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Journal of Oral Science & Rehabilitation Issue 01/2016

34 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 The mandible in the symphyseal area is drop- shaped and tilted toward the lingual area. The mandibular symphysis is the medial area of the mandiblethatresultsfromtheendochondralos- sification and the subsequent mergence of Meckel’s cartilage in the 24th week of intrauter- ine life.9 At that time, the musculature forms, affecting the development and subsequent growthofthemandible.10 Inthisregion,themen- talspinesstandoutwherethequadratuslabiiin- ferioris muscle forms. The superior and inferior mental spines are located on the mandible’s in- ner side (Fig. 2). The genioglossus muscle origi- nates from the superior mental spine, while the geniohyoid muscle originates from the inferior mental spine (Figs. 1 & 2). The digastric fossa, from which the anterior digastric muscle origi- nates, is located on the mandible’s inner side, near the lower edge in the paramedian location (Fig. 3). Su bli ngu al arte r y The sublingual artery follows a medial course to the mandible within the sublingual gland and suppliesthemylohyoidmuscle(Fig. 4).Itisatthe level ofthis muscle that the sublingual artery is- sues branches that anastomose with the sub- mental artery.11 The artery ends in the mental spine. Su bme ntal arte r y This artery is a branch of the facial artery. It passes togetherwith the mylohyoid nerve along the inferior surface of the homonymous muscle totheanteriorregion,whereitsuppliestheante- rior digastric muscle (Fig.  5). At this anterior level, the perforating branches ofthe submental artery pierce the mylohyoid muscle to anasto- mose with perforating branches of the sublin- gualartery.12 Vascu lar anasto mo si s There are many anastomoses of the arteries in- volved in the sublingual region. An anastomosis foundbetweenthelingualandthesubmentalar- Fig. 1 Anatomical structures of the sublingual space. Coronal plane. Fig. 2 Anatomical structures of the sublingual space. Sagittal plane. Fig. 1 Fig. 2

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