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1.
Rev. medica electron ; 42(3): 1900-1910, mayo.-jun. 2020. graf
Article in Spanish | LILACS, CUMED | ID: biblio-1127050

ABSTRACT

RESUMEN La retención dentaria es común encontrarla en la clínica de ortodoncia, los caninos maxilares son los de mayor solicitud de tratamiento por su importancia estética. Sin embargo, no es frecuente la retención de dientes temporales. Su etiología no está bien definida pero se considera de carácter multifactorial. Se presentó una paciente del sexo femenino de 12 años y medio de edad, con ausencia de 15 y 13, presencia de 53 y mesogresión del 16. Al examen radiográfico se observó retención de 55, 15 y 13, este último en transposición incompleta con el 12. Después de un profundo análisis se decidió exéresis del 55 y alineación al arco dentario de 15 y 13, mediante colocación de un dispositivo, con el empleo del sistema de cementado directo en el acto quirúrgico. Se estableció una oclusión funcional y estética aceptable, con particular cuidado de la integridad de los dientes vecinos y sus tejidos blandos. Las retenciones constituyen maloclusiones dentarias complejas y de difícil pronóstico y tratamiento, más aún cuando son múltiples. Se requiere de estudio y tratamiento multidisciplinario (AU).


ABSTRACT It is common to find teeth retention in Orthodontics clinic; maxillary canines, due to their esthetical importance, are the ones the patients ask to be treated more frequently. Nevertheless, temporary teeth retention is not frequent. Its etiology is not clear, but it is considered multifactorial. The authors present the case of a female patient, aged 12 years and a half, without 15 and 13 teeth, presence of 53 and mesogression of 16. At the radiographic examination, the retention of 55, 15 and 13 was found, and also the incomplete transposition of 13 and 12. After deeply analyzing the case, the orthodontists decided the removal of 55 and aligning 15 and 13 to dental arch, placing a device with the system of direct cementing at the moment of the surgery. It was established a functional occlusion and an acceptable esthetics, particularly caring for the neighboring teeth and their soft tissues. Retentions are complex dental malocclusions, of difficult prognosis and treatment, mainly when they are multiple. They require study and multidisciplinary treatment (AU).


Subject(s)
Humans , Female , Child , Tooth, Impacted/diagnosis , Orthodontic Retainers , Malocclusion/diagnosis , Malocclusion/diagnostic imaging , Orthodontics , Surgery, Oral , Tooth, Impacted/therapy , Tooth Movement Techniques , Malocclusion/therapy
2.
Rev. medica electron ; 41(6): 1500-1508, oct.-dic. 2019. graf
Article in Spanish | LILACS, CUMED | ID: biblio-1094145

ABSTRACT

RESUMEN La transposición dentaria se define como una ectopia del germen dentario, es común encontrarla en caninos superiores, pero cuando esta entidad se combina con una transposición se convierte en un dilema para el ortodoncista. Su etiología es multifactorial y no está bien aclarada, es conocido que se produce en el momento de la formación embrionaria por un intercambio en la posición del germen dentario, y con frecuencia, se considera ligado a factores genéticos. Se relaciona con trauma en el área afectada y con interferencias mecánicas. Se presentó un paciente de 14 años de edad, sexo masculino, que solicitó tratamiento por tener los dientes "botados" y un diente "fuera de lugar". Al examen clínico se observó transposición de 23 con 2:4. Se colocó aparatología fija con técnicas de cementado directo y bandas en los primeros molares permanentes superiores, se determinó mesializar el 23 y dejar libre 24, para evitar daño radicular. Una vez colocado 23 en su posición, 24 fue distalado y alineado al arco; para esto se utilizó arcos térmicos de nitinol preformados y secciones con elastómeros. Se logró neutroclusión de molares y caninos sin perjudicar los tejidos de soporte (AU).


ABSTRACT Tooth transposition is defined as an ectopia of the tooth germ, commonly found in upper canines, but when this entity is combined with a transposition, it becomes a dilemma for the orthodontists. Its etiology is multi-factorial and unknown. It takes place at the moment of the embryonic formation due to an interchange in the position of a tooth germ, and it is frequently considered linked to genetic factors. It is related to trauma in the affected area and with mechanic interferences. We present the case of a male patient, aged 14 years, who asked treatment for having buckteeth and a tooth ¨out of place¨. At the clinical examination it was observed the transposition of the 23 with 24. A fixed brace was put with direct cement techniques and bands in the first permanent upper molars. The orthodontist decided to mesialize 23 and let 24 free, to avoid root damage. Once 23 was in its position, 24 was distalized and aligned to the arch using pre-formed thermic nitinol arches and sections with elastomers. The molars and canines neutral occlusion was achieved without damaging the support tissues (AU).


Subject(s)
Humans , Male , Adolescent , Orthodontics, Corrective , Tooth Eruption, Ectopic/etiology , Orthodontic Appliances, Fixed , Tooth Eruption, Ectopic/congenital , Tooth Eruption, Ectopic/therapy , Tooth Eruption, Ectopic/epidemiology
3.
Rev. medica electron ; 32(5)sept.-oct. 2010.
Article in Spanish | LILACS | ID: lil-616120

ABSTRACT

Introducción: el sistema estomatognático ha sido diseñado para cumplir una serie de funciones, siendo la masticación y deglución las más reconocidas y propias del sistema. No obstante, cualquier afectación que altere su funcionamiento normal se considera un factor de riesgo que pueden ser provocados por condiciones oclusales, bruxismo, estrés, traumatismos, hábitos parafuncionales, entre otros, siendo su etiología multifactorial. El análisis del Test de Krogh Paulsen incluye nueve ítems que permite evaluar la función del sistema estomatognático y determinar el diagnóstico acerca de la existencia o no de disfunción de la articulación temporomandibular, el riesgo de padecerla y si presenta perturbación en la misma. Objetivo: evaluar la asociación entre los factores de riesgo de la disfunción temporomandibular y los ítems del test de Krogh Paulsen. Métodos: se estudiaron 119 pacientes que asistieron a la consulta de ortodoncia aquejados por disfunción temporomandibular; se les realizó examen clínico bucal utilizando el Test de Krogh Paulsen y se analizó la oclusión dentaria. Resultados: la presencia del estrés, masticación unilateral e interferencias oclusales indujeron la limitación en la apertura bucal, dolor y ruidos en la articulación temporomandibular. Conclusiones: se comprobó una relación directa entre los factores de riesgo y los ítems del Test de Krogh Paulsen en la presencia de disfunción temporomandibular...


The stomatognathic system has been designed to execute a series of functions, being mastication and deglutition the most recognized and proper of the system. However, whatever affectation that can alter its normal functioning is considered a risk fact that could be the results of occlusal conditions, bruxism, stress, traumatisms, parafunctional habits, and others, being its aetiology multifactorial. The Krogh-Paulsen Test includes nine items allowing evaluating the stomatognathic system function and determining the diagnosis on the existence or not of a temporomandibular joint dysfunction, the risk of suffering it and if there is any disturbance in it. Evaluating the association between the temporomandibular dysfunction risk facts and the items of the Krogh- Paulsen Test. We studied 119 patients assisting the Orthodontics consultation suffering temporomandibular dysfunction; clinical oral examination using the Krogh-Paulsen Test was made to them and dental occlusion was analysed. The presence of stress, unilateral mastication and occlusal interferences induced limitations in oral opening, pain and noise in the temporomandibular join. It was stated a direct relation between risk facts and the items of the Krogh-Paulsen Test in the presence of temporomandibular dysfunction...


Subject(s)
Humans , Risk Factors , Stomatognathic System/physiopathology , Temporomandibular Joint Disorders/diagnosis , Temporomandibular Joint Disorders/epidemiology , Temporomandibular Joint Disorders/etiology , Epidemiology, Descriptive , Prospective Studies
4.
Rev. medica electron ; 32(4)jul.-ago. 2010.
Article in Spanish | LILACS-Express | LILACS | ID: lil-585202

ABSTRACT

Temporomandibular joints are located before the ears and bond the jawbones with the crania base through ligaments and muscles; they also integrate the oclusal surfaces of the teeth; it makes hinging movements in anterior-posterior sense, containing a fiber-gristly disc to avoid frictions; whatever alteration in any of its parts may cause a pain dysfunction syndrome, manifested in the person as myofacial pain, cephalea, earache or auditive symptoms. Describing the relation between otic symptomatology and temporomandibular dysfunction. We studied 123 patients, with referred otic symptoms, remitted to the orthodontic consultation with negative diagnosis of otolaryngologic disease. For the clinical examination we used the Krogh Paulsen Test to diagnose dysfunction. 115 patients presented temporomandibular join dysfunction with 93,5 percent and as subjective symptoms, myofacial pain, cephalea and otalgia were considered the most significant. Stress was a risk fact presented by 91,1 percent, followed by oclusal problems. We stated that there is a relation between the temporomandibular disturbances and otic symptomatology, being women the ones who tended to suffer the disease more frequently.

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