Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2016-03-07, 22:38:59 | version 1.38.0
36 Volume 2 | Issue 1/2016 Journal of Oral Science & Rehabilitation Rev iew of th e a rteria l anato my i n the ante r i o r mandi ble both branches of the external carotid artery andtheinferioralveolararteryisabranchofthe maxillary artery.11 Katsumi et al. classify the arterial supply to the floor ofthe mouth into fourtypes.18 In Type I, the sublingual region is supplied by the sub- lingual artery. In Type II, it is supplied by the sublingual and submental arteries. In Types III and IV, it is supplied by the submental artery (the difference between the last two being that in Type III the deep lingual artery—which sup- plies the tongue—originates from the lingual artery, and in Type IV it comes from the sub- mental artery). The sublingual artery is the main supply of the sublingual region. Anatomical and radi- ographic studies have identified lingual vascu- lar canals in the mandible where the sublingual artery pierces the mandibular lingual cortical plate (Figs. 6 & 8).19–21 The frequency of lateral lingual canals in the area of the mandibular in- cisors varied between 33.1% and 100.0% and in the area of the canines between 69.0% and 80.0% ofthe cases.19–21 The location ofthe lin- gual canals coincided with the most frequent sitesofclinicallyimportantbleedingduringim- plant placement. The diameter of the canals wasonaverage1.2 mm,whichisenoughtopro- duce severe sublingual bleeding.22 Katakami et al. observed anastomoses between the lateral lingual canals and the inferior alveolar canal in 20.1% ofthe cases.6, 21 The inferior alveolar artery provides an in- traosseous blood supply to the symphyseal area and the mandibular incisors by an incisal branch that runs through the incisal canal. This canal has an average length of 19.78 mm from the mental foramen toward the midline.13 The mentalarterybranchesfromthe inferioralveo- lar artery inside the mandibular canal and exits the mandible through the mental foramen. It supplies the chin and anastomoses with its Fig. 7 Anastomosis of the sublingual arteries. Fig. 8 Mandibular medial lingual canal. Fig. 7 Fig. 8