. The science and practice of dental surgery. cuperative last point is sho\vn by the condition ofthe alveolar process: the presence of sclerosisof bone is indicative of resistance.• Treatment may be of two kinds : (1) Local;(2) General. Of whatever type the case may be, attentionshould first be dnected to the local conditions,as some cases, particularly those of the secondtype, are quite successfully treated by localattention only. This shoidd consist in thethorough removal of all local irritants. Teeththat are hopelessly loose must be so regarded;for their movement, particularly d
. The science and practice of dental surgery. cuperative last point is sho\vn by the condition ofthe alveolar process: the presence of sclerosisof bone is indicative of resistance.• Treatment may be of two kinds : (1) Local;(2) General. Of whatever type the case may be, attentionshould first be dnected to the local conditions,as some cases, particularly those of the secondtype, are quite successfully treated by localattention only. This shoidd consist in thethorough removal of all local irritants. Teeththat are hopelessly loose must be so regarded;for their movement, particularly during masti- cation, irritates the surrounding tissues andthus aggravates the condition. Such teethare those having less than a half to a third ofthe root supported by alveolus. Teeth thatare loose, but offer some chance of cure,should be supported by means of a splint,or Ugatures to them from the neighbouringfirm teeth. Many forms of splmt and ligature,too numerous to describe here, have beensuggested. Burchard, in his Text-hook of Dental. Ai. 509. Apiuul regiun uf saiuu, iiiudi&ii Scutiuii. y\ 35. Apex of root with hyperplasia of cementum ; B, Hyper-plasic periodontal membrane; C, Alveolar bone withmanyosteo-porotic spaces; D, Osteoclasts. (A. Hopewell-Smith : Dental Cosmos.) Patliology, deals with a number of them indetail. Deposits of calculus must be removedthoroughly. They may be either salivarydeposits of a liglit browTi colour, frequentlyfound upon the portions of teeth above thegum margin, or serumal deposits. The formerare derived from the saliva, and are regardedby Tomes as not being responsible for thecondition. The latter are thought by some tocome from the blood, and to be indicative of auric acid condition. They are of a greenish-brown colour and are usually found below the 608 gum margin, but in advanced cases they areexposed to view owing to the recession of the gumand alveolar process. Considerable difficultywill be experienced in their comj)lete removal,as
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