ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01944.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractA split‐mouth double‐blind trial was designed to compare the effects of chlorhexidine and placebo gels during the healing phase following mucogingival flap surgery.Fifteen patients were treated with 30 inverse bevel flap procedures, one on each side of the maxilla, with an interval of 4 weeks between each procedure. Gel was applied to the gums using a toothbrush once daily.Comparison of results revealed no significant differences in Plaque Index, Gingival Index, crevicular fluid or depth of pockets. More pain and swelling were recorded on the side treated with placebo gel, and more patients indicated that they preferred the chlorhexidine gel. The results were comparable to previous investigations using penicillin and suggest that, because of the reduced pain and swelling, chlorhexidine gel may be a suitable alternative to penicillin after periodontal flap surg

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01945.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractThe aim of this study was to compare the periodontal probing depth in teeth exposed to pariodontal treatment with teeth having received no treatment. In pockets deeper than 4 mm, a significant difference was found between the two groups. In the non‐treated teeth, metal strips used for probing penetrated an average of 0.29 mm into the connective tissue apical to the junctional epithelium. The average probing depth for teeth exposed to scaling, root planing, curettage and chlorhexidine rinses for 1 month was 0.31 mm coronal of the connective tissue attachment within the junctional epithelium. The results indicate that care should be taken when evaluating changes in periodental probing measurements during longitudinal studie

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01946.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractResults following three modalities of periodontal therapy (subgingival curettage, modified Widman flap surgery, and pocket elimination or reduction surgery) in 78 patients over 8 years were compared for variations in pocket depth and clinical attachment level related to tooth types (maxillary molars, mandibular molars, maxillary biscupids, mandibular biscupids, maxillary anterior teeth, mandibular anterior teeth). The analysis was based on a classification of three severity groups according to initial crevice or pocket depth (Class I, 1–3 mm; Class II, 4–6 mm; and Class III, 7–12 mm) and with patient's means of measurements being the experimental units for the statistical analysis.Reduction in pocket depth and gain of clinical attachment for pockets 4 mm or deeper occurred following all three methods of treatment, and was well sustained over 8 years. No one modality of treatment was consistently superior to any of the other two with regards to sustained reduction of pocket depth and gain of clinical attachment.Surgical pocket elimination or reduction did not enhance the prognosis for maintenance of periodontal support in either moderate or advanced periodontal lesions anywhere in the mouth compared with more conservative modalities of treatment.In spite of prophylaxis and instruction in home care every 3 months, there was a slight progressive loss of attachment over time in areas of shallow crevices (1

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01947.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractThe microflora of periodontal pockets and some histopathological characteristics of adjacent tissues from individuals with clinical signs of juvenile periodontitis were studied. Adult individuals with ordinary, rapidly advancing periodontitis served as controls. All of the patients had been referred for specialist treatment. Using criteria defined by Baer (1971), the patients were assigned to onejuvenile periodontitis(eight patients), onepost‐juvenile periodontitis(seven patients) and oneadult periodontitisgroup (seven patients). Only lesions around the first molars and central incisors were studied. Bacterial samples were obtained from each site and were examined by darkfield microscopy and different morphological forms identified. The soft tissue of the diseased sites was excised. The biopsies were placed in a fixative, cut in 1‐mm‐thick blocks and embedded in Epon. In semithin sections the infiltrated connective tissue (ICT) was identified and the ICT portion further processed for electron microscopy. The numeric and volumetric densities of different cells and structures of the ICT were determined using a morphometric point‐counting procedure.The results showed thatjuvenile periodontitislesions are associated with a subgingival microflora, the composition of which is different from that ofadult periodontitis.Thus, in patients belonging to theadult periodontitisandpost‐juvenile periodontitisgroups, motile microorganisms dominated the subgingival plaque samples, whereas deep pockets injuvenile periodontitislesions contained a flora dominated by coccoid cells and straight non‐motile rods.The most pronounced difference in the composition of ICT between thejuvenileon one hand and thepost‐juvenileandadult periodontitislesions on the other, was related to the amount of extracellular structures. Thus, inpost‐juvenileandadult periodontitislesions, collagen and residual tissue made up around 50% of the infiltrate. In thejuvenile periodontitislesions, however, extracellular structures occupied only around 20% of the volume. In the ICT of thejuvenile periodontitissites, around 70 % of the volume was occupied by plasma cells and blast cells. The corresponding figures for thepost‐juvenileandadult periodontitssite

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01948.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractAdhesion to enamel is an important aspect of periodontal dressing retention. Details of tensile and shear bond strengths are presented for three dressing materials and a positive polycarboxylate control, and the data are discussed with regard to optimum levels of retention. A level of 2 MN/m2is suggested for shear bond strength, and 1 MN/m2for tensile bond strength, under the test conditions employed.

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01949.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1980.tb01950.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY