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Objective: To evaluate the results of a finishing protocol implemented in patients treated in the Orthodontics graduate program at Universidad de Antioquia. Evaluation was carried out by means of the criteria set by the Objective Grading System (OGS) of the American Board of Orthodontics (ABO). Methods: Cast models and panoramic radiographs of 34 patients were evaluated. The intervention group (IG) consisted of 17 patients (19.88 ± 4.4 years old) treated under a finishing protocol. This protocol included training in finishing, application of a finishing guide, brackets repositioning and patient's follow-up. Results of the IG were compared to a control group of 17 patients (21.88 ± 7.0 years old) selected by stratified randomization without finishing intervention (CG). Results: The scores for both CG and IG were 38.00 ± 9.0 and 31.41 ± 9.6 (p = 0.048), respectively. The score improved significantly in the IG group, mainly regarding marginal ridges (CG: 5.59 ± 2.2; IG: 3.65 ± 1.8) (p = 0.009) and root angulation (CG: 7.59 ± 2.8; IG: 4.88 ± 2.6) (p = 0.007). Criteria that did not improve, but had the highest scores were: alignment (CG: 6.35 ± 2.7; IG: 6.82 ± 2.8) (p = 0.62) and buccolingual inclination (CG: 3.6 ± 5.88; IG: 5.29 ± 3.9) (p = 0.65). Conclusions: Standardization and implementation of a finishing protocol contributed to improve clinical performance in the Orthodontics graduate program, as expressed by occlusal outcomes. Greater emphasis should be given on the finishing phase to achieve lower scores in the ABO grading system.

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Introducción: el objetivo de esta investigación fue estudiar las características de los estadios de maduración sexual y esquelética en un grupo de niños de Medellín. Métodos: estudio descriptivo longitudinal prospectivo. Se observaron 33 pacientes, 18 hombresy 15 mujeres, entre los 8 y 13 años; sanos, evaluados con parámetros de maduración esquelética, según Hägg y Taranger; de maduración sexual, según Tanner, y medidas antropométricas de talla y peso. Se realizaron mediciones cada seis meses durante treinta meses. Resultados: se encontraron asociaciones estadísticamente significativas entre la maduración esquelética y la sexual, con la edad, el peso  la talla; dimorfismo sexual con respecto a la edad de iniciación de la pubertad. Los incrementos de talla y peso del periodo inmediatamente anterior al inicio de la pubertad fueron iguales o mayores a los registrados en algunas etapas del periodo puberal evaluado. Conclusiones: el desarrollo esquelético, representado por los incrementos en talla y peso en el periodo prepuberal, es semejante a los del periodo puberal evaluado. Estas observaciones sustentan la pertinencia de instaurar la terapia ortopédica en un periodo anterior al puberal. Sin embargo, dadas las características de la muestra, se recomienda validar estos resultados con una muestra más representativaDOI: http://dx.doi.org/10.16925/od.v10i18.719

Introduction. The differential management of anchorage and the acceleration of tooth movement are some of the current greatest challenges for orthodontists. Diverse techniques and devices to reinforce anchorage and increase the rate of tooth movement have been proposed. Whether micro-osteoperforations (MOPs) can be used for both purposes is currently investigated. Objectives. To propose and describe a new technique for biological anchorage, which involves six MOPs performed every four weeks, and to present its results in a clinical case of upper premolar extraction. Intervention. In a dental class II patient who met the selection criteria, three MOPs both on the buccal and palatine sides on the intervention side were performed on the extraction area following the protocol described. No MOPs were performed on the control side. The allocation of the intervention was randomised. The MOPs were performed three times at an interval of four weeks. A 0.019 × 0.025 -inch stainless steel wire was activated with calibrated NiTi springs. The three-dimensional movement of the first molars and upper canines was evaluated. In addition, the comfort, periodontal status, and canine root resorption of the patient were evaluated. Results. Clinical and radiographic results suggest that the MOPs had a positive effect in reducing the loss of biological anchorage of the posterior sector and in the rate of canine tooth movement, without damaging changes in the soft and hard tissues. Conclusion. The proposed protocol involving six MOPs every four weeks improved the behaviour of biological anchorage and increased distalization on the intervention side in this clinical case.