Background: Exposure of collagen membranes during alveolar reconstructive surgeries can present significant clinical challenges and compromise treatment outcomes. Objective: This review aims to provide treatment strategies for effective clinical management of exposed collagen membranes during reconstructive alveolar ridge augmentation procedures. Materials and Methods: A Literature search was conducted on major electronic databases to identify relevant articles relating to the management of exposed collagen membranes in dentoalveolar surgeries until September 2023. The inclusion criteria consisted of: Only English language studies, including reviews and clinical studies providing recommendations for managing exposed collagen membranes. Animal and laboratory studies were excluded. Relevant data on membrane management were extracted and analyzed descriptively. Results: Collagen membrane exposure in the early phase focuses on infection prevention and promoting soft tissue healing. Techniques such as repositioning, or trimming of the exposed membrane can be employed, along with the application of antimicrobial agents and appropriate suturing techniques. In the delayed phase, techniques such as reapplication of a new membrane or alternative barriers such as a soft tissue graft might be necessary. In case of an infection, the target is to limit and treat the infection by systemic antibiotics and antiseptics. This also may include debridement and membrane removal. Conclusion: The selection of certain management techniques should be based on individual patient factors, defect characteristics, and clinical judgement. Implementing these recommendations may enhance outcomes in bone gain and contribute to the overall predictability, effectiveness and durability of reconstructive alveolar surgeries.
Objective: This case report aims to showcase the utilization of a vascularized interpositional pedicle connective tissue graft and a Maryland bridge as an alternative treatment to bone graft and implant placement. Clinical considerations: The case report illustrated the success of a well-thought-out alternative treatment plan to implant placement, achieving esthetically pleasing and functional results. Conclusion: The vascularized interpositional pedicle connective tissue graft can serve as a less invasive alternative that achieves an esthetically pleasing outcome.
The melanotic neuroectodermal tumor of infancy is a benign but locally aggressive vanillylmandelic acid (VMA) producing neoplasm that originates from neural crest cells. It predominantly affects infants and is most common in the maxilla. Due the anatomical complexity of the head and neck region and the pathological nature of this tumor entity, the surgical therapeutic management poses considerable challenges upon surgeons and patients. The purpose of this article is to report a rare case of a rapidly growing mass, diagnosed as melanotic neuroectodermal tumor of infancy (MNTI), in the right maxilla in a 3-month-old boy which was treated by a radical local resection and followed up after one year without any clinical and radiographical signs of recurrence.
Rehabilitation with dental implants is considered a reliable practice that continues to evolve. In resorbed alveolar ridges, such as in posterior regions of the maxilla, they present challenges to the dental surgeon, due to the pneumatization of the sinus cavity. Maxillary sinus elevation is a safe and predictable technique in these cases, however complications such as the migration of implants to the paranasal sinuses can occur, resulting in oroantral communications and secondary infections. The objective of this article is to present a case report in which bilateral partial sinusectomy was performed using Bichat's adipose body and collagen membrane to close the access, followed by implant installation using the all-on-four technique. Patient who, after six months of surgery, presented displacement of 2 of the 4 implants installed in the maxilla into both cavities of the maxillary sinus, resulting in bilateral oral-sinus communication. Access to the maxillary sinuses was performed, followed by a partial sinusectomy maneuver, removal of the displaced implants, decontamination of the cavity, displacement of the Bichat adipose body into the cavity on the right side and on the left side, a type 1 collagen membrane was adapted for closure. and protection of the anteroposterior window of the maxillary sinus. Conclusion: Partial sinusectomy using Bichat's adipose body and collagen membrane to close the access with immediate implant installation showed promising results in maxillary rehabilitation.
The author has decided to retract this article in order to conduct further studies and provide an updated version.
