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Biomedical subjects

P Proff

Publications and source records attributed to P Proff.

9 recordsLinked to original sources

[Approaches for identifying the functional application of Greek-Roman medical instruments].

Various approaches may be used in attempting to identify ancient medical instruments in cases where documentary or archaeological evidence fails to provide adequate information about their appearance or application, viz.: 1) the etymological approach, which is appropriate when only the instrument's name is known and when this indicates something about its form or function. 2) the philological approach, involving a Constitutio textus, the etymological analysis of the instrument's name and an examination of parallel references. This method is suitable in the case of instruments described in an ancient medical text whose meaning is not completely clear. 3) the philological-technical approach, which attempts an interpretation using the above philological approach supplemented by a consideration of the present-day function of a particular instrument or procedure. 4) the technical approach, which may be useful either when the existence of specific variants of an instrument has already been reliably established by means of appropriate technical terms or archaeological evidence and when the instrument is designated in the next in question only by some generic term, or alternatively when terminological specifications are lacking but the available archaeological evidence points to the existence of variants of an ancient instrument adapted for specific ends. For the purpose of illustration, the approaches described here will be applied to problem cases.

Greece, Ancient↗

[The use of the T-Scan system in occlusal diagnosis].

The present study examines the T-Scan reproduction system used in occlusal diagnosis. The system represents a major technical innovation in functional diagnostics. Nevertheless, various aspects of it still require improvement. Amplifying or confirming the results of previous studies, the following observations are intended to indicate how the system might be improved, and how it can be reliably used at present: The reproduction afforded by the sensor as situated in the mouth is insufficient. Exact reproduction of the topography of the occlusal contacts is not possible. Reproducibility of the temporal sequence of the contacts is slight. The registering of dental functional movements can give rise to errors of interpretation. Threshold values for the registration of contact points in the system's pressure mode are uneven. The relative reproduction of different impressions is unreliable. Since in the system's pressure-mode early contacts cannot be distinguished from strong physiological contacts, in clinical practice the former must first be identified using the time-mode.

Bite Force↗

[Not Available].

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History, Early Modern 1451-1600↗