SCHWARTZ APPLIANCE AND LIP BUMPER AS TREATMENT MODALITIES FOR MANDIBULAR CROWDING IN MIXED DENTITIONS

Dental crowding is the most common form of malocclusion. It more pronounced in mandible than maxilla and tends to increase with age. Depending on degree space deficiency age children prevalence dental can be as high 50%. Schwartz appliance lip bumper have been widely used an early treatment for increasing lower arch dimensions. The aim this review evaluate scientific research about efficacy compare changes caused by two appliances addressing mandibular mixed dentition. A comprehensive literature search electronic databases: PubMed, Cochrane Library Google Scholar was performed. Also, a reference lists included studies conducted, ensure coverage literature. Search terms "Schwartz appliance" OR "removable AND "lip bumper" "fixed "mandibular crowding" "mixed dentition" "early dentition". resulted identifying several that met inclusion criteria.Results show both effectively improve dentition, although extent type produced these may vary. effective inter canine width, while has effect length. Patient compliance well duration are important factors success orthodontic treatment. alleviating crowding, thus providing cost-effective simple choice should based individual patient’s needs goals. Further needed stability long-term effects need further fixed Key words: appliance, bumper, dentition &nbsp