An interventional study of removable anterior expansion screw and Speech and language evaluation in Cross Bite, Malocclusion and Speech, sponsored by Tanta University. Recruiting at 1 site in Egypt. Open to participants aged 8 Years to 10 Years. Per ClinicalTrials.gov, last updated 2026-10-07.
Sponsored by Tanta University · Not applicable, Interventional, and Treatment
The goal of this prospective, single-arm clinical trial is to evaluate the speech performance of children with anterior dental crossbite before and after correction. Also, to assess the impact of early interceptive orthodontic treatment in the mixed dentition stage to correct the anterior dental crossbite on the quality of life of children.
Fifty children of both sexes aged from 8 to 10 years were enrolled and evaluated using the study's inclusion \& exclusion criteria. before beginning interceptive orthodontic treatment, each child underwent full mouth treatment. then, using a removable anterior expansion screw along with posterior bite planes to treat the anterior crossbite. All children were subjected to the Protocol of speech evaluation before appliance insertion and after complete correction of anterior crossbite. Also, the Child Perceptions Questionnaire (CPQ 8-10) in the Brazilian version was used to gauge how the anterior crossbite affected the children's oral health-related quality of life.
323 studies on the registry are indexed under Malocclusion; 85 are open to participants now.
This study's planned enrollment of 50 is above the median of 37 across 242 interventional studies indexed under Malocclusion.
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Exclusion Criteria:
removable anterior expansion screw is used to correct anterior crossbite Child Perceptions Questionnaire was used to gauge how the anterior crossbite affected the children's OHRQoL. children were subjected to the Protocol of speech evaluation
Device: removable anterior expansion screw · Diagnostic Test: Speech and language evaluation · Other: Oral Health Related Quality of Life (OHRQoL) Assessment
For the upper and lower arches, precise and profound alginate impressions were obtained and plaster study models were created. The removable appliance was constructed using acrylic resin with bilateral occlusal coverage for posterior teeth. The removable appliance was inserted in the patient's mouth and the patient was recalled after 24 hours to check the appliance fit. Patient was recalled every four weeks until the dental cross-bite was corrected.
speech evaluation was done by a Phoniatrician and all children were subjected to the Protocol of speech evaluation before expansion screw appliance insertion and after complete correction of anterior crossbite using an articulation test, intelligibility test, and spectrographic analysis. * Articulation test: Five speech sounds were chosen to be studied /s/, /s /, /z/, /z/, /∫ /. The consonants were tested in the initial, medial, and final word positions. * Speech intelligibility test : The general intelligibility score was calculated using Speech intelligibility in context: 5 -point scale: * Spectrographic analysis: Using the computerized speech lab, the child was seated in an upright position \& allowed to talk freely \& repeated syllables were said to him/her.
The Child Perceptions Questionnaire (CPQ 8-10) in Brazilian version was used to gauge how the anterior cross bite affected the children's OHRQoL. It has twenty-five items total, broken down into four health domains (subscales): five questions each about oral symptoms (OS), five questions about functional limitations (FL), five questions about emotional wellbeing (EW), and ten questions about social well-being (SW). The responses never (0), once/twice (1), occasionally (2), often (3), and every day/almost every day (4) are provided for each question on an ordinal scale. The sum of the scores for all questions is used to calculate the scores for each subscale. The CPQ 8-10 was used to assess the OHRQoL before appliance insertion and after complete correction of anterior crossbite.
normal anterior occlusion, no anterior crossbite, normal measured Overjet and Overbite
Normal occlusion is measured as: no anterior crossbite Overbite 1 mm to 4 mm Overjet 1mm to 4 mm
Time frame: 3 months
child compliance, oral health-related quality of life questionnaire
The earlier tested questionnaire is used to compare child compliance before and after anterior crossbite correction
Time frame: 3 months
Measured degree of speech improvement
The pre-treatment assessed speech sounds are compared with the post-treatment assessment
Time frame: 3 months
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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