Design, methodology, and early findings of an autism registry program: ABBILAR project.

The autism spectrum disorder (ASD) registry program presents a unique opportunity to facilitate advanced research in various aspects of ASD, particularly in low-resource countries like Iran. Given the international significance of autism research, registry programs play a critical role in data sharing. ASD registry programs have been effectively established in high-income countries over a few decades; however, there are limited examples from low- and middle-income countries.

Comparison of the effect of clear twin block and traditional twin block on speech: a randomized clinical trial.

Objectives: To compare the effect of clear twin block (CTB) and traditional twin block (TTB) appliances on speech.

Materials And Methods: In this randomized clinical trial, 18 skeletal Class II (Class II, division 1) growing patients were selected and randomly divided into CTB and TTB groups. Objective and semiobjective speech assessment tests were performed for vowel and consonant analyses at four time intervals: before (T0), immediately after (T1), 1 month after (T2), and 3 months after (T3) inserting the appliance.