An attempt was made to promote the growth of new cartilage from a free perichondrial graft placed in a defect made in the canine cricoid cartilage. Three dogs had the perichondrial grafting alone, while two had both the perichondrial grafting and a full thickness buccal mucosal graft. In all these dogs new cartilage was found as early as four weeks postoperative.
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Rice et al. (1978) studied this question.
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