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Biomedical subjects

M R Fenlon

Publications and source records attributed to M R Fenlon.

22 records · Page 2Linked to original sources

Medical status of patients attending a primary care dental practice in Ireland.

Medical status of 1,500 patients attending a primary health care dental practice was examined by means of patient self-completed health questionnaire and by structured verbal interview by a dentist. Relevant medical histories and/or drug therapies affecting the practices of dentistry were found in 27.7% of patients. Problems identified included cardiovascular disease (10.4%), endocarditis risks (5.8%), hepatitis (7.9%), leukaemias (0.3%), bleeding tendencies (3%), drug allergies (7.0%), including penicillin allergy (3.6%) and intake of drugs affecting dentistry (6.0%). For most of these categories there was a marked increase in prevalence with increasing age and many categories contained many more women than could be expected from the male/female distribution of the total patient group.

Adolescent↗

Medical screening of 1500 patients in a dental surgery: a prospective study.

Communication between medical and dental practitioners about patients they have in common enhances total patient care, but such communication rarely occurs. This may be due to lack of appreciation by doctors of the medical risks to certain patients undergoing dental treatment. To ascertain a relevant medical history, prospective medical screening was performed on 1500 new patients attending a general dental practice using a standard health questionnaire followed by an interview between the patient and dentist. There were 382 (25.5%) patients with a current or past medical history of relevance to dentistry, 90 (6.0%) were taking medication of potential importance and 105 (7.0%) considered they had an intolerance to certain drugs. The screening provided a patient data base for medical and medico-legal purposes. A total of 376 (25.1%) questionnaires were filled out incorrectly and 63 of these (16.8%) had major misinformation about medical history. A small but important group deliberately misled the dentist either from fear of refusal of treatment or embarrassment about their medical history. Therefore interviews are an essential adjunct to written health questionnaires in eliciting accurate information. Formal screening of new patients is essential in general dental practice. Furthermore, general medical practitioners need to become aware of the common risks to patients undergoing dentistry. Better formal and informal communication between general medical and dental practitioners is recommended for the benefit of their mutual patients.

Communication↗

Measurement of misfit at the implant-prosthesis interface: an experimental method using a coordinate measuring machine.

Measurement of misfit at the implant-prosthesis interface is a difficult procedure. One factor common to all methods that attempt to measure 3-dimensional distortion to the micron level is the difficulty in providing verifiably consistent reference points between individual measurement sets. Consequently, the majority of studies use a relative distortion model in which the coordinate reference system is integral to the framework, thus limiting the value of the data gathered. In the method described, the datum plane and the coordinate reference system were set up external to the framework and could be re-established between measurement sets in a verifiable manner.

Data Interpretation, Statistical↗

Condylar position recorded using leaf gauges and specific closure forces.

Retruded interocclusal records were made for 40 subjects after deprogramming using leaf gauges and controlled incisal forces, which were exerted on a specially constructed occlusal force sensor. These records were used to assess the resulting displacements of the mandibular condyles from their positions in centric occlusion. The leaf gauges were found not to position the condyles inferiorly and posteriorly as has been previously reported.

Adult↗