scholarly journals Effects of rapid maxillary expansion on nasal mucociliary clearance

2015 ◽  
Vol 86 (2) ◽  
pp. 250-254
Author(s):  
Hasan Babacan ◽  
Cenk Doruk ◽  
Ismail Onder Uysal ◽  
Salim Yuce
Keyword(s):  
Orthodontic Treatment ◽  
Mucociliary Clearance ◽  
Systemic Disease ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Maxillary Expansion ◽  
Positive Effects ◽  
Significant Difference ◽  
Orthodontic Patients ◽  
Nasal Mucociliary Clearance

ABSTRACT Objective:  To evaluate the changes in nasal mucociliary clearance in orthodontic patients after rapid maxillary expansion (RME) therapy. Materials and Methods:  Forty-two children (25 boys and 17 girls) participated in this study. The RME group consisted of 21 patients (mean age, 13.8 years), who had undergone RME at the initiation of orthodontic treatment. The control group consisted of 21 subjects (mean age, 13.6 years), who were attending the department of orthodontics for active orthodontic treatment. The nasal mucociliary clearance was assessed by the saccharin test. Saccharin transit times (STTs) were measured for each treated subject before expansion (T1), after RME (T2), and after a 3-month retention period (T3). Records were obtained at the same time intervals for each group. Results:  The STT decreased significantly in the RME group after expansion and retention (P < .05). A statistically significant difference was found when the STTs of the control and RME groups were compared after expansion and retention (P < .05). Conclusions:  The STTs of young orthodontic patients with maxillary narrowness and without any history of nasal or systemic disease were within normal limits. However, RME increased the mucociliary clearance in patients who had maxillary narrowness, having positive effects on nasal physiology and increasing nasal cavity volume.

scholarly journals Changes in the Upper and Lower Pharyngeal Airway Spaces Associated with Rapid Maxillary Expansion

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Fitin Aloufi ◽  
Charles B. Preston ◽  
Khalid H. Zawawi
Keyword(s):  
Orthodontic Treatment ◽  
Upper Airway ◽  
Rapid Maxillary Expansion ◽  
Lower Airway ◽  
Control Group ◽  
Maxillary Expansion ◽  
Pharyngeal Airway ◽  
Significant Difference ◽  
And Gender ◽  
Maxillary Constriction

Objectives. The primary objectives of this retrospective study were first to compare the upper and lower pharyngeal airway spaces between orthodontic patients with and without maxillary constriction and second to evaluate the effect of rapid maxillary expansion (RME) on these airway spaces. A secondary objective was to compare the mode of breathing between groups. Materials and Methods. The experimental (RME) group consisted of 30 patients (mean age, years, 16 boys and 14 girls) with maxillary constriction who were treated with hyrax-type RME. The control group comprised the records of age- and gender matched patients (mean age, years, 16 boys and 14 girls) with no maxillary constriction but requiring nonextraction comprehensive orthodontic treatment. Cephalometric measurements in the sagittal dimension of upper and lower airway spaces for the initial and final records were recorded. Mode of breathing and length of treatment were also compared. Results. The sagittal dimension of the upper airway increased significantly in the RME group ( mm) compared to the control group ( mm), . However, there was no significant difference in the lower pharyngeal airway measurement between the RME group () and the control group (), . There was no significant difference with respect to mode of breathing between the two groups (). Conclusion. Rapid maxillary expansion (RME) during orthodontic treatment may have a positive effect on the upper pharyngeal airway, with no significant change on the lower pharyngeal airway.

The evaluation of nasal mucociliary clearance in patients with Helicobacter pylori infection

2019 ◽  
Vol 133 (03) ◽  
pp. 220-223
Author(s):  
S Üstün Bezgin ◽  
T Çakabay ◽  
K Irak ◽  
M Koçyiğit ◽  
B Serin Keskineğe ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Mucociliary Clearance ◽  
Endoscopic Examination ◽  
Control Group ◽  
Clearance Time ◽  
Saccharine Test ◽  
Significant Difference ◽  
And Gender ◽  
H Pylori ◽  
Nasal Mucociliary Clearance

AbstractObjectiveThis study aimed to examine nasal mucociliary clearance time in patients with Helicobacter pylori infection.MethodsFifty patients who were newly diagnosed with H pylori infection using gastric biopsy in the gastroenterology out-patient clinic, and 50 age- and gender-matched healthy adults who were admitted to the otorhinolaryngology out-patient clinic, were included in this study. After an otorhinolaryngological examination (anterior rhinoscopy and nasal endoscopic examination), the nasal mucociliary clearance time of each subject was calculated using the saccharine test.ResultsThe mean mucociliary clearance time was 06:29 ± 3:31 minutes (range, 00:55–15:19 minutes) in the control group and 10:12 ± 06:09 minutes (range, 01:28–32:00 minutes) in the study group. Comparisons of the two groups revealed a statistically significant difference (p = 0.002).ConclusionNasal mucociliary clearance time was significantly increased in patients with H pylori infection. The results suggest that H pylori infection may have an unfavourable effect on nasal mucociliary clearance.

scholarly journals Rapid maxillary expansion: Do banded teeth develop more external root resorption than non-banded anchorage teeth?

2015 ◽  
Vol 86 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Débora C Martins ◽  
Bernardo Q Souki ◽  
Paula L Cheib ◽  
Gerluza A.B Silva ◽  
Igor D.G Reis ◽  
...  
Keyword(s):  
Root Resorption ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Maxillary Expansion ◽  
Orthodontic Anchorage ◽  
External Root Resorption ◽  
Significant Difference ◽  
Band Group ◽  
Orthodontic Forces ◽  
Root Surfaces

ABSTRACT Objective:  To compare external root resorption (ERR) when bands and wires are used as orthodontic anchorage during rapid maxillary expansion (RME). Materials and Methods:  Histologic analysis was performed on 108 sites from 18 maxillary first premolars and on 36 sites from six mandibular first premolars in nine subjects (mean age = 15.2 ± 1.4 years) 3 months after RME. Maxillary teeth were pooled into two groups (n = 54 each) according to the type of orthodontic anchorage (band group [BG] vs wire group [WG]). Anchorage type was randomly chosen in a split-mouth design. Mandibular first premolars, which were not subjected to orthodontic forces, were used as the control group (CG). Results:  All premolars in the BG and WG showed ERR at the level of the cementum and dentin. Repair with cementum cells was observed in all resorption areas, but complete repair was rarely found. No statistically significant difference was found between the BG and WG with regard to the ERR. No association was found between the root height position (middle or cervical third) and the incidence of ERR. Buccal root surfaces showed a higher amount of ERR compared with the palatal and interproximal surfaces. ERR was not found in any teeth in the CG. Conclusion:  All maxillary first premolars subjected to RME showed ERR and partial cementum repair. Banded teeth did not develop more ERR than nonbanded anchorage teeth.

scholarly journals Evaluation of nasal mucociliary clearance in rheumatoid arthritis: a comparative analysis using saccharin test

2017 ◽  
Vol 5 (11) ◽  
pp. 5026 ◽  
Author(s):  
Shelja Deswal ◽  
Jyoti Yadav ◽  
Mohit Deswal ◽  
Harpreet Singh
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Duration ◽  
Mucociliary Clearance ◽  
Systemic Disease ◽  
Unknown Etiology ◽  
Control Group ◽  
Ciliary Activity ◽  
Multisystem Disease ◽  
Organic Particles ◽  
Nasal Mucociliary Clearance

Background: Rheumatoid arthritis (RA) is a chronic multisystem disease of unknown etiology characterized by persistent inflammatory synovitis, usually involving peripheral joints in a symmetric distribution. RA is a systemic disease often associated with cutaneous and organ-specific extra-articular manifestations the mucociliary clearance system protects the lower respiratory system by trapping and removing inhaled pathogenic viruses and bacteria, in addition to nontoxic and toxic particulates (e.g., pollen, ash, mineral dust, mold spores, and organic particles), from the lungs. Effective clearance requires both ciliary activity and the appropriate balance of periciliary fluid and mucus.Methods: This was a case control study conducted in the Department of Physiology, Pt. B.D. Sharma PGIMS, Rohtak in 50 females of age group 30-50 years. Control group comprised of 25 healthy volunteer females while study group comprised of 25 rheumatoid arthritis female patients with disease duration of more than five years. Proven cases of RA (as per 1987 ACR criteria) were taken with disease duration of more than five years from Rheumatology clinic of Pt. B.D. Sharma PGIMS, Rohtak. Nasal mucociliary clearance time was evaluated by saccharin method.Results: The results of our study showed abnormal mucociliary clearance in rheumatoid arthritis patients.Conclusions: The study shows an abnormal mucociliary clearance in rheumatoid arthritis patients. Impairment of mucociliary clearance seems to be the result of qualitative and quantitative alterations in respiratory secretions.

The effect of vidian neurectomy on nasal mucociliary clearance

1988 ◽  
Vol 102 (10) ◽  
pp. 894-895 ◽  
Author(s):  
M. A. Greenstone ◽  
P. J. Stanley ◽  
I. S. Mackay ◽  
P. J. Cole
Keyword(s):  
Neural Control ◽  
Mucociliary Clearance ◽  
Control Group ◽  
Mucociliary Transport ◽  
Vasomotor Rhinitis ◽  
Physiological Factors ◽  
Tear Secretion ◽  
Vidian Neurectomy ◽  
Significant Difference ◽  
Nasal Mucociliary Clearance

AbstractThe physiological factors controlling mucociliary transport are largely unknown. Nasal mucociliary clearance was measuredusing the saccharin test in seven patients who had previously undergone vidian neurectomy for vasomotor rhinitis. Persistent denervation was suggested by impaired tear secretion. The control group consisted of thirty-four patients with vasomotor rhinitis who had not had surgery. There was no significant difference in clearance times between the two groups, suggesting that mucociliary transport is well preservedin the absence of neural control.

scholarly journals Three-dimensional evaluation of upper airway following rapid maxillary expansion: A CBCT study

2013 ◽  
Vol 84 (2) ◽  
pp. 265-273 ◽  
Author(s):  
Hakan El ◽  
Juan Martin Palomo
Keyword(s):  
Three Dimensional ◽  
Upper Airway ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Nasal Passage ◽  
Maxillary Expansion ◽  
Oropharyngeal Airway ◽  
Significant Difference ◽  
Group A ◽  
Maxillary Constriction

ABSTRACT Objectives: To evaluate, by using cone beam computed tomography, the skeletal, dental, oropharyngeal (OP) airway volume, and nasal passage (NP) volume changes that occur after rapid maxillary expansion (RME). Materials and Methods: Two groups were selected, each with 35 patients (15 males, 20 females), an RME group (mean age, 14.02 ± 1.46 years) and a control group (mean age, 14.10 ± 1.44 years). The RME group consisted of patients with maxillary constriction who were treated with Hyrax palatal expanders, and the control group comprised age- and sex-matched patients who underwent comprehensive orthodontic treatment without the use of a rapid maxillary expander. Results: All of the transverse skeletal (medial orbital width, lateral nasal width, maxillary width, and mandibular width) and interdental (intermolar, interpremolar, and intercanine) parameters were significantly enlarged in the RME group. A statistically significant increase in airway variables was seen in both groups between pretreatment (T0) and final records (T1). The mean increase of NP airway volume for the RME group (1719.9 ± 1510.7 mm3) was twofold compared with the control group (813.6 ± 1006.7 mm3), and no intergroup significant difference was found for the OP volume. Conclusions: Rapid maxillary expansion creates a significant increase in nasal passage airway volume but no significant change in the oropharyngeal airway volume.

scholarly journals Short-term and long-term effects of rapid maxillary expansion on the nasal soft and hard tissue:

2020 ◽  
Vol 91 (1) ◽  
pp. 46-53
Author(s):  
Cassie T. Truong ◽  
Hyeran H. Jeon ◽  
Puttipong Sripinun ◽  
Ann Tierney ◽  
Normand S. Boucher
Keyword(s):  
Normal Growth ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Long Term Effects ◽  
Maxillary Expansion ◽  
Hard Tissue ◽  
Alar Base ◽  
Significant Difference ◽  
Term Evaluation

ABSTRACT Objectives To evaluate nasal soft and hard tissue changes immediately post–rapid maxillary expansion (RME) and to assess the stability of these changes using cone beam computed tomography (CBCT). Materials and Methods A total of 35 treatment group (TG) patients (18 girls, 17 boys; 9.39 ± 1.4) had a pre-RME CBCT and a post-RME CBCT approximately 66 days after expansion, and 25 patients had a follow-up CBCT 2.84 years later. A total of 28 control group (CG; no RME) patients (16 girls, 12 boys; 8.81 ± 1.6) had an initial CBCT and a CBCT an average of 2.25 years later. Soft and hard tissue nasal landmarks were measured in transverse, sagittal, and coronal planes of space on CBCT scans. Differences within the same group were evaluated by paired t-tests or Wilcoxon signed-rank tests. Long-term comparisons between TG and CG were evaluated by independent-sample t-tests or Wilcoxon rank-sum tests. Results Immediately post-RME, there were statistically significant mean increases of 1.6 mm of alar base width, 1.77 mm of pyriform height, and 3.57 mm of pyriform width (P < .05). CG showed the significant increases over 2.25 years (P < .001). Compared with CG, the long-term evaluation of TG demonstrated only pyriform height and pyriform width showed a statistically significant difference (P < .01). Conclusions Although RME produced some significant increase on the nasal soft tissue immediately after expansion, it regressed to the mean of normal growth and development over time. However, long-term evaluation of TG compared with CG showed only pyriform height and pyriform width to be affected by RME.

scholarly journals Nonsurgical miniscrew-assisted rapid maxillary expansion results in acceptable stability in young adults

2016 ◽  
Vol 86 (5) ◽  
pp. 713-720 ◽  
Author(s):  
Sung-Hwan Choi ◽  
Kyung-Keun Shi ◽  
Jung-Yul Cha ◽  
Young-Chel Park ◽  
Kee-Joon Lee
Keyword(s):  
Young Adults ◽  
Treatment Modality ◽  
Orthodontic Treatment ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Initial Examination ◽  
The Stability ◽  
Maxillary Deficiency ◽  
Time Point

ABSTRACT Objective:  To evaluate the stability of nonsurgical miniscrew-assisted rapid maxillary expansion (MARME) in young adults with a transverse maxillary deficiency. Materials and Methods:  From a total of 69 adult patients who underwent MARME followed by orthodontic treatment with a straight-wire appliance, 20 patients (mean age, 20.9 ± 2.9 years) with follow-up records (mean, 30.2 ± 13.2 months) after debonding were selected. Posteroanterior cephalometric records and dental casts were obtained at the initial examination (T0), immediately after MARME removal (T1), immediately after debonding (T2), and at posttreatment follow-up (T3). Results:  Suture separation was observed in 86.96% of subjects (60/69). An increase in the maxillary width (J-J; 1.92 mm) accounted for 43.34% of the total expansion with regard to the intermolar width (IMW) increase (4.43 mm; P < .001) at T2. The amounts of J-J and IMW posttreatment changes were −0.07 mm (P > .05) and −0.42 mm (P  =  .01), respectively, during retention. The postexpansion change in middle alveolus width increased with age (P < .05). The postexpansion change of interpremolar width (IPMW) was positively correlated with the amount of IPMW expansion (P < .05) but not with IMW. The changes of the clinical crown heights in the maxillary canines, first premolars, and first molars were not significant at each time point. Conclusions:  Nonsurgical MARME can be a clinically acceptable and stable treatment modality for young adults with a transverse maxillary deficiency.

scholarly journals Effects of rapid maxillary expansion in cleft patients resulting from the use of two different expanders

2016 ◽  
Vol 21 (6) ◽  
pp. 82-90 ◽  
Author(s):  
Daniel Santos Fonseca Figueiredo ◽  
Lucas Cardinal ◽  
Flávia Uchôa Costa Bartolomeo ◽  
Juan Martin Palomo ◽  
Martinho Campolina Rebello Horta ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Rapid Maxillary Expansion ◽  
Cone Beam ◽  
Tomographic Image ◽  
Maxillary Expansion ◽  
Downward Movement ◽  
Computed Tomographic ◽  
Significant Difference ◽  
Maxillary Region

ABSTRACT Objective: The aim of this study was to evaluate the skeletal and dental effects of rapid maxillary expansion (RME) in cleft patients using two types of expanders. Methods: Twenty unilateral cleft lip and palate patients were randomly divided into two groups, according to the type of expander used: (I) modified Hyrax and (II) inverted Mini-Hyrax. A pretreatment cone-beam computed tomographic image (T0) was taken as part of the initial orthodontic records and three months after RME, for bone graft planning (T1). Results: In general, there was no significant difference among groups (p > 0.05). Both showed a significant transverse maxillary expansion (p < 0.05) and no significant forward and/or downward movement of the maxilla (p > 0.05). There was greater dental crown than apical expansion. Maxillary posterior expansion tended to be larger than anterior opening (p < 0.05). Cleft and non-cleft sides were symmetrically expanded and there was no difference in dental tipping between both sides (p > 0.05). Conclusions: The appliances tested are effective in the transverse expansion of the maxilla. However, these appliances should be better indicated to cleft cases also presenting posterior transverse discrepancy, since there was greater expansion in the posterior maxillary region than in the anterior one.

Sign in / Sign up

Export Citation Format

Share Document