Yurttadur, GizemIleri, ZehraAkin, Mehmet2020-03-262020-03-2620152528-96592148-9505http://www.trdizin.gov.tr/publication/paper/detail/TWpRME9EY3hNUT09https://hdl.handle.net/20.500.12395/31696A hybrid expander is a newly designed bone-anchored expander consisting of 2 mini-screws and palatal acrylic; it does not coverany teeth. The aim of this case report is to present the treatment of a patient with transversal maxillary deficiency by hybridexpander. An 11.4-year-old female patient came to our clinic complaining about the appearance of her teeth. She had a narrowmaxillary arch, unilateral dental crossbite, anterior dental crowding, and dental Class II canine and molar relationships on bothsides. Two self-tapping mini-screws were placed between the first molar and second premolar on the palate under minimal localanesthesia. After 1 week, this appliance was bonded to the mini-screws with Transbond XT (3M Unitek, Monrovia, CA, USA)resin. The expansion screw was activated twice a day for 1 week and then once a day until the expansion was completed. Afterthe expansion period, the brackets were bonded to the teeth without removing the hybrid expander. Sufficient maxillary expansionhad been achieved without buccal tipping of the posterior teeth, and the midline diastema had closed spontaneously. This newlydesigned hybrid expander was efficient in correcting a transverse maxillary deficiency without any of the side effects found withconventional rapid maxillary expanders. The most important advantage of this appliance is that clinicians can implementexpansion and bonding procedures at the same time. (Turkish J. Orthod. 2015;28:64–70)eninfo:eu-repo/semantics/openAccessDiş HekimliğiArticle2826470