Vet360 Vet360 Vol 05 Issue 05 | Page 28

DENTISTRY Periodontal nomenclature An alveolectomy is the removal of some or all of the alveolar bone. An alveoloplasty is a form of alveolectomy performed to restore physiological contours or achieve smooth contours of the alveolar bone. An apically positioned flap is moved apical to its original location. An envelope flap is retracted away from a horizontal incision; there is no vertical incision. Closed periodontal debridement involves the removal of damaged, infected, inflamed or necrotic tissue from periodontal pockets and dental deposits from the tooth surface without the creation of a flap; this includes gingival curettage (or excisional new attachment procedure) and root planing. A coronally positioned flap is moved coronal to its original location. Gingival curettage refers to the removal of damaged, infected, inflamed or necrotic tissue from the soft tissue lining of a periodontal pocket. Gingival enlargement is a clinical term referring to the overgrowth or thickening of gingiva in the absence of a histological diagnosis. A gingival flap contains gingiva. attachment loss (Figure 3A and 3B). The resultant pseudopocket accumulates plaque and calculus, which, if left untreated, may progress to attachment loss. Surgical treatment, including gingivectomy and gingivoplasty, is performed using a scalpel blade, laser or radiosurgery to sculpt the gingiva and decrease or eliminate the pseudopockets. What to do when you find a pocket The goal of periodontal therapy is to decrease the size of or eliminate pockets in cases of early and moderate periodontal disease by removing subgingival plaque and calculus, using locally applied antimicrobials, performing gingivectomy, or extracting the affected teeth. Extraction is indicated when more than half of the root is not supported by the periodontium. Subgingival cleaning: ultrasonic scaling. Bacteria-coated calculus left on the root surface contributes to the progression of periodontal disease. In order for the ultrasonic scaler to therapeutically débride a periodontal pocket, it needs to contact every part of the accessible root surface. Using ultrasonic thin periodontal tips specifically manufactured for root surface use, place the scaler tip’s side parallel to the long axis of the tooth, similar to positioning a diagnostic periodontal probe. To avoid iatrogenic damage, decrease the power and increase the amount of water Gingival hyperplasia is a histological term referring to an abnormal increase in the number of normal cells in a normal arrangement resulting in clinical gingival enlargement. Gingival recession refers to root surface exposure caused by apical migration of the gingival margin or loss of gingiva Gingivectomy refers to removal of some or all gingiva surrounding a tooth. Gingivoplasty is a form of gingivectomy performed to restore physiological contours of the gingiva. A mesiodistally or distomesially positioned flap is moved distal or mesial to its original location along the dental arch; this flap has also been called a laterally positioned flap. Open periodontal debridement is the removal of damaged, infected, inflamed or necrotic tissue from periodontal pockets and dental deposits from the tooth surface after flap creation; this includes the removal of affected gingiva and granulation tissue upon flap creation and management, root planing, and osseous resective procedures such as an alveolectomy and alveoloplasty. A periodontal flap contains gingiva and alveolar mucosa. Root planing refers to the removal of dental deposits from and smoothing of the root surface of a tooth; it is described as closed when performed without a flap and open when performed after flap creation. Figure 4: An air/water syringe is used to show plaque and calculus not removed during scaling and polishing irrigation to remove subgingival plaque and calculus. After you’ve completed ultrasonic tooth scaling, use an air/water syringe to gently blow the gingival margin away from the tooth and examine the tooth surface for remaining plaque and calculus to remove (Figure 4). You can then use water from the air/water syringe to lavage unattached debris from the sulcus or pocket. Subgingival cleaning: curette-assisted root planing. The goal of root planing is to make the root less vet360 Issue 05 | NOVEMBER 2018 28 Issue 04 | | AUGUST 2017 28