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1.
Rev. Asoc. Odontol. Argent ; 109(3): 207-212, dic. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1373478

ABSTRACT

La maloclusión clase III se considera un reto en la práctica de todo ortodoncista. Una de las principales dudas al respecto reside en ¿cuándo es el mejor momento para intervenir? Exis- ten dos enfoques en el manejo ortodóntico del paciente: 1) la ortodoncia interceptiva; y 2) la ortodoncia correctiva. La or- todoncia interceptiva busca la prevención del establecimiento de la malolcusión. En este grupo, se encuentra el uso de más- cara facial con disyunción maxilar y el de aparatología fija (2x4 o 2x6). Por otro lado, la intervención correctiva hace re- ferencia al camuflaje de las características que trae consigo la maloclusión clase III ya establecida; dentro de este enfoque se encuentran las extracciones de piezas, el uso de minitornillos extraalveolares y la filosofía MEAW. Se puede concluir que el adecuado manejo de la maloclusión clase III radica en el oportuno y correcto diagnóstico, que debe realizarse a través de la minuciosa inspección de las características y hallazgos intra y extraorales de los pacientes (AU)


Class III malocclusion is considered a challenge in the practice of every orthodontist. One of the main questions is: when is the best time to intervene? There are 2 approaches to the orthodontic management of the patient: 1) interceptive orthodontics, and 2) corrective orthodontics. Interceptive or- thodontics seeks to prevent the establishment of malocclusion by means of the use of a facial mask with maxillary disjunc- tion, or the use of fixed appliances (2x4 or 2x6). Corrective intervention refers to camouflaging the characteristics of a Class III malocclusion that is already established. This ap- proach uses tooth extraction, extra-alveolar mini screws or the MEAW philosophy. To conclude, proper management of Class III malocclu- sion is based on timely, correct diagnosis, which must be made through careful inspection of the characteristics and intraoral and extraoral findings in patients (AU)


Subject(s)
Humans , Orthodontics, Corrective , Orthodontics, Interceptive , Malocclusion, Angle Class III/therapy , Serial Extraction , Palatal Expansion Technique , Extraoral Traction Appliances , Orthodontic Appliances, Fixed
2.
Rev. ADM ; 78(4): 215-220, jul.-ago. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1292866

ABSTRACT

En este informe de caso clínico se muestra el tratamiento exitoso de un paciente con anodoncia parcial de órganos dentales 13 y 23 debido a que fueron extraídos por presentar impactación y mal pronóstico de tracción. En este artículo se presenta un paciente masculino de 29 años clase I esquelética con un perfil convexo, maloclusión de clase III, overjet disminuido, ausencia de guías funcionales, discrepancia oseodentaria positiva en arcada superior y negativa en arcada inferior. El tratamiento se realizó con extracciones de los órganos dentales 34 y 44 para nivelar las discrepancias óseo dentarias interarcadas, se llevó a cabo mediante un cierre de espacios recíproco por medio de cadenas elásticas para ambas arcadas, con lo que se logró crear un overjet y overbite adecuados. La creación de las guías caninas funcionales se consiguió mediante el cambio de morfología de los órganos dentales 14 y 24, los cuales fueron llevados a la posición de los caninos ausentes. El tiempo total de tratamiento para este paciente fue de 24 meses. Se realizaron ameloplastias positivas, la aplicación de agregados de resina para mejorar la funcionalidad y proveer salud articular. Se sugiere que ante casos de anodoncia de caninos en la arcada superior, un tratamiento favorable se puede llevar a cabo mediante el cierre de espacios, la caracterización morfológica de los caninos ausentes mediante ameloplastias positivas en premolares (AU)


This case report shows the successful treatment of a patient with partial anodontia of dental organs 13 and 23 because they have been extracted due to present impactation and poor traction prognosis. This article presents a 29-year-old male class I skeletal patient with convex profile, class III malocclusion, overjet reduction, absence of functional guidance, positive bone-teeth discrepancy in the upper arch and negative in the lower arch. The treatment was carried out with the extractions of the dental organs 34 and 44 for correcting oral dental discrepancies between upper and lower arches; it was done using reciprocal closing of spaces by using elastic chains for both arches in order to achieve a suitable overjet and overbite. The creation of the canine guides was achieved by changing the morphology of the dental organs 14 and 24, which were taken to the position of the absent canines. The total treatment timing for this patient was 24 months. Positive ameloplasties were performed by application of resin aggregates to improve functionality and provide joint health. A favorable treatment for these kinds of cases of canine anodontics in the upper arch is carried out by closing spaces and the morphological characterization of the absent canines by positive in-premolar ameloplasties (AU)


Subject(s)
Humans , Male , Adult , Tooth Extraction/methods , Bicuspid , Cuspid/surgery , Dental Enamel/surgery , Anodontia/therapy , Schools, Dental , Tooth Movement Techniques/methods , Orthodontic Brackets , Orthodontic Retainers , Orthodontic Space Closure , Esthetics, Dental , Malocclusion, Angle Class III/therapy , Maxilla , Mexico
3.
Article in English | LILACS, BBO | ID: biblio-1180860

ABSTRACT

ABSTRACT Objective: To describe the gonial angle characteristics in class III skeletal malocclusion in Javanese ethnic. Material and Methods: Pretreatment lateral cephalometric radiographs of 43 Javanese ethnic patients were measured: upper (Go1) and lower gonial angle (Go2), anterior (AFH) and posterior face height ratio (PFH), maxilla-mandibular length difference, mandibular plane angle (FMA), Y axis, ramus position, ANB angle, posterior cranial base/ramus height and mandibular body length/anterior cranial base. The relation between Go1, Go2 and other variables were analysed using correlation and regression analysis. Results: The total gonial angle is within normal range, but Go1 is below normal and Go2 is above normal. There is no difference between male and female gonial angle measurements (p=0.939 and p=0.861, respectively). Ramus position is positively correlated to Go1 (p=0.003), while AFH (p=0.000), maxilla-mandibular length difference (p=0.000), FMA (p=0.000), Y axis (p=0.000), and posterior cranial base/ramus height (p=0.018) are positively correlated to Go2. PFH is negatively correlated to Go2 (p=0.018). Conclusion: The upper gonial angle is influenced by the position of mandibular ramus, while the lower gonial angle is affected by the posterior and anterior lower facial height and mandibular size and rotation. Javanese with class III malocclusion tends to have hypodivergent facial type, with more posteriorly located mandibular ramus and excess mandibular length.


Subject(s)
Humans , Male , Female , Adult , Orthodontics , Cephalometry/methods , Indonesia/epidemiology , Malocclusion, Angle Class III/therapy , Mandible/anatomy & histology , Regression Analysis , Data Interpretation, Statistical , Maxilla/diagnostic imaging
4.
Dental press j. orthod. (Impr.) ; 26(4): e21bbo4, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1339806

ABSTRACT

ABSTRACT Introduction: Skeletal Class III malocclusion is a deformity of complex treatment, with few intervention alternatives, which are further limited in nongrowing patients. In most cases, orthognathic surgery is the ideal treatment for adults, an option often refused by patients. Mild to moderate skeletal Class III malocclusions and acceptable facial esthetics can benefit from a course of treatment in which dental movements are used to compensate for the skeletal discrepancy. Objective: This study aimed to discuss orthodontic camouflage as an option for adult patients with Class III malocclusion, emphasizing its indications, implications and expected results.


RESUMO Introdução: A má oclusão esquelética de Classe III é uma deformidade de difícil tratamento e com poucas alternativas de intervenção, que ficam ainda mais limitadas em pacientes sem crescimento. Na maior parte dos casos, o tratamento ideal para adultos é a cirurgia ortognática, opção muitas vezes recusada pelo paciente. As más oclusões esqueléticas de Classe III leve a moderada e com estética facial aceitável podem se beneficiar de um plano de tratamento no qual movimentações dentárias são realizadas para compensar a discrepância esquelética. Objetivo: O objetivo do presente estudo foi discutir a camuflagem ortodôntica como opção para pacientes adultos com má oclusão de Classe III, ressaltando suas indicações, implicações e resultados esperados.


Subject(s)
Humans , Adult , Orthognathic Surgical Procedures , Orthognathic Surgery , Malocclusion, Angle Class III/therapy , Cephalometry , Facial Bones
5.
Dental press j. orthod. (Impr.) ; 25(5): 57-65, Sept.-Oct. 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1133691

ABSTRACT

ABSTRACT Introduction: Supervising the development of occlusion, managing problems during the transition from mixed to permanent dentition, as well as controlling environmental factors that contribute to establishing malocclusion, are important actions to achieve a Class I occlusion with facial balance. Among these problems, the malocclusions associated with dysfunctions such as mouth breathing or obstructive sleep apnea syndrome (OSAS), atypical swallowing and abnormal tongue position, open bites, crossbites and maxillomandibular discrepancies, and especially the Class III malocclusion can be listed. Objective: The purpose of this article is to present and discuss the main aspects relevant to the benefits of performing the treatment of Class III malocclusion in patients with growth.


RESUMO Introdução: A supervisão do desenvolvimento da oclusão e o gerenciamento de problemas durante a transição da dentição mista para a permanente, bem como o controle de fatores ambientais que contribuem para estabelecer a má oclusão, são importantes ações para se obter uma oclusão de Classe I com equilíbrio facial. Entre esses problemas, pode-se considerar más oclusões associadas às disfunções como respiração bucal ou síndrome da apneia obstrutiva do sono (SAOS), deglutição atípica, posição anormal da língua, mordidas abertas e mordidas cruzadas e discrepâncias maxilomandibulares, especialmente, a má oclusão de Classe III. Objetivo: O objetivo do presente artigo é apresentar e discutir os principais aspectos pertinentes aos benefícios de se realizar o tratamento da má oclusão de Classe III em pacientes com crescimento.


Subject(s)
Humans , Dentition, Permanent , Dentition, Mixed , Malocclusion , Malocclusion, Angle Class III , Malocclusion/therapy , Malocclusion, Angle Class III/therapy , Mouth Breathing
6.
Dental press j. orthod. (Impr.) ; 25(4): 24-32, July-Aug. 2020. tab
Article in English | LILACS, BBO | ID: biblio-1133681

ABSTRACT

ABSTRACT Objective: The aim of this retrospective study was to evaluate the cephalometric and occlusal changes of orthodontically treated Class III malocclusion patients. Methods: The experimental groups comprised 37 Class III patients treated: G1) without (n=19) and G2) with extractions (n=18) . The control group (G3), matched by age and sex with the experimental groups, consisted of 18 subjects with untreated Class III malocclusion. Cephalometric (radiographs) and occlusal (study models) changes were assessed between the beginning (T1) and the end (T2) of treatment. Intergroup comparisons were performed with one-way ANOVA followed by Kruskal-Wallis tests (p< 0.05). Occlusal changes were evaluated by the peer assessment rating (PAR) index (ANOVA and Kruskal-Wallis tests), and the treatment outcomes were evaluated by the Objective Grading System (OGS) (t-tests). Results: The experimental groups showed a restrictive effect on mandibular anterior displacement and a discrete improvement in the maxillomandibular relationship. Extraction treatment resulted in a greater retrusive movement of the incisors and significant improvements in the overjet and molar relationship in both groups. The PAR indexes were significantly reduced with treatment, and the OGS scores were 25.6 (G1) and 28.6 (G2), with no significant intergroup difference. Conclusions: Orthodontic treatment of Class III malocclusion patients with fixed appliances improved the sagittal relationships, with greater incisor retrusion in the extraction group. Both the extraction and non-extraction treatments significantly decreased the initial malocclusion severity, with adequate and similar occlusal outcomes of treatment.


RESUMO Objetivos: O objetivo desse estudo retrospectivo foi avaliar as alterações cefalométricas e oclusais de pacientes com má oclusão de Classe III tratados ortodonticamente. Método: Os grupos experimentais compreenderam 37 pacientes Classe III tratados: 19 com extrações dentárias (G1) e 18 sem (G2). O grupo controle (G3), compatibilizado em idade e sexo com os grupos experimentais, consistiu de 18 indivíduos com má oclusão de Classe III não tratada. Alterações cefalométricas (radiografias) e oclusais (modelos de estudo) foram avaliadas ao início (T1) e ao fim (T2) do tratamento. Comparações intergrupos foram realizadas com testes ANOVA a um critério e Kruskal-Wallis (p< 0,05). As alterações oclusais foram avaliadas pelo índice PAR (testes ANOVA e Kruskal-Wallis) e os resultados oclusais dos tratamentos, pelo índice Objective Grading System (OGS) (testes t). Resultados: Os grupos experimentais apresentaram um efeito restritivo no posicionamento anterior da mandíbula e uma discreta melhora na relação maxilomandibular. Os tratamentos com extrações resultaram em um maior movimento retrusivo dos incisivos e melhoras significativas no trespasse horizontal e na relação molar em ambos os grupos. Os índices PAR foram reduzidos significativamente com o tratamento, e os índices OGS foram iguais a 25,6 (G1) e 28,6 (G2), sem diferença significativa entre os grupos. Conclusões: O tratamento ortodôntico de pacientes com má oclusão de Classe III com aparelhos corretivos fixos melhorou as relações sagitais, com maior retrusão dos incisivos no grupo com extrações. Ambos os tratamentos, com e sem extrações dentárias, diminuíram significativamente a severidade inicial da má oclusão, com resultados oclusais do tratamento adequados e similares.


Subject(s)
Humans , Overbite , Malocclusion, Angle Class II , Malocclusion, Angle Class III/therapy , Malocclusion, Angle Class III/diagnostic imaging , Cephalometry , Retrospective Studies , Treatment Outcome , Mandible/diagnostic imaging
7.
Int. j. morphol ; 38(4): 1053-1059, Aug. 2020. tab, graf
Article in English | LILACS | ID: biblio-1124896

ABSTRACT

The aim of this study was to evaluate the hard and soft tissue profile changes following treatment of functional and mild skeletal class III malocclusion in mixed dentition by means of the Frankel functional regulator (FR-3) appliance, and to reveal the mechanism and effectiveness of treatment with FR-3 appliance. Twenty-six patients (chronological mean age, 8.7±1.4 years; mean treatment duration, 10.3±1.3 months) with functional and mild skeletal class III malocclusion were selected and treated with FR-3 appliances. Lateral cephalogram was taken pre- and post-treatment, and the data was analyzed by paired-samples t test with SPSS22.0 software package. Differences were considered statistically significant at P < 0.05. The results demonstrated that the FR-3 appliance produced a statistically significant decrease in L1-NB, L1-MP, U1-L1 (P<0.01) and an increase greatly in ANB, MP-FH, Y axis, ANSMe, ANS-Me/N-Me and overjet (P<0.01). SNA, SNB were increased significantly (P<0.05). Meanwhile, N'-Sn-Pog', ULSn-SN, LLSiSN increased, S-N'-Si, LL-EP decreased with significant difference (P<0.01). S-N'-Sn, Cm-Sn-UL, UL-EP, Sn-Mes and Ns-Mes increased with significant difference (P<0.05). Therefore it was concluded that after FR-3 treatment, the position of mandible may rotate clockwise backwards and downwards, with the labioversion of upper incisors and linguoversion of lower incisors. Although point A moved mesially, the length and position of the maxilla did not change significantly. With the protrusion of upper lip and the retrusion of lower lip, the relationship among nose, upper lip, lower lip and chin become harmonious, the profile of soft tissue is more coordinated and attractive.


El objetivo de este estudio fue evaluar los cambios en el perfil de los tejidos duros y blandos después del tratamiento de la maloclusión funcional y leve de la clase III esquelética en la dentición mixta mediante el aparato regulador funcional Frankel (FR-3), y revelar el mecanismo y efectividad del tratamiento con el aparato FR-3. Veintiseis pacientes (edad media 8,7 ± 1,4 años; duración media del tratamiento, 10,3 ± 1,3 meses) con maloclusión funcional y leve de clase esquelética III fueron seleccionados y tratados con aparatos FR-3. El cefalograma lateral se tomó antes y después del tratamiento, y los datos se analizaron mediante la prueba t de muestras con el software SPSS22.0. Las diferencias se consideraron estadísticamente significativas a P <0,05. Los resultados demostraron que el dispositivo FR-3 produjo una disminución estadísticamente significativa en L1-NB, L1MP, U1-L1 (P <0,01) y un gran aumento en ANB, MP-FH, eje Y, ANS-Me, ANS -Me / N-Me y overjet (P <0,01). SNA, SNB se incrementaron significativamente (P <0,05). Mientras tanto, N'Sn-Pog', ULSn-SN, LLSi-SN aumentaron, S-N'-Si, LL-EP disminuyeron con una diferencia significativa (P <0,01). S-N'-Sn, Cm-Sn-UL, UL-EP, Sn-Mes y Ns-Mes aumentaron con una diferencia significativa (P <0,05). Por lo tanto, se concluyó que después del tratamiento con FR-3, la posición de la mandíbula puede girar en sentido reloj hacia atrás y hacia abajo, con labioversión de los incisivos superiores y linguoversión de los incisivos inferiores. Aunque el punto A se movió mesialmente, la longitud y la posición del maxilar no cambiaron significativamente. Con la protuberancia del labio superior y la retrusión del labio inferior, la relación entre la nariz, el labio superior, el labio inferior y el mentón se armoniza, el perfil del tejido blando es más coordinado y atractivo.


Subject(s)
Humans , Male , Female , Child , Orthodontic Appliances, Functional , Dentition, Mixed , Malocclusion, Angle Class III/pathology , Malocclusion, Angle Class III/therapy , Cephalometry
8.
Int. j. odontostomatol. (Print) ; 14(1): 101-108, mar. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1056508

ABSTRACT

RESUMEN: El apiñamiento en edades tempranas, se refleja cuando el tamaño dental no coincide con la longitud de arco. De este modo, resulta importante determinar si la expansión del maxilar podría solucionar por sí solo el problema de apiñamiento en el sector anterior, teniendo en cuenta que este tratamiento es uno de los más antiguos y que comúnmente se ha enfocado en la resolución de alteraciones transversales en dientes posteriores empleándose a edades tempranas. El objetivo fue determinar si la expansión maxilar es efectiva o no, en la corrección del apiñamiento en dentición mixta mediante el análisis de la evidencia disponible. Se realizó una revisión sistemática en español e inglés, para establecer la máxima evidencia posible, con las indicaciones de la guía PRISMA. Dos artículos cumplieron con la calidad de la revisión. En el primero se estableció que el apiñamiento mejoro despues del tratamiento de expansion maxilar, con una recidiva menor en la dentición permanente. En el segundo, se encontró que el apiñamiento en los incisivos permanentes superiores fue corregido cuando se retiró el aparato expansor. Se concluyó que la evidencia actual no tiene la suficiente calidad metodológica para llevar a una toma de decisión. Se recomienda hacer ensayos clínicos aleatorizados en este tema.


ABSTRACT: Crowding at early ages is reflected when tooth size does not coincide with arch length. Thus, it is important to determine whether maxillary expansion alone could solve the problem of crowding in the anterior sector, bearing in mind that this treatment is one of the oldest and has commonly focused on solving transverse alterations in posterior teeth used at an early age. The objective was to determine whether or not maxillary expansion is effective in correcting crowding in the mixed dentition by analysing the available evidence. A systematic review was carried out in Spanish and English, to establish the maximum possible evidence, with the indications of the PRISMA guide. Two articles met the quality of the review. The first established that crowding improved after the treatment of maxillary expansion, with a minor recurrence in the permanent dentition. In the second, it was found that crowding in the upper permanent incisors was corrected when the expanding appliance was removed. The current evidence is not of sufficient methodological quality to lead to a decision. Randomized clinical trials are recommended in this area.


Subject(s)
Humans , Palatal Expansion Technique , Extraoral Traction Appliances , Overbite/therapy , Malocclusion, Angle Class III/therapy , Mass Screening , Orthodontic Appliance Design , Dentition, Mixed
9.
Rev. ADM ; 77(1): 41-45, ene.-feb. 2020. ilus
Article in Spanish | LILACS | ID: biblio-1088066

ABSTRACT

Introducción: La maloclusión clase III es considerada como severa y en la mayoría de los pacientes la etiología suele estar combinada entre componentes esqueléticos y dentoalveolares. Las posibilidades terapéuticas dependerán de la edad biológica del paciente y del tipo de maloclusión. Conforme va aumentando la edad del paciente va menguando la capacidad de crecimiento y se va asentando la relación de clase III esquelética. Las maloclusiones de clase III esqueléticas se pueden corregir mediante extracciones dentales y cirugía ortognática. Caso clínico: Paciente masculino de 13 años de edad con protrusión mandibular, discrepancia óseo dentaria negativa, convexidad facial disminuida y clase III dental y esqueletal. Resultados: Se resolvió la discrepancia óseo dentaria negativa del paciente, se logró la clase I Molar y canina con una sobremordida adecuada (AU)


Introduction: Class III malocclusion is considered severe and in most patients the etiology is usually combined between skeletal and dentoalveolar components. The therapeutic possibilities depend on the biological age of the patient and the type of malocclusion. As it increases the age of the patient wanes growth capacity and Will settled the relationship skeletal class III. The skeletal class III malocclusion can be corrected by tooth extractions and orthognathic surgery. Case report: Male patient 13 years old with mandibular protrusion, negative tooth bone discrepancy, decreased facial convexity and dental and skeletal class III. Results: Dental patient refusal bone discrepancy was resolved, I molar and canine class and adequate overbite was achieved (AU)


Subject(s)
Humans , Male , Adolescent , Palatal Expansion Technique , Extraoral Traction Appliances , Orthodontic Appliances, Fixed , Malocclusion, Angle Class III/therapy , Patient Care Planning , Tooth Extraction , Orthodontic Space Closure
10.
Rev. Fac. Odontol. (B.Aires) ; 34(78): 7-12, 2019. ilus
Article in Spanish | LILACS | ID: biblio-1116033

ABSTRACT

La aplicación del LÁSER (light amplification of stimulation emision of radiation) en las áreas de la medicina y la odontología viene demostrando una constante evolución, brindándonos alternativas a los tratamientos convencionales. Los láseres quirúrgicos de tejidos blandos muestran grandes ventajas comparados a los procedimientos habituales de corte, ya sea con bisturí frío o electrobisturí. La mínima necesidad de anestesia, la analgesia intra y postoperatoria, la coagulación inmediata, la cicatrización por segunda, el efecto bactericida, la ausencia de puntos de sutura, el confort postoperatorio, son algunas de las ventajas que hacen que la cirugía con láser sea una opción indiscutible que está ganando terreno entre los profesionales de la salud (AU)


Subject(s)
Humans , Female , Child , Electrosurgery/methods , Extraoral Traction Appliances , Lasers , Lingual Frenum/surgery , Malocclusion, Angle Class III/therapy , Patient Care Team , Argentina , Schools, Dental , Speech Therapy , Wound Healing , Palatal Expansion Technique , Treatment Outcome , Orthodontic Appliances, Functional
11.
Odovtos (En línea) ; 20(2): 31-37, May.-Aug. 2018. graf
Article in English | LILACS, BBO | ID: biblio-1091444

ABSTRACT

Abstract Skeletal Class III is a malocclusion characterized by anterior crossbite as a result of an abnormal skeletal maxillary and mandibular base discrepancy, which involves disharmony of craneofacial skeleton and profile. The preferred management for children having skeletal Class III malocclusion with retruded maxilla and/or prognathic mandible is the use of devices that encourage the growth and anterior movement of the maxilla bone and/or restrict the exessive mandible growth. The orthopedic treatment consisting of a face mask with rapid maxillary expansion (RME) produces the most dramatic results in the shortest period of time. The purpose of this article is to review a quick correction of skeletal class III maloclussion in the primary dentition through a case example with use of a face mask plus rapid maxillary expansion therapy in a 5 year-old male patient due to a combination of retruded maxilla and protruded mandible, in primary dentition, who was treated with a Petit face mask in conjunction with a bonded RME intraoral appliance added with bite blocks. The first evident occlusal outcomes were a clockwise rotation of the mandible, a positive overjet of 3 mm, a correct overbite, a canine Class I relationship, and a bilateral flush terminal plane. After discussing the present clinical case report and the related published literature, we concluded that skeletal class III malocclusions should be treated as soon as the first clinical signs of abnormal craniofacial growth are recognized, during the first years of life.


Resumen La clase III esquelética es una maloclusión caracterizada por mordida cruzada anterior como resultado de una discrepancia esquelética de la base maxilar y mandibular, que implica desarmonía craneofacial y del perfil. El tratamiento de elección para niños con maloclusión clase III esquelética con mandíbula maxilar y/o prognática es el uso de dispositivos que estimulan el crecimiento y el movimiento anterior del hueso maxilar y/o restringen el crecimiento excesivo de la mandíbula. El tratamiento ortopédico que consiste en una máscara facial con expansión maxilar rápida (EMR) produce resultados en un período de tiempo más corto. El propósito de este artículo es revisar una corrección rápida de la maloclusión de clase III esquelética en la dentición primaria mediante el uso de una máscara facial más terapia de expansión maxilar rápida en un paciente masculino de 5 años debido a una combinación de maxilar retruido y mandíbula prominente, en dentición primaria, que fue tratada con una mascarilla Petit junto con un dispositivo intraoral unido con bloques de mordida. Los primeros resultados evidentes fueron una rotación en sentido horario de la mandíbula, un overjet positivo de 3 mm, una sobremordida correcta, una relación canina de Clase I y un plano terminal de descarga bilateral. Después de discutir el presente informe de caso clínico y la literatura publicada relacionada, concluimos que las maloclusiones de clase III esqueléticas deberían tratarse tan pronto como se reconozcan los primeros signos clínicos de crecimiento craneofacial anormal, durante los primeros años de vida.


Subject(s)
Humans , Male , Child , Palatal Expansion Technique , Malocclusion, Angle Class III/therapy , Dentition, Mixed , Facial Masks
12.
Dental press j. orthod. (Impr.) ; 23(3): 47-57, May-June 2018. graf
Article in English | LILACS | ID: biblio-953032

ABSTRACT

ABSTRACT It is possible to unify three-dimensional customized orthodontic techniques and three-dimensional surgical technology. In this case report, it is introduced a treatment scheme consisting of passive self-ligation customized brackets and virtual surgical planning combined with the orthognathic surgery-first approach in a Class III malocclusion patient. Excellent facial and occlusal outcomes were obtained in a reduced treatment time of five months.


RESUMO É possível unificar técnicas ortodônticas personalizadas e tecnologia de planejamento cirúrgico 3D. No presente relato de caso, apresenta-se um plano de tratamento envolvendo o uso de braquetes autoligáveis passivos personalizados e planejamento cirúrgico virtual, combinado com cirurgia ortognática de benefício antecipado, em um paciente com má oclusão de Classe III. Foram obtidos excelentes resultados faciais e oclusais em um tempo reduzido de tratamento, de 5 meses.


Subject(s)
Humans , Male , Young Adult , Patient Care Planning , Drug Design , Orthodontic Brackets , Malocclusion, Angle Class III/therapy , Orthodontic Appliance Design , Imaging, Three-Dimensional , Cone-Beam Computed Tomography , Malocclusion, Angle Class III/surgery , Malocclusion, Angle Class III/diagnostic imaging
13.
Int. j. morphol ; 36(2): 430-434, jun. 2018. tab, graf
Article in English | LILACS | ID: biblio-954132

ABSTRACT

The objective of the study was to investigate the morphological changes of skeletal class III malocclusion in mixed dentition with light force protraction combined activities. Randomly selected 30 cases of orthodontics in Shanxi Medical University orthodontics patients (ages: 6-10 years) of the lateral cephalograms. Using the oral maxillary casting type of pre-traction device, according to the condition of maxillary dentition to select the corresponding activities of the movable expansion appliance, each side of the force of about 150-200 g, requiring patients to wear 10-12 hours a day, the appliance should be removed after reaching normal occlusion. The correlation cephalometric profile of the cranial lateral radiographs before and after orthodontic treatment was measured. All patients with skeletal class III malocclusion were improved, concave type became direct type, measurements SNA, ANB, A-Ptm, MP-SN, ANS-Me/N-Me increased, maxillary advancement and reconstruction are more obvious; mandible rotates clockwise; the increase of lip inclination of anterior teeth compensatory changes, lower anterior tooth inclination changes smaller; upper lip forward, nasolabial angle decreased, improved appearance significantly. Light force protraction combined activities can make the mixed dentition of skeletal class III malocclusion in patients with significant improvement in profile appearance.


El objetivo de este estudio fue investigar los cambios morfológicos de la maloclusión clase esquelética III, en la dentición mixta, con actividades combinadas de protracción de la fuerza ligera. Se seleccionaron aleatoriamente 30 casos de ortodoncia en pacientes de ortodoncia de la Universidad Médica de Shanxi (edades: 6-10 años) a partir de cefalogramas laterales, utilizando el tipo de dispositivo de pretracción de vaciado maxilar oral, de acuerdo con la condición de la dentición maxilar para seleccionar las actividades correspondientes del dispositivo de expansión móvil, cada lado con fuerza de alrededor de 150-200 g, requiriendo que los pacientes los utilizaran de 10 a 12 horas al día. El dispositivo debía ser retirado después de alcanzar la oclusión normal. Se midió el perfil cefalométrico de correlación de las radiografías laterales craneales, antes y después del tratamiento ortodóncico. Se observó mejoramiento en todos los pacientes con maloclusión de clase esquelética. Las mediciones SNA, ANB, APtm, MP-SN, ANS-Me / N-Me aumentaron, el avance y la reconstrucción maxilar fueron los cambios más significativos; la mandíbula giró en el sentido de las agujas del reloj, se observó un aumento de la inclinación labial de los dientes anteriores. Fue reducida la inclinación anterior del diente inferior, el ángulo nasolabial disminuyó y en general mejoró significativamente la apariencia. Las actividades combinadas de protrusión de la fuerza radiante pueden llevar a una mejora signficativa en el perfil de pacientes con dentición mixta de maloclusión clase III.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Palatal Expansion Technique , Dentition, Mixed , Malocclusion, Angle Class III/pathology , Malocclusion, Angle Class III/therapy , Cephalometry , Extraoral Traction Appliances
14.
Dental press j. orthod. (Impr.) ; 23(2): 75-86, Mar.-Apr. 2018. tab, graf
Article in English | LILACS | ID: biblio-953020

ABSTRACT

ABSTRACT The purpose of this paper was to emphasize the importance of the orthodontic setup in treatment planning for skeletal Class III malocclusion correction in an adult patient with moderate lower anterior crowding and anterior crossbite associated with two supernumerary lower incisors.


RESUMO O objetivo desse artigo é enfatizar a importância do setup ortodôntico no planejamento do tratamento da má oclusão de Classe III esquelética de uma paciente adulta com apinhamento anteroinferior moderado e mordida cruzada anterior associada à presença de dois incisivos inferiores supranumerários.


Subject(s)
Humans , Female , Young Adult , Orthodontics, Corrective/methods , Patient Care Planning , Malocclusion, Angle Class III/surgery , Malocclusion, Angle Class III/therapy , Orthodontic Wires , Orthodontics, Corrective/instrumentation , Tooth Extraction , Tooth Movement Techniques/instrumentation , Image Processing, Computer-Assisted/methods , Radiography, Dental , Cephalometry/methods , Treatment Outcome , Orthodontic Brackets , Orthodontic Appliance Design , Photography, Dental , Dental Arch/surgery , Dental Arch/pathology , Esthetics, Dental , Incisor/pathology , Malocclusion/therapy , Malocclusion/diagnostic imaging , Malocclusion, Angle Class III/diagnostic imaging
15.
Rev. Ateneo Argent. Odontol ; 59(2): 13-18, 2018. ilus
Article in Spanish | LILACS | ID: biblio-1051140

ABSTRACT

Se analiza la difícil tarea de decidir, por parte del especialista, un camuflaje ortodóncico en aquellos pacientes con mesioclusiones verdaderas que no aceptan un tratamiento donde se realice cirugía ortognática. Cuál debe ser el límite que nos impone el caso clínico para poder tomar la decisión de realizar el tratamiento y qué debe esperar el paciente y el profesional en los resultados finales, una vez concluido. Somos los ortodoncistas los que tenemos el deber de decidir qué pacientes podrían ser tratados con camuflaje y cuáles, con cirugía ortognática, pero será el paciente el que tome la decisión final con nuestro asesoramiento (AU)


We discuss the difficult task of deciding, on the part of the specialist, an orthodontic camouflage in those patients with true mesioclusions who do not accept a treatment where orthognathic surgery is performed. What should be the limit imposed by the clinical case in order to make the decision to carry out the treatment and what the patient and the professional should expect in the final results, once concluded. We orthodontists have the duty to decide which patients could be treated with camouflage and which, with orthognathic surgery, but it will be the patient who makes the final decision with our advice (AU)


Subject(s)
Humans , Female , Child , Extraoral Traction Appliances , Malocclusion, Angle Class III/therapy , Tooth Movement Techniques , Cephalometry/methods , Treatment Outcome , Dentist-Patient Relations
16.
Article in Spanish | LILACS | ID: biblio-1016460

ABSTRACT

Secuencia de tratamiento con ortopedia maxilar en una niña con síndrome de Down que presenta una mesiorrelación, debido a un maxilar superior chico y retruído y el maxilar inferior grande, con mordida invertida anterior y bilateral, alteraciones funcionales y tipo de crecimiento rotacional anterior, microdoncia y agenesias múltiples (AU)


Treatment with maxillary orthopedics in a girl with Down´s syndrome who presents a mesial relation due to a small and retruded superior maxillary and a big inferior maxillary, with inverted palatal and bilateral bite, functional alterations and palatal rotational growth, microdontia and multiple agenesis (AU)


Subject(s)
Humans , Female , Child , Down Syndrome/therapy , Extraoral Traction Appliances , Malocclusion, Angle Class III/therapy , Patient Care Planning , Argentina , Prognosis , Cephalometry/methods , Palatal Expansion Technique , Anodontia
17.
Dental press j. orthod. (Impr.) ; 22(6): 49-55, Nov.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-891111

ABSTRACT

ABSTRACT Objective: The purpose of this study was to assess the efficiency of compensatory orthodontic treatment of patients with mild Class III malocclusion with two preadjusted bracket systems. Method: Fifty-six matched patients consecutively treated for mild Class III malocclusion through compensatory dentoalveolar movements were retrospectively evaluated after analysis of orthodontic records. The sample was divided into two groups according to the brackets used: Group 1 = non-Class III compensated preadjusted brackets, Roth prescription (n = 28); Group 2 = compensated Class III preadjusted brackets, Capelozza III prescription (n = 28). Cephalometric analysis, number of appointments and missed appointments, months using Class III elastics, and bond/band failures were considered. Treatment time, Peer Assessment Rating (PAR) index at the beginning (PAR T1) and end of treatment (PAR T2) were used to calculate treatment efficiency. Comparison was performed using a MANOVA at p< 0.05. Results: Missed appointments, bond or band failures, number of months using the Class III intermaxillary elastics, and cephalometric measurements showed no statistically significant difference (p> 0.05) between groups. Patients treated with Roth brackets had a treatment time 7 months longer (p= 0.01). Significant improvement in the patient's occlusion (PAR T2-T1) was observed for both groups without difference (p= 0.22). Conclusions: Orthodontic brackets designed for compensation of mild Class III malocclusions appear to be more efficient than non-compensated straight-wire prescription brackets. Treatment time for Class III patients treated with brackets designed for compensation was shorter than with Roth prescription and no difference in the quality of the occlusal outcome was observed. A prospective randomized study is suggested to provide a deeper look into this subject.


RESUMO Objetivo: o objetivo desse estudo foi avaliar a eficiência do tratamento ortodôntico compensatório de pacientes com má oclusão de Classe III suave usando dois diferentes sistemas de braquetes pré-ajustados. Métodos: foram avaliados retrospectivamente, após análise de registros ortodônticos, cinquenta e seis pacientes tratados consecutivamente de má oclusão de Classe III, por meio de movimentos de compensação dentária. A amostra foi dividida em dois grupos, de acordo com os braquetes utilizados: Grupo 1 - braquetes pré-ajustados não compensatórios para Classe III, prescrição Roth (n = 28); Grupo 2 - braquetes pré-ajustados para tratamento compensatório de Classe III, prescrição Capelozza Padrão III (n = 28). Considerou-se a análise cefalométrica, número de consultas realizadas e de consultas perdidas, meses de uso dos elásticos intermaxilares de Classe III e quebras de braquetes/bandas. Foram utilizados para calcular a eficiência do tratamento: tempo de tratamento, índice PAR (Peer Assessment Rating) ao início (PAR T1) e fim de tratamento (PAR T2). A comparação intergrupos foi realizada com o teste MANOVA, a p< 0,05. Resultados: não houve diferença estatisticamente significativa (p> 0,05) entre os grupos quanto às medidas cefalométricas, número de consultas perdidas, quebras de braquetes/bandas e tempo de uso dos elásticos de Classe III. Os pacientes tratados com braquetes Roth tiveram tempo de tratamento sete meses maior (p= 0,01). Observou-se melhora significativa na oclusão dos pacientes (PAR T2-T1) para ambos os grupos, sem diferença estatística significativa (p= 0,22). Conclusão: os braquetes ortodônticos projetados para compensação das más oclusões de Classe III parecem ser mais eficientes do que os pré-ajustados não compensatórios. O tempo de tratamento para pacientes Classe III tratados com braquetes projetados para compensação foi menor do que com a prescrição Roth, e nenhuma diferença na qualidade da oclusão final foi observada. Sugere-se um estudo prospectivo randomizado, para fornecer uma visão mais profunda sobre esse assunto.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Young Adult , Orthodontic Appliances , Tooth Movement Techniques/instrumentation , Orthodontic Brackets , Malocclusion, Angle Class III/therapy , Time Factors , Tooth Movement Techniques/methods , Cephalometry , Retrospective Studies , Treatment Outcome , Orthodontic Appliance Design
18.
Dental press j. orthod. (Impr.) ; 22(6): 86-98, Nov.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-891110

ABSTRACT

ABSTRACT Skeletal Class III malocclusions are ideally treated with orthodontic-surgical approaches. However, if there are no significant soft tissue implications and the patient does not want to undergo orthognatic surgery, other treatment options may be considered. The current case report describes a compensatory alternative for Class III malocclusion treatment, by means of mandibular canine extractions. This treatment alternative provided facial profile and occlusal improvement, which remains stable seven years posttreatment.


RESUMO As más oclusões esqueléticas de Classe III são idealmente tratadas com intervenções ortodôntico-cirúrgicas. Contudo, se não existirem implicações estéticas faciais e se o paciente não desejar se submeter à cirurgia ortognática, outras opções de tratamento podem ser consideradas. O presente caso clínico descreve um tratamento compensatório alternativo para a má oclusão de Classe III, com extrações de caninos inferiores. Esse tratamento alternativo propiciou melhoras no perfil facial e na oclusão, que permaneceu estável após sete anos da sua finalização.


Subject(s)
Humans , Female , Adolescent , Orthodontics, Corrective/methods , Tooth Extraction , Cuspid/surgery , Malocclusion, Angle Class III/surgery , Malocclusion, Angle Class III/therapy , Mandible/surgery , Orthodontics, Corrective/instrumentation , Patient Care Planning , Radiography, Panoramic , Cephalometry , Dental Casting Technique , Palatal Expansion Technique , Treatment Outcome , Orthodontic Brackets , Extraoral Traction Appliances , Facial Asymmetry/complications , Facial Asymmetry/therapy , Malocclusion, Angle Class III/diagnostic imaging , Mandible/diagnostic imaging
19.
Dental press j. orthod. (Impr.) ; 22(3): 109-118, May-June 2017. tab, graf
Article in English | LILACS | ID: biblio-891068

ABSTRACT

ABSTRACT Angle Class III malocclusion is characterized by an anteroposterior dental discrepancy with or without anteroposterior and vertical skeletal changes. Patients usually seek orthodontic treatment because facial appearance is compromised in most cases. The present study describes the clinical case of a 12-year and 6-month-old girl in her final stage of pubertal growth presenting Class III malocclusion with anteroposterior and vertical discrepancies. Initial treatment consisted of maxillary expansion using a Hass expander followed by the use of a Petit facemask for a minimum of 16 hours a day. During corrective treatment, Class III elastics were used to complement protraction. At the end of the treatment, skeletal discrepancy had improved, and the ANB angle increased from 0 to 2o. Angle Class III malocclusion, anterior crossbite and open bite were corrected. This case was presented to the Committee of the Brazilian Board of Orthodontics and Facial Orthopedics (BBO) as part of the requisites to become a BBO Diplomate.


RESUMO A má oclusão de Classe III de Angle tem como característica uma discrepância dentária anteroposterior, que pode ou não estar acompanhada por alterações esqueléticas tanto no sentido anteroposterior quanto no vertical. O aspecto facial fica comprometido na maioria dos casos, levando o paciente a procurar o tratamento ortodôntico. O presente artigo descreve o caso clínico de uma paciente com doze anos e seis meses de idade, portadora de má oclusão de Classe III, com discrepância anteroposterior e vertical, em fase final de crescimento. O tratamento inicial consistiu de expansão maxilar com o disjuntor de Haas e utilização da máscara facial de Petit por no mínimo 16 horas/dia. Na fase de tratamento corretivo, foram usados elásticos Classe III como complemento à tração reversa. Ao término do tratamento, obteve-se melhora na desarmonia esquelética, com aumento do ângulo ANB de 0o para 2o. Quanto ao padrão dentário, corrigiu-se a relação de Classe III de Angle, o leve cruzamento entre os incisivos e a mordida aberta anterior. Esse caso foi apresentado à Diretoria do Board Brasileiro de Ortodontia e Ortopedia Facial (BBO) como parte dos requisitos para a obtenção do título de Diplomado pelo BBO.


Subject(s)
Humans , Female , Child , Palatal Expansion Technique , Extraoral Traction Appliances , Malocclusion, Angle Class III/therapy , Vertical Dimension , Radiography, Panoramic , Cephalometry , Dental Models
20.
Rev. Asoc. Odontol. Argent ; 105(1): 12-18, mar. 2017. ilus
Article in Spanish | LILACS | ID: biblio-869388

ABSTRACT

Objetivo: presentar un caso clínico de mordida cruzada anterior funcional tratado mediante la técnica de Pistas Directas Planas. Caso clínico: Niña de cuatro años de edad, con diagnósticode mordida cruzada anterior funcional en dentición decidua. Su tratamiento se realizó en el Servicio Integral I del Hospital de Odontología Infantil “Don Benito Quinquela Martín”. La corrección de la maloclusión se logró tras 2 meses de uso de las Pistas Directas Planas. Estas fueron removidas a los 6 meses, cuando se observó una correcta posiciónmandibular, intercuspidación posterior y una función oclusal estable, que devolvieron el equilibrio al sistema estomatognático. Conclusión: Las Pistas Directas Planas constituyen unaalternativa de tratamiento temprano para las maloclusiones. Su sencillez en la realización, su eficacia en los resultados y el bajo costo económico hace que sea un método de elección.


Aim: to illustrate a clinical case of functional anteriorcrossbite treated using Planas Direct Tracks.Case report: A four-year-old female patient withfunctional anterior crossbite in deciduous dentition wastreated at the “Don Benito Quinquela Martín” Children’sDental Hospital. The correction of the malocclusion wasachieved 2 months after using planas direct tracks. Thedevice was removed 6 months later getting a mandibularcorrect position and intercuspidation, returning the balanceto the stomatognathic system through a balancedocclusal function.Conclusion: The use of Planas Direct Tracks is an earlytreatment alternative for malocclusions. Its simplicity ofimplementation, efficiency in results and low cost makes it asuitable method.


Subject(s)
Humans , Female , Child, Preschool , Dental Care for Children/methods , Malocclusion, Angle Class III/classification , Malocclusion, Angle Class III/therapy , Argentina , Dental Occlusion , Dental Service, Hospital , Diagnosis, Differential , Follow-Up Studies , Orthodontics, Corrective/methods , Mouth Rehabilitation/methods , Composite Resins/therapeutic use
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