摘要:

AbstractThe experiments were performed in six beagle dogs fed a soft diet which allowed dental plaque formation. During a pre‐experimental period of 7 weeks, periodontitis was induced by (1) surgically creating a bony pocket and (2) adapting a copper band to the exposed tooth surface. Two dogs were sacrificed at the end of this period and tissue sections were prepared for histological examination. In the remaining four dogs, trauma from occlusion was produced on the left mandibular fourth premolar by the installation of a cap splint and a bar device. The contralateral premolar served as a control.At the start of, and at regular intervals during, an experimental period of 180 days, tooth mobility, gingival inflammation and plaque accumulation were assessed. After sacrifice, radiographs were taken of test and control tooth regions and histological sections analysed regarding the width of the marginal periodontal ligament space and the degree of apical downgrowth of the gingival pocket epithelium.Only the test teeth showed a gradually increasing horizontal mobility, but gingival inflammation and Plaque Index scores were similar on test and control sides. Radiographs revealed (1) horizontal bone loss in both test and control areas, and (2) angular bone destruction only in test areas. Histological sections showed that the degree of apical proliferation of the pocket epithelium was more pronounced in test than in control region

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01234.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01235.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

AbstractDescription of a case of renal insufficiency. Demonstration in a series of radiographs from 1964–1972 of distinct changes in the radiodensity of the jaws and periodontium during the course of the disease and especially after its treatment by haemodialysi

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01236.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

AbstractFifteen abutment teeth with pathologic mobility were splinted with removable telescoped bridges. Mobility was measured at the time the splints were placed and at 1‐ and 12‐month intervals. Average mobility of the abutment and control teeth did not change significantly during the experimental per

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01237.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

AbstractA case of ‘pregnancy tumour’ associated with the administration of an oral contraceptive drug is described. The lesion was excised and adequate levels of oral hygiene maintained post‐operatively. No recurrence occurred throughout a further 21‐month period of hormone administration. The effect of the drug on the gingiva was dependent upon the presence of bacterial

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01238.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

AbstractComparable flap operations incorporating curettage and osteoplasties were performed in 17 patients on opposite sides of the same jaw on separate occasions. For one side a cover of phenoxymethyl penicillin 250 mg q.d.s. for 5 days commencing at the time of operation was given and for the other side a placebo was used.Healing was more advanced at 1 week after operation and there was less post‐operative discomfort during the first week when the penicillin cover was used. There was a tendency towards less facial swelling when penicillin was administered but the difference was not significan

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01239.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

摘要:

AbstractThe experiments were performed in 13 dogs; nine of the animals had initially a healthy periodontium and four had experimental periodontitis. Trauma from occlusion was created in all dogs according to a technique described previously. The dogs were sacrificed after 7, 14, 30 and 180 days of the experiment. Prior to sacrifice colloidal carbon was injected intravenously. The degree of vascular labelling and leucocyte infiltration as well as osteoclastic activity and the size of the marginal periodontal ligament were assessed in biopsy sections. The findings showed that dogs with a healthy periodontal lesion (Group A) differed in their reactions to a jiggling type of occlusal trauma when compared to dogs with an established periodontal lesion (Group B). Whereas the periodontal ligament in Group A had become adapted to the altered occlusion by the end of 6 months of experiment, that of Group B still showed increased vascular leakage, leucocyte migration and osteoclastic activity.

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01240.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1974.tb01241.x

出版商:Blackwell Publishing Ltd    

年代:1974

数据来源: WILEY