Pool expansion ‐ a method for measuring in vivo collagen production that involves injection of excess unlabeled proline along with [3H]proline ‐ was used to calculate the values for collagen half‐life in rat: incisor and molar periodontal ligament, molar gingiva and palatal mucosa. Collagen in most periodontal tissues (except for incisor gingiva) turns over more rapidly than skin collagen. The results reaffirm the concept that collagen in most periodontal tissues turns over with unusual rapidity.
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Imberman et al. (1986) studied this question.
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