Daniel R Reißmann, Ragna Lamprecht, Uwe Koch-Gromus, Katrin Borof, Christopher Kofahl, Martin Härter, Julie Büschel, Volker Harth, Hanno Hoven, Bärbel Kahl-Nieke, Thomas Beikler, Guido Heydecke, Ghazal Aarabi
[Association of oral health literacy and behaviour with physical oral health. What role can dental education play?]
Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
teachers one professional voice users voice problems common among female teachers known voice problems male ones furthermore studies voice iranian female teachers present study investigated acoustic parameters voice iranian female teachers compares nonteachers crosssectional study 90 iranian female elementary teachers 3050 years old 90 iranian female nonteachers age assessed may 2010 october 2011 data collection carried using dr speech software subprogram vocal assessment version 40 tiger electronics speech therapy clinic comfortable phonation normal voice practitioners judged perceptual evaluation voice therapist indirect laryngoscopy examination otorhinolaryngologist voice characteristics assessed grbas scale speech sample sustained using habitual constant vocal 10 seconds three tokens subject obtained subject asked read standard passage farsi eventually difference measures f0 jitter shimmer harmonic noise ratio hnr maximum phonation time mpt two groups investigated statistics software spss 190 ibm corp2010 results showed values f0 higher teachers 21003 hz nonteachers 19411 hz p 0001 addition values perturbation measures greater teachers jitter 032 shimmer 463 control group jitter 022 shimmer 315 p 0001 hnr mpt values nonteachers showed higher levels p 0001 value hnr teachers 1884156 213173 nonteachers mpt value teachers 1683365 nonteachers 22552 concluded vocal overuse abuse misuse teaching period time result achievement inadequate phonatory pattern excessive musculoskeletal tension possible result tissue changes teachers voice addition acoustic analysis voice parameters teachers may significantly contribute objective voice examination group