ABSTRACT
O sistema Invisalign é um método de movimentação ortodôntica baseado em uma tecnologia 3D, que consiste em uma alternativa para pacientes que almejam a estética e o restabelecimento funcional. Nesse contexto, objetivou-se descrever os efeitos do tratamento com Invisalign, o grau de motivação dos pacientes e a relação entre outras mecânicas ortodônticas. Pesquisaram-se as palavras-chaves Invisalign, treatment outcomes, esthetics e malocclusion no Pubmed, obtendo-se 93 resultados. Foram selecionados 16 artigos entre 2004 e 2014 com base em títulos e resumos. Destes, 12 consistiam em estudos clínicos e quatro em relatos de casos. Um estudo mostrou que a experiência profissional pode estar relacionada ao índice de sucesso do tratamento com alinhadores. Em relação ao ClinCheck, dois estudos demonstraram uma maior precisão durante a constrição lingual ou rotação de caninos. Dois estudos constataram que procedimentos, como desgaste interproximal e protrusão, contribuíram para melhores finalizações dos tratamentos. Comparando as técnicas ortodônticas, três estudos demonstraram que o sistema Invisalign obteve bons resultados no nivelamento dos arcos, porém, o tratamento convencional ou autoligado proporciona maiores benefícios para a correção da má-oclusão e para uma maior estabilidade no período de pós-tratamento. Dois estudos destacaram que o aparelho lingual e o aparelho fixo proporcionaram níveis mais elevados de dor, quando comparado aos alinhadores. Quatro relatos de casos evidenciaram que a utilização de acessórios e a realização de redução interproximal podem favorecer para correção de apinhamento, sobremordida e sobressaliência. Em suma, os estudos mostraram que o sistema Invisalign possui muitas vantagens, entretanto, é necessário que a técnica seja indicada corretamente...
Invisalign is a method of orthodontic movement based on a 3D technology that is an alternative for patients who aims the aesthetic and functional recovery. In this context, the objective was to describe the effects of treatment with Invisalign, the degree of motivation of patients and the relationship between other orthodontic mechanics. The study was carried keywords Invisalign, treatment outcomes, aesthetics, malocclusion in Pubmed, obtaining 93 results. We selected 16 articles (2004-2014) based on titles and abstracts. These, twelve consisted in clinical studies and four in case reports. One study showed that professional experience may be related to the success rate of treatment with aligners. Regarding Clincheck, two studies demonstrated greater accuracy during lingual constriction or rotation of canines. Two studies found that procedures such as interproximal wear and protrusion, lead to better treatments submissions. Comparing orthodontic techniques, three studies demonstrated that the Invisalign system obtained good results in leveling of the arches, but the conventional treatment or self-ligated provide greater benefits for the correction of malocclusion and greater stability in the post-treatment. Two studies highlighted that the lingual braces and fixed appliance provided higher levels of pain, compared to aligners. Four case reports showed that the use of accessories and performing interproximal reduction may favor to correct crowding, overbite and overjet. In short, studies have shown that the Invisalign system has many advantages, however it is necessary that the technique is correctly indicated...
Subject(s)
Humans , Esthetics, Dental , Malocclusion , Orthodontics, Corrective/trends , Treatment Outcome , Orthodontic Appliances/trends , Tooth Movement TechniquesABSTRACT
AIM: To evaluate changes in pharyngeal airway space (nasopharynx and oropharynx), soft palate and lingual vallecula after maxillary advancement surgery and maxillary advancement and mandibular setback surgery (bimaxillary surgery). METHODS: Twenty Class III adult patients were included in the study. Ten patients were treated with maxillary advancement and ten with bimaxillary surgery (maxillary advancement and mandibular setback). Cephalometric landmark measurements were recorded at 3 different time intervals: pre-surgical, post-surgical and six months after surgery. Data collected were subjected to one-way ANOVA (p<0.05). RESULTS: Nasopharyngeal airway space increased after maxillary advancement and decreased after bimaxillary surgery. There was increase in oropharyngeal dimensions in the region around the uvula and loss of space for lingual vallecula, while in Group 2 there was diminished space for both uvula and vallecula. The uvula and vallecula were moved forward in Group 1, whereas these structures were moved in the posterior direction in Group 2. CONCLUSIONS: After maxillary advancement surgery there was an increased in space in the nasopharyngeal region. The oropharyngeal region related to the uvula presented an increase in space, whereas there was a reduction in relation to the lingual vallecula. The uvula and lingual vallecula were moved forward. Bimaxillary surgery promoted a reduction in the nasopharyngeal and oropharyngeal regions as regards both the uvula and lingual vallecula. The uvula and lingual vallecula were moved in the posterior direction...