Age-associated changes of the mandibular foramen position in anteroposterior dimension and of the mandibular angle in dry human mandibles.

The effect of age on the anteroposterior (A-P) position of the mandibular foramen (MF) and on the size of the gonial angle (GA) was evaluated in this study. From an Israeli Bedouin population, 121 dry mandibles with primary (36), mixed (26), and permanent dentitions (59) were analyzed. The A-P position of the MF perpendicular to the posterior border of the ramus was measured with a digital caliper.

Validity and accuracy of electric response audiometry using the auditory steady-state response: evaluation in an empirical design.

The validity and accuracy of the application of the auditory steady-state response (ASSR) to electric response audiometry (ERA) was tested further in a study permitting subjects to be their own controls for hearing loss. Simulated sensorineural hearing loss (SSHL) of complex configuration and varying degrees was effected using filtered masking noise. Thresholds estimated via ASSR-ERA were compared to those measured via conventional pure-tone audiometry.

Accuracy of hearing aid use time as reported by experienced hearing aid wearers.

Objective: The purpose of this study was to investigate the relationship between the amount of time that a person reports wearing his or her hearing aid and the actual time that the hearing aid is worn. Although use time data are used in the analysis and interpretation of investigations concerned with auditory perceptual learning and with user satisfaction, the accuracy of self-reported use time has not been fully investigated.

Design: The experimental and control group were fit with a hearing aid that has the capability of storing use time data for later analysis.

Autopsy proven pulmonary embolism among the institutionalized elderly.

The presentation of pulmonary embolism is variable in the elderly as in any age group. Common symptoms such as chest pain, dyspnea, and hemoptysis may be absent. Furthermore, precursors such as phlebitis, malignancy, and recent surgery often may be absent as well.