Introduction:Noise in dental offices is one of the risk factors in the workplace. One of the major effects of noise is hearing loss. This study aimed to determine the effects of noise on hearing thresholds of dentists of Babol city. Methods:This descriptive analytical cross-sectional study was performed on 40 dentists in Babol City (as case group) and 40 office workers (as control group). He...

Loudness recruitment is a symptom of sensorineural hearing loss affecting the inner ear when the threshold of hearing is raised. The increase of the hearing threshold is often nonuniform across the range of audible frequencies and loudness perceptions are distorted. One method used to compensate for this type of hearing disorder is amplitude compression followed by equalization. In the present ...

Hearing loss has been the most prevalent sensory disability throughout the world. In Malaysia, National and Hearing Disorder Survey has reported that the prevalence of hearing disorder is about 17.14% with an estimated population of 28.8 million and 1.5% newborns have the onset of hearing impairment. A conventional hearing screening test’s applicability is limited as it requires a feedback resp...

Unilateral hearing loss (UHL) occurs in 25% of cases of congenital sensorineural hearing loss. Due to the unilaterally reduced audibility associated with UHL, everyday demanding listening situations may be disrupted despite normal hearing in one ear. The aim of this study was to quantify acute changes in recognition of speech in spatially separate competing speech and sound localization accurac...

DPOAE input/output (I/O) functions were measured at 7f2 frequencies (1 to 8 kHz; f2/f1 = 1.22) over a range of levels (-5 to 95 dB SPL) in normal-hearing and hearing-impaired human ears. L1-L2 was level dependent in order to produce the largest 2f1-f2 responses in normal ears. System distortion was determined by collecting DP data in six different acoustic cavities. These data were used to deri...

INTRODUCTION AND OBJECTIVE Hearing impairment in diabetic subjects is more prevalent than in the general population. Ageing, noise exposure and smoking are known as risk factors of hearing loss. The aim of this study was to assess whether other factors, such as HbA(1c), blood pressure, serum lipids and BMI have an impact on hearing function among relatively young diabetic subjects. MATERIALS ...

Hearing tests: quantify the hearing abilities of people with both normal hearing and hearing impairments Speech reception threshold (SRT): SNR level at which the speech recognition rate of a person is 50% – Evaluating a listener’s hearing capabilities and diagnosing hearing loss – Adjusting the CI parameters and analyze the impact of new developments in CI devices – Provides useful data for psy...

We had a unique opportunity to investigate the auditory processing abilities of a 10 year-old female after a left functional hemispherectomy. We administered a comprehensive battery of behavioral and electrophysiological tests, assessing both afferent and efferent auditory pathways. Normal peripheral hearing was established. A normal masking level difference threshold and gap detection threshol...

BACKGROUND The objective of the study was the evaluation and comparison of hearing threshold values extrapolated from Auditory Steady State Responses, using 2 commercial systems and the estimation of correction factors applicable to the ASSR data. MATERIAL/METHODS One hundred ten subjects participated to the study. All subjects were initially examined with otoscopy, pure-tone audiometry and a...