The traumatic bone cyst is characterized by the presence of an asymptomatic sinus devoid of epithelial lining, which is rarely found in the jaws. Objective To describe the clinical, surgical and radiographic findings of traumatic bone cysts. Material and Method A retrospective study was made of patients diagnosed with traumatic bone cysts at an oral pathology department from 1992 to 2007. Data on the clinical, radiographic and surgical complications were gathered. Results Twenty-six cases of traumatic bone cyst were diagnosed in 15 years; 17 were male and 09 were female. Most patients were within first two decades of life and had no pain or history of trauma in the affected area. The multilocular pattern was observed in only seven cases, its radiographic appearance suggests a tumor. Air was found inside the lesion in about 70% of cases; serous fluid with blood and blood only were uncommon within the lesions. Conclusion A higher prevalence in young patients, absence of a history of trauma, and a small number of lesions containing serous fluid with blood reflects the need to discuss the true pathogenesis of traumatic bone cysts.

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The aim of this systematic review and meta-analysis was to compare the peri-implant vertical bone loss of immediate loading of implant crowns using the one abutment at one time (AOT) protocol and implants with abutment removal (AR). This systematic review with meta-analysis was reported according to the PRISMA statement, with guidance from the Cochrane Collaboration Handbook. A total of 103 publications were identified in the PubMed database and reference lists of examined articles. After the screening of titles and abstracts, the eligibility of eight full-text articles was assessed. Five studies published between 2010 and 2015 were included in the meta-analysis. There was less peri-implant vertical bone loss at implants using an AOT protocol than at implants using AR protocol (WMD -0.19, 95% CI -0.26 to -0.13; p<0.0001; random-effects model). In conclusion, the use of the AOT protocol with platform-switched Morse implants results in less bone loss than do AR procedures, but this effect may not be clinically relevant. The preservation of marginal bone level achieved with the AOT protocol may not enhance the aesthetics. These results should be interpreted with caution.

Atualmente a utilização dos implantes representa uma excelente alternativa na reabilitação funcional e estética para a odontologia. Portanto, o objetivo do presente estudo é relatar um caso clinico sobre a utilização de um implante mediato para substituição de elemento dentário com reabsorção radicular em área estética. Paciente do gênero masculino, 18 anos, procurou atendimento odontológico queixando-se de sangramento durante a escovação e insatisfação com o estética do sorriso. No exame clinico intra-oral observou-se que a unidade 11 possuía retração nos tecidos gengivais. Além disso, o exame radiográfico panorâmico evidenciou a presença de reabsorção corono-radicular da respectiva unidade dentária. O plano de tratamento incluiu três estágios cirúrgicos, incluindo a exodontia minimamente traumática do elemento 11 e enxertos de tecidos moles e duros. Foi possível concluir que a utilização do protocolo cirúrgico exibiu excelentes resultados estéticos e funcionais, melhorando o aspecto psicosocial do paciente. É importante ressaltar que deve ser feito um correto planejamento da área de extração que será reabilitada com implante, afim de obter um bom prognóstico a longo prazo.

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