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Position of the greater palatine foramen in relation to the upper molars by cone beam CT

Grant number: 10/14922-9
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2010
Effective date (End): October 31, 2011
Field of knowledge:Health Sciences - Dentistry - Dental Radiology
Principal researcher:Izabel Regina Fischer Rubira Bullen
Grantee:Carla Renata Sanomiya Ikuta
Home Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil


The technique of greater palatine nerve block is widely used mainly in oral surgery. The technique's success is the knowledge of anatomy, specifically the location of greater palatine foramen. There are studies tracking it through skulls, but few studies through computed tomography images and any study linking it to the upper molars, which are the main reference for the clinical anesthetic technique. Therefore, the aim of the study is to evaluate the positioning of the greater palatine foramen (GPF) for maxillary molars, alveolar ridge and palatal suture, using cone beam computed tomography of Brazilian adults in order to establish a reference and to contribute in the anesthetic technique of nerve block greater palatine. 100 Cone beam computed tomography (CBCT) of jaw will be evaluated obtained from the archive of images of ICAT Clinic Radiology Department of Stomatology, Bauru School of Dentistry, University of São Paulo. The pictures must be of patients with the 1st, 2nd and 3rd molar or not erupted, and age above 18 years. It will be used the reconstruction axial in the depth of the teeth to be drawn five tangent lines to the points of contacts of the molars, parallel to each other. The tangents are superimposed on the depth of the GPF and its position is classified. Also, be measured the diameter of the GPF and the presence of possible anatomical variations.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANOMIYA IKUTA, CARLA RENATA; CARDOSO, CAMILA LOPES; FERREIRA-JUNIOR, OSNY; PEREIRA LAURIS, JOSE ROBERTO; COUTO SOUZA, PAULO HENRIQUE; FISCHER RUBIRA-BULLEN, IZABEL REGINA. Position of the greater palatine foramen: an anatomical study through cone beam computed tomography images. SURGICAL AND RADIOLOGIC ANATOMY, v. 35, n. 9, SI, p. 837-842, NOV 2013. Web of Science Citations: 16.

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