RAPID PALATAL EXPANSION AND ITS FEATURES

ASJ. ◽  
2020 ◽  
Vol 2 (40) ◽  
pp. 20-22
Author(s):  
A.K. Al Dzhafari ◽  
S.A. Ulyanovskaya
Keyword(s):  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Maxillofacial Region ◽  
Posterior Teeth ◽  
Anatomical Features ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Congenital Deformities ◽  
Upper Jaw ◽  
Mid Palatal Suture

Rapid Maxillary expansion or palatal expansion as it is sometimes called, occupies unique niche in dentofacial therapy. Rapid Maxillary expansion (RME) is a skeletal type of expansion that involves the separation of the mid-palatal suture and movement of the maxillary shelves away from each other. RME effects the maxillary complex, palatal vaults, maxillary anterior and posterior teeth, adjacent periodontal structures to bring about an expansion in the maxillary arch. Morphogenesis and anatomical features of the upper jaw determine the choice of the method of rapid palatal expansion with narrowing of the upper dentition, as an effective method for eliminating congenital deformities of the maxillofacial region. The majority of dental transverse measurements changed significantly as a result of RME. The maturity of the maxillofacial structures determines the timing and degree of success of rapid palatal dilatation treatment.

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

Children ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 38
Author(s):  
Rosamaria Fastuca ◽  
Helga Turiaco ◽  
Fausto Assandri ◽  
Piero A. Zecca ◽  
Luca Levrini ◽  
...  
Keyword(s):  
Rapid Maxillary Expansion ◽  
3D Analysis ◽  
Maxillary Expansion ◽  
3D Slicer ◽  
Palatal Expansion ◽  
Posterior Crossbite ◽  
Rapid Palatal Expansion ◽  
Before And After ◽  
Condylar Position ◽  
Caucasian Patients

(1) Background: To investigate condylar position in subjects with functional posterior crossbite comparing findings before and after rapid maxillary expansion (RME) treatment through 3D analysis; (2) Methods: Thirty-two Caucasian patients (14 males, mean age 8 y 8 m ± 1 y 2 m; 18 females mean age 8 y 2 m ± 1 y 4 m) with functional posterior crossbite (FPXB) diagnosis underwent rapid palatal expansion with a Haas appliance banded on second deciduous upper molars. Patients’ underwent CBCT scans before rapid palatal expansion (T0) and after 12 months (T1). The images were processed through 3D slicer software; (3) Results: The condylar position changes between T1 and T0 among the crossbite and non-crossbite sides were not statistically significant, except for the transversal axis. At T1, the condyles moved forward (y axis) and laterally (x axis), they also moved downward (z axis) but not significantly; (4) Conclusions: Condilar position in growing patients with functional posterior crossbite did not change significantly after rapid maxillary expansion.

scholarly journals MODERN PERSPECTIVES ON RAPID PALATAL EXPANSION

2021 ◽  
Vol 9 (5) ◽  
pp. 497-500
Author(s):  
Kinnari Markana ◽  
Keyword(s):  
Transverse Dimension ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Negative Effects ◽  
Palatal Expansion ◽  
Beneficial Effects ◽  
Rapid Palatal Expansion ◽  
Mini Implants ◽  
Maxillary Deficiency ◽  
Skeletal Expansion

Maxillary deficiency in the transverse dimension is a common problem in children. The conventional management of such malocclusion is with conventional rapid maxillary expansion. The beneficial effects of such an orthodontic therapy are explained in detail in the literature. But there are also negative effects of conventional rapid maxillary expansion. Thus, the improvements in the methods of expansion has led to discovery of miniscrew assisted rapid palatal expansion. The miniscrew assisted rapid palatal expansion are supported by mini implants and thus enable better skeletal expansion of maxilla. This article will discuss the favourable effects, negative effects, and clinical uses of conventional and miniscrew assisted rapid palatal expansion.

scholarly journals Modified Hyrax for Microimplant-Assisted Rapid Palatal Expansion

2022 ◽  
pp. 030157422110562
Author(s):  
Harshikkumar Parekh ◽  
Rahul Trivedi ◽  
Falguni Mehta ◽  
Renuka Patel ◽  
Niyanta Joshi
Keyword(s):  
Surgical Procedure ◽  
Three Dimensional ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Temporary Anchorage Device

Temporary anchorage device-assisted rapid maxillary expansion has widened the horizon to treat adults having maxillary transverse deficiency without any surgical procedure. Three-dimensional custom modifications have also been developed, but they can be expensive. A modification of Hyrax screw with the use of lingual sheaths is suggested for microimplant-assisted rapid palatal expansion, which can be an easy to fabricate in-office and economical option.

scholarly journals Observational Study Regarding Possible Side Effects of Miniscrew-Assisted Rapid Palatal Expander (MARPE) with or without the Use of Corticopuncture Therapy

Biology ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 187
Author(s):  
Eugen Silviu Bud ◽  
Cristina Ioana Bică ◽  
Mariana Păcurar ◽  
Petru Vaida ◽  
Alexandru Vlasa ◽  
...  
Keyword(s):  
Observational Study ◽  
Orthodontic Appliances ◽  
Maxillary Expansion ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Basal Bone ◽  
Fixed Orthodontic Appliances ◽  
Before And After ◽  
Palatal Mucosa ◽  
Mid Palatal Suture

The use of maxillary expanders has the effect of distancing the maxillary bones at the level of the median palatal suture. During maxillary expansion, the main resistance forces occur at the zygomatico-maxillary sutures, and not in the median palatal suture, which is the basic principle on which this method is based. In this observational study, we evaluated possible complications at the skeletal and dentoalveolar level after palatal split using miniscrew-assisted rapid palatal expansion (MARPE) associated or not with corticopuncture (CP) therapy. The study included 27 patients with maxillary transverse deficiency and unilateral or bilateral cross-bite. Skeletal and dentoalveolar changes were evaluated using cone beam computed tomography (CBCT) images acquired before and after expansion. The mid-palatal suture was separated in 88.88% of cases, buccal bone height of the alveolar crest had decreased at first molar both at oral and palatal level by approximately 2.07 mm in 40.7% of cases whilst the remaining 59.3% showed insignificant bone loss, with canines exhibiting buccal tipping of 4.10° in 62.5% of cases. Changes of the occlusal planes were observed in 10 cases (37%). Maxillary canines tended to show symmetric buccal inclinations relative to the maxillary basal bone. Six patients; 22.22% showed hypertrophy/hyperplasia of the palatal mucosa associated with ulcerations, erythema, itching, and discomfort in the area. Swelling at the mid-palatal suture after split was observed in all cases and was caused by the resultant force. No cases of necrosis of the palatal mucosa were observed. Although occlusal modifications occur after palatal split, especially in unilateral cross-bite cases, these changes can be treated with the help of fixed orthodontic appliances.

Rhinofibroscopic and Rhinomanometric Evaluation of Patients with Maxillary Contraction Treated with Rapid Maxillary Expansion. A Prospective Pilot Study

2018 ◽  
Vol 42 (1) ◽  
pp. 27-31 ◽  
Author(s):  
Luca Di Vece ◽  
Tiziana Doldo ◽  
Giacomo Faleri ◽  
Maria Picciotti ◽  
Lorenzo Salerni ◽  
...  
Keyword(s):  
Rapid Maxillary Expansion ◽  
Nasal Resistance ◽  
Maxillary Expansion ◽  
Upper Airways ◽  
Nasal Airways ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Maxillary Constriction ◽  
Optic Endoscopy ◽  
Spearman’S Correlation

Objective: The aim of this study was to evaluate through nasal fiber optic endoscopy and rhinomanometry the patency of upper nasal airways in patients treated with rapid palatal expansion Study design: 30 patients (12 males and 18 females) aged 7–11 years with transverse maxillary constriction underwent rhinomanometric and fiberoptic examination before (T0) and after rapid palatal expansion (T1).The amount of nasopharynx obstruction was quantified with reference to the full choanal surface. Nasal resistance was recorded separately for right and left sides, and combined for both sides. The differences in nasopharynx obstruction and in nasal resistance between T0 and T1 were statistically evaluated. Results: The amount of nasopharynx obstruction significantly decreased after palatal expansion (p<0.001). Total nasal inspiration and expiration resistance significantly decreased at T1 (p<0.001). The reduction ranged between 0. 23 and 0. 66 Pa/cm3/s for inspiration and between 0. 20 and 0,.58 Pa/cm3/s for expiration. A statistically significant positive correlation existed between the T1-T0 differences in the amount of nasopharynx obstruction and the T1-T0 differences in expiration nasal airway resistance (Spearman's correlation coefficient rho = 0.38; p = 0.03). Conclusions: Rapid maxillary expansion has an influence on nasal resistance and improves the patency of upper airways in patients with minor or moderate breathing problems.

scholarly journals Evaluation of Cervical Posture Following Rapid Maxillary Expansion: A Review of Literature

2014 ◽  
Vol 8 (1) ◽  
pp. 20-27 ◽  
Author(s):  
Eleonora Ortu ◽  
Davide Pietropaoli ◽  
Maurizio Ortu ◽  
Mario Giannoni ◽  
Annalisa Monaco
Keyword(s):  
Growth Period ◽  
Conclusive Evidence ◽  
Rapid Maxillary Expansion ◽  
Review Of Literature ◽  
Maxillary Expansion ◽  
Exclusion Criteria ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Manual Search ◽  
Cervical Posture

Objective: The aim of this article is to elucidate the state of the art about how rapid maxillary expansion (RME) produces changes in natural head position (NHP) in terms of cephalometric angles or inclinometer data during the growth period, according to the available literature. Methods: Electronic search was done from January 2002 to June 2012 on PubMed, Cochrane and Scopus databases; in addition manual search was conducted as well. According to keywords, eleven papers were eligible for our purpose, but definitely six papers were selected in agreement with the inclusion/exclusion criteria. Conclusions: The current literature suggests that the potential relationship between RME and NHP is still unclear. In fact, although the change in the position of the head after the rapid palatal expansion is evident clinically, current orthodontic literature does not provide conclusive evidence about the nature of this relationship

scholarly journals Pain Reduction during Rapid Palatal Expansion Due to LED Photobiomodulation Irradiation: A Randomized Clinical Trial

Life ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 37
Author(s):  
Gianluigi Caccianiga ◽  
Paolo Caccianiga ◽  
Marco Baldoni ◽  
Antonino Lo Giudice ◽  
Letizia Perillo ◽  
...  
Keyword(s):  
Young Patients ◽  
Pain Reduction ◽  
Rapid Maxillary Expansion ◽  
Skeletal Age ◽  
Control Group ◽  
Time Interval ◽  
Maxillary Expansion ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Experimental Group

Objective: The purpose of this research is to assess the analgesic efficiency of Photobiomodulation (PBM) in pain reduction in young patients during rapid maxillary expansion therapy. Materials and Methods: Thirty patients were included and allocated to an experimental group [Rapid Palatal Expansion (RPE) and PBM] and a control group (RPE only) at random. Inclusion criteria were skeletal age from CVS1 to CVS3, examined on the cephalometric lateral teleradiography, with cervical vertebra staging and completed eruption of upper first molar. Exclusion criteria were previous orthodontic treatment, bone disease, disability, or skeletal age from CVS4. Patients referred the pain they felt using a Numerical scale rate (NRS), ranging from 0 to 10, with specific intervals of time: 6 h, 12 h, 24 h, and from days 2 to 7. The Wilcoxon-Mann-Whitney test was used to evaluate differences in NRS reported values between the two groups. Results: The final sample included 30 patients, 14 males and 16 females, with a mean age of 7.8 ± 1.2 years. The pain that was felt at each time interval and the maximum score of pain were significantly lower in the experimental group (p < 0.05) and decreased faster in the experimental group, with a score test near to 0 after 2/3 days. Conclusions: PBM is efficient in reducing the intensity and the time of pain felt by young patients that undergo rapid maxillary expansion.

Calculations used for assessment of rapid maxillary expansion

ORL ro ◽  
2016 ◽  
Vol 1 (1) ◽  
pp. 24-26
Author(s):  
Ruxandra Bartok ◽  
Bogdan Dimitriu Dimitriu ◽  
Constantin Vârlan ◽  
Radu Stanciu ◽  
Georgiana Moldoveanu ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Elasticity Modulus ◽  
Rapid Maxillary Expansion ◽  
Laboratory Animals ◽  
Maxillary Expansion ◽  
Literature Reference ◽  
Bone Changes ◽  
Upper Jaw ◽  
Materials Used

Rapid maxillary expansion is defined as the release of medio-palatine suture using an orthopedic forces. The role of this procedure is to expand  the upper jaw in order to achieve the  broadening of the upper arch. This study was initiated to quantify the effects of disjunction and post- treatment bone changes, after an adequate contention which lasted for three weeks. This study  is  carried on laboratory animals (common breed rabbit) to determine tensile strength and the elasticity modulus of  biological materials  used in orthdodontics. The results of the study are consistent with those reported in the literature reference.  

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