Malocclusion and Its Relationship with Sound Speech Disorders in Deciduous and Mixed Dentition: A Scoping Review

Objectives: The intricate relationship between malocclusions and speech sound disorders (SSDs) is yet to be fully understood. This is particularly true for pediatric patients during the deciduous and mixed dentition stages. Employing a methodical scoping review approach, this study scrutinizes the recent literature to elucidate how these dental misalignments impact speech articulation and phonetic clarity. Methods: The present scoping review has been conducted following the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines. The selected articles have been found using PubMed, Scopus, Web of Science, and The Cochrane Library; the scope was limited to studies describing cases of patients in the deciduous or mixed dentition stage and the presence of both malocclusion and SSDs. Results: Out of the 1880 articles found, 44 passed the initial screening and 12 met the eligibility criteria and have been included in this review. Conclusions: The analysis reveals that while there is a consensus on the influence of malocclusions on speech production, the extent and specific nature of these effects vary across studies. anterior open bite is frequently associated with speech disorders, affecting phonemes by altering airflow and tongue placement. The review highlights the need for multidisciplinary approaches for effective treatment and calls for further investigation into the causative relationships between malocclusions and SSDs.