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Three-dimensional a...
Three-dimensional assessment of palatal area changes after posterior crossbite correction with tooth-borne and tooth bone-borne rapid maxillary expansion : A randomized controlled trial with 5-year follow-up
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- Malmvind, Damir (författare)
- Department of Orthodontics, Postgraduate Dental Education Center, Örebro, Sweden
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- Golez, Aljaz (författare)
- Institute of Physiology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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- Magnuson, Anders (författare)
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, Örebro, Sweden
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- Ovsenik, Maja (författare)
- Department of Orthodontics and Dentofacial Orthopaedics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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- Bazargani, Farhan, 1969- (författare)
- Region Örebro län,Örebro universitet, Institutionen för medicinska vetenskaper,Department of Orthodontics, Postgraduate Dental Education Center
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(creator_code:org_t)
- 2022-07-06
- 2022
- Engelska.
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Ingår i: Angle orthodontist. - : Angle Orthodontists Research and Education Foundation. - 0003-3219 .- 1945-7103. ; 92:5, s. 589-597
- Relaterad länk:
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https://doi.org/10.2...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- Objectives: To assess and compare the three-dimensional treatment changes in palatal surface area and volume using either tooth-borne (TB) or tooth bone-borne (TBB) rapid maxillary expanders and to evaluate the long-term effects of the two devices and the incidence of the relapse between the groups.Materials and Methods: A total of 52 consecutive patients who met the eligibility criteria were recruited and allocated to either the TB group, mean age 9.3 years (standard deviation [SD], 1.3), or the TBB group, mean age 9.5 years (SD, 1.2). Study casts were taken before, directly after, 1 year after, and 5 years after expansion. Study casts were digitized, superimposed, and evaluated. Participants were randomly allocated in blocks of different sizes using the concealed allocation principle in a 1:1 ratio.Results: Changes in palatal volume, palatal surface area, and palatal projection area within and between the groups up to 5 years after expansion followed the same pattern and did not show any statistically significant differences between the groups. Relapse was seen in 15% of the patients. It seemed that open-bite and a Class III growth pattern could be assumed as prognosis-deteriorating factors in regard to stability of the treatment.Conclusions: There were no significant differences between the TB and TBB groups in palatal volume, palatal shell area, or palatal projection area directly after expansion or at 1 year and 5 years after expansion, which implies that the two devices gave rise to the same immediate and long-term outcomes. (Angle Orthod. 2022;92:589-597.)
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Odontologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dentistry (hsv//eng)
Nyckelord
- Palatal expansion technique
- 3D imaging
- Crossbite
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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