Surgically assisted rapid palatal expansion (SARPE): three-dimensional superimposition on cranial base

Romano, Fábio Lourenço; Sverzut, Cássio Edvard; Trivellato, Alexandre Elias; Saraiva, Maria da Conceição Pereira; Nguyen, Tung

doi:10.1007/s00784-021-04355-z

Cited by 5 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… 12 , 21 Clinical studies have also reported a V-shaped opening of the midpalatal suture due to SARPE. 13 , 24 , 36 , 37 Comparisons are problematic due to study design, surgical technique, and appliance design and position. In addition, it has been shown that age is also directly related to the opening pattern of the midpalatal suture, with older subjects presenting smaller and lesser parallel maxillary expansion.…”

Section: Discussionmentioning

confidence: 99%

“…Dental structures such as central incisors presented downward and more lateral displacements, whereas the structures such as molars presented upward and less lateral displacement. Dental displacement pattern due to SARPE has shown inconsistencies according to surgical technique and/or expander device design, and more anterior dental expansion than posterior, 12 , 21 approximately parallel, 12 , 22 - 24 and more posterior than anterior dental expansion, 25 have been reported by the literature. In addition, the V-shaped separation of the maxillary halves provides teeth displacement to not follow the same amount or direction of the skeletal base.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

“…However, SARPE has shown inconsistencies in the midpalatal expansion pattern depending on the surgical technique and/or expander device design. The literature has reported more anterior dental expansion than posterior, 12,21 approximately parallel, 12,[22][23][24] or more posterior than anterior dental expansion. 25 Other complications such as asymmetric expansion between the right The aim of this study was to compare the amount of displacement and stress distribution due to number of screws and different anchoring screw location of three different types of expansion appliance (bone-borne and hybrid) used in surgically assisted rapid palatal expansion on craniofacial and dentoalveolar structures using finite element analysis (FEA).…”

Section: Introductionmentioning

confidence: 96%

See 3 more Smart Citations

Effect of different palatal expanders with miniscrews in surgically assisted rapid palatal expansion: A non-linear finite element analysis

KOÇ,

JACOB

2024

Dental Press J. Orthod.

View full text Add to dashboard Cite

Introduction: Surgically assisted rapid palatal expansion (SARPE) has been the treatment of choice in subjects presenting skeletally mature sutures. Objective: The purpose of this study was to analyze stress distribution and displacement of the craniofacial and dentoalveolar structures resulting from three types of palatal expanders with surgical assistance using a non-linear finite element analysis. Material and Methods: Three different palatal expanders were designed: Model-I (tooth-bone-borne type containing four miniscrews), Model-II (tooth-bone-borne type containing two miniscrews), and Model-III (bone-borne type containing four miniscrews). A Le Fort I osteotomy was performed, and a total of 5.0 mm palatal expansion was simulated. Nonlinear analysis (three theory) method (geometric nonlinear theory, nonlinear contact theory, and nonlinear material methods) was used to evaluate stress and displacement of several craniofacial and dentoalveolar structures. Results: Regardless of the maxillary expander device type, surgically assisted rapid palatal expansion produces greater anterior maxillary expansion than posterior (ANS ranged from 2.675 mm to 3.444 mm, and PNS ranged from 0.522 mm to 1.721 mm); Model-I showed more parallel midpalatal suture opening pattern - PNS/ANS equal to 54%. In regards to ANS, Model-II (1.159 mm) and Model-III (1.000 mm) presented larger downward displacement than Model-I (0.343 mm). PNS displaced anteriorly more than ANS for all devices; Model-III presented the largest amount of forward displacement for PNS (1.147 mm) and ANS (1.064 mm). All three type of expanders showed similar dental displacement, and minimal craniofacial sutures separation. As expected, different maxillary expander designs produce different primary areas and levels of stresses (the bone-borne expander presented minimal stress at the teeth and the tooth-bone-borne expander with two miniscrews presented the highest). Conclusions: Based on this finite element method/finite element analysis, the results showed that different maxillary expander designs produce different primary areas and levels of stresses, minimal displacement of the craniofacial sutures, and different skeletal V-shape expansion.

show abstract