ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00915.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractHealing following non‐surgical periodontal therapy was studied and the results of instrumentation performed by 6 operators compared. Incisors, cuspids and premolars with periodontal pockets up to 11 mm deep in 20 patients were treated by plaque control and a single episode of supra‐ and subgingival debridemem. A split‐mouth approach was used to compare the participating therapists. The effects of the therapy were monitored using changes in plaque score, bleeding score, probing pocket depth and probing attachment level. Marked improvement, similar to that seen in previous studies evaluating non‐surgical therapy was noted during the initial 6–9 months. No further changes of the recorded parameters could be observed during the rest of the 24‐month observation period. Differences between sites treated by the various operators were negligible. Thus, it appears, that deep periodontal pockets in incisors, cuspids and premolars may be successfully treated by plaque control and 1 episode of instrumentation and that operator variability may

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00916.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Abstract17 antibiotics, with potential for topical use, were tested for their activity against the human oral flora. Concentrations (μol/1) required to inhibit 90% of test strains are presented and drug activities are compared. The total cultivable oral flora was susceptible to the tetracyclines including tetracycline itself, minocyline, doxycyline, and oxytetracycline and to erythromycin. On the other hand, actinobolin, kanamycin, neomycin, streptomycin, spiramycin, tythricin, vancomycin, clindamycin, and chloramphenicol were ineffective against may of the human oral anaerobic bacteria even at high concentration. Penicillin was effective at high concentrations but could not be recommended because organisms which are not inhibited by low concentrations are penicillinase producers. Carbenicillin was effective against all organisms exceptActinobacillus actinomycetemcomitans.The gram‐negative organisms involved in adult periodontitis were most susceptible to the tetracylines, tyrothricin, carbenicillin and clindamycin, while those associated with localized juvenile periodontitis were susceptible to the tetracylines or erythromycin. These data, combined with the previous findings that some teracylines exhibit marked to good choices in the treatment or prevention of oral diseas

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00917.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractThe aim of the present investigation was to study the validity of 2 different methods of sampling the subgingival microbiota. The composition of the flora was estimated using the dark‐field microscope. Subgingival samples were obtained using either a curette or a Hamilton microsyringe for a subgingival washing. The method of determination of the composition of the subgingival microorganisms was found to be very reproducible when the same investigator performed the counting.Samples obtained by the washing technique had a slight but significantly higher proportion of coccoid cells when compared to samples obtained by curette. The calculation of the reproducibility of the washing technique as assessed in 6 immediately repeated samples from the same sites yielded a coefficient of variation of 40% for spirochetes and motile rods.When 9 repeated samples from each of 28 sites (14 with a curette, 14 with washing) were studied over a period of 32 days, no systemic alterations were observed in the % of spirochetes and motile rods. The variation within each individual site was high. For curette samples and washing samples, the coefficients of variation for spirochetes and motile rods were 85% and 63%, respectively. The present investigation clearly demonstrated that care should be taken in the interpretation of single samples of subgingival microbiota. A more relevant picture of the actual situation is achieved when trends of repeated samples over time are studie

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00918.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractComponents of variance and intraclass correlation coefficients were computed for changes in attachment level, pocket depth, gingival and plaque index scores for 5 groups of treated periodontal disease patients and 1 group of untreated subjects with periodontal disease. The intraclass correlation coefficients for attachment level change ranged from 0.011 to 0.165 (median 0.067), while intraclass correlation coefficients for pocket depth changes ranged from ‐0.009 to 0.178 (median 0.071). These intraclass correlation coefficients were much lower than those computed for changes in measurements of plaque which ranged from 0.086 to 0.568 (median 0.268) or gingival inflammation which ranged from 0.119 to 0.522 (median 0.264). Intraclass correlation coefficients at baseline for pocket depths ranged from 0.000 to 0.199 (median 0.053). for plaque accumulation from 0.121 to 0.531 (median 0.222) and for gingival inflammation from 0.229 to 0.596 (median 0.391). The differences in the intraclass correlation coefficients between packet depth and attachment level on the one hand and plaque accumulation or gingival inflammation on the other could not be explained on the basis of differences in the measurement scale employed, since collapsing measurement scales had little effect on the intraclass correlation coefficients.The observed larger intraclass correlation coefficients for changes in plaque and gingival indices suggest a larger rôle for host contribution to these measurements. In contrast, the data suggest that the major but by no means the sole factor determining the variability of attachment level or pocket depth changes is the nature of the local facto

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00919.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

Abstract69 adults ranging in age from 20 to 73 (mean age: 37) were randomly assigned to a control (C) and a test (T) group. Of these, 61 completed the 3‐year longitudinal study. All subjects had varying degrees of gingivitis at the start, but no overt periodontitis. Following a base line examination for PII, GI, probing depth (PD) and recession, a differential darkfield microscopic (DDFM) count of subgingival bacterial morphotypes was carried out on a pooled sample originating from one tooth surface in each sextant with the greatest probing depth. Examinations were repeated every 6 months for 3 years. The C group received regular prophylaxes every 6 months. The T subjects received prophylaxes according to a previously described schedule, and on the basis of the DDFM test outcome.Recall intervals at the end of the study for the T group ranged from 1 to 24 months (mean: 15.7 months). Of 30 subjects in the T group at the end of the study, one half had not had their teeth cleaned for periods of 18 to 36 months without any detectable deterioration in their periodontal status by comparison with the other T subjects or the patients in the C group. Both C and T subjects exhibited increased mean PII and GI scores as compared to base line during the first half of the study. However, mean PD measurements remained unchanged.Increases in PD from base line of 3 mm or more were observed only in approximately 1 out of a 1000 individual tooth surface comparisons, a frequency comparable to that expected to occur by chance alone. This observation indicates that in this population, little if any pocket formation occurred during the study period. GI score increases of 2 units or more occurred in relatively few subjects. 2 of 31 C patients accounted for 42 of the affected dental units, while 5 out of 30 T subjects accounted for 40.8 % of the affected dental units in that group. These observations suggest that despite the relatively high prevalence and incidence of gingivitis, the subjects were relatively resistant to periodontitis. Neither preventive schedule was effective in eliminating gingivitis. The lack of significant destructive disease in this population prevented any meaningful comparison of the relative effectiveness of the two preventive maintenance regimens in preventing recurrences of periodontiti

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00920.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractThis study compared the healing response, following reconstructive surgery, between teeth subjected to periodic displacement and teeth which were splinted during the postoperative healing period.Through‐and‐through furcation defects were created in the mandibular second, third, and fourth premolars of 6 beagle dogs. Bone was surgically removed from the furcation and around each root to 3 different levels: 3, 6, and 9 mm. Reconstructive surgery included demineralization of the root surface and coronally positioned flaps. During the postoperative healing period, the premolars on one side were subjected to periodic mesiodistal displacement by orthodontic elastics attached to splints. Corresponding teeth on the contralateral side were splinted to serve as non–mobile controls.The results demonstrated that reattachment occurred in 12 of 14 displaced teeth and in 14 of 16 splinted teeth. There was no difference in the amount of interradicular bone fill or frequency of ankylosis between displaced and splinted teeth.Our findings indicate that the healing response was not affected by tooth displacement in this dog furcation

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00921.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

AbstractA total of 183 students, ages 12–16, were examined clinically to determine periodontal attachment loss by a trained examiner, utilizing standard techniques. 70 of these were selected, for whom bitewing radiographs were available for assessment of early alveolar bone loss by 2 radiologists and a general dentist, utilizing 4 criteria. The results indicate poor agreement between clinical and radiographic diagnoses by the 3 examiners. Variations were also found in the diagnosis of pathologic sites utilizing radiographs. The data indicate that bitewing dental radiographs were a poor screening or diagnostic procedure for the assessment of early periodontal disease in adolescent

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00922.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1985.tb00923.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY