Alterações no volume nasal de pacientes submetidos a disjunção da maxila

Muniz, Renata da Fonseca Lacerda e; Cappellette, Mario; Carlini, Daniela

doi:10.1590/s1415-54192008000100007

Cited by 4 publications

(4 citation statements)

References 6 publications

(15 reference statements)

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“…Additionally, it also has the potential to alter the internal dimensions of the nasal cavity, promoting reduction of nasal resistance, increase in air flow and even a favorable change at the patient breathing pattern. 1,[5][6][7][8][9][10][11][12][13] Most studies related to this therapy have been conducted on the basis of occlusal and cephalometric radiographs, especially due to the fact that these exams are important for orthodontic treatment planning and are commonly part of the set of exams requested for this purpose. 1,5,8,[14][15][16][17][18][19][20] Nevertheless, in spite of being capable of providing great information, radiographs are two-dimensional images of a three-dimensional structure.…”

Section: Introductionmentioning

confidence: 99%

“…Although many studies have been conducted about RME, there is still no consensus in the literature about the real effects of this procedure on the respiratory pattern. 6 , 9 , 11 , 13 , 17 , 22 - 25 Methodological difficulties and lack of standardization of research evaluating the morphological changes that actually occur in the nasal cavity are common limitations. Currently, with the advent of cone beam computed tomography (CBCT), these problems have been minimized, since the CBCT enables acquisition of efficient and precise reproductions of anatomical structures.…”

Section: Introductionmentioning

confidence: 99%

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Effect of rapid maxillary expansion on nasal cavity assessed with cone-beam computed tomography

Caldas

Takeshita

Machado

et al. 2020

Dental Press J. Orthod.

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Introduction: Rapid maxillary expansion (RME) is assumed as a well established procedure; although, some effects on facial complex are not yet fully understood. Objective: The aim of this research was to verify, using cone-beam computed tomography, the effect on linear dimensions of the nasal cavity. Methods: Sample consisted of twenty patients aged 7 to 16 years, with skeletal deformity that justified the use of CT scans, and who required the RME as part of the orthodontic treatment planning. Scans were taken before clinical procedures were performed (T0) and after stabilizing the expander screw (T1). Dolphin Imaging v. 11.5 3D software was used to measure six areas on nasal cavity: three at the anterior portion (upper, middle, and lower) and other three at the posterior portion (also upper, middle, and lower). Data were statistically treated using Shapiro-Wilk test to verify normality. Differences between T0 and T1 were calculated using the Spearman correlation and paired Student’s t-test, with a significance level of 5%. Results: All linear measurements presented a significant increase (p< 0.05) after RME, both in the anterior and posterior regions, suggesting some parallelism on the opening pattern, especially at the lower portion (p< 0.001). Conclusions: RME was able to significantly modify the internal dimensions of the nasal cavity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of rapid maxillary expansion on nasal cavity assessed with cone-beam computed tomography

Caldas

Takeshita

Machado

et al. 2020

Dental Press J. Orthod.

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“…Since it was first introduced in 1860 in the United States, Angell’s technique has been validated by many other authors as it makes possible the splitting of the midpalatal suture while producing certain changes in the nasal cavity, which improve breathing. 1 , 3 - 8 , 11 , 14 , 17 …”

Section: Discussionmentioning

confidence: 99%

Impact of rapid maxillary expansion on nasomaxillary complex volume in mouth-breathers

Cappellette

Alves

Nagai

et al. 2017

Dental Press J. Orthod.

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Objective: To assess the volumetric changes that occur in the nasomaxillary complex of mouth-breathing patients with transverse maxillary deficiency subjected to rapid maxillary expansion (RME). Methods: This was a controlled, prospective intervention study involving 38 mouth-breathing patients presenting with transverse maxillary deficiency, regardless of malocclusion type or race. Twenty-three of them comprised the experimental group, which was composed of 11 (47.8%) boys, and 12 (52.2%) girls, with a mean age of 9.6 years, ranging from 6.4 to 14.2 years and standard deviation of 2.3 years; and 15 of them comprised the control group, composed of 9 (60%) boys and 6 (40%) girls with an mean age of 10.5 years, ranging from 8.0 to 13.6 years, and standard deviation of 1.9 years. All patients were scanned (CT) according to a standard protocol: Initial CT (T1), and CT three months thereafter (T2), and the patients in the experimental group were treated with RME using a Hyrax expander for the correction of maxillary deficiency during the T1-T2 interval. The CT scans were manipulated using Dolphin® Imaging version 11.7 software for total and partial volumetric assessment of the nasomaxillary complex. Results: The results revealed that in the experimental group there was a significant increase in the size of the structures of interest compared to the control group, both in general aspect and in specific regions. Conclusions: Rapid maxillary expansion (RME) provided a significant expansion in all the structures of the nasomaxillary complex (nasal cavity, oropharynx, right and left maxillary sinuses).

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“…Patients in the RAD and D groups underwent RME with the Hyrax® orthopedic appliance bonded to their teeth (upper molars and premolars) to induce separation of the maxilla in its medial portion, increasing its transverse measurement and consequently, uncrossing the bite, usually achieved within 15 days after appliance activation. 21 This moment was defined as T1.…”

Section: Rapid Maxillary Expansionmentioning

confidence: 99%

Rapid maxillary expansion and nasal patency in mouth breathing children with maxillary atresia due to or not due to allergic rhinitis

Solé

Carvalho

Cappellette

et al. 2023

Allergol Immunopathol

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Aim: To evaluate the effects of rapid maxillary expansion (RME) on nasal patency in mouth breathing (MB) children with maxillary atresia due to or not due to allergic rhinitis (AR) associated with asthma. Methods: Fifty-three MB children/adolescents (aged 7–14 years) with mixed or permanent dentition and maxillary atresia participated, with or without unilateral or bilateral crossbite. They formed the groups: RAD (AR + asthma; clinical treatment, RME); RAC (AR + asthma; clinical treatment, no RME); and D (mouth breathers; RME only). RAD and RAC patients received topical nasal corticosteroid and/or systemic H1 antihistamine (continuous use) and environmental exposure control. All were evaluated before RME (T1) and 6 months after (T2) with the CARATkids score, acoustic rhinometry, and nasal cavity computed tomography (CT). Patients RAD and D underwent RME (Hyrax® orthopedic appliance). Results: A significant reduction in the CARATkids score occurred in the RAD (−4.06; p < 0.05), similarly when patient and parent/guardian scores were evaluated (−3.28 and −3.16, respectively). Acoustic rhinometry (V5) showed increased nasal volume in all groups, significantly higher in RAD patients than in RAC and D (0.99 × 0.71 × 0.69 cm3, respectively). CT of the nasal cavity documented increased volume in all three groups, with no significant differences between them. Conclusion: In MB patients with AR, asthma, and maxillary atresia, RME increased nasal cavity volume and improved respiratory symptoms. However, it should not be used as the only treatment for managing patients with respiratory allergies.

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Alterações no volume nasal de pacientes submetidos a disjunção da maxila

Cited by 4 publications

References 6 publications

Effect of rapid maxillary expansion on nasal cavity assessed with cone-beam computed tomography

Effect of rapid maxillary expansion on nasal cavity assessed with cone-beam computed tomography

Impact of rapid maxillary expansion on nasomaxillary complex volume in mouth-breathers

Rapid maxillary expansion and nasal patency in mouth breathing children with maxillary atresia due to or not due to allergic rhinitis

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