Topography Of Greater Palatine Foramen In Relation to Interpalatine Suture in Adult Dry Skull
Introduction The greater palatine foramens (GPF) are close to the palate lateral border, behind the palate-maxillary suture, which previously are deep vascular grooves. The greater palatine foramen (GPF) is related to the upper 3rd molar tooth in most of the skulls (55%), 2nd molar in (12%), between the 2nd & 3rd molar in (19%) and retromolar in (14%). The shape of the foramen is elongated antero-posteriorly; however, an unusually crescent shaped foramen is rare.At either posterior angle of the hard palate is the greater palatine foramen, for the transmission of the descending palatine vessels and greater palatine nerve; and running anteriorly (forward) and medially (towards the center-line) from it is a groove, for the same vessels and nerve. To anaesthetize posterior part of soft palate for various surgical procedures, knowledge of the position of the greater palatine foramen (GPF) is very important. Blocking of maxillary division of trigeminal nerve or its branches for local anaesthesia is common practice for maxillofacial surgeries. Aim To analyse the relationship of greater palatine foramen to the inter palatine suture in adult dry skull. Marterial and Method The measurements between the reference points, were done using the following instruments: divider,ruler. The first measurements performed from the right and left greater palatine foramens to the inter palatine suture. One point of the divider is placed on the greater palatine foramen and other point is placed on the inter palatine suture and the distance between them is measured with the help of a ruler. Totally 100 skulls were measured with the same procedure. Result Totally 100 skulls were measured and the total mean value is 16.4 and the standard deviation is 4.96.The minimum value of right greater palatine foramen to interpalatine suture is 1.30 and maximum is 2.0 and the minimum value of left greater palatine foramen to interpalatine suture is 1.40 and maximum is 2.0.The mean value for the minimum and maximum of right greater palatine foramen to interpalatine suture is 1.65 and the standard deviation is 1.41.The mean value for the minimum and maximum of left greater foramen to interpalatine to interpalatine suture is 1.70 and the standard deviation is 1.46.