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Biomedical subjects

K Pieper

Publications and source records attributed to K Pieper.

At least 55 records · Page 3Linked to original sources
PubMed1989

[Clinical evaluation of the quality of amalgam and polymer filling materials after various periods of function. A study of servicemen of the German armed forces].

A total of 354 amalgam and 123 polymer fillings in 50 soldiers were subjected to a post-treatment evaluation to obtain information on the life of plastic fillings. This study was performed using a simplified procedure based on the evaluation of margins, anatomic design, surface condition as well as (in polymer fillings) color. 45.5% of the single-surface and 67.9% of the multisurface amalgam fillings as well as 53% of the polymer fillings were in need of remaking. The quality of the fillings decreased with increasing age. Thus, only 12% of the newer (less than 4 years) but 30.8% of the older (greater than 4 years) amalgam fillings had the poorest ratings.

Adult↗
PubMed1989

[Prospective study on the mercury uptake of dental students. Part 1: Increase in mercury excretion during simulated training].

It was the goal of this study performed in two subsequent technical courses of operative dentistry to find out if the first "professional" contact of dental students with amalgam resulted in a increased mercury excretion. At six different points in time urine analyses using (flame-free) cold vapor nuclear absorption spectroscopy were performed. At the first measurement, prior to working with amalgam, the median values were at 0.53 micrograms Hg/g creatinine (summer term 88) and 1.46 micrograms Hg/g creatinine (winter term 88/89). At the end of the course the median values have increased to 2.49 micrograms Hg/g creatinine (summer term 88) and 2.56 micrograms Hg/g creatinine (winter term 88/89). In the subsequent vacations the Hg values in the students' urine clearly decreased.

Adult↗
PubMed1986

Caries, oral hygiene and periodontal disease in handicapped adults.

Caries, periodontal disease, oral hygiene and treatment needs were assessed in a group of handicapped adults. The study group comprised 199 individuals aged 17-64 yr, most of whom were mentally subnormal. The mean DMFT values ranged from 17.4 in the 17-24-yr-old age group to 26.9 in the 55-64-yr-old age group. Tooth loss increased rapidly with advancing age. In all age groups the F component was less than 20% and high numbers of untreated carious lesions were found. Of the group studied, 90% needed some conservative treatment. Oral hygiene was poor and a high prevalence of periodontal disease was found. Of the dentulous persons, 49% needed scaling and 34% complex periodontal treatment. The percentage of study group patients requiring dental treatment was very high, so that it can be concluded that dental care for the handicapped is insufficient. This situation must be improved and a suitable system for the delivery of preventive measures must be devised for this group of the population.

Adolescent↗
PubMed1981

Use of a microcomputer for recording dental epidemiologic data.

A portable data recording system that works on the basis of a microcomputer has been developed. The main advantage of this system consists in the carrying out of checks for illogical and contradictory entries during the process of recording. False entries can immediately be corrected. The data are temporarily stored on disks. Subsequent to the completion of the investigation they are automatically transmitted by a transfer program to the computer-system in the computer center. This excludes any human errors occurring in the course of the transfer of the data. During a pilot study, the advantages of the microcomputer system were shown by comparing frequency of examination and recording errors using conventional recording methods and the microcomputer system.

Computers↗