ArticleEuropean journal of orthodontics2022
Orthognathic speech pathology: impacts of Class III malocclusion on speech.
Article in European journal of orthodontics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 43 citations in OpenAlex.
- Impacts of jaw surgery on speech in Class III patients.Nature communications · 2026Observational
- CT-based three-dimensional morphometric analysis of the bony palate and hard palatal mucosa in female orthognathic surgery candidates.Frontiers in oral health · 2026Article
- A Lingual Ultrasound Study of Speech in Patients With Cleft Lip and Palate Following Orthognathic Surgery.Orthodontics & craniofacial research · 2025Article
- Association of Growth Hormone Receptor Gene Polymorphisms (rs6180, rs6182, rs6184) with Skeletal Class III Malocclusion and Prognathic Mandibles in the Deutero-Malay Race.European journal of dentistry · 2025Article
- Observational
- Investigation of orthognathic surgery indicators-combination with index of orthognathic functional treatment needs (IOFTN) and maxillofacial morphometric analysis.Oral and maxillofacial surgery · 2024Article
- Article
- Multitaper Spectrum Analysis of Consonants Produced by Patients With Dentofacial Disharmonies.Journal of speech, language, and hearing research : JSLHR · 2024Article
- Effect of SEC III protocol on upper airway dimensions in growing class III patients: a retrospective study.BMC oral health · 2023Article
- Evaluation of the mandibular condyles trabecular structure in patients with severe class III pattern: a computed tomography (CT) fractal analysis study.Scientific reports · 2023Article
- DENTOFACIAL DISHARMONY PATIENTS' SIBILANTS DIFFER FROM CONTROLS' MORE IN SOURCE THAN FILTER PROPERTIES.Proceedings of the ... International Congress of Phonetic Sciences. International Congress of Phonetic Sciences · 2023Article
- Impacts of Development, Dentofacial Disharmony, and Its Surgical Correction on Speech: A Narrative Review for Dental Professionals.Applied sciences (Basel, Switzerland) · 2023Article
- Vowel Production in Children and Adults With Down Syndrome: Fundamental and Formant Frequencies of the Corner Vowels.Journal of speech, language, and hearing research : JSLHR · 2023Article
- Impacts of anterior-posterior jaw disproportions on speech of dentofacial disharmony patients.European journal of orthodontics · 2023Article
- Impacts of Skeletal Anterior Open Bite Malocclusion on Speech.FACE (Thousand Oaks, Calif.) · 2022Article
- Validating Spectral Moment Analysis as a Quantitative Measure of Speech Distortions in Speakers With Class III Malocclusions.Perspectives of the ASHA special interest groups · 2022Article
- Orthognathic speech pathology: impacts of Class III malocclusion on speech.European journal of orthodontics · 2022Article
- Three-Dimensional Analysis of Posterior Mandibular Displacement in Rats.Veterinary sciences · 2022Article
- Article
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Authors and funding
17 authors at 3 institutions in 1 country.
Funding
Abstract
introductionPatients with dentofacial disharmonies (DFDs) seek orthodontic care and orthognathic surgery to address issues with mastication, esthetics, and speech. Speech distortions are seen 18 times more frequently in Class III DFD patients than the general population, with unclear causality. We hypothesize there are significant differences in spectral properties of stop (/t/ or /k/), fricative (/s/ or /ʃ/), and affricate (/tʃ/) consonants and that severity of Class III disharmony correlates with the degree of speech abnormality.
methodsTo understand how jaw disharmonies influence speech, orthodontic records and audio recordings were collected from Class III surgical candidates and reference subjects (n = 102 Class III, 62 controls). A speech pathologist evaluated subjects and recordings were quantitatively analysed by Spectral Moment Analysis for frequency distortions.
resultsA majority of Class III subjects exhibit speech distortions. A significant increase in the centroid frequency (M1) and spectral spread (M2) was seen in several consonants of Class III subjects compared to controls. Using regression analysis, correlations between Class III skeletal severity (assessed by cephalometric measures) and spectral distortion were found for /t/ and /k/ phones.
conclusionsClass III DFD patients have a higher prevalence of articulation errors and significant spectral distortions in consonants relative to controls. This is the first demonstration that severity of malocclusion is quantitatively correlated with the degree of speech distortion for consonants, suggesting causation. These findings offer insight into the complex relationship between craniofacial structures and speech distortions.
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