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Biomedical subjects

J Dock

Publications and source records attributed to J Dock.

8 recordsLinked to original sources
PubMed2000

Exposure to tobacco smoking and periodontal health.

BACKGROUND: The influence of smoking behavior on the periodontal health condition was clinically and radiographically studied in 257 dentally aware adults in the age range 20-69 years, including 50 current smokers, 61 former smokers and 133 non-smokers. AIMS: The clinical variables to be investigated were frequency of diseased sites > or =4 mm, frequency of gingival bleeding sites and plaque index. In addition, the periodontal bone height was radiographically assessed as a % of the dental root length. METHODS: All variables were based on full-mouth examinations including all teeth and periodontia. RESULTS: The observations indicated an inferior periodontal health condition associated with smoking. This was evidenced by a significantly greater frequency of diseased sites and a significantly greater reduction of periodontal bone height in current smokers as compared to non-smokers. The condition of former smokers was intermediate between current smokers and non-smokers, suggesting that former smokers who have quit smoking have a better periodontal health condition than current smokers, although worse than that of non-smokers. The finding that former smokers exhibited less disease than current smokers suggests that smoking cessation may be beneficial and mitigate the untoward effects inflicted by smoking, allowing a normalization towards non-smoker conditions. Heavy exposure was consistently associated with more severe a condition than light exposure, suggesting that the relationship between smoking exposure and periodontal morbidity is dose-dependent. CONCLUSIONS: Altogether, the present observations identify a negative impact from smoking on periodontal health and provide further evidence that tobacco smoking is an avoidable risk for periodontal disease.

Adult↗
PubMed2000

A 10-year prospective study of tobacco smoking and periodontal health.

BACKGROUND: To date only a few studies have evaluated the long-term influence of smoking and smoking cessation on periodontal health. The present study, therefore, was undertaken with the aim to prospectively investigate the influence of smoking exposure over time on the periodontal health condition in a targeted population before and after a follow-up interval of 10 years. METHODS: The primary study base consisted of a population of occupational musicians that was investigated the first time in 1982 and scheduled for reinvestigation in 1992 and 2002. The 1992 investigation included 101 individuals from the baseline study constituting a prospective cohort including 16 smokers, who had continued to smoke throughout the entire length of the 10-year period; 28 former smokers who had ceased smoking an average of approximately 9 years before the commencement of the baseline study; 40 non-smokers, who denied ever having smoked tobacco; and 17 individuals whose smoking pattern changed or for whom incomplete data were available. The clinical and radiographic variables used for the assessment of the periodontal health condition of the individual were frequency of periodontally diseased sites (probing depth > or =4 mm), gingival bleeding (%), and periodontal bone height (%). The oral hygiene standard was evaluated by means of a standard plaque index. RESULTS: The changes over the 10 years with respect to frequency of diseased sites indicated an increased frequency in continuous smokers versus decreased frequencies in former smokers and non-smokers. Controlling for age and frequency of diseased sites at baseline, the 10-year change was significantly associated with smoking (P <0.001). The differences between current smokers and non-smokers, and between current and former smokers, respectively, were statistically significant (P<0.001). Moreover, the 10-year change increased significantly with increasing smoking exposure controlling for age (P= 0.01). In terms of periodontal bone height, the 10-year changes implied statistically significant reductions within current as well as former smokers (P <0.001 and P <0.05, respectively), but not within non-smokers. The overall change was significantly associated with smoking controlling for age and bone height level at baseline (P<0.01), including statistically significant differences between current smokers and non-smokers and between current and former smokers, respectively (P<0.05). Moreover, the 10-year bone height reduction increased significantly with increasing smoking exposure controlling for age (P <0.05). With regard to gingival bleeding, the 10-year differences between smoking groups were not statistically significant. Plaque index remained low throughout in all smoking groups at an overall average level of about 0.8. CONCLUSIONS: The results suggest that periodontal health is compromised by chronic smoking as evidenced by an increase of periodontally diseased sites concomitant with loss of periodontal bone height, as compared to non-smokers whose periodontal health condition remained unaltered throughout the 10-year period of investigation. The periodontal health condition in former smokers, similar to that of non-smokers, remained stable, suggesting that smoking cessation is beneficial to periodontal health.

Adult↗
PubMed1999

Pulsed dye laser therapy for sun damaged skin.

OBJECTIVE: The objective of this study was to evaluate the effectiveness of the pulsed dye laser (585 nm, 450 ms) in the treatment of sun induced wrinkles. DESIGN: Patients had one pulsed dye laser (585 nm) treatment. The treated areas were assessed by the following methods: grading of skin wrinkles at 6 weeks, 12 weeks, and 6-14 months after treatment by blinded observers and by light and electron microscopy. SETTING: An ambulatory care center at Abbott Northwestern Hospital (ANH) and the Laser & Skin Surgery Center of Northern California (LSSCNC). PATIENTS: Twenty patients were treated, half with mild to moderate and half with moderate to severe sun induced skin wrinkles. RESULTS: At last follow up 90% (9/10) of the mild to moderate wrinkles and 40% (4/10) of the treated patients with moderate to severe wrinkles had clinically observable improvement in their sun induced skin wrinkles. Histologic examinations of the treated areas showed a superficial dermal band of well organized elastin and collagen fibers replacing pre-treatment elastic tissue. Increased cellularity and mucin deposition was consistent with dermal collagen remodeling.

Adult↗
PubMed1996

Quality of life as a measure of rehabilitation outcome in patients with multiple sclerosis.

A total of 43 patients with multiple sclerosis (MS) consecutively admitted to the Multiple Sclerosis Rehabilitation Hospital in Haslev completed a Danish version of the Laman & Lankhorst Questionnaire (LLQ) on quality of life (qol), and the Beck Depression Inventory (BDI). Twenty-one of the 43 pts completed the questionnaires at discharge as well. All patients received the standard multidisciplinary rehabilitative treatment. The purpose was to evaluate the LLQ as a measure of qol and as an outcome measure. The 43 MS-patients had low weighted qol scores on the following items: readily tired, fatigue, dependence on other people, worry about deterioration and walk. Correspondingly, the BDI showed high scores on fatigability, work difficulty and somatic preoccupation. The correlation between LLQ and BDI was statistically significant (0.54, p < 0002), but weak. ANOVA with repeated measures (LLQ and BDI at admission and discharge) was applied to evaluate rehabilitation outcome in 21 patients. LLQ: The patients experienced a significant reduction in disability on fatigue and mood; and in the importance of being able to climb stairs and to work. The weighted qol-scores increased significantly on physical endurance, work and mood. BDI scores showed a significant decrease on pessimism, irritability, loss of libido and total BDI-score. The changes measured by the LLQ were mainly on behavioral aspects. As the correlation coefficient was only 0.54, the LLQ and the BDI seem to address different aspects of quality of life.

Activities of Daily Living↗
PubMed1975

Grandsons of alcoholics. A test of sex-linked transmission of alcohol abuse.

To test the hypothesis of a sex-linked factor influencing the occurrence of alcoholism and alcohol abuse, alcoholism or abuse rates were compared for 136 sons of the sons vs 134 sons of the daughters of 75 alcoholics. No substantial difference between the groups of grandsons was found in frequency of officially registered alcoholism or alcohol abuse, or both, which suggests no sex-linked factor is involved. The total sample was also used to calculate the risk of such registration for the grandson; the rate of registration by the grandsons' fifth decade of life was 43%, approximately three times that of the general male population, and even higher than the equivalent rate in brothers of alcoholics. This result is incompatible with an assumption of a recessive gene being involved in the occurrence of alcoholism, though it fits with the assumption of a dominant gene.

Alcoholism↗