a estos resultados, las Pistas Indirectas Planas Compuestas pueden ser una alternativa de tratamiento para las maloclusiones clase II. Condylar changes by Planas Indirect Compound Tracks on Class II malocclusion evaluated with Cone Beam Introduction and Objective:  In malocclusion class II, a treatment option is the alteration of mandibular growth through the use of functional orthopedic appliances.To describe the changes in the condylar morphometry and morphology and clinical changes after a year of use of Planas Indirect Compound Tracks (PIPC) in patients with class II malocclusion.  Materials and methods: Through tomography CT Cone - Beam and clinical reviews were assessed 8 patients with ages between 7 and 10 years, before (T1) and after a year (T2) the use of PIPC, describing changes in condylar morphology and morphometry in planes axial, coronal and sagital, as well as dental clinical changes.  Results: Measurements right and left latero-medial in the axial cut and right latero-medial in the coronal cut showed statistically significant differences (p < 0,05) between T1 and T2. In the sagital cut the predominant form was the rounded 100% in both condyles before and after treatment. Clinical analysis the overjet decreased 2.88 ± 1.51 mm with the use of the appliance.  Conclusions: In this study we observed that the condylar morphology was bilaterally symmetrical in all courts. After a year of treatment with Planas Indirect Compound, increased bilateral dimension latero medial condyle (morphometric changes), decreased overjet and the overbite was observed, no changes were observed in the condylar morphology. According to these results, Planas Indirect Compound Tracks can be an alternative treatment for Class II malocclusion.  Keywords: Malocclusion Angle Class II, Cone-Beam Computed Tomography, Mandibular Condyle, Planas Indirect Compound Tracks 

Introduction: Eruption is a dental development process responsible for movement by the dental germ to its final position, when it occludes with its opposite. Interaction is defined as dental eruption failure caused by a physical obstacle in the path of access or eruption towards a normal tooth position. The teeth with the greatest tendency towards impaction, in order of frequency, are the third molars, followed by the canines, pre-molars and secondary molars. The purpose of this research is to determine the frequency of impaction of the second inferior molar in patients at the clinics of the Dental Faculty of the  Universidad de Antioquia. Methods: A retrospective descriptive study was carried out at the Dental Faculty of the Universidad de Antioquia. 500 medical histories of patients between the ages of 6 and 16 who had used the clinics of that faculty over a six-year period were analyzed. Results: 442 Medical histories fulfilled the inclusion criteria. The average age of the sample was 10.8; 57.2% were females. 48 patients were found to have impacted second molars (10.8%), 30 of whom were females (62.5%). In most cases, the impaction was bilateral, (80%) and mesial inclination was 76.6%. Among men, bilateral impaction predominated, accounting for 83.3%, along with mesial inclination, at 88.8%. Conclusions: In comparison with other studies, a high frequency of impaction was found, thus underlining the importance of early diagnosis.

Introduction: malocclusions are a series of disorders in which the anatomic phy-siologic controls of the stomatognathic system are in disharmony with the dental segments. Epidemiological studies show that malocclusion have high prevalence rates of over 60% in the studied populations. The malocclusion research in populations of 4 to 5 years old report prevalence of 70 to 80%, which evolve to 96,4% in teenagers. Dacosta and Onyeaso report that the prevalence of dental malocclusions worldwide ranges from 65 to 89%. Objective: compare the type of malocclusion that is most frequently presented in odontopediatric clinics of the Autonomous University of San Luis Potosi and the University of Antioquia. Methodology: an observational study was conducted of transversal and comparative type with a convenience sample; a higher frequency of class i type 1 was seen in group 1, with a percen-tage of 52,7%, while in group 2, the predominant malocclusions where class ii div. 1, with a percentage of 23,6% and class iii with 22,5%. Conclusion: the results in each population were different. The diagnosis of occlusal alterations is recommended to be performed in a timely manner to allow the implementation of assistance programs that include therapy and functional orthopedics of the jawbone for an early rehabilitation of the stomatognathic system.