Condylar Changes in Children with Posterior Crossbite after Maxillary Expansion: Tridimensional Evaluation

Fastuca, Rosamaria; Turiaco, Helga; Assandri, Fausto; Zecca, Piero Antonio; Levrini, Luca; Caprioglio, Alberto

doi:10.3390/children8010038

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…These results are in agreement with Ghoussoub et al [ 29 ], which found a significant transversal increase in the intercondylar distance in growing patients without CLP after rapid maxillary expansion using the Hyrax appliance. Additionally, some reports [ 29 , 30 ] have shown that maxillary expansion with the quad helix appliance does not cause significant changes in the condylar position in relation to the mandibular fossa. Holberg et al reported that bilateral and unilateral CLP patients experience greater skeletal expansion with the use of the quad-helix appliance than patients without CLP [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

Condylar Changes after Maxillary Expansion in Children with Cleft Lip and Palate—A Three-Dimensional Retrospective Study

et al. 2022

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Background: The presence of posterior crossbite can trigger aesthetic and functional changes as mandibular asymmetry in individuals, contributing to asymmetrical muscle function. Mandibular asymmetry and respective condyle adaptation may be an etiological factor in temporomandibular disorder. This study aims to evaluate the effects of maxillary expansion on the position and angulation of the condyles as well as the intercondylar distance in children with cleft lip and palate. Methods: Twenty-five individuals with cleft lip and palate who underwent maxillary expansion were selected. Condylar changes were evaluated by cone beam computed tomography using the Pullinger and Hollender formula. To determine the statistically significant differences between the variables, the Student t-test and the Benjamini–Hochberg correction method for multiple comparisons were used. Results: No statistically significant differences between angulation and condylar position before and after maxillary expansion were found. The intercondylar distance tended to increase in growing individuals with cleft lip and palate after maxillary expansion. Conclusions: Intercondylar distance shows a tendency to increase after expansion regardless of the cleft phenotype. No differences were found in angulation and condylar position with the changes in occlusion resulting from maxillary expansion.

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Section: Discussionmentioning

confidence: 99%

Condylar Changes after Maxillary Expansion in Children with Cleft Lip and Palate—A Three-Dimensional Retrospective Study

et al. 2022

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Bone Modifications Induced by Rapid Maxillary Expander: A Three-Dimensional Cephalometric Pilot Study Comparing Two Different Cephalometric Software Programs

et al. 2022

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Cone-beam computed tomography (CBCT) allows for more accurate 3D study of the craniofacial region and the development of a very precise treatment plan. The present pilot study aims to evaluate the skeletal outcomes of the rapid maxillary expander (RME) on the sagittal, transverse and vertical planes in growing patients subjected to CBCT at T0 and T1, and to compare the results from two different programs. The effects of the RME are monitored in 11 patients who were subjected to CBCT at T0, before the expansion, and at T1, 6 months after the end of the RME therapy. The results obtained are evaluated using two programs: Simplant and Delta-Dent. All of the analyses were performed by the same operator. Both programs reported statistically significant differences between the pre- and post-expansion values of the parameters on the transverse plane. On the vertical plane, only posterior facial height showed a statistically relevant variation. Both programs underlined a discrepancy between the pre- and post-expansion infraorbital and mental foramina distance values; however, this difference was considered statistically significant by Delta-Dent, and not by Simplant. CBCT is a reliable and effective tool for orthodontic diagnosis and treatment planning. Both of the evaluated programs are efficient in tridimensional cephalometric analysis.

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Assessment of Mandibular Symmetry in Patients With Unilateral Crossbite Before and After Rapid Palatal Expansion

Šimůnková Vítová,

Dostálová,

Kratochvílová

2024

Czech Dental Journal

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Stomatologická klinika dětí a dospělých, Univerzita Karlova, 2. lékařská fakulta, a Fakultní nemocnice v Motole, Praha SOUHRN Úvod a cíl: Rychlá maxilární expanze (RME) je léčebná metoda sloužící k rozšíření horního zubního oblouku a horní čelisti v oblasti patrového švu. Méně diskutovaným efektem tohoto terapeutického postupu jsou změny v dolní čelisti a v oblasti temporomandibulárního kloubu (TMK). Cílem tohoto přehledu je shrnout současné poznatky o změnách na dolním zubním oblouku, dolní čelisti a v oblasti TMK u pacientů s jednostranným zkříženým skusem (UPCB) po léčbě pomocí RME, které byly publikovány ve 49 vybraných odborných článcích. Metodika: V databázích PubMed/Medline, Scopus a Embase bylo provedeno vyhledávání a průzkum literatury na základě použití klíčových slov "RME", "jednostranný zkřížený skus", "mandibula", "TMK", "dentální, dentoalveolární a skeletální změny" a "rostoucí pacient". Kritériem výběru byly průřezové studie, prospektivní a retrospektivní klinické studie, randomizované kontrolované studie a systematické přehledy publikované v anglickém jazyce v letech 1999 až 2023. Výsledky: Kritéria pro zařazení splňovalo 49 publikací, z nichž deset bylo systematickým přehledem. Největší statisticky prokazatelné změny na mandibule u pacientů s UPCB na straně zkříženého skusu jsou v délce mandibuly, celkové výšce ramus mandibulae, ve výšce kondylů a v jejich pozici ve fossa glenoidalis. Byly použity různé vyšetřovací metody. Při analýze modelů se větší část studií ztotožnila s výsledky, které poukazují na obecné tendence rozšiřování dolní čelisti v mezimolárové vzdálenosti. Závěr: Většina dostupných studií se zabývá asymetrickým růstem obličejového skeletu. Souvislost mezi jednostranným zkříženým skusem a asymetrií skeletu není dosud dostatečně popsána. V literatuře existuje na téma změn na skeletu mandibuly po RME malé množství kvalitních studií se statisticky a klinicky významnými výsledky. Jsou zapotřebí další výzkumy s větší velikostí vzorku, přesně definovanými diagnostickými kritérii, přísnými vědeckými metodikami a dlouhodobou kontrolou.

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Condylar Changes in Children with Posterior Crossbite after Maxillary Expansion: Tridimensional Evaluation

Cited by 3 publications

References 25 publications

Condylar Changes after Maxillary Expansion in Children with Cleft Lip and Palate—A Three-Dimensional Retrospective Study

Condylar Changes after Maxillary Expansion in Children with Cleft Lip and Palate—A Three-Dimensional Retrospective Study

Bone Modifications Induced by Rapid Maxillary Expander: A Three-Dimensional Cephalometric Pilot Study Comparing Two Different Cephalometric Software Programs

Assessment of Mandibular Symmetry in Patients With Unilateral Crossbite Before and After Rapid Palatal Expansion

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