摘要:

AbstractA case in which intermittent and spontaneous periodontal breakdown and repair has occurred on two different occasions in the same interproximal site over a period of 18 years is described. The possible etiology of the lesions is discussed in terms of current concepts of localized bacterial selectivity. Also reviewed is the potential for repair in two‐walled infrabony defect

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00893.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractThe periodontal condition of a well‐described group of cirrhotic patients was compared with that of a control group, matched forage, sex ratio and socio‐economic background, expressed as years of education. The test group comprised 30 cirrhotic patients, 35–64 years of age. The diagnosis cirrhosis of the liver was confirmed histologically, and no other systemic diseases were present. The material was grouped according to age, 35–44, 45–54 and 55–64 years of age. The examination included determination of tooth loss, a plaque index, a gingival index, retentive calculus, retentive decay and fillings, and loss of attachment. The amount of plaque was equal in test and control groups, whereas the cirrhotics had a higher degree of severity of gingival inflammation as well as a greater amount of subgingival calculus than the controls. Test and control groups exhibited no significant difference as regards loss of attachment and tooth loss, and similar correlations between loss of‐attachment and age were demonstrated in the two groups. Patients suffering from cirrhosis for more than 3 years showed significantly greater loss, of attachment, as well as more plaque and calculus compared with those with a disease duration of less than 3 years. It is suggested that this aggravation of the periodontal condition is related to increasing neglect of the teeth, as the cirrhotic conditi

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00894.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractCitric acid conditioning of the root surface as a supplement to replaced flap surgery of intraosseous periodontal defects was evaluated, Thirteen patients and a total of 45 proximal defects with residual probing pocket depth ≥ 6 mm after initial preparation were used. The effect of treatment was studied in matched subsamples of the total material including one acid‐treated and one nonacid‐treated defect from each subject, The results demonstrated that an average gain of probing attachment level amounting to 2.0 mm was obtained following acid treatment as compared to 1.l–1.2 mm for the nonacid‐treated controls. Corresponding figures for gain of probing bone level were 1.2–1.3 mm for acid treatment and 0.8–0.9 mm for controls. The clinical significance of these findings

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00895.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractIn the present study, radiographs of a model simulating several degrees of alveolar bone height were taken at different vertical projection angles. Bone height was measured by three examiners utilizing a projection technique similar to that originally employed by Björn et al. (1966, 1969). Correlation coefficients of inter‐ and intra‐examiner readings were found to be statistically significant. The 95% confidence interval of the mean deviation between the observed bone height and the true bone height was less than 5.5 %. Further investigations are planned to determine whether this method of quantitating the information on radiographs exposed under various conditions is applicable in clinical prac

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00896.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractThe importance of malposition of teeth and plaque accumulation is still not established. The purpose of this study was. to measure plaque accumulation on individual malpositioned teeth for comparison with contralateral nonmalpositioned teeth. Furthermore, the distribution of plaque in the anterior segments was measured and compared between aligned and nonaligned segments and the total mouth plaque score. Plaque scores and contact point indices were recorded from a total of 87 subjects of which 20 were drawn from dental and ancillary students and 67 from randomly chosen patients. For anterior teeth, in both groups significantly more plaque accumulated on malpositioned teeth compared with contralateral nonmalpositioned teeth. For the right‐handed subjects (83), mean plaque scores for malpositioned teeth were greater than for nonmalpositioned teeth whether the malpositioned tooth was on the right or left of the anterior segment. This difference was significant in the patient group. The contact point index of the anterior segments correlated only with plaque accumulation in those subjects with a plaque index of less than 1. Upper and lower anterior segment plaque scores correlated with total mouth scores in both groups. However, the upper anterior segment scores had significantly less plaque than the total mouth score irrespective of the presence or absence of tooth malalignment, whereas the lower anterior segment always had significantly higher plaque scores than the total mouth score, irrespective of the presence or absence of malalignment. Finally, lower segments, whether aligned or malaligned, had significantly more plaque than upper anterior segments which were aligned or malaligne

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00897.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractThe incidence and distribution of alveolar fenestrations and dehiscences and their association with root prominence and occtusal faceting were investigated in 87 dry Bedouin jaws derived from the region of the southern Negev. Fenestrations were most frequently found in maxillary molars and canines and mandibular canines and lateral incisors. Dehiscences were most consistently observed in mandibular canines and first premolars. Maxillary fenestrations were consistently found in the apical half of the root length as were 60% of mandibular fenestrations.

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00898.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractTo study the salivary response in asthma and periodontitis, calcium and phosphorus concentrations were determined from parotid and whole saliva. The IgE and histamine concentrations and the activities of lysozyme and arginine aminopeptidases were assayed from whole saliva. The values were compared with those obtained from matched healthy controls (n = 20 in each group).In whole saliva the phosphorus concentrations were elevated in the asthma group and the calcium concentrations in the periodontitis group. Regarding parotid saliva no significant differences between the group? were observed.The results indicate that in patients with asthma the IgE concentrations in whole saliva were elevated, while in patients with periodontitis and in healthy controls no detectable values were obtained.Both histamine and lysozyme concentrations seemed to increase in the asthma and periodontitis groups. A slight increase was also observed in the arginine aminopeptidase activities in the saliva of patients with asthma and patients with periodontitis.

ISSN:0303-6979    

DOI:10.1111/j.1600-051X.1981.tb00899.x

出版商:Blackwell Publishing Ltd    

年代:1981

数据来源: WILEY