ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01845.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01846.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

AbstractA clinical study of the distribution of different types of bone defects in chronic pertodontitis was carried out on 30 patients. An analysis of 176 defects suggests that their distribution reflects the original morphology of the alveolar bone. The role of function as a determinant of that morphology is examined. While there appears to be a relationship between functional stress and the phylogenesis of the bone, there is no direct relationship between function and ontogenesis. A study of growth remodelling of the mandible in several animals indicates that the pattern of activity is dictated by a drive to achieve a mature form which is the expression of the genetic endowment. Normal function and normal muscle stress are part of the environment in which complete growth can take place, but they do not appear to play a more active role in determining the form of growth; abnormal function does not allow normal growth to take place.The relationship between functional stress and the morphology and activity of the mature bone is not clear.Osteoporosis of age, as measured by the metacarpal index in 101 patients with chronic periodontitis, did not appear to be significantly related to the bone loss score. However, in 54 female patients, aged 35–45 years, a significant correlation was found between the metacarpal index and a “rapidity of bone loss”

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01847.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

AbstractNew attachment procedures were performed in 80 three‐wall intrabony defects produced adjacent to incisors and canines in monkeys. Following a reverse bevel incision, rnucoperiosteaS flaps were raised on the buccal and lingual aspect of 40 intrabony defects, AH soft tissue was removed from the defects and following transplantation of autogenous bone grafts, the tissue flaps were replaced and sutured. On the buccal and lingual aspect of another 40 intrabony defects a split flap procedure was performed. Granulation tissue was removed from the defects and following transplantation of autogenous bone grafts, the defects were covered with free palatal grafts.The animate were sacrificed (o yield observation periods from 0 to 42 days. After de‐caicification of the specimens and embedding in paraffin, 8‐μm serial sections were cut and stained. The epithelium on the full thickness flap seemed almost unaffected by the surgical procedure and had migrated between 0.2 mm and 2.0 mm along the root surface during the first week of healing. The epithelium on the transplants degenerated almost completely within the first week after surgery and epithelial migration along the root surface was not observed until after 10–12 days.These results indicate that the migration of epithelium during the postoperative phase of new attachment attempts can be retarded by covering the defects with free palatal grafts instead of full thickne

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01848.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

AbstractA clinical trial was undertaken to test the hypothesis that periodontitis can be cured and that bone regeneration occurs in infrabony pockets in patients maintained on an optimal standard of oral hygiene.The material comprised 24 patients with advanced periodontal disease. After an initial examination, the patients were randomly distributed into one test group and one control group. All the patients were given instruction and practice in a proper oral hygiene technique, and then subjected to periodontal surgery using the modified Widman flap procedure. Following treatment, during a 2‐year period the patients of the test group were recalled once every second week for professional tooth cleaning. The control patients were recalled once every 12 months for prophylaxis.The results showed that all osseous defects of the patients of the test group were refilled with bone. The control patients, on the other hand, could not maintain a high standard of oral hygiene, and exhibited a progressive deterioration of the periodontal tissues during the postsurgical observation tim

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01849.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

AbstractThis report describes the osseous repair of an infrabony pocket without new attachment of connective tissue between the new bone and root surface. While the width of the connective tissue between the new bone and root surface was of approximately normal dimensions, junctional epithelium was present on the root surface.

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01850.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

AbstractThe clinical results achieved were compared when a group of 21 patients requiring gingivectomies in comparable bilateral segments received a dressing or a chlorhexidine mouthwash during the first post‐operative week. Initial pre‐operative conditions were comparable. In each of the two treatments highly significant reductions in pocket depths were achieved; the sizes of the reductions were of clinical significance (>1.5 mm). The observed difference (0.16 mm) between the two treatments in favour of the mouthwash, although significant at the conventional 5 % level, was clinically unimportant. More patients preferred the dressing as a post‐operative treatment, and the clinical implications of the patients' preferences are disc

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01851.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

AbstractTwenty‐seven proprietory periodontal dressings were applied to the lower labial segments of 18 subjects showing low levels of gingival inflammation when assessed by the Gingival Index system at the time of application. Specimens of each dressing type were subsequently removed at intervals ranging from 3 h to 5 days. The material adhering to the deep surface of the dressing was examined by light, transmission and scanning electron microscopy and was shown to be a complex heterogeneous structure consisting of large intact epithelial cell sheets and oral bacteria in a proteinaceous matrix. Possible mechanisms which could contribute the epithelial cell and protein components to this structure were discussed. It was concluded that the dressings themselves caused little damage to the normal periodontium but could be associated with increased levels of inflammation at longer time intervals because of bacterial growth. The significance of these findings to current clinical practice is discusse

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01852.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1976.tb01853.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY