A New Designed Expander Supported by Spike Miniscrews With Enhanced Stability

Chen, Yu; Kim, Kyung A.; Seo, Kyung Won; Kang, Yoon‐Goo; Oh, Song Hee; Choi, Yong-Suk; Kim, Seong Hun

doi:10.1097/scs.0000000000002378

Cited by 4 publications

(4 citation statements)

References 11 publications

(14 reference statements)

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“…47,48 However, the conventional tooth-borne RME has its disadvantages, including limited and flared skeletal movement, undesirable dental buccal tipping, root resorption, buccal bone loss and lack of long-term stability. 49,50 Bone-borne expanders, supported by TSADs, have been developed to avoid these side effects in the non-growing patient. 49 There are several designs of bone-borne expanders with variations of TSAD position, presence of acrylic pads and additional contact with teeth using bands.…”

Section: Tr An S Ver S E D Imen S I On Controlmentioning

confidence: 99%

“…49,50 Bone-borne expanders, supported by TSADs, have been developed to avoid these side effects in the non-growing patient. 49 There are several designs of bone-borne expanders with variations of TSAD position, presence of acrylic pads and additional contact with teeth using bands. 51,52 The C-expander, a tissue bone-borne expander, has been used in the BOS since 2004, and the results have been studied using CBCT.…”

Section: Tr An S Ver S E D Imen S I On Controlmentioning

confidence: 99%

“…Rapid maxillary expansion (RME) has been a widely accepted and well‐established method for correction of transverse maxillary deficiency before the peak in skeletal growth 47,48 . However, the conventional tooth‐borne RME has its disadvantages, including limited and flared skeletal movement, undesirable dental buccal tipping, root resorption, buccal bone loss and lack of long‐term stability 49,50 . Bone‐borne expanders, supported by TSADs, have been developed to avoid these side effects in the non‐growing patient 49 .…”

Section: Transverse Dimension Controlmentioning

confidence: 99%

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Critical issues concerning biocreative strategy in contemporary temporary skeletal anchorage device orthodontics: A narrative review

Park

Choi

Kim

et al. 2020

Orthod Craniofacial Res

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Temporary skeletal anchorage devices (TSADs) have been used in the orthodontic field since the 1990s, greatly expanding the scope of orthodontic treatment. 1-4 The need of orthognathic surgery with general anaesthesia has been reduced dramatically by using TSADs to effectively treat mild and moderate dento-alveolar dysplasia. Non-extraction Class II correction can be accomplished by distalizing molars. Four other examples are as follows: transverse correction with minimum flaring of maxillary alveolar segments, closing the bite with molar intrusion, correction of a Class III anterior cross bite using TSAD in combination with minor segmental osteotomy and efficient anterior canting correction. 5-7 Biocreative Orthodontic Strategy (BOS) was developed in 1979, established and systemized in 1998. 3,4 It is a diagnostic treatment method that uses TSADs not only as an anchorage necessary for orthodontic treatment, but also as an active driving appliance with the aim of obtaining physiologically stable occlusion (Figure 1). 8 It can be especially advantageous in patients with anatomical limitations, skeletal discrepancies or bone loss. 4 In this protocol, biomechanics are simplified, forces are targeted to avoid forces to susceptible teeth, fewer fixed attachments are used, and the number of TSADs is minimized. 9,10 The key principles of BOS are specific to the growth stage of the patient. We have four principles for young patients and six principles for adults. 4,11 Using initial letters of ten principles, we made a phrase:

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Section: Tr An S Ver S E D Imen S I On Controlmentioning

confidence: 99%

Section: Tr An S Ver S E D Imen S I On Controlmentioning

confidence: 99%

Section: Transverse Dimension Controlmentioning

confidence: 99%

See 1 more Smart Citation

Critical issues concerning biocreative strategy in contemporary temporary skeletal anchorage device orthodontics: A narrative review

Park

Choi

Kim

et al. 2020

Orthod Craniofacial Res

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“…In this regard, the use of miniscrews to stabilize RPEs seems to be helpful, especially in late adolescence, and is currently the focus of ongoing research [23, 24]. However, to date, available data is scarce.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the stiffness characteristics of rapid palatal expander screws

Lombardo

Sacchi²,

Larosa

et al. 2016

Prog Orthod.

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BackgroundThe aim of this study is to evaluate the mechanical properties of the screws used for rapid expansion of the upper jaw.MethodsTen types of expansion screw were assessed, seven with four arms: Lancer Philosophy 1, Dentaurum Hyrax Click Medium, Forestadent Anatomic Expander type “S”, Forestadent Anatomic Expander type “S” for narrow palates, Forestadent Memory, Leone A 2620-10 with telescopic guide, and Leone A 0630-10 with orthogonal arms; and three with two arms: Dentaurum Variety S.P., Target Baby REP Veltri, and Leone A 362113. A test expander with the mean dimensions taken from measurements on a sample of 100 expanders was constructed for each screw. The test expanders were connected to the supports of an Instron 4467 (Instron Corp., USA) mechanical testing machine equipped with a 500 N load cell, and the compression force exerted after each activation was measured. The mean forces expressed by the two- and four-arm expanders were then compared.ResultsAfter five activations, the forces expressed by the two-arm devices were double than those expressed by the four-arm devices on average (224 ± 59.9 N vs. 103 ± 32.9 N), and such values remained high after subsequent activations.ConclusionsThe expanders tested demonstrated stiffness characteristics compatible with opening of the palatine sutures in pre-adolescent patients. The stiffness of such devices can be further increased during the construction phase.

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Extensiometric analysis of strain in craniofacial bones during implant-supported palatal expansion

Elias

Fernandes

Zanivan³

et al. 2017

Journal of the Mechanical Behavior of Biomedical Materials

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A New Designed Expander Supported by Spike Miniscrews With Enhanced Stability

Abstract: The design of spike expander is combining spike screws and an expansion screw, which can provide a good and easy treatment method for transverse maxillary deficiency.

Cited by 4 publications

References 11 publications

Critical issues concerning biocreative strategy in contemporary temporary skeletal anchorage device orthodontics: A narrative review

Critical issues concerning biocreative strategy in contemporary temporary skeletal anchorage device orthodontics: A narrative review

Evaluation of the stiffness characteristics of rapid palatal expander screws

Extensiometric analysis of strain in craniofacial bones during implant-supported palatal expansion

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