Schneiderian membrane

The Schneiderian membrane, also called the Schneiderian epithelium, is the lining of the paranasal sinuses and nasal cavity. It’s unique in that the ciliated columnar lining is ectodermally derived and features goblet cells. The neighboring respiratory epithelium, which appears similar to the Schneiderian membrane, is derived from the endoderm. One of the most common complications that can occur during a sinus grafting surgery is a tear or perforation in the Schneiderian membrane of the maxillary sinus. If this occurs, typically, the surgeon will repair the perforation at the same time the graft is placed, and few additional risks of complications exist. However, in some cases, patients will develop an infection in the maxillary sinus or surrounding areas of the maxillofacial complex after a substantial or complete tear in the membrane. This infection is serious and may result in the failure of a recently completed bone graft or dental implant. Post navigation By using the search tool provided, you agree to the terms and conditions listed below. ICOI’s Disclaimer of Liabilities: The entire worldwide ICOI membership directory is included on our website for the benefit of both members and their patients trying to locate an implant dentist or a member of an implant dental team. Included in ICOI’s membership directory, when provided by a member, is the type of dentist (e.g. a general dentist or a specialist) as well as whether the ICOI member performs the surgery or restoratio...

Citation Levi Cuadrado-González , Antonio Jiménez-Garrudo , Aritza Brizuela-Velasco , Esteban Pérez-Pevida , David Chávarri-Prado , Markel Diéguez-Pereira , José María Pacho-Martínez; A Modification to Schneiderian Membrane Perforation Repair Technique: The Hammock Approach. J Oral Implantol 1 August 2018; 44 (4): 301–304. doi: Download citation file: • • • • • • • • • Figure 1. Schneiderian membrane perforation. Figure 2. Horizontal perforations through palatal mucosa. Figure 3. Horizontal perforations through buccal sinus wall. Figures 4 and 5. Pulling the collagen membrane from the palatal perforations into the cavity, thanks to the nonresorbable suture. Close modal Once the final regenerating cavity has been prepared, 2 horizontal perforations are made, using a lance-shaped drill bur, through the palatal mucosa reaching the palatal sinus wall surpassing it up to the cavity. These perforations must be made over the height required for placing the future dental implants. Afterwards, the 2 corresponding horizontal perforations are made in the buccal sinus wall above the lateral window created for sinus lift procedure ( A resorbable collagen membrane is prepared (Jason; Botiss Biomaterials, Zossen, Germany) by making 2 perforations at its narrowest side with a nonresorbable 4/0 sheathed polyamide 6/6 suture. The first perforation is made in one of the corners, and the second one is made in the opposite corner but in the reverse direction. Then, inside the prepared sinus ca...

Definition The maxillary sinus is one of the four paranasal sinuses found near the nose that drains into the middle meatus via the osteomeatal complex. Maxillary sinus Maxillary Sinus Location There are actually two maxillary sinuses, both located in the maxilla, which is the fixed upper bone of the jaw formed by two maxillary bones fusing together. They are located laterally and slightly below the nasal cavities in the nose, and reside in the cheekbones. Maxillary Sinus Anatomy The maxillary sinus is the largest sinus in the body, and so the largest of the four paranasal sinuses. It contains three cavities: • Alveolar recess – bounded by the alveolar process of the maxilla body, points downwards • Zygomatic recess – bounded by the zygomatic bone, points laterally • Infraorbital recess – bounded by the inferior orbital surface of the maxilla, points upwards These recesses are surrounded by the walls of the maxillary sinus which, as mentioned previously, are formed by different parts of the surrounding bone: • Anterior wall – formed by facial surface of maxilla • Posterior wall – formed by infratemporal surface of maxilla • Superior wall – formed by orbit floor • Inferior wall – formed by alveolar and palatine processes of the maxilla The maxillary sinus also contains a medial wall, which is rectangular and made primarily of cartilage. It separates the sinus from the nasal cavity. Some of the walls have grooves in them to house nerves and blood vessels. Sinus and nasal cavi...