Kaya S, Çınar BC, Batuk MO, et al. - Researchers conducted this prospective case-control study to examine the ear transfer functions in inner ear malformations through wideband typanometry (WBT), as well as to ascertain if these functions change depending on the types of inner ear malformation. This investigation was carried out in a university hospital. For this investigation, 157 ears (aged 3 to 37 years) under the groups of cochlear hypoplasia, incomplete partition I, incomplete partition II, cochlear aplasia and complete labyrinthine aplasia have been assessed. Thirty ears with normal hearing were enrolled and WBT was conducted in the control group. With respect to traditional tympanometric parameters and WBT test parameters, the inner ear malformation groups showed statistically important distinctions than the control group and from each other. In middle ear transfer functions, the distinctive effects of inner ear malformations was found. The authors discovered that the lack of inner ear structures causes negative impacts on energy absorbance and the other transfer functions of the middle ear. WBT can provide additional diagnostic information for patients with inner ear malformations.