Resolution of lower second molar impaction through miniscrew-supported biomechanics: A proposal for a simplified classification

Space closure by miniscrew-assisted mesialization of an upper third molar and partial vestibular fixed appliance: A case report

“…A 0.017 Â 0.025-inch SS archwire was modelled to connect the bracket-shaped miniscrew head to the palatal surface of the UR6, and was fixed to both sides using flowable composite (LoFlow Gradia Direct, GC Orthodontics Europe GmbH, Breckerfeld, Germany). This system made it possible to indirectly anchor the UR8 [17]. Addition of a lingual button on tooth UR4 a: palatal force applied UR4 b: representation of biomechanics on the sectional archwire system, with its clockwise rotation with centre of rotation at tooth UR6, palatal force on both UR4 and UR5 and vestibular force applied on UR8 c: after two months, the counter-clockwise rotation of the system has been resolved…”

Mandibular Second Molar Impaction: Introducing a Novel and Validated 3D Classification System

“…Mandibular second molar (M2M) impaction is a clinically signi cant manifestation of eruption disturbance in dental development, as second molars are of great importance for the normal development of the dentition and coordination of the posterior vertical dimension [1][2][3][4][5]. While M2M impaction occurs in 0.03-0.65% of adolescents, with a peak at 4.6% among those requiring orthodontic treatment, recent studies suggest an increasing trend in M2M impaction that emphasizes the necessity for a thorough understanding and effective management of this condition [1,[6][7][8].…”

“…Eruption alterations can signi cantly impact the relationship of the mandibular second molar with surrounding structures, and the utilization of Cone Beam Computed Tomography (CBCT) offers a threedimensional evaluation and provides enhanced visualization, aiding in precise diagnostics across spatial axes [1]. In the coronal view, a vertically-oriented impaction may bring the M2M into close proximity with the alveolar nerve, in uenced by infraocclusion and root development [3][4][5]10]. Axial views reveal lingual impactions, potentially impacting the proximity to the lingual nerve near the cortical plate [10].…”

Número Completo (marzo)

“…Durante el tratamiento de ortodoncia se requiere realizar un diagnóstico preciso sobre todo en ciertos procedimientos que son complejos y difíciles como las discrepancias entre el tamaño de los dientes y el maxilar y las discrepancias entre las bases óseas (Cocios para que de esta manera se obtenga un buen plan de tratamiento, que en ocasiones dicho plan de tratamiento requerirá de extracciones para su corrección (Ricketts, 1976) por lo tanto, es muy importante que el cierre de espacios deba realizarse de manera planificada y adecuada (Melo Pithon et al, 2012). Según la planificación ortodóncica, varios autores han demostrado la eficacia de la aparatología en conjunto con los TAD en el manejo del cierre de espacios después de la extracción, sobre todo en los sectores posteriores (Derton et al, 2017) afirmando que tal procedimiento cumple las demandas para ser tratados de manera rápida y eficiente al retraer parcial o totalmente los dientes (Palone et al, 2022).…”