The "Phase Down" of Dental Amalgam Restorations - What are the Criteria for Replacement and Indication?

ABSTRACT Objective: To guide professionals about the criteria for replacing amalgam restorations and inform them about the new guidelines regarding the use/indication of this (amalgam) material after the Minamata Convention - COP-4. Material and Methods: The articles were selected from the databases (PubMed, Scielo, Bireme), and relevant articles on the subject between the years 2003-2021 were selected. Recently, social media have been flooded with dental treatments that aim to perform restorations only with composite resins or other types of esthetic material and completely replace all dental amalgam restorations, irrespective of their time in place, size, and functionality. Results: Although improperly, it has been noted that this information reaches patients, and they are led to believe in the inaccurate data that is passed on, such as, for example, (that amalgam leads to) permanent contamination by mercury, causing systemic problems and the loss of the tooth. Conclusion: The "phase down" of amalgam in research and teaching has previously been observed in several countries worldwide; however, its use is still necessary given particular circumstances, which, theoretically, make it a material with exact indication.

Tratamento orto-cirúrgico de mordida aberta esquelética associada a múltiplas recessões periodontais e abfrações - relato de caso / Surgical-orthodontic treatment of a skeletal open bite associated with multiple periodontal recessions and abfractions - case report

O número de indivíduos adultos que vem procurando por tratamento ortodôntico nas últimas décadas é crescente. O tratamento desses pacientes, muitas vezes, apresenta dificuldades adicionais à má oclusão e, dentre as mais comuns, estão aquelas que envolvem problemas nos tecidos periodontais. Quando tais fatores estão associados à má oclusão severa, como a de etiologia esquelética, a correção ortodôntica torna-se ainda mais complexa. O objetivo do presente artigo é descrever uma abordagem interdisciplinar de uma paciente com mordida aberta esquelética e dentária severas, bem como comprometimento estético também derivado da presença de múltiplas recessões gengivais e abfrações, que resultou em importante ganho em estética facial e dentária, assim como em significativa melhora funcional.

The number of adults seeking for orthodontic treatment has consistently increased in the past decades. Treatment of these patients may be more challenging if the periodontal tissues exhibit limitations. When these factors are associated to severe skeletal malocclusions, the orthodontic treatment becomes even more complex. The purpose of the present study was to report an interdisciplinary approach implemented in the treatment of a patient with a severe skeletal open bite and a compromised aesthetic condition that was also derived from the presence of multiple periodontal recessions and abfractions, which resulted in a significant intra and extra-oral aesthetics improvement as well as in functional enhancement.

Mordida de Brodie: relato de caso / Brodie Bite: interceptive and corrective approach of a challenging malocclusion - case report

A mordida cruzada posterior completa por vestibular, conhecida como mordida de Brodie, é uma má oclusão rara e com indicação clara de abordagem interceptora. Entretanto, os desafios encontrados durante a terapia deste tipo de má oclusão são inúmeros, especialmente a elevada taxa de recidiva e as limitações mecânicas inerentes à expansão mandibular e contração maxilar. Este artigo apresenta um caso clínico que ilustra a abordagem interceptora e corretiva de uma mordida de Brodie, associada a uma má oclusão de Classe II, mordida profunda de uma criança de 7 anos de idade, com o objetivo de contribuir na terapia de casos semelhantes. Uma reflexão acerca da eficácia e eficiência da interceptação das mordidas cruzadas posteriores vestibulares é também apresentada

Posterior buccal cross bite, also called scissors bite or Brodie bite, is a rare malocclusion with clear indication of interceptive approach. However, several challenges are found during its treatment, specially the high relapse rate and the mechanical limitations of expanding mandibular arch and contracting maxillary arch. Therefore, this paper reports the orthodontic interceptive and corrective treatment of 7 year-old girl, with a Class II, deep bite, Brodie bite. A reflection about effectiveness and efficiency of such therapy was also presented.