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Lecture 13
Chapter 29
| Term | Definition |
|---|---|
| resective | procedures that simply cut away and remove some of the periodontal tissues |
| indications for perio surgery | provide access for instrumentation, reduce pocket depths, access to osseous defects, resect or remove tissues, regenerate the periodontium, graft bone, improve appearance, enhance prosthetic dental care, placement of implant |
| osseous defect | a deformity in the alveolar bone usually resulting from periodontitis. |
| relative contraindications | conditions that may make periodontal surgery inadvisable for some patients, i.e., uncontrolled high blood pressure |
| types of wound healing | repair, reattachment, new attachment, regeneration |
| repair | healing of a wound by formation of tissues that do not precisely restore the original architecture or original function of the body part, i.e., scar on finger; formation of a long junctional epithelium |
| reattachment | healing of a periodontal wound by the reunion of the connective tissue and roots where these two tissues have been separated by incision or injury but not by disease; i.e., need to move healthy tissue for access |
| new attachment | the union of a pathologically exposed root with connective tissue or epithelium where periodontitis previously destroyed the attachment |
| regeneration | the architecture and function of lost tissue is completely restored of lost cementum, perio ligament, and alveolar bone |
| degree of wound closure | primary intention, secondary intention, tertiary intention |
| primary intention | the wound margins or edges are closely adapted to each other, i.e., stitches in your finger |
| secondary intention | the margins or edges of the wound are not closely adapted (the 2 wound edges are not in close contact with each other). |
| tertiary intention | healing of a wound that is temporarily left open with the specific intent of surgically closing that wound at a later date. This type of healing is not a normal type of healing for perio procedures. |
| periodontal flap | incisions are made in the gingiva or mucosa to allow for separation of the surface tissues (epi & CT) from underlying roots and alveolar bone |
| elevation | this term is used to convey the concept of lifting the tissues away from the tooth roots and bone |
| full thickness flap or mucoperiosteal flap | includes elevation of entire thickness of the soft tissue including epi, CT, and periosteum revealing the bone |
| blunt dissection | the flap is lifted or pried up using periosteal elevators that are blunt to prevent damage to the flap |
| partial thickness flap | elevation of only the epi and thin layer of underlying CT rather than the entire thickness which would include the periosteum |
| sharp dissection | used for a partial thickness flap, requires incising the epi from the CT leaving the periosteal tissues covering the bone |
| nondisplaced flap | a flap that is sutured with the margin of the flap at its original position in relationship to the CEJ on the tooth |
| displaced flap | a flap that is sutured with the margin of the flap placed at a position other than its original position in relationship to the CEJ of the tooth |
| horizontal incisions | incisions that run parallel to the gingival margins in a mesiodistal direction |
| crevicular incision (sulcular incision) | surgical scalpel is carefully placed into the gingival crevice or sulcus and the tissues are incised apically to bone |
| internal bevel incision | surgical scalpel enters the marginal gingiva but is not placed directly into the crevice or sulcus; the blade enters the gingival margin .5 to 1.0 away from the margin and follows the general contours of the scalloped marginal gingiva |
| vertical incisions | incisions that run perpendicular to the gingival margin in an apicoocclusal direction |
| flap for access (modified Widman flap surgery) | to provide access to the tooth roots: tissue is incised and temporarily elevated from the tooth roots, provides excellent access for instrumentation and adaptation of healthy CT to the debrided tooth roots |
| open flap debridement | a periodontal procedure similar to the Widman's flap but with more extensive flap elevation to the roots and all alveolar bone defects |
| osseous resective surgery (periodontal osseous surgery) | having to do with surgery involving the alveolar bone |
| ostectomy | refers to removal of alveolar bone that is actually attached to the tooth |
| osteoplasty | refers to reshaping the surface of alveolar bone without actually removing any of the supporting bone |
| apically positioned flap with osseous resective surgery | surgical procedure involving a combination of a displaced flap plus resective osseous surgery |
| bone replacement graft | surgical procedure used to encourage the body to rebuild alveolar one hat has been lost usually as a result of periodontitis |
| osteogenesis | term used to describe the potential for new bone cells and new bone to form following bone grafting |
| osteoconductive | grafts where the grafting material form a framework for bone cells existing outside the graft to use to penetrate the graft during the formation of new bone |
| osteoinductive | grafts where the actual cells within the grafting material are converted into bone forming cells, and these cells then form the new bone |
| autografts | bone replacement materials taken from the patient who is receiving the graft |
| allografts | bone replacement grafts taken from individuals who genetically dissimilar to the donor (another human) |
| xenografts | bone replacement grafts taken from another species such as bovine bone |
| alloplasts | bone replacement grafts that are synthetic materials or inert foreign materials |
| guided tissue regeneration | periodontal surgical procedure employed to encourage regeneration of lost periodontal structures - cementum, PDL, alveolar bone; typically uses barrier membranes to delay rapid growth of epithelium |
| periodontal plastic surgery | surgery that is directed toward correcting problems with attached gingiva, aberrant frenum or vestibular depth |
| mucogingival surgery | surgical procedures that alter the relationship between gingiva and mucosa |
| free gingival graft | requires harvesting a donor section of tissue usually from the palate so there are two wounds: the donor site and the recipient site |
| subepithelial connective tissue graft | used to augment the width of attached gingiva and to cover areas of recession; uses connective tissue without the epithelium |
| laterally positioned flap | involves a displaced flap (laterally) taken from an adjacent tooth that is thick and healthy |
| coronally positioned flap | used to repair recession if it is not advanced |
| semilunar flap | used to repair recession if it is not advanced, used where the keratinized tissues have an adequate thickness |
| frenectomy | removal of a frenum including removal of the attachment of the frenum to the bone |
| crown lengthening surgery | surgery designed to create a longer clinical crown for a tooth by removing some of the gingiva and usually by removing some alveolar bone from the necks of the teeth |
| functional crown lengthening | crown lengthening performed on a tooth where the remaining tooth structure is inadequate to support a needed restoration |
| esthetic crown lengthening | crown lengthening performed on teeth to improve the appearance of the teeth where there is excessive gingiva or a "gummy smile" |
| gingivectomy | procedure designed to excise and remove some of the gingival tissue |
| gingival curettage | procedure that involves an attempt to scrape away the lining of the pocket usually with a periodontal curette |
| periodontal microsurgery | periodontal surgery performed with the aid of a surgical microscope |
| periodontal dressing (periodontal pak) | protective material applied over a periodontal surgical wound |