. Oral anaesthesia; local anaesthesia in the oral cavity, technique and practical application in the different branches of dentistry. of the cheek and lip it becomes less dense,and under the refiection of the mucous membrane the submu-cosa is a thick layer of loose connective tissue. The same is trueon the palatal side. The angle formed by the alviolar andpalatal process is filled in with a large amount of connectivetissvie, containing fat cells and the palatal mucous the central jjortion of the liard palate, tlie submucosa isagain very thin and extremely fibrous. Tlie tunica prf)]
. Oral anaesthesia; local anaesthesia in the oral cavity, technique and practical application in the different branches of dentistry. of the cheek and lip it becomes less dense,and under the refiection of the mucous membrane the submu-cosa is a thick layer of loose connective tissue. The same is trueon the palatal side. The angle formed by the alviolar andpalatal process is filled in with a large amount of connectivetissvie, containing fat cells and the palatal mucous the central jjortion of the liard palate, tlie submucosa isagain very thin and extremely fibrous. Tlie tunica prf)])ria is made up of a mass of dense connectivetissue Itundles, and papillae are extending into the epithelium. The epithelium is the thick covering of the mucous mem-brane. The blood supply is very free, larger branches are found inthe submucosa giving off capillaries, which extend into the pa-pillae of the tunica jtropria, where they freely ramify and anas-tomose. These give the nmcous membrane its reddish color. Nerves are numerous. Irimitive nerve fibers extend fromthe subnuicosa into the papillae of the tunica ])ropria. The. Fig. 24. Section through the upper jaw in the incisor region. A. Enamel; B. Dentin; C. Interglobular spaces; D. Epithelium; E. Tunica propria; F. Sub- mucosa; G. Periosteum; H. Outer Plate of alviolar process; I. Inner Plate of alviolar process; K. Cement; L. Dental nerves and vessels. TOPOGRAPHY 37 nerve supply seems to be more nl)niulaiit in the anterior part ofthe month, while the molar region of the gum, and the mem-brane over the ranms is hardly sensitive. Injections slionld l»e made into the loose jiarts of the snb-mncosa, where tlie solution is taken up easily witli little force.
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