European journal of orthodontics · 2023
Impact of orthognathic surgery on voice and speech: a systematic review and meta-analysis.
МетаанализСистематический обзорСтатьяНазвание и аннотация: Перевод в очереди
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Vilanova Izabela Dahmer, Almeida Suzanne Bettega, de Araújo Valkleidson Santos, Santos Rosane Sampaio, Schroder Angela Graciela Deliga, Zeigelboim Bianca Simone, Corrêa Camila de Castro, Taveira Karinna Veríssimo Meira, de Araujo Cristiano Miranda
Аннотация
BACKGROUND: Orthognathic surgical procedures, whether in one or both jaws, can affect structures regarding the articulation and resonance of voice and speech.
OBJECTIVE: Evaluating the impact of orthognathic surgery on voice and speech performance in individuals with skeletal dentofacial disharmony.
SEARCH METHODS: Word combinations and truncations were adapted for the following electronic databases: EMBASE, PubMed/Medline, Scopus, Web of Science, Cochrane Library, and Latin American and Caribbean Literature in Health Sciences (LILACS), and grey literature.
SELECTION CRITERIA: The research included studies on nonsyndromic adults with skeletal dentofacial disharmony undergoing orthognathic surgery. These studies assessed patients before and after surgery or compared them with individuals with good facial harmony using voice and speech parameters through validated protocols.
DATA COLLECTION AND ANALYSIS: Two independent reviewers performed all stages of the review. The Joanna Briggs Institute tool was used to assess risk of bias in the cohort studies, and ROBINS-I was used for nonrandomized clinical trials. The authors also performed a meta-analysis of random effects.
RESULTS: A total of 1163 articles were retrieved after the last search, of which 23 were read in full. Of these, four were excluded, totalling 19 articles for quantitative synthesis. When comparing the pre- and postoperative periods, both for fundamental frequency, formants, and jitter and shimmer perturbation measures, orthognathic surgery did not affect vowel production. According to the articles, the main articulatory errors associated with skeletal dentofacial disharmonies prior to surgery were distortions of fricative sounds, mainly/s/ and/z/.
CONCLUSIONS: Orthognathic surgery may have little or no impact on vocal characteristics during vowel production. However, due to the confounding factors involved, estimates are inconclusive. The most prevalent articulatory disorders in the preoperative period were distortion of the fricative phonemes/s/ and/z/. However, further studies must be carried out to ensure greater robustness to these findings.
REGISTRATION: PROSPERO (CRD42022291113).
OBJECTIVE: Evaluating the impact of orthognathic surgery on voice and speech performance in individuals with skeletal dentofacial disharmony.
SEARCH METHODS: Word combinations and truncations were adapted for the following electronic databases: EMBASE, PubMed/Medline, Scopus, Web of Science, Cochrane Library, and Latin American and Caribbean Literature in Health Sciences (LILACS), and grey literature.
SELECTION CRITERIA: The research included studies on nonsyndromic adults with skeletal dentofacial disharmony undergoing orthognathic surgery. These studies assessed patients before and after surgery or compared them with individuals with good facial harmony using voice and speech parameters through validated protocols.
DATA COLLECTION AND ANALYSIS: Two independent reviewers performed all stages of the review. The Joanna Briggs Institute tool was used to assess risk of bias in the cohort studies, and ROBINS-I was used for nonrandomized clinical trials. The authors also performed a meta-analysis of random effects.
RESULTS: A total of 1163 articles were retrieved after the last search, of which 23 were read in full. Of these, four were excluded, totalling 19 articles for quantitative synthesis. When comparing the pre- and postoperative periods, both for fundamental frequency, formants, and jitter and shimmer perturbation measures, orthognathic surgery did not affect vowel production. According to the articles, the main articulatory errors associated with skeletal dentofacial disharmonies prior to surgery were distortions of fricative sounds, mainly/s/ and/z/.
CONCLUSIONS: Orthognathic surgery may have little or no impact on vocal characteristics during vowel production. However, due to the confounding factors involved, estimates are inconclusive. The most prevalent articulatory disorders in the preoperative period were distortion of the fricative phonemes/s/ and/z/. However, further studies must be carried out to ensure greater robustness to these findings.
REGISTRATION: PROSPERO (CRD42022291113).