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1 School of Dentistry, Georgetown University, Washington, D. C.
1. The preparation of an improved microantimony electrode is described.
2. The mean pH of periodontal pockets in chronic periodontitis was found to be 7.09 ± 0.07 with no significant variation related to the depth of the pocket.
3. A semimicro analysis of tissue for glycogen is described.
4. The mean glycogen content of normal gingival tissue was found to be 0.185 ± 0.031 per cent.
5. The glycogen content of tissue adjacent to periodontal pockets was found to vary inversely with the depth of the pocket, the tissue associated with the shallowest pockets having a higher glycogen content than normal tissue. The tissue associated with the deep pockets has a glycogen content in the same range as normal tissue.
Submitted on June 1, 1953
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