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Biomedical subjects

R Rahn

Publications and source records attributed to R Rahn.

At least 37 records · Page 2Linked to original sources
PubMed1990

[Endocarditis risk in use of dental irrigators].

The incidence of bacteremia after application of a dental irrigator was investigated in 100 healthy volunteers. Venous blood was inoculated in routine blood culture bottles one, three and five minutes after dental irrigation. In 39 volunteers a transient bacteremia was detected, mainly Strep. Viridans was cultured. Incidence correlated with the grade of oral hygiene und periodontal disease.

Adolescent↗
PubMed1989

[Susceptibility of frequency adapted cardiac pacemakers to dental treatment].

Two rate-responsive pacemakers (Activitrax and Sensolog) were tested in order to show up to which extent its function can be disturbed by dental treatment. Inhibition of the pacemaker occurred by switching the electrical dental appliance on and off, or by moving it back and forth. In most cases, inhibition was only evident when the distance between the pacemaker and the electrical appliance was less than 10 cm. The electrome proved to be the most potent source of disturbance, as the function of the pacemaker was totally inhibited when it was switched on and off with a frequency of 1 to 2 Hz and even at a distance of 2.8 meters. During dental treatment--especially osteotomies--vibrations are transferred upon the patient which can cause an increase of the pacing rate.

Dental Care for Persons with Disabilities↗
PubMed1989

[Follow-up of patients with atypical facial pain].

100 patients with abnormal pain in the facial area have been examined and questioned about their symptoms and the preceding therapy. At the time of this study the patients already had a history of pain of about five years. Since no cause could be discovered for the pain, treatment was limited to symptomatic relief using injections of long-acting local anesthetics or carbamacepine. Generally, both methods resulted in a relief of the symptoms.

Adolescent↗
PubMed1989

[Single support of atrophic edentulous mandible with endosseous implants. Modified method of implantation with Ledermann titanium plasma-coated screw implants (TPS)].

In contrast to the usual technique of Ledermann to implant four TPS-implants in edentulous mandibles a modified method with only two implants is described. The advantages of taking only two implants are the easier implantation technique, the lower costs, and especially a better dynamic of the full denture. In connection with a round bar most of the pressure produced by the masticatory muscles is taken by the mucosae and almost no eccentric forces effect on the implants. This technique should only be applied combined with a denture in the edentulous upper jaw. Strictly regarding the range of indications our rate of failure with two implants is not higher than with the usual method described by Ledermann.

Bone Resorption↗
PubMed1989

[In vitro study of causes of radiation caries].

50 impacted third molars were surgically removed and each tooth was divided in half. One half of each tooth was irradiated with 60 or 120 Gy. Exposure to irradiation did not affect the hardness of enamel or dentin.

Dental Caries↗