Fig. 1. Treatment strategies for OAF closure
Fig. 1. Treatment strategies for OAF closure
Author year
No. of participants
Method
Autogenous soft tissue flaps
Lin et al. 1991
16
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Parvini, P., Obreja, K., Sader, R. et al. Surgical options in oroantral fistula management: a narrative review.
Int J Implant Dent 4, 40 (2018). https://doi.org/10.1186/s40729-018-0152-4
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Received: 14 August 2018
Accepted: 02 November 2018
Published: 27 December 2018
DOI: https://doi.org/10.1186/s40729-018-0152-4
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Correspondence to
Karina Obreja.
Department of Oral Surgery and Implantology, Carolinum, Johann Wolfgang Goethe-University, Frankfurt, Germany
Puria Parvini, Karina Obreja, Frank Schwarz & Loutfi Salti
Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Frankfurt am Main, Germany
Robert Sader
Department of Oral Surgery, Universitätsklinikum Düsseldorf,...
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No funding to declare.
All data generated or analyzed during this study are included in this published article.
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Buccal fat pad
Bone graft transplantation
Connective tissue grafts
Free mucosal graft
Guided tissue regeneration
Oroantral fistula
Platelet-rich fibrin
By reviewing the literature, we can conclude that in selecting the surgical approach to close an oroantral fistula, different parameters have to be taken into account, including location and size of fistula as well as its relationship to the adjacent teeth, height of the alveolar ridge, persistence, sinus inflammation and the general health of the patient.
A small oroantral fistula of less than 5...
Logan and Coates described a procedure that provided closure of OAF in immunocompromised patients [74].
The oroantral fistula was de-epithelialized under local anesthesia, and the patient wore an acrylic surgical splint continuously for an 8-week period. The acrylic surgical splint covered the fistula and the edentulous area including the hard palate. The investigators reported complete healing o...
Use of guided tissue regeneration has been documented by Waldrop and Semba [71]. This method uses an absorbable gelatin membrane, allogenic bone graft material, and a nonresorbable expanded polytetrafluoroethylene (ePTFE) membrane. After flap reflection, an absorbable gelatin membrane is placed over the OAF with its edges on the bony margins of the perforation, which serve as a barrier for the bon...
The use of a bioabsorbable root analog made of β-tricalcium phosphate for closure of oroantral fistulas was proposed by Thoma et al. [68]. The root replicas were fabricated chair side, using a mold of the extracted tooth [10]. The investigators reported that the healing was uneventful. However, fragmentary roots or overly large defects prevent replica fabrication or accurate fitting of the analog...
Polymethylmethacrylate has been introduced as an alternative technique for closing OAFs [64]. After 24 h of immersion in a sterilizing solution, the polymethylmethacrylate plate is placed over the defect. Mucoperiosteal flaps are then replaced without attempting to cover the acrylic plate. The polymethylmethacrylate plate is removed as soon as the edges become exposed. One of the common disadvant...
Various synthetic materials have been used for OAF closures. Use of gold foil and gold plate for the closure of OAFs was reported for the first time by Goldman and Salman, respectively [59, 60]. It is a simplified technique for the closure of oroantral fistulas. The technique consists of elevating the mucoperiosteum to expose the bony margins of the fistula. Then, the opening is covered with an ov...
Multiple techniques have been described for the closure of OAFs using lyophilized fibrin glue of human origin [53]. In this technique, the fibrin glue is prepared and injected into the socket, together with the collagen sheet. Stajčić et al. stressed the importance of inserting the syringe above the floor of the antrum to protect the clot from airflow [53]. The technique is simple with few posto...
An autogenous bone graft and platelet-rich fibrin (PRF) membrane as a treatment strategy for closure of OAF has also been proposed [50]. PRF is a product of centrifuged blood. The biochemical components of PRF are well-known as factors acting synergistically in the healing process. This includes platelet-derived growth factor (PDGF), whose components are the reason why PRF has anti-inflammatory pr...
Recently, auricular cartilage graft has been used for the closure of OAFs. A full-thickness flap is raised at the defect site [47]. A semicircular incision is then made posteriorly over the conchal cartilage. The conchal cartilage with overlying perichondrium is exposed with a blunt dissection. The harvested auricular graft is then adapted on the defect site and sutured with the surrounding tissue...
A retromolar bone graft is a viable procedure for OAF closure. However, harvesting of a retromolar bone can occasionally be combined with removal of the third molar, which may affect acceptance of the procedure by patients [44]. When compared to chin bone grafts, the significant disadvantage of the retromolar donor area is the confined amount of bone available [45]. The incision is made medial to ...
The tongue is an excellent donor site for soft tissue defects of the oral cavity, due to its pliability, position, and abundant vascularity. Tongue flaps can be created from the ventral, dorsal, or lateral part of the tongue [36]. The surgical design of the flap is dictated by the location of the defect. A lateral tongue flap has been described as a suitable method for the closure of large OAF [37...
Free mucosal grafts (FMG) or connective tissue grafts (CTG) are suitable for the closure of small to moderate size defects in the premolar area as well as small to medium size-persistent defects. In contrast to the techniques described so far, the harvested grafts are not directly vascularized. The flap initially receives its nutrients within the first three postoperative days by diffusion alone, ...
The palatal straight advancement flap is of limited use due to the inelastic nature of the palatal tissue, which reduces its lateral mobility. For the same reason, it is suitable for the closure of minor palatal or alveolar defects [17].
The palatal hinged flap has been used successfully to close small fistula of the hard palate, i.e., those less than 2 cm in diameter in a one-stage operation [1...
Môczáir [14] described closing alveolar fistulas by the buccal sliding flap, shifting the flap one tooth distally. This technique produces only a negligible change in the depth of the buccal vestibule. A drawback of this approach is that it requires a large amount of dentogingival detachment in order to facilitate the shift, which may result in gingival recession and periodontal disease.
The fi...
A narrative literature review of articles and case reports for oroantral fistula has been conducted in the PubMed databases of published English literature. Articles published until April 2018 were reviewed. In addition to 262 articles on the closure of oroantral, 4 articles on the closure of antrooral fistula in humans, and 5 articles in animals, citations were referenced to identify further rele...
Radiologically, in the computed tomography (CT) or cone beam computed tomography (CBCT), the oroantral fistula might show as sinus floor discontinuity, opacification of the sinus, or communication between the oral cavity and the sinus. In addition, focal alveolar atrophy and associated periodontal disease may be observed [6]. In chronic OAF, there is generalized mucosal thickening. Recent studies ...
An oroantral fistula (OAF) can be defined as an epithelialized pathological unnatural communication between the oral cavity and the maxillary sinus [1]. The term oroantral fistula is used to indicate a canal lined by epithelium that may be filled with granulation tissue or polyposis of the sinus membrane [2]. They can arise as late sequelae from perforation and last at least 48–72 h. An oroantr...