1402
T h e Journal o f the A m erica n D en ta l Association and T h e D en ta l C osm os
it is difficult to break the habit entirely, and I doubt that our efforts w ill have a worth-while result, there being much damage to the bony structure. T h e habit has even caused an elongation o f the fin gers. W e are, o f course, trying to do everything possible to restore normal oc-
and normal intelligence, the patient seems quite proud to demonstrate his accom plishment o f finger-tongue sucking and w ill gladly pose for any operator. Republic Building.
The Dentigerous Cyst: Report of a Case By A D R IA N R. K R IST E L L E R , D.D.S. Newark, N. J.
T h e dentigerous cyst is, according to Thom a, the most common type of epi thelial cyst and is usually formed any time during the developmental stage up to the formation o f the teeth. T h e only clinical sign is the non-eruption o f teeth. REPORT OF CASE
History.— H. S., a man, aged 22, suffered from a suppurative colitis and general sys temic debility. There was no previous dental history except that the upper left second molar was prevented from normal eruption.
Appearance
Fig. 4 elusion by the use o f orthodontic appli ances. I have some interesting moving pic tures o f this patient, showing the way in which he indulges in this habit o f fingertongue sucking, and the obvious enjoy ment he derives from it. Despite his age
of cyst.
Physical Examination.— A full mouth series of roentgenograms revealed a partly impacted lower right third molar; a totally impacted lower left third molar, and an upper left second molar of retarded erup tion. Around the area of the second molar was a hard mass, which gave the appear ance of bone structure. On further roentgenographic examination and palpation, diagnosis was made of a dentigerous cyst. Treatment.— Under an ethyl chloride spray, the tissue was incised, and a straight shank elevator and forceps were applied for the removal of the cyst. The surround ing tissue seemed normal. Pathologic Examination.— The cyst did
1403
Practice in Paragraphs not seem to have any attachment to the second molar and, on its removal, the sur face, though greatly marked, was very smooth, as shown in the accompanying illustration. Subsequent Course.— After removal of the dentigerous cyst, the upper left second molar moved toward normal occlusion.
Comment.— After removal of the cyst, the patient showed a marked improvement in oral hygiene and an increased comfort in mastication, as well as an improved food taste. The colitis seemed to abate slightly and the general systemic symptoms im proved. 1180 Raymond Boulevard.
PRACTICE IN PARAGRAPHS This department is intended fo r busy readers. I t aims to tell a vivid story in a few words. Items should be o f a practical character, and free from padding— not more than a paragraph or tw o. W e exact no limit, but two hundred words can tell most of these stories. Send in your ideas; they will be welcome. Visiting— Visiting accounts for the biggest financial loss in dentistry.— Charles C. N orris, Oshkosh, W is. Drawer fo r G old— A cabinet should have a metal lined drawer for gold work as gold filings are valuable.— Charles C. Norris, Oshkosh, W is. Stain. Rem over— Since most dentists use silver nitrate in some form, a bottle of stain remover should be kept close at hand.— Charles C. N orris, Oshkosh, W is. C ode o f Numbers— A code o f numbers greatly facilitates a busy practice. A number spoken to an assistant can make clear your exact wishes.— Charles C. N orris, Oshkosh, W is. Cost— A lead pencil is about the most useful instrument in the office. Use it and know what your business is costing you. Y ou cannot run a successful practice by guess.— Charles C. Norris, Oshkosh, W is. O perating W h ile Seated— Ninety per cent o f dental services can be rendered while sitting. A very safe and convenient stool can be had by shortening the legs of an ordinary swivel office stool.— Charles C. Norris, Oshkosh, W is. Polishing Fillings— A piece o f tape is placed at the gingival margin and the matrix put in place, then the amalgam filling is inserted. T h e tape is in position for clean ing and polishing fillings at gingival margins.— Charles C. Norris, Oshkosh, W is. Cleaning Instrument Joints— T h e joints of various instruments such as pliers and forceps often become corroded or gummed up, so to speak, so that they no longer w ork freely. A small quantity of paint and varnish remover applied in the joint will loosen the debris so that it may be wiped off with a cloth. Additional applications may be made if necessary.— L loyd H . Fym bo, Sergeant Bluff, Iow a, Jour. A.D .A. & D. Cos., Vol. 24, August 1937