摘要:

Durapatite particleswere employed along with autogenous bone chips to treat an extensive periodontal defect on a mandibular first molar which involved the bifurcation area and the distal root. Nine weeks after treatment the tooth was found to be cracked and was extracted along with tissue containing the grafted sites. The histologic specimen demonstrated that the ceramic graft particles were compatible with the periodontal tissues and showed no evidence of rejection or extrusion. They appeared completely encapsulated by connective tissue fibers while active Osteogenesis was noted on the bone fragments implanted with them. Cementogenesis and connective tissue attachment to the root were seen adjacent to the durapatite particles. This healing was believed to be related to the earlier surgical denudation of this portion of the root during treatment and was unrelated to the placement of the graft.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.455

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Free gingival autograftsstill remain the most predictable method for creating attached gingiva. However, a need exists for sources of connective tissue other than the patient's own connective tissue. Yukna et al. have proposed freeze‐dried skin (FDS) allografts as a substitute for gingival autografts. The purpose of the present study was to evaluate FDS allografts on humans, clinically and histologically. Ten FDS allografts and two free gingival (FG) autografts were performed on ten patients, two of them receiving both FDS and FG grafts. Clinical measurements were made before surgery, immediately after surgery and then 2 and 6 months after surgery. After 4 and 24 months, biopsies were performed on both FG and FDS grafts. Routine histologic staining was done. The results show a mean gain of attached gingiva of 0.32 mm with a range from 0 to 0.8 mm. Compared biopsies sections of FDS allografts and FG autografts show that the tissue obtained with the FDS allografts do not display the histomorphologic pattern of attached gingiva. The FDS allografts do not seem to represent a good substitute to free gingival autografts. However, they might be used successfully as a biological bandage.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.463

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

The clinical effectsof a periodontal dressing after modified Widman flap surgery were studied. A total of thirty surgical sites in 13 patients were included in the study. Half of the sites were not covered by a periodontal dressing while the other half were. To effect a blind evaluation, the dressings were placed and removed by someone other than the examiner. Gingival crevicular fluid flow and gingival inflammation were measured prior to surgery, 2 weeks, 1 month and 2 months after surgery. Clinical attachment level and pocket depth were measured prior to surgery, 1 month and 2 months after surgery. All patients were instructed in oral hygiene procedures and received rubber cup prophylaxes and flossing at 1 week, 2 weeks, 1 month and 2 months postoperatively. At the conclusion of the study, a questionnaire was administered to each patient. No significant differences were found between dressed and undressed segments regarding changes in clinical attachment levels, pocket depth, or gingival inflammation. The omission of a dressing did not result in a greater incidence of discomfort. More patients stated preference for no dressing.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.470

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Fifteen female subjectsundergoing treatment for nonspecific vaginitis with metronidazole 250 mg q.i.d. for 7 days were studied. Clinical and microbiological evaluations were carried out initially and at 2 and 4 weeks. The following parameters were measured in two quadrants: plaque index, sulcular bleeding index, pocket depth, attachment level and amount of gingival fluid. Dark field microscopy was used to quantitate the plaque constituents. One quadrant was subjected to root planing at the initial visit; the other quadrant received no therapy. No oral hygiene instructions were given. All the clinical parameters were significantly reduced in all areas. Gingival fluid, sulcular bleeding index and pocket depth showed greater improvement in the root‐planed quadrant compared to the nonroot‐planed quadrant. Dark field microscopy showed decreases in fusiforms, curved rods and spirochetes in all areas with a concomitant increase in cocci. The root‐planed quadrant showed no significant differences in microbiological aspects when compared to the nonplaned quadrant. Clinically, metronidazole therapy resulted in improvement of periodontal status with some additional but small enhancement due to root planing. Microbiologically, metronidazole dramatically changed the quality of plaque with no supplemental effect when root planing was added.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.476

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Six indexes of periodontal healthwere recorded in cigarette smokers, pipe/cigar smokers and nonsmokers from the Veterans Administration Dental Longitudinal Study. These indexes included calculus deposition, plaque accumulation, gingival inflammation, periodontal pocket depth, alveolar bone loss and tooth mobility. Cigarette smokers had significantly more calculus deposition than pipe/cigar smokers, although both smoker groups had more calculus than nonsmokers. Cigarette smokers accumulated slightly less plaque than pipe/cigar smokers, and both smoker groups accumulated less plaque than nonsmokers. Gingival inflammation and tooth mobility did not differ between smokers and nonsmokers, nor between the two smoker groups. Cigarette smokers had significantly greater pocket depth than nonsmokers, in contrast to pipe/cigar smokers who were not different from nonsmokers. Radiographic measurements indicated that cigarette smokers had significantly more alveolar bone loss than either pipe/cigar or nonsmokers. After covariance adjustment for age and calculus, all smokers had less plaque, gingival inflammation and tooth mobility than nonsmokers, similar periodontal pocket depth, but only cigarette smokers had greater bone loss. This finding of greater alveolar bone loss in cigarette smokers suggests a tobacco product‐related effect in systemic physiologic action.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.481

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

The purpose of this studywas to evaluate interexaminer and intraexaminer probing force variations in various regions of the mouth and adjacent to different tooth surfaces. Fiftyeight dental clinicians composed of 13 periodontists, 15 general dentists, 15 hygienists and 15 senior dental students probed the facial surfaces of periodontally healthy volunteers with a modified pressure‐sensitive periodontal probe. The forces used during probing were calculated and analyzed by analysis of variance andt‐statistics. There was wide variation in probing forces used by individuals within each clinician group. No statistical differences between the groups in mean probing force or absolute range of probing force could be detected. When pooled data were analyzed, it was found that the clinicians: (1) used probing forces ranging from 5 to 135 g, (2) probed in posterior regions with greater force than in anterior regions, and (3) probed midfacial, mesial and distal gingival units with different force. Midfacial regions were probed with the lightest force and distal regions with the heaviest force.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.488

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Acase is presenteddocumenting an apparent nonreactive squamous odontogenic proliferation of the rests of Malassez. The nonreactive nature of the tumor is discussed along with the possible association between this lesion and the recently reported squamous odontogenic tumor.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.493

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

The presenceof crevicular bleeding after probing is an objective clinical sign of gingival inflammation. It has been associated with a plasma cell‐dominated inflammatory infiltrate in deep pockets and has been suggested as an indication of active periodontitis. The purpose of this study was to characterize the cellular composition of gingival connective tissue associated with shallow pockets which bled after probing. Prior to biopsy, the mid‐facial gingiva associated with 30 teeth from 26 patients was assessed for the presence or absence of visual inflammation, pocket depth and bleeding after probing with a standardized force of 25 g. A horizontal reference incision was made on the facial aspect of the gingiva to demarcate for histologic analysis the specific gingival area probed and evaluated for inflammation. Cell populations were determined from histological sections using morphometric point counting techniques in six standard fields at and coronal to the level of the reference incision. The percentage of cell types and the per cent volume densities of all tissue components were compared between clinically normal and inflamed gingiva. In clinically inflamed gingiva there was a significantly greater percentage of lymphocyte/macrophage/monocyte cells and a smaller percentage of fibroblast/endothelial cells. The percentage of plasma cells was only a fraction of that found for other inflammatory cells. The results of this study indicated that a lesion in the gingiva associated with bleeding after probing can consist of an inflammatory infiltrate which is not dominated by plasma cells.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.497

出版商:Wiley    

年代:1983

数据来源: WILEY

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.8.502

出版商:Wiley    

年代:1983

数据来源: WILEY