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Prevalência de padrão facial e má oclusão em populações de duas escolas diferentes de ensino fundamental; Prevalence of the facial pattern and malocclusion in population of two different elementary schools

Siécola, Gustavo Silva
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 21/03/2007 PT
Relevância na Pesquisa
46.36%
A avaliação facial no contexto ortodôntico frente ao diagnóstico, a elaboração de planos de tratamento e a avaliação de prognóstico torna-se indispensável. O entendimento do padrão de crescimento facial representa ser possível propor as metas terapêuticas aceitáveis para cada indivíduo. O presente trabalho objetivou identificar a prevalência de determinados padrões faciais e das más oclusões e posteriormente correlacioná-los entre si, em duas escolas distintas, uma escola particular e uma escola pública, na cidade de Bauru - SP. Os sujeitos da amostra foram selecionados por conveniência levando-se em consideração o critério de inclusão para o estudo, cujos indivíduos não poderiam ter sido ou estar sendo submetido a tratamento ortodôntico. Para tanto, foi realizada uma entrevista/anamnese com os alunos das 2 escolas de Ensino Fundamental, que cursavam de 1ª a 4ª série. Após selecionados, tais sujeitos foram divididos em dois grupos, de acordo com a escola que cursavam, e fotografados nas vistas extrabucais e intrabucais, sendo três e cinco fotos, respectivamente, e estas fotografias avaliadas por três examinadores. Os sujeitos foram determinados em tipos de padrão de crescimento facial segundo a classificação proposta por Capelozza (2004)...

Eletromiografia do músculo masseter relacionada a medidas cefalométricas em indivíduos com maloclusão dental classe III de Angle; Masseter muscle electromyography correlated with cefalometric mesures in Angle's classe III dental malocclusion.

Gomes, Antonio Carlos Pereira
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 17/05/2006 PT
Relevância na Pesquisa
66.48%
Embriologicamente, o tecido ósseo surge posteriormente aos músculos. A musculatura temporomandibular e facial apresentam-se definidas quando da ossificação da face e crânio, com os ossos se desenvolvendo dentro de um envelope de músculo e fascia. Quando contrações ativas se iniciam em um músculo, ele passa a exercer contínuo efeito sobre os ossos aos quais pertencem sua origem e inserção. O tecido ósseo é tido como um dos mais plásticos e responde prontamente às forças e tensões geradas pelos músculos. Evidenciase que os músculos, desde a fase pré-natal, desempenham papel na conformação dos ossos, e continuam a direcionar o crescimento pelo efeito de suas funções. Oito pacientes (4? e 4?) com idade entre 7 e 12 anos, com maloclusão dental classe III de Angle, foram submetidos a registros eletromiográficos do músculo masseter, subdividido em três regiões: superior, média e inferior, empregando-se o eletromiógrafo K6-I/EMG Eight Channel Surface Electromyograph (Myo-tronics Co., Seatle, WA, EUA), em 17 condições clínicas, e à análise cefalométrica através do programa Radiocef (RadioMemory, Floresta, BH, Brasil), de 15 medidas angulares e lineares. Os dados obtidos foram submetidos ao teste de correlação de Spearman...

Estudo observacional de alterações dentárias em canídeos de raça Chihuahua

Spínola, Sílvia Góis
Fonte: Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária Publicador: Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária
Tipo: Dissertação de Mestrado
Publicado em 25/07/2013 POR
Relevância na Pesquisa
36.45%
Dissertação de Mestrado Integrado em Medicina Veterinária; A raça Chihuahua pelas suas características anatómicas de crânio únicas, poderá possuir uma maior predisposição para a ocorrência de alterações dentárias. Tendo em consideração a grande longevidade desta raça, percebe-se o impacto que estas alterações podem ter na sua qualidade de vida e na sua saúde. O objetivo deste trabalho foi perceber quais as alterações mais frequentes e se a existência destas alterações obedece a um padrão entre indivíduos da mesma família. A população estudada foi constituída por 42 indivíduos, com idades compreendidas entre os 8 meses e os 4 anos e 8 meses de idade, em que 67% (28/42) têm algum grau de parentesco entre si. Foi observada a cavidade oral e fez-se o registo das alterações dentárias e oclusais. Avaliou-se a presença de má-oclusão segundo a classificação de Angle (má-oclusão Classe I, Classe II ou Classe III) e classificou-se a doença periodontal em ligeira, moderada ou grave. Das alterações observadas, verificou-se que 67% dos indivíduos (28/42) apresentam máoclusão Classe I, 19% (8/42) má-oclusão Classe II e 14% (6/42) má-oclusão Classe III. Quanto à doença periodontal...

Correction of midface deficiency using intra-oral distraction device

Menon, Suresh; Sinha, Ramen; Manerikar, Ravi; Roy Chowdhury, S. K.
Fonte: Springer-Verlag Publicador: Springer-Verlag
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
46.01%
A wide variety of disease processes produce alteration of midfacial skeletal growth, resulting in moderate-to-severe midface deficiency presenting as retrusion associated with Angle’s class III malocclusion. Most cases of midface deficiency are seen in patients of cleft lip/palate. The surgical procedure to correct the clefts, undertaken over a long period of time from infancy to the teens tends to take its toll on the soft tissues over the midface. The scarring that is a feature in these conditions results in hampering of normal growth of the midface causing the deformity. Conventional procedures to correct the deformity by surgical advancement have been less than satisfactory in terms of success. This is where the concept of multidimensional growth using distraction proved useful. Today distraction has proved to be a versatile tool in the correction of midface deficiencies due to its various advantages. Six patients of cleft lip/palate were taken up for advancement of the hypoplastic midface using intra-oral distractors with successful and stable results.

Prevalence of Malocclusion among 6 to 10 Year old Nalgonda School Children

Reddy, E Rajendra; Manjula, M; Sreelakshmi, N; Rani, S Thabitha; Aduri, Rajesh; Patil, B Dharamraj
Fonte: International Society of Preventive and Community Dentistry Publicador: International Society of Preventive and Community Dentistry
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
36.62%
Background: To evaluate the prevalence of malocclusion among 6 to 10 year old children of Nalgonda District. Materials & Methods: A total of 3000 children were examined, out of which 2135 children (1009 boys and 1126 girls) who fulfilled the inclusion criteria were included. The selected sample was examined for Class I, Class II, Class III molar relationship, lower anterior crowding, cross bite (anterior and posterior), open bite, and pseudo class III [edge to edge bite] discrepancies after obtaining the written consent from the concerned school authorities. The collected data was tabulated and statistically analysed using chi-square test. Results: Among the selected sample, 648 (30.35%) children had minor tooth alignment discrepancies. Angle’s Class I molar relation with and without minor discrepancies was observed in 78.6%, Class II in 13.9%, Class III in 7.8% of the subjects surveyed. Lower anterior crowding in 11.8%, anterior cross bite in 4.5%, posterior cross bite in 3.75%, openbite in 3% and Pseudo class III [edge to edge] in 5.97% was noticed among the studied population. There was no statistical significant difference observed gender wise. Conclusion: In the current study, 52% of the studied population had malocclusion with a higher prevalence of Angle’s Class I molar relation with lower anterior crowding. How to cite this article: Reddy ER...

Prevalence of Malocclusion in Jaipur, India

Trehan, Mridula; Chugh, Vinay K; Sharma, Sunil
Fonte: Jaypee Brothers Medical Publishers Publicador: Jaypee Brothers Medical Publishers
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
46.44%
A study was undertaken to determine the prevalence of malocclusion in Jaipur city, India. A total of 700 subjects, in the age group of 16-26 years were divided into five groups of normal occlusion, Angle’s Class I, Class II Div 1, Class II Div 2 and Class III malocclusion. The results revealed that the prevalence of malocclusion was 66.3%, with the majority of them having Class I malocclusion (57.9%), while the prevalence of Class III malocclusion was found to be the least (1.4%). There was no statistically significant gender difference among the subjects studied.

Skeletal Malocclusion: A Developmental Disorder With a Life-Long Morbidity

Joshi, Nishitha; Hamdan, Ahmad M.; Fakhouri, Walid D.
Fonte: Elmer Press Publicador: Elmer Press
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
26.32%
The likelihood of birth defects in orofacial tissues is high due to the structural and developmental complexity of the face and the susceptibility to intrinsic and extrinsic perturbations. Skeletal malocclusion is caused by the distortion of the proper mandibular and/or maxillary growth during fetal development. Patients with skeletal malocclusion may suffer from dental deformities, bruxism, teeth crowding, trismus, mastication difficulties, breathing obstruction and digestion disturbance if the problem is left untreated. In this review, we focused on skeletal malocclusion that affects 27.9% of the US population with different severity levels. We summarized the prevalence of class I, II and III of malocclusion in different ethnic groups and discussed the most frequent medical disorders associated with skeletal malocclusion. Dental anomalies that lead to malocclusion such as tooth agenesis, crowding, missing teeth and abnormal tooth size are not addressed in this review. We propose a modified version of malocclusion classification for research purposes to exhibit a clear distinction between skeletal vs. dental malocclusion in comparison to Angle’s classification. In addition, we performed a cross-sectional analysis on orthodontic (malocclusion) data through the BigMouth Dental Data Repository to calculate potential association between malocclusion with other medical conditions. In conclusion...

Prevalence of malocclusions in the 13-20-year-old categories of football athletes

SOUZA, Luci Alves de; ELMADJIAN, Thais Regina; DIAS, Reinaldo Brito e; COTO, Neide Pena
Fonte: Sociedade Brasileira de Pesquisa Odontológica Publicador: Sociedade Brasileira de Pesquisa Odontológica
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.24%
The dentist can offer athletes improvement in their physical performance through the maintenance of oral health, preventing and treating any and all changes in the stomatognathic system, such as dental malocclusions, that compromise the athletes' performance. The objective of this study is to research the presence of dental malocclusions in athletes of the category between 13 and 20 years of age, from the São Paulo Football Club. 84 athletes participated in this study, dealing with the following topics: molar relation (Angle's classification); presence of overbite; underbite; overcrowding; abnormal spacing; open bite; and anterior, posterior, bilateral and unilateral crossbite; midline deviation and facial type (mesofacial, brachyfacial and dolichofacial). Only one table was made, showing percentages. In regard to Angle's molar relation, 89% are in Class I, 8% in Class II, 3% Class III, 9% of the athletes had overbite, 4% had underbite, 13% had overcrowding and 21% had abnormal spacing. In regard to the bite, 11% presented anterior open bite. In regard to crossbite, 7% presented unilateral crossbite on the right side and 2% on the left side; 5% presented posterior crossbite and 4% anterior crossbite. In regard to midline deviations...

Caracteristicas morfologicas, dimensionais e posicionais da sinfise mandibular humana, sob enfoque radiocefalometrico

Renesio Armindo Grehs
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em //1979 PT
Relevância na Pesquisa
26.15%
A sínfise mandibular humana foi avaliada telerradio graficamente, em alguns de seus aspectos morfológicos, dimensionais e posicionais. Tornou-se uma amostra de 144 indivíduos caucasóides brasileiros, igualmente distribuídos segundo o sexo, nascidos na região de Piracicaba, SP, e com idades compreendidas entre 12 e 18 anos inclusive. A amostra foi dividida em quatro grupos (Grupo 1 - Oclusão normal; Grupo 2 - Classe II , divisão 1 ; Grupo 3 - Classe II , divisão 2 e Grupo 4 - Classe III, segundo Angle),conservando-se igual distribuição segundo o sexo. Para seleção dos indivíduos do Grupo 1, além dos critérios de Angle, levou-se em conta harmonia do perfil facial segundo HOLDAWAY (1977). Como critério auxiliar para caracterização dos grupos de maloclusão, avaliou-se também o valor do ângulo ANB. Verificou-se no trabalho:1) Inclinação de sínfise, observada mediante o angulo XY.GoMe, isto é, relacionando-se o eixo longitudinal da sínfise com o plano mandibular;2) Ângulo estabelecido entre o longo eixo do incisivo inferior e o eixo longitudinal da sínfise (ângulo T.XY);3) Correlação entre ângulo FMA e angulo de inclinação de sínfise;4) Correlação entre comprimento do corpo mandibular (Go-Gn) e largura de sínfise (L);5) Altura de sínfise (A);6) Largura de sínfise (L); 7) Determinação do índice sinfisiano (IS); 8} Distancia entre o ápice radicular do incisivo inferior e o eixo longitudinal da sínfise (í-XY}; e 9) flrea da imagem telerradiografica da sínfise (planimetria). Os dados foram submetidos a análise estatística...

Orthodontic-surgical treatment of bilateral maxillary canine impaction

Sumitra,
Fonte: Medknow Publications & Media Pvt Ltd Publicador: Medknow Publications & Media Pvt Ltd
Tipo: Artigo de Revista Científica
Publicado em //2012 EN
Relevância na Pesquisa
36.06%
A 13-year-old female patient reported with the chief complaint of irregular front teeth. She had a skeletal Class III and Angle's Class I malocclusion with hyperdivergent growth pattern and bilateral impaction of maxillary canines. Surgical exposure of the impacted teeth and orthodontic alignment was planned. The surgical exposure was done by a minimally invasive modified window technique. Orthodontic treatment of impacted canines without causing significant morbidity to the adjacent teeth and periodontium is a challenge. The bilaterally impacted maxillary canines were successfully aligned and leveled. The depth of the gingival sulcus and clinical crown heights of disimpacted teeth were normal post-treatment and after 1 year of retention.

Transparent aligners: An invisible approach to correct mild skeletal class III malocclusion

Yezdani, A. Arif
Fonte: Medknow Publications & Media Pvt Ltd Publicador: Medknow Publications & Media Pvt Ltd
Tipo: Artigo de Revista Científica
Publicado em /04/2015 EN
Relevância na Pesquisa
76.43%
This case report highlights the treatment of a mild skeletal class III malocclusion with an invisible thermoplastic retainer. A 15-year-old female patient presented with a mild skeletal class III malocclusion with a retrognathic maxilla, orthognathic mandible, a low mandibular plane angle with Angle's class III malocclusion with maxillary lateral incisors in anterior cross-bite with crowding of maxillary anteriors, imbricated and rotated mandibular incisors and deep bite. Accurate upper and lower impressions and a bite registration were taken with polyvinyl siloxane rubber base impression material. This was then sent to the lab for the processing of a series of ClearPath aligners. The ClearPath virtual set-up sent from the lab provided the treatment plan and interproximal reduction estimation complete with posttreatment results. This enabled the clinician to actively participate in the treatment plan and provide the necessary suggestions. The ClearPath three-dimensional aligner was found to have effectively corrected the anterior cross-bite and crowding of the maxillary anteriors.

A Study of Bite Force and Various Variables in Children Segregated by Angle's Classification

Singh, Sarabjeet; Sandhu, Navreet; Kashyap, Rita
Fonte: Jaypee Brothers Medical Publishers Publicador: Jaypee Brothers Medical Publishers
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
46.09%
The stomatographic system has been studied by several researchers, yet it is still unclear, weather a genetically determined facial morphology decides the strength of masticatory muscles,1 or weather a strong musculature influences the form of the face. This formed the basis of present study to relate muscle activity with various malocclusions. Thus, 60 samples of younger age group were divided according to Angle classification and maximum bite force was recorded among the groups. Newly designed bite force recorder was used for recording bite force at molar and at incisal region. Influence of various independent variables like gender, overjet and overbite of the subjects on the bite force was also checked. It was concluded that maximum bite force at intercuspal position (molar) and anterior bite position (incisal) were not significantly different between normal, class I, class II div 1 and class III malocclusion groups. There was no significant correlation between incisal bite force and overjet or overbite, but there was a highly significant difference (p < 0.001) between the males and females for maximum bite force at intercuspal position, with males biting harder than the females.

The Need for Orthodontic Treatment among Vietnamese School Children and Young Adults

Nguyen, Son Minh; Nguyen, Minh Khac; Saag, Mare; Jagomagi, Triin
Fonte: Hindawi Publishing Corporation Publicador: Hindawi Publishing Corporation
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
36.13%
Objective. The aim of this study was to evaluate the need for orthodontic treatment among 12-year-old school children and 18-year-olds from Da Nang, Vietnam. Basic Research Design. A random representative sample of 200 12-year-old children from primary schools in Da Nang city was gathered. In addition, 200 18-year-old students were randomly selected from among the 4000 students studying at Da Nang University of Medical Technology and Pharmacy, Vietnam. All the subjects were evaluated according to Angle's molar relationship, the presence of malocclusion, and the components of the Index of Orthodontic Treatment Need (Dental Health Component, DHC, and Aesthetic Component, AC). Results. The DHC of index of orthodontic treatment need (IOTN) for 12-year-olds was in 60% of cases no or little, in 21% of cases moderate, and in 19% of cases definitive, while the prevalence of moderate and definitive need for treatment among the 18-year-olds was 24% and 30.5%, respectively. The prevalence of class III malocclusion, contact point displacement, and crossbite was higher in 18-year-olds than among the 12-year-olds, while the prevalence of increased overjet and increased overbite had decreased in 18-year-olds compared to the group of 12-year-olds. Conclusions. There is a strong need for orthodontic treatment in Vietnam's population. The need for orthodontic treatment was determined by contact point displacement...

Malocclusion Pattern (Angle's) in Mauritian Orthodontic Patients

Durgesh, B. H.; Prakash, Prashanth; Ramakrishnaiah, Ravikumar; Subashchandra Phulari, Basavaraj; Al Kheraif, Abdul Aziz A.
Fonte: International Scholarly Research Network Publicador: International Scholarly Research Network
Tipo: Artigo de Revista Científica
Publicado em 28/03/2012 EN
Relevância na Pesquisa
46.4%
The aim of the study was to assess the pattern of malocclusion in different ethnic group of Mauritian population visiting the Orthodontic Department at Mauras College of Dentistry and Hospital, Republic of Mauritius. The study population comprised of 624 patients who visited the orthodontic department during 2010. The clinical examination was conducted by a well-calibrated orthodontist. The data were recorded in the case sheets and was analyzed for presence of angles class I, class II, and class III malocclusion in both male and female patients of Asian, African, Caucasian, and Chinese ethnicity aged 5–55 years. Malocclusion was found to be high in females compared to males. 414 patients (150 male + 264 female) presented with class I, 182 patients (52 male + 130 female) presented with class II, and 28 patients (12 male + 16 female) presented with class III. Asian ethnic group were more affected and patient seeking orthodontic treatment was high in 11–15 years age group.

Surgical-orthodontic treatment of Class III malocclusion with agenesis of lateral incisor and unerupted canine

Vieira,Bruno Boaventura; Sanguino,Ana Carolina Meng; Moreira,Marilia Rodrigues; Morizono,Elizabeth Norie; Matsumoto,Mírian Aiko Nakane
Fonte: Dental Press International Publicador: Dental Press International
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2013 EN
Relevância na Pesquisa
96.44%
INTRODUCTION: Orthodontic-surgical treatment was performed in patient with skeletal Class III malocclusion due to exceeding mandibular growth. Patient also presented upper and lower dental protrusion, overjet of -3.0 mm, overbite of -1.0 mm, congenital absence of tooth #22, teeth #13 and supernumerary impaction, tooth #12 with conoid shape and partly erupted in supraversion, prolonged retention of tooth #53, tendency to vertical growth of the face and facial asymmetry. The discrepancy on the upper arch was -2.0 mm and -5.0 mm on the lower arch. METHODS: The pre-surgical orthodontic treatment was performed with extractions of the teeth #35 and #45. On the upper arch, teeth #53, #12 and supernumerary were extracted to accomplish the traction of the impacted canine. The spaces of the lower extractions were closed with mesialization of posterior segment. After aligning and leveling the teeth, extractions spaces closure and correct positioning of teeth on the bone bases, the correct intercuspation of the dental arch, with molars and canines in Angle's Class I, coincident midline, normal overjet and overbite and ideal torques, were evaluated through study models. The patient was submitted to orthognathic surgery and then the post-surgical orthodontic treatment was finished. RESULTS: The Class III malocclusion was treated establishing occlusal and facial normal standards.

Conservative compensatory Angle Class III malocclusion treatment

Sobral,Marcio Costa; Habib,Fernando Antônio de Lima; Matzenbacher,Liz
Fonte: Dental Press International Publicador: Dental Press International
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2012 EN
Relevância na Pesquisa
116.57%
INTRODUCTION: Angle's Class III malocclusion is a dental discrepancy in a sagittal view that may appear or not with an important skeletal discrepancy. Facial esthetics may be affected by this skeletal discrepancy and it is one of the most common complaints of patients who seek orthodontic treatment. Class III treatment, in adults, may be done by compensatory tooth movement, in simple cases, or through an association between orthodontics and orthognathic surgery, in more severe cases. OBJECTIVE: This article describes a non-extraction compensatory Class III treatment case, applying the Tweed-Merrifield mechanical principles with headgear (J-Hook) in the mandibular arch. This case was presented at the V Brazilian Association of Orthodontics and Dentofacial Orthopedics (ABOR) Meeting, it was evaluated by members of Brazilian Board of Orthodontics and obtained third place in the general classification.

Prevalence of malocclusions in the 13-20-year-old categories of football athletes

Souza,Luci Alves de; Elmadjian,Thais Regina; Dias,Reinaldo Brito e; Coto,Neide Pena
Fonte: Sociedade Brasileira de Pesquisa Odontológica - SBPqO Publicador: Sociedade Brasileira de Pesquisa Odontológica - SBPqO
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2011 EN
Relevância na Pesquisa
36.24%
The dentist can offer athletes improvement in their physical performance through the maintenance of oral health, preventing and treating any and all changes in the stomatognathic system, such as dental malocclusions, that compromise the athletes' performance. The objective of this study is to research the presence of dental malocclusions in athletes of the category between 13 and 20 years of age, from the São Paulo Football Club. 84 athletes participated in this study, dealing with the following topics: molar relation (Angle's classification); presence of overbite; underbite; overcrowding; abnormal spacing; open bite; and anterior, posterior, bilateral and unilateral crossbite; midline deviation and facial type (mesofacial, brachyfacial and dolichofacial). Only one table was made, showing percentages. In regard to Angle's molar relation, 89% are in Class I, 8% in Class II, 3% Class III, 9% of the athletes had overbite, 4% had underbite, 13% had overcrowding and 21% had abnormal spacing. In regard to the bite, 11% presented anterior open bite. In regard to crossbite, 7% presented unilateral crossbite on the right side and 2% on the left side; 5% presented posterior crossbite and 4% anterior crossbite. In regard to midline deviations...

Malocclusion in Down syndrome - a review

Rao,D; Hegde,S; Naik,S; Shetty,P
Fonte: South African Dental Journal Publicador: South African Dental Journal
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2015 EN
Relevância na Pesquisa
56.19%
Down syndrome or Trisomy 21 is a genetic disorder, which results in intellectual impairment, typical craniofacial features and a wide spectrum of phenotypic abnormalities. Characteristic features of midface hypoplasia in Down syndrome include smaller maxilla, presence of 'stair' palate and severe malocclusion. Generally, the most frequent malocclusions stem from variations in vertical and transverse occlusions, identified mainly as Angle's Class III molar relations, anterior open bite, anteroposterior crossbite, and proclination of the anterior teeth. By familiarising themselves with these features, general dental professionals, paediatric dentists and orthodontists can plan a varied combination of treatment modalities to prevent and correct occlusal anomalies.