Biomedical subjects

R O'Neal

Publications and source records attributed to R O'Neal.

6 recordsLinked to original sources

PubMed1991

The penetration of lavage solution into the periodontal pocket during ultrasonic instrumentation.

The purpose of this study was to evaluate the penetration depth of the water coolant for medicament lavage of an ultrasonic device into the periodontal pocket. Patients having teeth previously planned for extraction, and exhibiting probing depths 3 mm or greater were used in this study. A reference notch was placed on the tooth at the level of the gingival margin and the probing attachment level (PAL) was measured from the base of the notch to the base of the pocket. The ultrasonic device, with an EWPP tip and equipped with a reservoir of erythrocin dye colored coolant, was activated and moved in a vertical direction from the gingival margin to the apical extent of the pocket. The tooth was extracted and the penetration depth (PD) of the dye-colored water spray was measured from the reference notch to the apical limit of the stained subgingival plaque. The tooth was counter stained with methylene blue to determine the coronal extent of the connective tissue attachment. Pearsons' Product Moment Correlation Coefficient for the PAL and PD was calculated. Dye-stained root surface was observed along the full extent of the probe tip's penetration path. The dispersion of the dye-colored stain was localized to the area of the ultrasonic probe with very little lateral dispersion. The ultrasonic instrument may be an effective system to mechanically remove plaque and calculus at the same time as delivering a chemotherapeutic agent. The limited dispersion of the liquid dye would indicate that chemical plaque control with this delivery system is dependent upon thorough debridement with the instrument such that all affected surfaces are instrumented.

Connective Tissue↗

PubMed1991

DWI Task Forces.

Explore the source record for details and available documents.

Accidents, Traffic↗

PubMed1979

The association of obesity with socioeconomic factors in Missouri.

The prevalence of obesity and underweight was estimated for residents of Missouri more than 9 years old on the basis of age, sex, household income, educational attainment, and population density from the results of a survey conducted in 1973. The incidence of overweight was greatest among children 10 to 16 years old and the least for adults 17 to 35 years old. Four percent of the girls 10 to 16 were greater than 159% of average weight for height. Among women greater than 59 years old the incidence of overweight and underweight were high. The proportion of adult women who were overweight as defined by average weight for height and body mass index (W/H2) was inversely related to household income and education. The same was true for adult men in relation to income but the reverse results were observed for education. A larger proportion of urban men were overweight as defined by body mass index compared to rural men. The incidence of obesity among males of all ages and females greater than 59 years old appeared to be related to residence in specific types of communities.

Adolescent↗

PubMed1978

Nutritional status of elderly residents in Missouri.

Nutritional assessment of white persons over 59 who participated in the 1973 Missouri Nutrition Survey was based upon biochemical measurements, dietary intakes using food frequency histories, anthropometric measurements, and a dental examination. There were three major nutritionally related problems: poor dental health, obesity, and anemia. The mean for DMF, periodental index, and oral hygiene index for males was 20.5, 4.9, and 3.9, respectively; for females, 17.6, 3.6, and 2.5. Over one-half of both sexes were edentulous. Of the women 59% were greater than 119% of desirable weight compared to 22% of the men. Using guidelines from the Ten-State Nutrition Survey, the following percentages of men had low blood levels: 20, hemoglobin and serum iron; 2, plasma vitamin A; 6, plasma carotene; 1, serum vitamin C; and 0, serum albumin. The percent of women with low biochemical levels were: 11, hemoglobin; 10, serum iron; 7, plasma vitamin A; 1, serum vitamin C; and 2, serum albumin. None of the subjects had low or deficient levels of erythrocyte glutathione reductase. One-half of the women compared to one-fifth of the men had consumed diets with one or more nutrients below 67% of the 1974 Recommended Dietary Allowances.

Aged↗

PubMed1978

Nutritional status of main food preparers and of nutrition education assistants.

The dietary habits and nutritional status of nutrition education assistants (NEAS) in the Expanded Food and Nutrition Education Program in Missouri were compared with a representative population of Missouri main food preparers (MFPs) from the same regions of the state. Dietary histories indicated that the NEAs tended to have better habits than the MFPs. Using biochemical parameters for determining status for iron, vitamin A, ascorbic acid, and riboflavin, the differences between the two groups were not as great as for the dietary intakes. However, almost half of the MFPs were taking at least one vitamin or mineral supplement compared with 17 per cent of the NEAs. A low dietary intake, coupled with some anemia, probably relating to a low iron intake, was a major nutritional problem for both groups of subjects. Low plasma vitamin A values were also observed among a large proportion of both groups, and obesity was a widespread problem for both groups.

Adult↗

PubMedDate not supplied

Periorbital cellulitis.

Sixty-seven cases of orbital cellulitis from BGSM are reported and 247 cases from the literature reviewed. Staphylococcus aureus was the predominant pathogen except in the age group from three months to three years where a significant number of cases yielded Hemophilus influenzae and Diplococcus pneumoniae. The frequent association of paranasal sinus involvement and orbital cellulitis has been confirmed. Orbital cellulitis is a multifaceted disease which, for proper management, requires close cooperation among pediatricians, ophthalmologists, and nursing service as a multidisciplinary approach for optimal therapy and decreased frequency of complications and sequelae.

Adolescent↗