Tuber maxillae

Maxilla cranial

Plaster model of the toothless upper jaw; Tuber maxillae; Paratubic space

Maxilla from lateral

The tuber maxillae ( Latin tuber "cusp", maxilla "upper jaw"; synonym: Eminentia maxillae ) is a bony elevation of the upper jaw behind the last molar . It is the dorsal (back) wall of the maxillary sinus (sinus maxillaris) in which the foramina alveolaria corporis maxillae are located. Branches of the maxillary nerve , the rami alveolares superiores posteriores, run through the small openings in the canals alveolares to the molars of the upper jaw. The maxillary tuberosity is the dorsal end of the alveolar ridge on the left and right. The pterygomandibular plica begins dorsal to the maxillary tuberosity .

Function in dentures

The maxillary tuberosity has an important function in the fabrication of a full denture in the upper jaw. If the tuber is pronounced, then the prosthesis can encompass the tuber in the paratubar space, which considerably improves the hold of a prosthesis when biting off.

The degradation of the jawbone is less in the area of the maxillary tuberosity, so that this area can also be suitable for anchoring an implant in the case of severely degraded jawbones .

Tooth extraction complication

In a ankylosis of the tooth with the surrounding bone, at Mitfassen of the bone at the forceps extraction, at too high a power insert or thin alveolar walls , it may in an extraction of wisdom tooth come to a fracture of the maxillary tuberosity. The fragment is repositioned and fixed in order to preserve the tuberosity. After the bone fragment has healed, the tooth can be surgically removed while protecting the tube.

Individual evidence

^ Jochen Fanghänel, Franz Pera, Friedrich Anderhuber, Robert Nitsch: Waldeyer - Anatomie des Menschen . Walter de Gruyter, 2009, ISBN 978-3-11-091119-0 , p. 220 ( google.com ).
↑ Wolfgang Gernet, Reiner Biffar, Norbert Schwenzer, Michael Ehrenfeld: Dental prosthetics . Georg Thieme, 2011, ISBN 978-3-13-165124-2 , p. 170 ( google.com ).
↑ Horst Gründler, Ulrich Stüttgen: The total prosthesis . Verlag Neuer Merkur, 2005, ISBN 978-3-929360-84-4 , p. 270 ( google.com ).
↑ Jarg-Erich Hausamen, Egbert Machtens, Jürgen F. Reuther, Harald Eufinger, Alexander Kübler, Henning Schliephake: Oral and maxillofacial surgery . Springer, 2012, ISBN 978-3-642-17801-6 , pp. 105 ( google.com ).
↑ J. Handschel, L. Figgener, U. Joos: [Forensic evaluation of injuries to nerves and jaw bone after wisdom tooth extraction from the viewpoint of current jurisprudence]. In: Oral and maxillofacial surgery: MKG. Volume 5, Number 1, January 2001, ISSN 1432-9417 , pp. 44-48, PMID 11272387 .

[1] Jochen Fanghänel, Franz Pera, Friedrich Anderhuber, Robert Nitsch: Waldeyer - Anatomie des Menschen . Walter de Gruyter, 2009, ISBN 978-3-11-091119-0 , p. 220 ( google.com ).

[GernetBiffar2011-2] Wolfgang Gernet, Reiner Biffar, Norbert Schwenzer, Michael Ehrenfeld: Dental prosthetics . Georg Thieme, 2011, ISBN 978-3-13-165124-2 , p. 170 ( google.com ).

[3] Horst Gründler, Ulrich Stüttgen: The total prosthesis . Verlag Neuer Merkur, 2005, ISBN 978-3-929360-84-4 , p. 270 ( google.com ).

[4] Jarg-Erich Hausamen, Egbert Machtens, Jürgen F. Reuther, Harald Eufinger, Alexander Kübler, Henning Schliephake: Oral and maxillofacial surgery . Springer, 2012, ISBN 978-3-642-17801-6 , pp. 105 ( google.com ).

[5] J. Handschel, L. Figgener, U. Joos: [Forensic evaluation of injuries to nerves and jaw bone after wisdom tooth extraction from the viewpoint of current jurisprudence]. In: Oral and maxillofacial surgery: MKG. Volume 5, Number 1, January 2001, ISSN 1432-9417 , pp. 44-48, PMID 11272387 .