The morbid anatomy of periodontal disease / By J.F. Colyer, L.R.C.P. Lond., M.R.C.S., Eng., L.D.S.

  • Colyer, Frank, 1866-1954.
Date:
1914
Catalogue details

Licence: In copyright

Credit: The morbid anatomy of periodontal disease / By J.F. Colyer, L.R.C.P. Lond., M.R.C.S., Eng., L.D.S. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    incisors than between the other front teeth. An examination of the specimen shows that the destruction of bone is more advanced around the incisors than the molar teeth. The skiagrams (Fig. 8) bring out clearly the extent of the bone lesion and also the resistance of the tissue between the central incisors. The specimen shown in Fig. 9 from a male, aged 30, shows in an excellent way the morbid anatomy of an advanced case. The bone around the incisors has almost disappeared, and the molar Pig. 11. Maxilla showing cup-shaped absorption of the bone around the right first molar. teeth are uncovered to near their apices. Cup-like spaces around the teeth are evident, this appearance being due to the fact that the bone bordering the tooth disappears first. The appearance of the hone shows that there has been a marked rarefying osteitis. Nodular deposits of calculus are present on the teeth, and it will he observed that these are, in the case of the incisors, canines, and premolars, well away from the margin of the bone. The skiagrams of this specimen are shown in Fig. 10. The cup-shaped absorption of the socket is well seen in the right first molar of the specimen illustrated in Fig. 11. Around the second molar the