Malocclusion

Researchers at Hanoi Medical University are studying whether small lingual appliances can correct an excessive Curve of Wilson at the lower second molars in people already wearing labial fixed braces. The trial uses a split-mouth design: one side of the mouth receives the auxilia…

This trial tests whether using a silicone aligner seater (a chewy) more often can improve how well clear aligners move teeth as planned. Adults aged 18 to 45 with mild to moderate crowding or spacing will be randomly assigned to use the chewy only when first inserting each aligne…

This study compares stainless steel and titanium-molybdenum alloy wires for moving canine teeth in people with braces. Sixteen participants will have one type of wire on each side of their upper jaw to see which works better. The goal is to find out which wire moves teeth more ef…

This study examines how orthodontic screening is carried out in public health care. Researchers will assess the treatment needs of children and teenagers aged 6 to 16 and ask them about how their dental alignment affects their quality of life. The goal is to understand current sc…

This study looks at how metal and ceramic braces change the bacteria in dental plaque (biofilm) and affect gum health in 80 people with crooked teeth. Researchers will measure the types and amounts of bacteria, plaque buildup, and gum swelling. The goal is to understand how diffe…

This study looks at children aged 10-15 who need braces for prominent upper front teeth. Some will have upper premolars removed as part of treatment, others will not. Researchers will use sleep studies before and after treatment to see if the extractions increase the risk of obst…