Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 25.543
Filtrar
2.
Oral Maxillofac Surg Clin North Am ; 32(1): 53-69, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31699580

RESUMO

The transverse dimension is a critical component of comprehensive treatment in orthognathic surgery. Several treatment approaches exist and the team must consider the patient's needs, desires, and limitations when working to correct the malocclusion. Treatment approaches may include only orthodontic expansion or rapid palatal orthodontic expansion; however, in adults, the orthodontist may require surgical assistance to expand the bony maxilla. Segmental maxillary expansion may be indicated in severe transverse deficiencies of the maxillary arch or dentofacial deformity patients also requiring vertical and sagittal corrections. The various treatment options, advantages, and disadvantages, and indications for each surgical approach are discussed.


Assuntos
Má Oclusão/cirurgia , Procedimentos Cirúrgicos Ortognáticos/métodos , Técnica de Expansão Palatina , Adulto , Humanos , Maxila
3.
Oral Maxillofac Surg Clin North Am ; 32(1): 117-134, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31699581

RESUMO

Temporomandibular joint (TMJ) arthritis impacts mandibular growth and development. This can result in skeletal deformity, such as facial asymmetry and/or malocclusion asymmetry. This article reviews the unique properties of TMJ and dentofacial growth and development in the setting of juvenile idiopathic arthritis (JIA). Specific orthopedic/orthodontic and surgical management of children with JIA and TMJ arthritis is discussed. The importance of interdisciplinary collaboration is highlighted.


Assuntos
Artrite Juvenil/complicações , Deformidades Dentofaciais , Má Oclusão , Procedimentos Cirúrgicos Ortognáticos/métodos , Transtornos da Articulação Temporomandibular/complicações , Articulação Temporomandibular/patologia , Criança , Humanos , Desenvolvimento Maxilofacial
4.
Oral Maxillofac Surg Clin North Am ; 32(1): 39-51, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31699583

RESUMO

Although all dentofacial deformities involve deviation of skeletal and dental units that require correction, the timing and method of treatment can vary considerably. Growth is a key consideration when managing dentofacial deformities, because it has a direct impact on the timing and method of management. Some deformities may be intercepted and managed during growth, whereas others can only be definitively managed after cessation of growth. This article focuses on clinical considerations of growth in managing dentofacial deformities, and discusses methods of growth evaluation and interceptive orthodontic management strategies in different types of dentofacial deformities.


Assuntos
Deformidades Dentofaciais/cirurgia , Má Oclusão/cirurgia , Ortodontia Interceptora , Procedimentos Cirúrgicos Ortognáticos , Ortopedia , Humanos , Má Oclusão/diagnóstico , Planejamento de Assistência ao Paciente
5.
Oral Maxillofac Surg Clin North Am ; 32(1): 71-82, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31744601

RESUMO

Complications in orthognathic surgery are commonly a result of inadequate preoperative planning and communication between the surgeon and orthodontist. Unfavorable outcomes can often be avoided when overall treatment goals along with a surgical and orthodontic plan are developed and agreed upon by the orthodontist, surgeon, and patient before the start of active tooth movement or any surgical procedures. Continuous evaluation of the patient's progress throughout treatment and subsequent communication between the surgeon and orthodontist are recommended to prevent frequent errors, such as inadequate dental decompensation, poor appliance selection or management, and occasional contraindicated orthodontic elastic traction or tooth movements.


Assuntos
Má Oclusão , Ortodontia Corretiva/métodos , Ortodontia , Cirurgia Ortognática/métodos , Procedimentos Cirúrgicos Ortognáticos/métodos , Planejamento de Assistência ao Paciente , Humanos , Equipe de Assistência ao Paciente , Complicações Pós-Operatórias
7.
Arch Oral Biol ; 109: 104588, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31669922

RESUMO

OBJECTIVE: Dental occlusion are frequently changed in clinic. Molecular responses in jaw muscles to aberrant dental occlusion are changes are attractive, yet remain are obscure. DESIGN: Unilateral anterior crossbite (UAC) prostheses were applied to Sprague-Dawley rats and then ceased after two weeks to detect the reactions of the masseter, a representative jaw elevator, and the lateral pterygoid muscle (LPM), a representative jaw depressor. RESULTS: Two weeks of UAC elicited mild injury of the two muscles. Myogenesis and protective reactions were detected as increases in αB-crystallin expression in the masseter after 3 days and in the LPM after 2 weeks, and increases in desmin expression in both muscles after 2 weeks. A switch in fibre types from IIb to IIx occurred in the LPM but not in the masseter. Inflammatory responses, shown by the infiltration of inflammatory cells and increases in TNF-α mRNA expression, and fibrosis responses, shown by increased mRNA expression of Type I and III collagens, appeared very mild in the two muscles. These responses were partially recovered by the cessation of UAC. During the whole process, no obvious changes were observed in mitochondrial function, as indicated by the levels of proliferator-activated receptor γ coactivator 1α, mitofusin-2 and voltage-dependent anion channel. CONCLUSIONS: UAC causes injury and very limited inflammatory and fibrosis adaption in the masseter and LPM. Both muscles respond with myogenesis and protective activity. The LPM responds also with muscle fibre isoform alternations. These alterations were partially recovered by the cessation of dental stimulation at an early stage.


Assuntos
Implantes Dentários/efeitos adversos , Má Oclusão , Músculo Masseter/fisiopatologia , Músculos Pterigoides/fisiopatologia , Animais , Fibrose , Inflamação , Arcada Osseodentária , Músculo Masseter/lesões , Fibras Musculares Esqueléticas , Músculos Pterigoides/lesões , Ratos , Ratos Sprague-Dawley
8.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 793-797, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874476

RESUMO

With the improvement of people's living standards and oral health education, the demand for orthodontic treatment is increasing. The comprehensive goal of orthodontic treatment is not only to obtain esthetic dentition and appearance, but also to obtain oral health, general health and mental and psychological health. Therefore, how to effectively prevent the risks in orthodontic treatment is particularly important, and it is also an important content that orthodontists must master. In this paper, the prevention of related risks in orthodontic treatment was discussed.


Assuntos
Assistência Odontológica , Ortodontia Corretiva , Gestão de Riscos , Estética Dentária , Humanos , Má Oclusão/terapia
9.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 798-802, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874477

RESUMO

Clear aligner, as a transparent and removable appliance, offers an alternative to conventional fixed appliance to patients with high demands for esthetics and comfort. Meanwhile, the rapid development of materials and techniques has made clear aligner more widely used in orthodontics. However, there are still several concerns and risks in clinical practice of clear aligners, which may result in unfavorable outcomes. Herein, we have discussed the clinical risks of clear aligner therapy, and provided some targeted strategies, in order to promote the clinical application of clear aligners.


Assuntos
Má Oclusão/terapia , Desenho de Aparelho Ortodôntico , Aparelhos Ortodônticos Removíveis , Assistência Odontológica , Estética Dentária , Humanos
10.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 803-807, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874478

RESUMO

Facial aesthetic defect is obviously different from facial aesthetic standard. Orthodontic treatment may expose or even magnify other facial aesthetic defects while solving patients' main problems. There are many aesthetic traps in facial bone structure, soft tissue and teeth. Orthodontists should comprehensively recognize patients' dentofacial aesthetic defects. When solving major problems, we should keep an eye on the changes of minor problems and other uncontrollable factors. Potential risks should be clearly recognized and prevented.


Assuntos
Estética Dentária , Má Oclusão/terapia , Ortodontia Corretiva , Gestão de Riscos , Assistência Odontológica , Humanos
11.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 808-814, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874479

RESUMO

Temporomandibular joint (TMJ) related signs and symptoms are frequently found in adolescent and adult orthodontic patients. TMJ health has long been considered important in orthodontic treatment for many decades, and routine screening and management of TMJ problems should be emphasized in orthodontic population. This paper was to review the TMJ problems in orthodontic patients and to set the strategy in clinical orthodontics.


Assuntos
Má Oclusão/terapia , Ortodontia Corretiva , Transtornos da Articulação Temporomandibular/etiologia , Humanos , Gestão de Riscos , Articulação Temporomandibular/fisiopatologia
12.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 815-818, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874480

RESUMO

In recent years, more and more female adult patients complained the aesthetic problems such as the decline of face fullness during the treatment. In the course of 2-3 years of orthodontic treatment, the age-related change of the facial bone structure in the adult is limited, and therefore, the shape change mainly depends on the change of the soft tissue. In this paper, the factors such as age-increasing factors, the structural factors of the face,the width of the arch and the change of the occlusal height were analyzed to explore the changes of facial soft tissue and related factors in the treatment with a view to providing a reference for clinical application.


Assuntos
Fatores Etários , Estética Dentária , Face , Ortodontia , Adulto , Cefalometria , Assistência Odontológica , Ossos Faciais , Feminino , Humanos , Má Oclusão
13.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 54(12): 851-854, 2019 Dec 09.
Artigo em Chinês | MEDLINE | ID: mdl-31874487

RESUMO

Space reduction after the premature loss of the second primary molars is one of the important factors affecting the occurrence of malocclusion, often increasing the demand for orthodontic treatment. It has great significance to select and apply appropriate appliances to maintainthe space soon after the premature loss of the second primary molars. The space should be maintained until the adjacent teeth and the successors erupt successfully. This review summarizes the selection and clinical application of the space maintainer for the premature loss of the second primary molars in different periods, to improve dentists' awareness of the importance of space maintainers and to provide advises for clinical choices.


Assuntos
Má Oclusão/terapia , Dente Molar , Mantenedor de Espaço em Ortodontia , Dente Decíduo , Humanos
14.
Mem. Inst. Invest. Cienc. Salud (Impr.) ; 17(3): 49-54, dic.2019. tab
Artigo em Espanhol | LILACS, BDNPAR | ID: biblio-1047804

RESUMO

El objetivo fue determinar la prevalencia de hábitos de succión no nutritiva y su relación con maloclusiones y anomalías dentomaxilares en preescolares de Coronel Oviedo - Paraguay, durante el año 2015. Se realizó un estudio observacional, descriptivo de corte transversal con componente analítico, con muestreo probabilístico estratificado bietápico. La población de estudio estuvo constituida por niños del sexo masculino y femenino de la Educación Inicial (maternal, jardín y pre-escolar). Las variables del estudio fueron la succión no nutritiva (succión digital y succión del chupete, edad, sexo, onicofagia y el uso del biberón. Los datos fueron recabados mediante una encuesta dirigida a los padres; acompañada de la inspección bucodental. Fueron incluidos 344 escolares, el 48,84% (168) tenía una edad de 5 años y el 52,91% (182) era del sexo masculino. El 13,08% (45) realizaba succión digital, el 9,59% (33) succión de chupete y el 38,95% (134) otros hábitos. Al diferenciar la presencia de hábitos con las características demográficas se pudo apreciar como la presencia de succión digital estaba relacionada con la mordida abierta (p=0.000), la mordida cruzada (p=0.049), con la orientación de los incisivos (p=0.000), la forma de la arcada (p=0.000), y la oclusión de vista transversal (p=0.046) y sagitalmente (p=0.000). La prevalencia de hábitos de succión no nutritiva en estos escolares fue alta y estaba relacionada con la maloclusión y la aparición de anomalías dentomaxilares, por lo que la educación de padres para la prevención de dichas condiciones es fundamental(AU)


The objective was to determine the prevalence of non-nutritive suction habits and their relationship with malocclusions and dentomaxillary anomalies in preschool children of Coronel Oviedo - Paraguay, during 2015. An observational, descriptive cross-sectional study with analytical component was carried out, with two-stage stratified probabilistic sampling. The study population consisted of boys and girls of the Pre-Primary Education (nursery, kindergarten and pre-school). The variables of the study were the non-nutritive suction (digital suction and suction of the pacifier, age, sex, onychophagia and the use of the feeding bottle). The data were collected through a survey addressed to the parents, accompanied by an oral inspection. Three hundred forty-four schoolchildren were included, 48.84% (168) was 5 years old and 52.91% (182) was male. Of the total, 13.08% (45) performed digital suction, 9.59% (33) pacifier suction and 38.95% (134) other habits. By differentiating the presence of habits with demographic characteristics, it was seen how the presence of digital suction was related to the open bite (p=0.000), the crossbite (p = 0.049), and the orientation of the incisors (p=0.000). ), the shape of the arch (p = 0.000), the cross sectional occlusion (p=0.046) and the sagittal occlusion (p = 0.000). The prevalence of non-nutritive suction habits in these school children was high and related to malocclusion and the appearance of dentomaxillary anomalies, so the education of parents for the prevention of these conditions is fundamental(AU)


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Sucção , Má Oclusão , Mamadeiras , Hábitos
15.
Eur J Paediatr Dent ; 20(4): 330-334, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31850779

RESUMO

SEC III protocol: Early treatment of dentoskeletal Class III malocclusions. The early treatment of dentoskeletal Class III malocclusion is one of the more challenging situations for orthodontists, mainly for the uncertainty of stable long-term results due to the interaction of both environmental and genetic aetiological factors. Several interceptive protocols have been proposed during the past decades. The SEC III protocol includes two occlusal acrylic Splints combined with Class III elastics and chin cup. The protocol was proposed to facilitate Class III dentoskeletal correction by eliminating the intercuspation and the tongue thrust with clockwise mandibular rotation and minimal dentoalveolar compensation. The main difference with all the other appliances is the vertical control, which is crucial in difficult cases such as hyperdivergent Class III malocclusions.


Assuntos
Má Oclusão de Angle Classe III , Má Oclusão , Ortodontia , Cefalometria , Criança , Aparelhos de Tração Extrabucal , Humanos , Mandíbula , Ortodontia Corretiva , Ortodontia Interceptora
16.
Chin J Dent Res ; 22(4): 229-239, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31859283

RESUMO

OBJECTIVE: To evaluate whether the periodontal status was affected in patients with stage IV/grade C periodontitis after orthodontic treatment. METHODS: Twenty-four patients with stage IV/grade C periodontitis who received combined periodontal and orthodontic treatment were included in this study. Probing depth (PD), bleeding on probing (BOP) and percentage of relative bone height (RBH%) were measured and calculated. Parameter changes before and after orthodontic treatment, and their differences between teeth adjacent to extraction sites (TAES) and teeth nonadjacent to extraction sites (TNES) were compared. Three-level analysis was performed to test the influential factors of PD and RBH% reduction after orthodontic treatment. RESULTS: No change of PD, BOP% and RBH% was detected after orthodontic treatment. No difference of PD, BOP% and RBH% was detected between TAES and TNES. BOP negative, excessive horizontal overlap, excessive vertical overlap, crowding, PD at T0 (the last periodontal visit before orthodontic treatment) and RBH% at T0 were positively associated with PD reduction after orthodontic treatment. Being female, excessive horizontal overlap, excessive vertical overlap, crowding, PD at T0 and RBH% at T0 were positively associated with a RBH% reduction. Space was negatively associated with a RBH% reduction. CONCLUSION: Periodontal stability can be obtained for patients with stage IV/grade C periodontitis after orthodontic treatment. Orthodontic treatment with extraction was safe for patients with severe periodontitis, however, attention should be given to TAES.


Assuntos
Má Oclusão , Periodontite , Dente , Feminino , Humanos , Projetos Piloto
17.
J Indian Soc Pedod Prev Dent ; 37(4): 405-408, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31710017

RESUMO

Early correction of anterior crossbite in the primary dentition can encourage proper growth and development of the maxilla and mandible, reducing the need for future orthodontic therapy. Correction is typically initiated after the age of 3 when a fixed or removable appliance can be fabricated and worn. This case study describes an instance of exceptionally early intervention without the use of an appliance. A bottle-fed 10-month-old boy presented with anterior crossbite, and a contributing factor may have been the position of the bottle's nipple during feeding. Correction of the anterior crossbite was achieved in 5 months by changing the bottle position to a counterbalancing angle. Although this technique warrants further investigation, it has the potential to reduce the need for and length of future procedures.


Assuntos
Dentição Mista , Má Oclusão , Humanos , Lactente , Masculino , Mandíbula , Maxila , Dente Decíduo
18.
Community Dent Health ; 36(4): 298-302, 2019 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-31778302

RESUMO

OBJECTIVE: To identify clinical and psychological predictors of OHRQoL. METHODS: Cross-sectional clinical and questionnaire study with 332 adolescents aged 11-14 years. The facial profile was classified through photographs and dental malocclusion was classified by the Dental Health Component of the Index of Orthodontic Treatment Need. The psychosocial variables were assessed by the Aesthetic Component of IOTN, the Orthodontic Aesthetic Subjective Impact Score and the Global Negative Self-Evaluation. OHRQoL was measured using the Oral Health Impact Profile (OHIP-14). The associations were analyzed by multiple logistic regression models. RESULTS: Higher aesthetic concern and low self-esteem were 3.43 and 3.34 times more likely to affect OHRQoL (p⟨0.05), respectively. The facial and dental aspects of malocclusion were unrelated to OHRQoL. CONCLUSIONS: Facial and dental aspects of malocclusion were unrelated to OHRQoL, whereas psychosocial variables such as self-perception of orthodontic treatment need and self-esteem predicted adolescents' oral health related quality of life.


Assuntos
Má Oclusão , Qualidade de Vida , Adolescente , Criança , Estudos Transversais , Humanos , Saúde Bucal , Autoimagem , Inquéritos e Questionários
19.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 37(5): 527-532, 2019 Oct 01.
Artigo em Chinês | MEDLINE | ID: mdl-31721502

RESUMO

Centric relation (CR) is one of the core research contents in orthodontics, prosthodontics, and gnathology, acting as an important physiological factor in reconstructing the occlusion and adjusting the occlusal relationship. For over a century, CR is still a controversial subject in dentistry. CR has been redefined for several times, and recently, its application has been widened in orthodontics, including orthodontic diagnosis, clinical examination and analysis, and treatment goals. The purpose of this article is to review the definition of CR, its relationship with malocclusion, and the application of this relationship in orthodontic treatment.


Assuntos
Oclusão Dentária Central , Má Oclusão , Relação Central , Assistência Odontológica , Humanos , Ortodontia Corretiva
20.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 37(5): 541-546, 2019 Oct 01.
Artigo em Chinês | MEDLINE | ID: mdl-31721505

RESUMO

OBJECTIVE: We provided baseline data for oral public health through epidemiological surveys to investigate the prevalence of malocclusion and orthodontic treatment proportion in 12- to 14-year-old adolescents in Jiangxi province, China. METHODS: Multi-stage random cluster sampling was used. A total of 5 387 12- to 14-year-old adolescents were examined by three professional dentists according to Angle's classification of malocclusion. The subjects were recruited from 30 secondary schools in five counties in Jiangxi Province. Results were statistically analyzed by SPSS19.0. RESULTS: The prevalence of malocclusion was 79.67% among adolescents aged 12-14 years in Jiangxi province. The composition ratios of ClassⅠ, Class Ⅱ Division 1, Class Ⅱ Division 2, and Class Ⅲ malocclusion were 30.96%, 16.36%, 12.78%, and 19.13% respectively. ClassⅠmalocclusion had the highest composition ratio, and the most common clinical manifestation of malocclusion was dentition crowding with a prevalence of 91.30%. The prevalence rate of malocclusion was higher in boys than in girls at 81.16% and 78.21%, respectively (P<0.05). This condition had different prevalence rates in Nanchang, Yichun, Jiujiang, Shangrao, and Ganzhou (P<0.05) with the highest in Nanchang and lowest in Ganzhou. Malocclusion was related to caries, and its prevalence rate was higher in patients with caries than in those without caries (P<0.05). The orthodontic rate of malocclusion was 2.63%, and the value was higher for girls than that for boys (P<0.05). The rate of orthodontic in urban areas was higher than that in rural areas (P<0.05). CONCLUSIONS: Compared with local and international findings on malocclusion of adolescents, high prevalence and low orthodontic rate were found in Jiangxi province. Strengthening the combination of prevention and treatment is important for the physical and mental health of adolescents. We should actively conduct oral health education, popularize the knowledge of malocclusion, and actively treat caries.


Assuntos
Cárie Dentária , Má Oclusão , Adolescente , Criança , China , Estudos Epidemiológicos , Feminino , Humanos , Masculino , Prevalência
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA