Impact of orthognathic surgery on voice and speech: a systematic review and meta-analysis.

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.