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. 2023 Jul 21;10(7):1258.
doi: 10.3390/children10071258.

Comparison of Different Types of Palatal Expanders: Scoping Review

Affiliations

Comparison of Different Types of Palatal Expanders: Scoping Review

Angelo Michele Inchingolo et al. Children (Basel). .

Abstract

Maxillary bone contraction is caused by genetics or ambiental factors and is often accompanied by dental crowding, with the possibility of canine inclusion, crossbite, class II and III malocclusion, temporomandibular joint disorder, and obstructive sleep apnea (OSAS). Transverse maxillary deficits, in which the maxillary growth is unusually modest, are frequently treated with maxillary expansion. The purpose of this study is to compare the dental and skeletal effects of different types of expanders, particularly the Leaf Expander, rapid and slow dental-anchored or skeletal-anchored maxillary expanders.

Methods: We chose studies that compared effects determined by palatal expansion using a rapid palatal expander, expander on palatal screws, and leaf expander.

Results: Reports assessed for eligibility are 26 and the reports excluded were 11. A final number of 15 studies were included in the review for qualitative analysis.

Conclusions: Clinically and radiographically, the outcomes are similar to those obtained with RME and SME appliances; Therefore, it might be a useful treatment choice as an alternative to RME/SME equipment in cases of poor patient compliance or specific situations. Finally, all of the devices studied produce meaningful skeletal growth of the palate. The use of skeletally anchored devices does, without a doubt, promote larger and more successful growth in adolescent patients.

Keywords: dental anchorage; hyrax; leaf expander; leaf spring activated expander; palatine suture; rapid palatal expander; rep on screw; slow maxillary expansion; transverse maxillary deficit.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 4
Figure 4
Hyrax expander on second primary molar.
Figure 1
Figure 1
PRISMA ScR flowchart diagram of the inclusion process.
Figure 2
Figure 2
Three different types of palatal expander: (a) Hyrax expander; (b) Rep on mini screws; (c) Leaf expander.
Figure 3
Figure 3
Leaf expander with key activator.
Figure 5
Figure 5
Bond anchored maxillary expansion with mini-screw.
Figure 6
Figure 6
Dental effect of (a) Hyrax anchored on molars and (b) Rapid palatal expander anchored on mini screws.

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