Diagnosis and Management of oro-antral fistula: Case series and review.

INTRODUCTION AND IMPORTANCE: The oro-antral communication (OAC) is a pathological opening between the maxillary sinus and the oral cavity. When it does not close spontaneously or if it is not treated, it remains permeable and epithelializes to develop into an oro-antral fistula (OAF) and can cause maxillary sinusitis. CASES PRESENTATION: The authors present through 5 clinical cases the different steps of the surgical protocols opting for the buccal fat pad flap and the advanced buccal flap to treat OAF/OAC. CLINICAL DISCUSSION: Surgical closure of the OAC within 48 h is recommended to avoid complications. Several alternative techniques have been described over the years for the management of the OAC and OAF, with their advantages and limitations. The most commonly used surgical flaps are of two types: the advanced buccal flap and the buccal fat pad (BFP) flap. CONCLUSION: The adequate availability of the advanced buccal flap and the buccal fat pad (BFP) flap in the majority of patients, the easy handling, the minimal donor site morbidity as well as the excellent blood supply make them perfect flaps for the closure of OAF/OAC. However, follow-up remains a key point and very important to avoid complications. The present case series was limited by the small number of patients and the authors recommend a study with larger groups.

Fechamento de fístula bucossinusal utilizando o corpo adiposo bucal - Técnica convencional x técnica do túnel: relato de casos clínicos / Closure of oroantral fistula with pedicled buccal fat pad - Convention technique x Technique of the tunnel: cases report

As comunicações bucossinusais são ocorrências comuns, geralmente relacionadas a exodontias de unidades dentárias superiores posteriores devido ao íntimo contato dos ápices radiculares destes com o assoalho do seio maxilar. A passagem de alimentos e líquidos entre as cavidades oral e nasal é o sinal mais comum para o diagnóstico. O presente trabalho objetiva revisar a literatura especializada para demonstrar as facilidades, além de vantagens e desvantagens da utilização da bola de Bichat no fechamento de comunicações bucossinusais, apresentando dois casos clínicos utilizando duas técnicas diferentes... (AU)

The oro-antral communications is commonplace, often related to extractions units of dental higher later due to close contact with the shoot tips root of the floor of the maxillary sinus. The most common diagnosis signal is the passage fluids and small particles of food among oral and nasal cavites. This paper aims to review the literature to demonstrate the facilities, as well as advantages and disadvantages of the use of the Bichat ball at close of oro-antral communications, presenting two clinical cases using two different techniques... (AU)