Asymmetric extractions used in the t reatment of patients with asymmetries

Rebellato, Joe

doi:10.1016/s1073-8746(98)80019-4

Cited by 32 publications

(36 citation statements)

References 12 publications

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“…Atypical extractions can also benefit pre-surgery orthodontic preparation. 16 Caution must be taken when planning orthodontic treatments, as there are cases when transversal asymmetry of dental arches is not corrected after orthodontic treatment, and orthodontic cases originate dental arches that are larger than those without extraction. 17 There is great ethnic diversity among the Brazilian population, raising questions on the applicability of standards and measurements previously established in more homogenous populations.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the dental arch asymmetry in natural normal occlusion and Class II malocclusion individuals

Scanavini¹,

Paranhos

Torres

et al. 2012

Dental Press J. Orthod.

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OBJECTIVE: To verify the presence and degree of asymmetry of dental arches in Brazilian individuals with natural normal occlusion and Class II, Divisions 1 and 2 malocclusions. METHODS: The study evaluated the symmetry of the maxillary and mandibular dental arches of 180 pairs of dental casts, divided into: Group I = 60 pairs of natural normal occlusion individuals; Group II = 60 pairs of Class II, Division 1 malocclusion individuals; and Group III = 60 pairs of Class II, Division 2 malocclusion individuals. A device was used to measure dental midline deviation and the canine tip in the dental arches (in degrees). It was also verified the distance of the upper canines from the palatal suture, intercanine distance, and anteroposterior upper and lower first molar position. RESULTS: Dental arches of individuals from all groups presented asymmetry, regardless of the presence of malocclusion. Group I showed a lower asymmetry degree in relation to Groups II and III. The asymmetry in Groups II and III was similar. CONCLUSION: The dental arches of individuals with natural normal occlusion and with Class II, Division 1 and Division 2 malocclusions showed asymmetry. The asymmetry degree was higher in the mandibular dental arches than in the maxillary dental arches in all 3 evaluated groups

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Section: Introductionmentioning

confidence: 99%

Evaluation of the dental arch asymmetry in natural normal occlusion and Class II malocclusion individuals

Scanavini¹,

Paranhos

Torres

et al. 2012

Dental Press J. Orthod.

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show abstract

“…On the other hand, extraction of two upper premolars and only one lower premolar (opposite to the midline deviation) results in asymmetrical molar relationship at the end of the treatment (Class I and Class II). [10][11][12][13]21,27 Thus, in these situations it would be easier to achieve midline correction and obtain better vertical control. Treatment considering three premolars extraction protocol in Class II subdivision cases requires less treatment time, providing more satisfactory results.…”

Section: Literature Review and Discussionmentioning

confidence: 99%

“…3,18 As stated before, asymmetric extractions could result in asymmetrical position of the molars. The final molar relationship could be Class II or III only in one side or in both sides 21,30 (Fig 3).…”

Section: Literature Review and Discussionmentioning

confidence: 99%

Asymmetric extractions in orthodontics

Melgaço

Araújo

2012

Dental Press J. Orthod.

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INTRODUCTION: Extraction decisions are extremely important in during treatment planning. In addition to the extraction decision orthodontists have to choose what tooth should be extracted for the best solution of the problem and the esthetic/functional benefit of the patient. OBJECTIVE: This article aims at reviewing the literature relating the advantages, disadvantages and clinical implications of asymmetric extractions to orthodontics. METHODS: Keywords were selected in English and Portuguese and the EndNote 9 program was used for data base search in PubMed, Web of Science (WSc) and LILACS. The selected articles were case reports, original articles and prospective or retrospective case-control studies concerning asymmetrical extractions of permanent teeth for the treatment of malocclusions. CONCLUSION: According to the literature reviewed asymmetric extractions can make some specific treatment mechanics easier. Cases finished with first permanent molars in Class II or III relationship in one or both sides seem not to cause esthetic or functional problems. However, diagnosis knowledge and mechanics control are essential for treatment success

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“…A coordenação das linhas médias dentárias denota grande importância no plano de tratamento Uma variação desse padrão de extrações, quando se têm as mesmas características anteriores consiste em extrair também um segundo pré-molar inferior do lado da Classe II, estabelecendo-se uma ancoragem diferencial entre os caninos direito e esquerdo e assim, obtendo a relação de Classe I desses dentes 79 . Desta forma, fecham-se todos os espaços da extração no lado da Classe II pela retração completa dos dentes anteriores superiores e completa mesialização do segmento póstero-inferior para o espaço da extração 35,36,79,138,174 . Apesar deste segundo esquema de extrações também produzir resultados satisfatórios, requer-se uma maior utilização de elásticos intermaxilares para ajudar na obtenção de uma relação de Classe I, de molar, deste lado.…”

Section: -Distribuição Dos Tipos De Classe II Subdivisãounclassified

“…Apesar deste segundo esquema de extrações também produzir resultados satisfatórios, requer-se uma maior utilização de elásticos intermaxilares para ajudar na obtenção de uma relação de Classe I, de molar, deste lado. Há uma dificuldade na correção do desvio da linha média, uma vez que, para o fechamento do espaço da extração do pré-molar do lado da Classe II, a linha média deslocar-se-á ainda mais para este lado 79,138 . Pode-se utilizar, nestes casos, um arco retangular no arco superior e um arco redondo no inferior, com amarrações distais associados a um elástico de Classe I I e um elástico diagonal anterior, para ajudar na correção da linha média 59,79,97 .…”

Section: -Distribuição Dos Tipos De Classe II Subdivisãounclassified

Distribuição dos tipos de Classe II, subdivisão e avaliação de suas assimetrias

Lima¹

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Asymmetric extractions used in the t reatment of patients with asymmetries

Cited by 32 publications

References 12 publications

Evaluation of the dental arch asymmetry in natural normal occlusion and Class II malocclusion individuals

Evaluation of the dental arch asymmetry in natural normal occlusion and Class II malocclusion individuals

Asymmetric extractions in orthodontics

Distribuição dos tipos de Classe II, subdivisão e avaliação de suas assimetrias

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