scholarly journals Assessment of respiratory muscle strength and airflow before and after microimplant-assisted rapid palatal expansion

2019 ◽  
Vol 89 (5) ◽  
pp. 713-720 ◽  
Author(s):  
Camilla Juliana Storto ◽  
Aguinaldo Silva Garcez ◽  
Hideo Suzuki ◽  
Karla Garcez Cusmanich ◽  
Islam Elkenawy ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Nasal Cavity ◽  
Respiratory Muscle ◽  
Alveolar Bone ◽  
Peak Flow ◽  
Respiratory Muscle Strength ◽  
Maxillary Expansion ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Before And After

ABSTRACT Objectives: To assess alterations in respiratory muscle strength and inspiratory and expiratory peak flow, as well as skeletal and dental changes in patients diagnosed with transverse maxillary deficiency before and after microimplant-assisted rapid maxillary expansion (MARPE). Materials and Methods: Twenty patients (13 female and 7 male) were assessed by respiratory tests in three different periods: T0 initial, T1 immediately after expansion, and T2 after 5 months. Tests included: maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP), oral expiratory peak flow, and inspiratory nasal flow. Cone-beam computed tomography measurements were performed in the maxillary arch, nasal cavity, and airway before and immediately after expansion. Results: There was a significant increase in MIP between T0 and T2 and MEP between T0 and T1 (P<.05). Oral and nasal peak flow increased immediately after and 5 months later, especially in patients with initial signs of airway obstruction (P<.05). In addition, after expansion there was a significant enlargement of the nasal cavity, alveolar bone, and interdental widths at the premolar and molar region. Molars tipped buccally (P<.05) but no difference was found in premolar inclination. MARPE increased airway volume significantly. Conclusions: Skeletal changes promoted by MARPE directly affected airway volume, resulting in a significant improvement in muscle strength and nasal and oral peak flow.

scholarly journals Skeletal, Dentoalveolar, and Periodontal Changes of Skeletally Matured Patients with Maxillary Deficiency Treated with Microimplant-assisted Rapid Palatal Expansion Appliances: A Pilot Study

2018 ◽  
Vol 8 ◽  
pp. 71-85 ◽  
Author(s):  
Peter Ngan ◽  
Uyen Kelly Nguyen ◽  
Tung Nguyen ◽  
Timothy Tremont ◽  
Chris Martin
Keyword(s):  
Alveolar Bone ◽  
Adult Patients ◽  
Matched Pair ◽  
Limited Information ◽  
Maxillary Expansion ◽  
Midpalatal Suture ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Before And After ◽  
Suture Opening

Introduction Microimplant-assisted rapid palatal expansion (MARPE) has recently been offered to adult patients for correcting maxillary transverse deficiency. However, there is limited information in the literature on the success of this appliance and its skeletal and dental effects on skeletally matured patients. The purpose of this study was to investigate the immediate skeletal, dentoalveolar, and periodontal response to MARPE appliance using cone-beam computed tomography in a skeletally matured patient as assessed by the cervical vertebral maturation method. Materials and Methods Eight consecutively treated patients (2 females, 6 males; mean age of 21.9 ± 1.5 years) treated with a maxillary skeletal expander were included in the study. Measurements were taken before and after expansion to determine the amount of midpalatal suture opening, upper facial bony expansion, alveolar bone bending, dental tipping, and buccal bone thickness (BBT). Data were analyzed using a one-way ANOVA and matched-pair t-test (α = 0.05). Results Midpalatal suture separation was found in 100% of the patients with no dislodged microimplants. Total maxillary expansion was attributed to 41% skeletal, 12% alveolar bone bending, and 48% dental tipping. Pattern of midpalatal suture opening was found to be parallel in both the coronal and axial planes. On average, the absolute dental tipping ranged from 4.17° to 4.96° and the BBT was reduced by an average of 39% measured at the premolars and molars. Conclusions The MARPE appliance can be a clinically acceptable, nonsurgical treatment option for correcting mild to moderate maxillary transverse discrepancies for skeletally matured adult patients with a healthy periodontium.

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 Expiration Training Maneuver for Chronic Obstructive Pulmonary Disease with Congestive Heart Failure Grade II: A Case Report

2019 ◽  
Vol 7 (01) ◽  
pp. 28
Author(s):  
Nury Nusdwinuringtyas ◽  
Siti Chandra Widjanantie
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Muscle Strength ◽  
Pulmonary Disease ◽  
Respiratory Muscle ◽  
Walking Distance ◽  
Chronic Obstructive ◽  
Respiratory Muscle Strength ◽  
Obstructive Pulmonary Disease ◽  
Before And After ◽  
Grade Ii

Introduction: Chronic Obstructive Pulmonary Disease (COPD) was characteristic by the inflammatory process in the airway which causes air trapping and hyperinflation, then followed by decreasing the respiratory muscle strength. Breathing training using the positive expiratory pressure (PEP) increasing respiratory muscle strength.Methods: A case presentation of a male, age was 60 years old diagnosed as COPD by The Global Initiative for Chronic Obstructive Lung Disease (GOLD) grade 4 group D, and Chronic Heart Failure (CHF) grade II, with complication of excessive phlegm, underweight, and weakness of respiratory muscle, have PEP for 8 weeks.Results: Spirometry evaluation before and after eight week of PEP have found; FEV1 22.12 and 22.42%, FVC 34.24 and 56%, FEV1/FVC 76.8 and 64%. Respiratory muscle strength before and after PEP showed the Muscle Inspiratory Pressure (MIP) 46 and 71 cmH2O, Muscle Expiratory Pressure (MEP) 48 and 104 cmH2O.The values of Six Minute Walk Test (6MWT) evaluation by BORG modified scale before and after PEP were 11 and 13 ( efforts), 2 and 3 (dyspnea), 0 and 1 (Leg Fatigue). The six-minute walking distance (6MWD) before and after PED were 170 and 190 m, equation reference with Nury’s formula showed percentage prediction before and after PEP respectively 29.2 and 32%, VO2Max; 4.96 and 6L, METs; 1.41 and 1.7. The St GeorgeRespiratory Questionnaire (SGRQ) before and after PEP were 20.6 and 49.5% (symptom), 86.6 and 45.1% (activity), 45.5 and 18.4% (impact) and 53.6 and 42% for total.Conclusion: Positive airway pressure exercise had beneficial effect on reducing air-trapping process in COPD and increasing the respiratory muscle strength for both expiratory and inspiratory muscle strength.Keywords: Chronic obstructive pulmonary disease, positive expiratory pressure device, respiratory muscle strength, six minutes walking distance

Expiration Training Maneuver for Chronic Obstructive Pulmonary Disease with Congestive Heart Failure Grade II: A Case Report

2019 ◽  
pp. 28-35
Author(s):  
Nury Nusdwinuringtyas ◽  
Siti Chandra Widjanantie
Keyword(s):  
Heart Failure ◽  
Chronic Obstructive Pulmonary Disease ◽  
Muscle Strength ◽  
Respiratory Muscle ◽  
Chronic Obstructive ◽  
Respiratory Muscle Strength ◽  
Air Trapping ◽  
Obstructive Pulmonary Disease ◽  
Before And After ◽  
Grade Ii

Chronic Obstructive Pulmonary Disease (COPD) was characteristic by the inflammatory process in the airway which causes air trapping and hyperinflation, then followed by decreasing the respiratory muscle strength. Breathing training using the positive expiratory pressure (PEP) increasing respiratory muscle strength. Methods: A case presentation of a male, age was 60 years old diagnosed as COPD by The Global Initiative for Chronic Obstructive Lung Disease (GOLD) grade 4 group D, and Chronic Heart Failure (CHF) grade II, with complication of excessive phlegm, underweight, and weakness of respiratory muscle, have PEP for 8 weeks. Results: Spirometry evaluation before and after eight week of PEP have found; FEV1 22.12 and 22.42%,FVC 34.24 and 56%, FEV1/FVC 76.8 and 64%. Respiratory muscle strength before and after PEP showed the Muscle Inspiratory Pressure (MIP) 46 and 71 cmH2O, Muscle Expiratory Pressure (MEP) 48 and 104 cmH2O. The values of Six Minute Walk Test (6MWT) evaluation by BORG modified scale before and after PEP were 11 and 13 ( efforts), 2 and 3 (dyspnea), 0 and 1 (Leg Fatigue). The six-minute walking distance (6MWD) before and after PED were 170 and 190 m, equation reference with Nury’s formula showed percentage prediction before and after PEP respectively 29.2 and 32%, VO2Max; 4.96 and 6L, METs; 1.41 and 1.7. The St George Respiratory Questionnaire (SGRQ) before and after PEP were 20.6 and 49.5% (symptom), 86.6 and 45.1% (activity), 45.5 and 18.4% (impact) and 53.6 and 42% for total. Conclusion: Positive airway pressure exercise had beneficial effect on reducing air-trapping process in COPD and increasing the respiratory muscle strength for both expiratory and inspiratory muscle strength

Respiratory Muscle Strength in Hyperthyroidism before and after Treatment

1992 ◽  
Vol 146 (4) ◽  
pp. 1025-1029 ◽  
Author(s):  
Nikolaos M. Siafakas ◽  
Ira Milona ◽  
Vasiliki Salesiotou ◽  
Vasiliki Filaditaki ◽  
Nikolaos Tzanakis ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Respiratory Muscle ◽  
Respiratory Muscle Strength ◽  
Before And After

scholarly journals Respiratory Muscle Performance and the Perception of Dyspnea in Parkinson's Disease

2002 ◽  
Vol 29 (1) ◽  
pp. 68-72 ◽  
Author(s):  
Paltiel Weiner ◽  
Rivka Inzelberg ◽  
Avi Davidovich ◽  
Puiu Nisipeanu ◽  
Rasmi Magadle ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Muscle Strength ◽  
Respiratory Muscle ◽  
Respiratory Muscles ◽  
Normal Subjects ◽  
Forced Expiratory Volume ◽  
Muscle Performance ◽  
Respiratory Muscle Strength ◽  
Before And After

Background:Pulmonary and respiratory muscle function impairment are common in patients with Parkinson's disease (PD). However, dyspnea is not a frequent complaint among these patients, although it is well documented that the intensity of dyspnea is related to the activity and the strength of the respiratory muscles.Patients and Methods:We studied pulmonary function, respiratory muscle strength and endurance and the perception of dyspnea (POD) in 20 patients with PD (stage II and III Hoehn and Yahr scale) before and after their first daily L-dopa dose. Respiratory muscle strength was assessed by measuring the maximal inspiratory and expiratory mouth pressures (PImax and PEmax), at residual volume (RV) and total lung capacity (TLC) respectively. The POD was measured while the subject breathed against progressive load and dyspnea was rated using a visual analog scale.Results:Respiratory muscle strength and endurance were decreased and the POD was increased during the off medication period compared to normal subjects. There was a nonsignificant trend to an increase in PImax, PEmax and endurance after L-dopa intake. The POD of PD patients decreased (p<0.05) following medication, although, it remained increased (p<0.01) as compared to the normal subjects. Even if patients had spirometry data showing a mild restrictive pattern, before medication, both forced vital capacity (FVC) and forced expiratory volume (FEV)1 remained almost identical after L-dopa intake.Conclusions:Patients with PD have higher POD, compared to normal subjects and this increased perception is attenuated when the patients are on dopaminergic medication. The change in the POD is not related to changes in respiratory muscle performance or pulmonary functions. A central effect or a correction of uncoordinated respiratory movements by L-dopa may contribute to the decrease in POD following L-dopa treatment.

scholarly journals Effects of rapid maxillary expansion on nasal cavity dimensions and airway resistance

2015 ◽  
Vol 2 ◽  
pp. 31-39
Author(s):  
Maria E. Tapia ◽  
Ursula Brethauer ◽  
Patricio Ulloa ◽  
Andrea Carcamo ◽  
Felipe Culaciati
Keyword(s):  
Ct Scan ◽  
Nasal Cavity ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Bite Block ◽  
Oral Breathing ◽  
Palatal Expansion ◽  
Before And After ◽  
The Right ◽  
Active Anterior Rhinomanometry

Background: Rapid maxillary expansion is a common treatment for posterior cross-bites that has also shown to improve nasal breathing.Methods: Thirteen oral breather patients with posterior cross-bite were studied. Treatment consisted in rapid maxillary expansion with a fully bonded appliance including a bite-block and a hyrax expansion screw. Before and after treatment, CT scans and active anterior rhinomanometry were performed to each patient. Data was analyzed with the non-parametric Wilcoxon statistical test and correlation between palatal expansion and increase of airflow in each patient was assessed.Results: The CT scan showed that transversal dimensions were significantly increased (P<0.001) in most areas after treatment, considering the right and left side separately. Rhinomanometry also showed statistical differences (P<0.001) in all parameters studied when compared before and after treatment. Positive correlation was observed between palatal expansion and increase of airflow.Conclusions: All patients improved oral breathing habit clinically and there is also statistical evidence that the nasal cavity increased its transversal dimensions, measured by CT scan and that patients increased their airflow through the nasal cavity, measured by rhinomanometry.

scholarly journals Safety and Effects of the Rapid Maxillary Expander on Temporomandibular Joint in Subjects Affected by Juvenile Idiopathic Arthritis: A Retrospective Study

Children ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 33
Author(s):  
Andrea Abate ◽  
Davide Cavagnetto ◽  
Francesca Maria Emilia Rusconi ◽  
Paolo Cressoni ◽  
Luca Esposito
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Nasal Cavity ◽  
Rapid Maxillary Expansion ◽  
T Test ◽  
Maxillary Expansion ◽  
Retrospective Case ◽  
Linear Measurements ◽  
Palatal Expansion ◽  
Mandibular Hypoplasia ◽  
Before And After

Background: In Juvenile Idiopathic Arthritis (JIA) temporo-mandibular joints are often affected causing skeletal and dental malocclusions. The most frequent condition is mandibular hypoplasia, that may be associated with maxillary hypoplasia. The aim of this retrospective case control study is to investigate the effects and the safety of rapid maxillary expansion (RME) in growing patients affected by JIA. It was evaluated whether RME could be performed without complications on TMJs of JIA patients using DC/TMD protocol, and naso-maxillary transversal parameters were compared with the ones obtained on healthy patients. Methods: Twenty-five patients affected by JIA that ceased to manifest TMJ (Temporo-Mandibular Joint) symptoms in the previous year were treated with RME to solve the maxillary transverse hypoplasia. Postero-anterior cephalometric tracings were collected before and after treatment; linear measurements were obtained to study maxillary and nasal cavity modifications. Data were compared to those of a similar group of twenty-five healthy patients. Paired t-test and Independent t-test were used to evaluate changes before and after treatment in each group and to perform a comparison between the groups. Results: All patients demonstrated a statistically significant increase in nasal cavity width, maxillary width and upper and lower intermolar width. No patients presented a worsening of their TMJs condition. Intragroup comparisons revealed significant changes of cephalometric measurements, but no difference was found when comparing JIA and healthy patients. Conclusions: Growing patients with JIA that ceased to show signs of active TMJ involvement for at least one year could be safely treated with RME, expecting similar benefits to those of healthy patients. Dentists and rheumatologists should be informed of safety and potential benefits of palatal expansion in JIA patients in order to improve the outcome of orthodontic treatment and reduce the indication for more invasive procedures (i.e., Surgical Assisted Rapid Maxillary Expansion).

scholarly journals Comparison of skeletal maxillary transverse deficiency treated by microimplant-assisted rapid palatal expansion and tooth-borne expansion during the post-pubertal growth spurt stage:

2020 ◽  
Vol 91 (1) ◽  
pp. 36-45
Author(s):  
Haichao Jia ◽  
Li Zhuang ◽  
Nan Zhang ◽  
Yuanyuan Bian ◽  
Song Li
Keyword(s):  
Alveolar Bone ◽  
Growth Spurt ◽  
Height Loss ◽  
Success Rates ◽  
Pubertal Growth Spurt ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Pubertal Growth ◽  
Before And After ◽  
Bone Height

ABSTRACT Objective To investigate the efficacy of microimplant-assisted rapid palatal expansion (MARPE) to treat skeletal maxillary discrepancies during the post-pubertal growth spurt stage. Materials and Methods Sixty patients with skeletal maxillary transverse deficiency during the post-pubertal growth spurt stage were randomly divided into MARPE and Hyrax groups. Thirty patients (mean age: 15.1 ± 1.6 years) were treated using the four-point MARPE appliance; 30 patients (mean age, 14.8 ± 1.5 years) were treated using the Hyrax expander. Cone beam computed tomography scans and dental casts were obtained before and after expansion. The data were analyzed using paired t-tests and independent t-tests. Results The success rates of midpalatal suture separation were 100% and 86.7% for MARPE and Hyrax groups, respectively. Palatal expansion and skeletal to dental ratio at the first molar level were greater in the MARPE group (3.82 mm and 61.4%, respectively) than in the Hyrax group (2.20 mm and 32.3%, respectively) (P &lt; .01). Reductions in buccal alveolar bone height and buccal tipping of the first molars were less in the MARPE group than in the Hyrax group (P &lt; .01). Conclusions MARPE enabled more predictable and greater skeletal expansion, as well as less buccal tipping and alveolar height loss on anchorage teeth. Thus, MARPE is a better alternative for patients with skeletal maxillary deficiency during the post-pubertal growth spurt stage.

Respiratory muscle fatigue after marathon running

1982 ◽  
Vol 52 (4) ◽  
pp. 821-824 ◽  
Author(s):  
J. Loke ◽  
D. A. Mahler ◽  
J. A. Virgulto
Keyword(s):  
Muscle Strength ◽  
Muscle Fatigue ◽  
Respiratory Muscle ◽  
Respiratory Muscles ◽  
Marathon Running ◽  
Respiratory Muscle Strength ◽  
Inspiratory Capacity ◽  
Respiratory Muscle Fatigue ◽  
Transdiaphragmatic Pressure ◽  
Before And After

Respiratory muscle fatigue has been demonstrated in the laboratory as well as in pathological states, but whether it occurs in healthy individuals under physiological conditions is unknown. To determine whether fatigue of the respiratory muscles may develop with endurance exercise, we measured spirometry and respiratory muscle strength and endurance in four runners before and after completion of a marathon race (42.2 km). Strength was assessed by measuring maximal inspiratory (PImax) and expiratory (PEmax) pressures and transdiaphragmatic pressure during inspiratory capacity (PdiIC); endurance was determined by measuring maximal voluntary ventilation (MVV). After marathon running (mean time, 3 h 24 min) there was no change in forced vital capacity, inspiratory capacity, or flow rates from prerace values. Decreases were observed between pre- and postrace PImax (165.8 +/- 11.0 vs. 138.5 +/- 7.6 cmH2O; P less than 0.01) PEmax (240.0 +/- 20.4 vs. 173.0 +/- 22.6 cmH2O; P less than 0.05), PdiIC (78.8 +/- 11.6 vs. 63.3 +/- 7.0 cmH2O; P less than 0.10), and MVV (178 +/- 24.2 vs. 161.2 +/- 23.2 l/min; P less than 0.005). The decrements in respiratory muscle strength and endurance suggest the development of respiratory muscle fatigue after marathon running.

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