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26 children without hearing impairment have been examined by otolaryngologists and orthodontists. According to the tubal function test in a pressure chamber they were classified into a group with good and poor tubal function. The E.N.T. examination was unconclusive for a possible relationship between rhinological findings, mode of breathing, sinusitis, size of tonsils, nasal airway resistance and tubal function. Adenoids proved to be a mechanical impairment for active tubal function as stated by many authors. The cephalometric analysis of lateral head films combined with a static and dynamic-functional evaluation of tongue posture revealed significant differences between children with good and poor tubal function. Subjects with a vertical craniofacial growth pattern seem to be predisposed for poor tubal function. Analysing static tongue posture in children with poor tubal function the tongue lies more retracted in a backward position. The back of the tongue is flattened in relation to the palatal arch. In children with good tubal function there is a much closer contact between the back of tongue and the hard palate. Subjects with poor tubal function have an increased incidence of abnormal deglutition combined with tongue-thrust, teeth-apart swallowing, lack of sealing off the anterior oral cavity and contraction of the circumoral musculature. In children with good tubal function one can find the somatic type of swallowing that means no contractions of the circumoral muscles, no tongue-thrust during deglutition but contact of the molars and contraction of the masseter muscle. [ABSTRACT FROM AUTHOR]

We have examined 223 expert opinions of noise with a disablement between 0 and 45% and the carried out SISI-test. We have found, that the SISI-test was negative in 30% of the cases. The diagnostic reliance of the SISI-test as the only test-method for differentiation between noise induced hearing impairments and hearing losses of other origin thus is forther reduced. [ABSTRACT FROM AUTHOR]

We examined in a group of 113 test persons, musicians, tuners, school boys and other normal hearing persons, the SISI-test. We found that in 27% the SISI-test was positive. 13% of the test persons showed an indifferent result. On the average the test was negative in 60%. [ABSTRACT FROM AUTHOR]

We examined 143 ears in 89 patients before and after septum operation. We found that in 56.6% of the patients with negative pressure in the middle ear, this negative pressure was reduced by the operation. This result was supported by rhinomanometric examinations. The tubal resistance and the ability of opening the tubes actively were not influenced. This result indicates an improved pressure compensation between nose and middle ear after the operation, when a tympanic underpressure is present. [ABSTRACT FROM AUTHOR]