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Copyright of Kieferorthopädie: die Zeitschrift für die Praxis is the property of Quintessenz Verlags GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article explores the use of CAD/CAM technology to design a rapid palatal expander (RPE) that can prevent buccal molar tipping, a common side effect of RPEs. The authors describe the design and printing process of the RPE and present a case study to demonstrate its effectiveness. They also discuss the use of skeletal miniscrew anchorage to eliminate buccal inclination of the molars during expansion. The article concludes by discussing the advantages and disadvantages of different types of RPEs in different patient populations. [Extracted from the article]

Copyright of Kieferorthopädie: die Zeitschrift für die Praxis is the property of Quintessenz Verlags GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article explores the challenges and complications that can arise from boneborne maxillary expansion, with a focus on the use of temporary anchorage devices (TADs). The authors discuss problems such as inflammation, pain, appliance malfunctions, and broken TADs, and stress the importance of careful consideration and informed consent when using this technique. They also discuss different events that can contribute to these challenges. The article then introduces the MARPE design, a digitally designed and 3D printed appliance that aims to address the limitations and side effects of toothborne maxillary expanders. While MARPE is a valuable treatment option, it cannot completely replace surgically assisted rapid palatal expansion. [Extracted from the article]

Objectives To compare the long-term skeletal effects of tooth-borne (TB) and tooth - bone-borne (TBB) rapid maxillary expansion in growing children, using 3D imaging. Materials and methods In total, 52 consecutive patients who met the eligibility criteria were recruited and allocated to either the TB group, mean age 9.3 years (SD 1.3), or the TBB group, mean age 9.5 years (SD 1.2). Cone-beam computed tomography records and plaster models were taken before (T0), directly after (T1), 1 year after (T2), and 5 years after expansion (T3). Randomization Participants were randomly allocated in blocks of different sizes, using the concealed allocation principle in a 1:1 ratio. The randomization list was also stratified by sex to ensure homogeneity between groups. Blinding Due to clinical limitations, only the outcome assessors were blinded to the groups to which the patients were allocated. Results At T1, the midpalatal suture at its anterior part showed a statistically significant difference between the groups with a mean of 0.6 mm (CI 0.2–1.1) more expansion in the TBB group (P < 0.01). This difference was also more evident in boys at T1 with a mean of 0.8 mm (CI 0.2–1.4) (P < 0.01). These differences, however, blotted out at T2 and T3. The nasal width also showed similar differences between the groups, with a significantly larger expansion in the TBB group by a mean of 0.7 mm (CI 0.1–1.4) (P = 0.03). This group difference in favour of the TBB group was maintained at T2 (1.6 mm) and T3 (2.1 mm) (P < 0.01 T2 and T3, respectively). Conclusions Skeletal expansion in the midpalatal suture was significantly higher in the TBB group; however, the magnitude of this expansion was around 0.6 mm more and may not be clinically significant. Skeletal expansion at the level of the nasal cavity was significantly higher in the TBB group. There were no differences between boys and girls with regard to skeletal expansion. Trial registration This trial was not registered on any external sites. [ABSTRACT FROM AUTHOR]

Copyright of Kieferorthopädie: die Zeitschrift für die Praxis is the property of Quintessenz Verlags GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Kieferorthopädie: die Zeitschrift für die Praxis is the property of Quintessenz Verlags GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Kieferorthopädie: die Zeitschrift für die Praxis is the property of Quintessenz Verlags GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)