The Postgraduate Committee of Indiana University School of Dentistry announces the following short courses and symposia will be offered in 1965-66. All short courses will be held in the Dental School Building, and symposia in the Indiana State Board of Health Building.May 11, 1966: The Relationship of Occlusion to Periodontics. -This symposium will be presented by a guest lecturer and the Department of Periodontics staff. It will cover primarily the relationship and the role of occlusion and its adjustment in the patient with periodontal disease. January 12, 19, 26 and February 2, 9, 16, 1966: Periodontics. -The participants in this course will have lectures in the morning and will work on patients in the afternoon. The newer concepts of treatment will be demonstrated and the participants will also have the opportunity to use these methods. A guest lecturer will appear on one of the day's programs and will also offer a demonstration at that time. Fee, $1 50.00. July 23, 24, 1966: Modern Concepts of the Etiology, Prognosis and Treatment of Periodontal Disease. -There will be a guest lecturer. Fee, $75.00. For further information, write the Dean,

FREE MASTICATORY MUCOSA GRAFTS have been employed successfully for the surgical correction of selected mucogingival problems. 1-8 This report provides additional information about the predictability, technique and indications of free grafts and is based on clinical observations and photographic studies.Mucogingival problems usually can be managed successfully by moving gingiva or other masticatory mucosa in an apical, lateral or apicolateral direction by pedicle graft or repositioned flap procedures. 9-17 These procedures, however, require suitable masticatory mucosa in an area neighboring the mucogingival defect or defects. If the marginal or adjacent regions are unable to provide adequate donor tissue, the free graft operation offers the advantage of securing masticatory mucosa of desirable size and quality from other sites. TECHNIQUE Preparation of Recipient AreaPresurgical scaling should precede the graft operation by a minimum of one week. An apically positioned partial thickness flap is used to prepare a recipient bed consisting of periosteum and varying amounts of overlying connective tissue. The flap is separated from the underlying connective tissue by sharp dissection, and the flap margin is positioned and sutured apically to provide a host bed of desired size. This periosteal bed provides primitive but immediate and adequate nutrition for the graft and is an extremely important requirement for a successful take.If alveolar mucosa extends to the coronal edge of the marginal tissue or if periodontal pockets are present, the horizontal incision is initiated between the tooth and marginal tissue. If, however, the slightest amount of marginal tissue is firmly attached to the tooth, it may be retained by initiating sharp dissection at the coronal end of the movable alveolar mucosa.In preparing the recipient area, consideration must be given to muscle fibers which insert into the apical portion of the prepared bed. If these fibers are retained, the healed graft may move when tension is exerted on adjacent structures such as the lips or cheeks. This lack of firm attachment of the graft to the alveolar process can usually be prevented by dissecting close to the periosteum and by making an incision along the apical border of the recipient site. The incision is made at right angles to the alveolar process and is carried to the bone surface.The recipient area should be fully prepared before securing the donor tissue (Fig. 1). Securing Donor TissueDonor tissue may be taken from any location where adequate masticatory mucosa is available, including an edentulous ridge, a wide zone of attached gingiva, unattached gingiva which is being removed by a gingivectomy, or the palate. All of these areas have been used successfully; but the quality, and accessibility of donor tissue from the first three areas varies considerably among patients, whereas the palate consistently offers tissue with desirable features and in most instances is the donor site of choice.The graft size can be determined by measuring the length and wid...

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