Carcinoma basoescamoso na pálpebra inferior: reconstrução com enxerto de cartilagem auricular associado ao retalho de Tripier após cirurgia de Mohs / Basosquamous carcinoma in lower eyelid: reconstruction with auricular cartilage graft associated with the Tripier flap after Mohs surgery

O carcinoma basoescamoso tem alto potencial de recorrência local e metástase, especialmente quando recidivado e na localização periocular. Um paciente masculino de 49 anos foi submetido a cirurgia micrográfica de Mohs e reconstrução subtotal da pálpebra inferior com enxerto de cartilagem da hélice da orelha associado ao retalho de Tripier, evoluindo com ótimo resultado funcional e estético

Basosquamous carcinoma has a high potential for local recurrence and metastasis, especially when it recurs and at the periocular area. A 49-year-old man underwent Mohs micrographic surgery and subtotal reconstruction of the lower eyelid with cartilage graft from the helix of the ear associated with the Tripier flap, evolving with excellent functional and aesthetic results

Influence of filling technique and bevel preparation on marginal sealing of conventional and low shrinkage composite restorations

AIM: The aim of this study was to evaluate two composite restorations (conventional methacrylate-based and low shrinkage-based silorane), associated or not to beveling and incremental technique, in relation to the microleakage and marginal gap formation tests. MATERIAL AND METHODS: 30 sound human molars had their mesial and distal surfaces prepared with and without bevel. The teeth were divided into six groups according to the type of resin (conventional nanofilled or silorane resin), and restorative filling technique (incremental technique or builk). Microleakage and marginal gap formation data were statistically analyzed by Kruskal-Wallis and Chi-Square tests, with a significance level set at 5%. RESULTS: Group 1 (Z350 XT, without bevel, incremental technique) presented highest rate of microleakage and marginal gap in most of the restorations, with statistically significant differences. Groups 4 and 6 (P90, beveled, builk and P90, beveled and incremental technique) had lower rates of microleakage and absence of marginal gaps in most of the restorations. CONCLUSION: It's concluded that the silorane showed lower rates of marginal gaps and microleakage, when compared to the conventional methacrylate-based resin. Bevel preparation was effective in reducing microleakage and marginal gaps for both resins used. Incremental technique was not necessary when associated with low shrinkage composite resin.