Correção do longo eixo de canino superior ectópico com mini-implante / Correction of long canine higher axis ectopic with mini-implant – case report

Erupção ectópica é descrita como a alteração no trajeto de erupção normal de um germe dentário. De acordo com cada caso clínico, é de responsabilidade do ortodontista analisar e abordar a melhor alternativa terapêutica. Como primeira opção, na maioria dos casos, o reposicionamento adequado do elemento dentário na arcada é realizado com mecânicas tradicionais, mas, quando estas não atingem resultados esperados, outros planos de tratamentos são realizados. Dentre esses, encontra-se a ancoragem esquelética realizada através dos mini-implantes que aumentam a previsibilidade do tratamento. O objetivo deste estudo foi apresentar um caso clínico de correção do longo eixo de canino em posição ectópica, pelo emprego de um mini-implante, proporcionando um correto alinhamento dentário (paralelismos das raízes) e espaço protético adequado para posterior reabilitação estética. Neste caso clínico, será demonstrado o movimento de corpo do canino através da ação de uma mola confeccionada de fio de TMA apoiada no mini-implante instalado na linha média...

Ectopic eruption is reported as the change in the path of the normal eruption of a tooth germ. According to each clinical case, it is the responsibility of the orthodontist, analyze and address the best therapeutic alternative. As a first choice, in most cases, adequate repositioning the tooth in the arch is realized with traditional mechanics. When these fail to achieve expected results, plans for further treatments are performed. Among these, is performed by skeletal anchorage of mini-implants. Increasing the predictability of treatment. The purpose of this article was to present a case of the long axis of canine correction in ectopic position, by the use of a mini-implants, providing a dental alignment (parallels the roots) and prosthetic space suitable for further aesthetic rehabilitation. In this clinical case it is shown canine body movement through the action of a spring made of wire TMA supported in mini-implant installed in the midline...

Impact of light and sugarefree beverages on dentin erosion e an in vitro study

AIM: To compare the erosive effect of different light and sugar free beverages in relation to their regular version, on dentin. MATERIALS AND METHODS: Bovine root dentin samples were randomized into 9 different types of drinks each n=12: CocaZ cola®, Light CocaZcola®, CocaZcola® Zero, Guaraná Antartica®, Guaraná Antartica® Zero, Sprite®, Sprite® Zero, Del Valle® Passion fruit juice and Del Valle® Light Passion fruit juice. During each one of the 10 experimental days, the samples were subjected to 3 erosive demineralization (by immersion of the sample in the studied drink and remineralization (by immersion of the sample in artificial saliva cycles. Profilometry was evaluated at the end of the 1st, 5th and 10th days. For each type of drink, the data were tested using 2 way ANOVA and Bonferroni test (p<0.05. RESULTS: Erosive cycling with regular cola resulted in a higher wear on the first day, on the 5th day the regular drink was similar to zero and greater than light version, on the 10th day there was no difference between the versions of cola drink. For the Sprite drink there was difference between the versions just in the 10th day, in which the higher wear was promoted by the zero version. For guaraná and juice beverages there was no differences between versions in relation to the resulted erosive wear. CONCLUSION: Erosive tooth wear promoted by light and sugarZfree or regular versions of soft drinks and juices showed distinct behaviours over the cycling time.