Sammenheng mellom perseptuell vurdering av hypernasalitet og nasometerverdier hos barn med leppe-kjeve-ganespalte
Year: 2011
Type: dissertation
Study design: Observational Study
Abstract: Excessive nasal resonance in speech (hypernasality) is a disorder which may have negative communicative and social consequences for the person who has this problem. Excessive nasal resonance is often associated with cleft lip and palate velofaryngeal inadequacy, dysarthria or hearing impairment. Assessment of hypernasality has proven to be challenging both clinically and in research. There are questions regarding the accuracy and reliability of auditory perceptual assessment of nasal speech, and whether instrumental measures can be used to improve the reliability of clinical evaluation. The purpose of conducting this study was to obtain information about the relationship between perceptual ratings of hypernasality and nasalance scores in individuals with cleft lip and palate. From the earliest tests of instrumental measurements until today there have been ongoing studies that are comparing instrumental scores with perceptual judgments of nasality, but none of these studies has been conducted in Norway. However in 2009 new guidelines from the Medical Quality registry require that all treatment and investigations of children with cleft lip and palate must be registered in a national registry. As a result of this,- instrumental measurements from the nasometer is going to be a part of the treatment protocol in the cleft palate team in both Bergen and Oslo from 2011. On the basis of this new guidelines research regarding the relationship between perceptual judgments and nasalance scores has been demanded in communities in Norway. An important part of the theoretical foundations has been the study of factors affecting the nasal scores measured by the nasometer, factors affecting the perceptual evaluation, the correspondence between these forms of assessment, and finally issues related to the anatomy of resonance and nasalance. The sample of this study was 23 children born I 1995 with cleft lip and palate. The children came from different parts of the country and belonged to the cleft palate team in Bergen. Both the perceptual assessment and the nasometer recording for each child were performed following the same procedures and contents. The perceptual evaluation is based on a 5-point EAI which is a descriptive scale where 5 indicate no nasality and 1 indicate serious nasality. The nasometer recordings calculated a mean nasalance score for sentences without nasals (oral sentences), sentences with nasals (oronasale sentences) and sentences with an excess of nasals (nasal sentences). Significant correlations were found between perceptual assessment of hypernasality and nasometer scores on oro and oronasale sentences and this are consistent with similar studies conducted in other countries. No significant differences between the sexes were found for the nasometer scores as well as the perceptual assessment.
Author: Hilde Salomonsen
Language: Norwegian
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W1138100960