scholarly journals Skeletal Changes in Growing Cleft Patients with Class III Malocclusion Treated with Bone Anchored Maxillary Protraction—A 3.5-Year Follow-Up

2021 ◽  
Vol 10 (4) ◽  
pp. 750
Author(s):  
Ralph M. Steegman ◽  
Annemarlien Faye Klein Meulekamp ◽  
Arjan Dieters ◽  
Johan Jansma ◽  
Wicher J. van der Meer ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Three Dimensional ◽  
Control Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Protraction ◽  
Gonial Angle ◽  
Positive Effects ◽  
Skeletal Changes

This prospective controlled trial aimed to evaluate the skeletal effect of 3.5-years bone anchored maxillary protraction (BAMP) in growing cleft subjects with a Class III malocclusion. Subjects and Method: Nineteen cleft patients (11.4 ± 0.7-years) were included from whom cone beam computed tomography (CBCT) scans were taken before the start of BAMP (T0), 1.5-years after (T1) and 3.5 y after (T2). Seventeen age- and malocclusion-matched, untreated cleft subjects with cephalograms available at T0 and T2 served as the control group. Three dimensional skeletal changes were measured qualitatively and quantitatively on CBCT scans. Two dimensional measurements were made on cephalograms. Results: Significant positive effects have been observed on the zygomaticomaxillary complex. Specifically, the A-point showed a displacement of 2.7 mm ± 0.9 mm from T0 to T2 (p < 0.05). A displacement of 3.8 mm ± 1.2 mm was observed in the zygoma regions (p < 0.05). On the cephalograms significant differences at T2 were observed between the BAMP and the control subjects in Wits, gonial angle, and overjet (p < 0.05), all in favor of the treatment of Class III malocclusion. The changes taking place in the two consecutive periods (ΔT1-T0, ΔT2-T1) did not differ, indicating that not only were the positive results from the first 1.5-years maintained, but continuous orthopedic effects were also achieved in the following 2-years. Conclusions: In conclusion, findings from the present prospective study with a 3.5-years follow-up provide the first evidence to support BAMP as an effective and reliable treatment option for growing cleft subjects with mild to moderate Class III malocclusion up to 15-years old.

Evaluating the effects of a mindfulness mobile application on student pharmacists’ stress, burnout, and mindfulness

2021 ◽  
Author(s):  
Angela Chu ◽  
Tyler M Rose ◽  
Danielle A Gundrum ◽  
Tressa E McMorris ◽  
Eytan A Klausner ◽  
...  
Keyword(s):  
Mobile Application ◽  
Controlled Trial ◽  
Intervention Group ◽  
Secondary Outcome ◽  
Control Group ◽  
Intervention Period ◽  
Entire Study ◽  
Positive Effects ◽  
Waitlist Control Group

Abstract Disclaimer In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. Purpose Pharmacists report high levels of burnout. Mindfulness approaches have been demonstrated to have positive results in the general population and in other healthcare professions. However, limited studies have been performed evaluating mindfulness approaches in student pharmacists. The aim of this study was to evaluate the effectiveness of daily use of a mindfulness mobile application in improving student pharmacists’ perceived stress, burnout, and mindfulness. Methods This study was a randomized, longitudinal, waitlist-controlled trial. The intervention group was asked to meditate using the mindfulness application Headspace daily for at least 6 weeks. The waitlist control group was asked to abstain from using the application for the entire study. Stress, burnout, and mindfulness were assessed using validated survey instruments at baseline, 6 weeks, and 10 weeks. A secondary outcome was to assess the persistence of application use after the intervention period. Results Fifty-six participants completed the study. The intervention group reported significantly lower scores on stress and burnout at 6 weeks compared to the control group. The intervention group also reported significantly higher scores on mindfulness. The differences in stress, burnout, and mindfulness persisted at follow-up. The mean percentage of students in the intervention group who used the application each day was 90% over the intervention period and 62% over the follow-up period. Conclusion A mindfulness mobile application significantly improved student pharmacists’ stress, burnout, and mindfulness with daily use. Most participants continued to use the application for 4 weeks after the end of the intervention. Positive effects on stress and mindfulness persisted even with decreased use.

Class III Malocclusion: A Cephalometric Study of Saudi Arabians

1989 ◽  
Vol 16 (3) ◽  
pp. 201-206 ◽  
Author(s):  
Andrew P. Toms
Keyword(s):  
Saudi Arabian ◽  
Control Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mean Values ◽  
Gonial Angle ◽  
Mandibular Plane ◽  
Saudi Arabians ◽  
Cephalometric Study ◽  
Bimaxillary Protrusion

The records of 500 consecutive Saudi Arabian patients referred for orthodontic treatment were examined clinically and cephalometrically for Class III malocclusion. A control group was drawn at random from the same sample. The incidence of Class III was 9·4 per cent, with mandibular prognathism being the commonest presentation of the malocclusion. The upper and lower incisors exhibited a marked degree of dentoalveolar compensation, on dental bases having mean values of SNA—78·77° and SNB—81·17°. The maxillary length was reduced, as were the saddle and maxillary—mandibular plane angles. The gonial angle (ArGoMe), anterior and posterior facial heights, and mandibular lengths (ArGo, ArPo) were all significantly larger than the control group. The cephalometric values of the control group showed the increased tendency to bimaxillary protrusion in the Saudi Arabian sample.

scholarly journals Mindfulness-based and cognitive-based stress prevention in student teachers (startklar): study protocol of a randomised controlled trial

BMJ Open ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. e021941
Author(s):  
Jasmina Eskic ◽  
Sophie Merle Kuhlmann ◽  
Katharina Kreinbihl ◽  
Florian Hammerle
Keyword(s):  
Randomised Controlled Trial ◽  
Student Teachers ◽  
Study Protocol ◽  
Controlled Trial ◽  
Control Group ◽  
High Risk Population ◽  
Stress Prevention ◽  
Positive Effects ◽  
Randomised Controlled

IntroductionTeachers and student teachers in Germany are a high-risk population for stress and stress-related mental health problems. This often leads to early retirement in subsequent professional life. Various trials have demonstrated positive effects of stress prevention training on the perceived stress and stress-related symptoms of teachers. Although many studies show positive effects of mindfulness-based stress interventions, there is not yet any mindfulness-based intervention for teachers or student teachers in Germany. The aim of this trial is to evaluate a training that combines mindfulness-based and cognitive interventions into one programme, addressing to the specific burdens of student teachers.Methods and analysisThis study protocol presents a prospective block-randomised controlled trial. Assessment will take place at three time points (baseline, post-intervention, 3-month follow-up) for an intervention and waiting control group, and at a fourth assessment point for the waiting control group after receiving the training. The aim is to evaluate the effects of mindfulness-based stress prevention on stress, psychological morbidity, burnout and self-efficacy using validated measures. Participants are student teachers from German teacher training colleges and participation will be voluntary. The targeted total sample size is 96 at 3-month follow-up. The training will comprise three 4-hour sessions conducted every 2 weeks. The control group will participate in the training after the 3-month follow-up. The allotment will be randomised with a stratified allocation ratio by gender. After descriptive statistics have been evaluated, inferential statistical analysis will be conducted using repeated measures analysis of variance with interactions between time and group. Effect sizes will be calculated using partial η2values.Ethics and disseminationResults will be disseminated at conferences, in specialist magazines and through peer-reviewed publications. The trial has been approved by the ethics review board of the local medical association, Mainz, Germany, under the reference number 837.192.16 (10511).Trial registration numberDRKS00010897.

scholarly journals INFLUENCE OF GROWTH IN TREATED CLASS III GROWING PATIENTS WITH FACE MASK THERAPY AND UNTREATED PATIENTS

2019 ◽  
Vol 31 (4) ◽  
pp. 883-888
Author(s):  
Sofija Carceva Shalja ◽  
Sandra Atanasova
Keyword(s):  
Negative Impact ◽  
Face Mask ◽  
Treated Group ◽  
Control Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Protraction ◽  
Before And After ◽  
Maxillary Deficiency ◽  
Observation Period

Developing Class III Malocclusion in most of the cases affects dentofacial appearance. The goal of this study is to investigate the changes in the facial appearances in treated patients withFace mask orthopedic treatment and untreated Class III patients. The sample consisted 49 patients (boys and girls),with average age of 9 years, who had a Class III Malocclusion with an anterior crossbite and a component of maxillary deficiency. 28 of them were treated with protraction Face mask- Delair mask (petit tipe), and the other 21 were presenting the control group consisted of untreated Class III Patients.In treated group pretreatment and posttreatment cephalometric radiographs from 28 patients(15 males and 13 females) were analyzed and compared with the results of cephalometric analyzes in untreated group(observation period of 1 year). Results from these study showed forward displacement of maxilla(SNA p<0.05),increasing of maxillary length(Co-A p<0.05)correction of maxillary-mandibular relationship(ANB p<0.05) in treated group while in untreated groupvalues for the parameters in the upper jaw and inter jaw relationship before and after the observation period of 1 yearshowed no statistically significant changes pointing to the negative impact of incorrect skeletal terms in Class III growing patients.Based on our findings we can concluded that in Class III patients there is a big motivation for orthodontic treatment because their dentofacial appearance deviates from sociocultural norms.Therefore, an important objective of accepting maxillary protraction treatment in Class III malocclusion is providing nonsurgical alternative in the treatment and improving the physico-social wellbeing and appearance of the patients, especially during their teenage years.

scholarly journals Factors associated with long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion

2017 ◽  
Vol 88 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Hee-Jong Kwak ◽  
Hae-Jin Park ◽  
Yoon-Ji Kim ◽  
Dong-Yul Lee
Keyword(s):  
Multivariate Linear Regression Analysis ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Short Term ◽  
Gonial Angle ◽  
Skeletal Changes ◽  
Mandibular Plane ◽  
Lateral Cephalograms ◽  
The Mean

ABSTRACT Objectives: This study investigated the long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion and different vertical skeletal patterns. Materials and Methods: A total of 54 patients (20 boys and 34 girls; mean age, 7.7 ± 2.0 years) with Class III malocclusion who were successfully treated with facemask therapy were included in this study. Vertical skeletal changes (overbite depth indicator, angle between the Sella-Nasion (SN) plane and Gonion-Gnathion (GoGn) line, angle between the Frankfort horizontal (FH) plane and mandibular plane, gonial angle, and angle between the SN plane and palatal plane) were measured on lateral cephalograms from before treatment (T0) to after facemask therapy (T1) and from T0 to after retention (T2). Multivariate linear regression analysis was used to study the associations of the patients' skeletal patterns with the short-term (T0–T1) and long-term (T0–T2) vertical skeletal changes as a result of facemask therapy. Results: The mean treatment period of facemask therapy (T0–T1) was 1.4 ± 0.6 years, and the mean retention period (T1–T2) was 6.9 ± 2.6 years. Age at T0 was significantly correlated with vertical skeletal changes from T0 to T1. Differences in the treatment results between sexes were not significant. The angle between point A-point B line and mandibular plane to mandibular plane angle at T0 and the angle between the FH plane and mandibular plane at T0 were significant predictors for short-term and long-term changes. Changes in the Sella-Nasion-point A from T0 to T1 and from T1 to T2 significantly affected vertical changes in the short term and long term, respectively. Conclusions: Vertical skeletal changes as a result of facemask therapy are significantly associated with severity of the skeletal Class III malocclusion and mandibular plane angulation before treatment and the amount of forward maxillary growth during the treatment and retention periods.

scholarly journals Use of shape correspondence analysis to quantify skeletal changes associated with bone-anchored Class III correction

2013 ◽  
Vol 84 (2) ◽  
pp. 329-336 ◽  
Author(s):  
Tung Nguyen ◽  
Lucia Cevidanes ◽  
Beatriz Paniagua ◽  
Hongtu Zhu ◽  
Leonardo Koerich ◽  
...  
Keyword(s):  
Correspondence Analysis ◽  
Three Dimensional ◽  
3D Models ◽  
Shape Correspondence ◽  
Class Iii ◽  
Skeletal Class ◽  
Gonial Angle ◽  
Skeletal Changes ◽  
Lower Border ◽  
Anterior Cranial Base

ABSTRACT Objective: To evaluate the three-dimensional (3D) skeletal changes in the mandibles of Class III patients treated with bone-anchored maxillary protraction using shape correspondence analysis. Material and Method: Twenty-five consecutive patients with skeletal Class III who were between the ages of 9 and 13 years (mean age, 11.10 ± 1.1 years) were treated using Class III intermaxillary elastics and bilateral miniplates (two in the infrazygomatic crests of the maxilla and two in the anterior mandible). Cone-beam computed tomography (CBCT) was performed for each patient before initial loading (T1) and at 1 year out (T2). From the CBCT scans, 3D models were generated, registered on the anterior cranial base, and analyzed using 3D linear distances and vectors between corresponding point-based surfaces. Results: Bone-anchored traction produced anteroposterior and vertical skeletal changes in the mandible. The novel application of Shape correspondence analysis showed vectors of mean (± standard deviation) distal displacement of the posterior ramus of 3.6 ± 1.4 mm, while the chin displaced backward by 0.5 ± 3.92 mm. The lower border of the mandible at the menton region was displaced downward by 2.6 ± 1.2 mm, and the lower border at the gonial region moved downward by 3.6 ± 1.4 mm. There was a downward and backward displacement around the gonial region with a mean closure of the gonial angle by 2.1°. The condyles were displaced distally by a mean of 2.6 ± 1.5 mm, and there were three distinct patterns for displacement: 44% backward, 40% backward and downward, and 16% backward and upward. Conclusion: This treatment approach induces favorable control of the mandibular growth pattern and can be used to treat patients with components of mandibular prognathism.

scholarly journals Orthopedic Effect of Chin Cup during Mixed Dentition Stage

2017 ◽  
Vol 18 (5) ◽  
pp. 410-414
Author(s):  
Mohamed I Hashem ◽  
Zeeshan H Ahmad ◽  
Sukumaran Anil ◽  
Khalid J Alanazi
Keyword(s):  
Treated Group ◽  
Mixed Dentition ◽  
Control Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Changes ◽  
Before And After

ABSTRACT Introduction Chin cup (CC) therapy has been used as the traditional appliance for treating class III malocclusion during mixed dentition period. The aim of this study was to investigate the effect of CC on the improvement of skeletal and dentoalveolar skeletal changes in class III patients during mixed dentition stage. Materials and methods A total of 30 patients (7–9 years old) with skeletal class III malocclusion were selected based on clinical and cephalometric examination. Out of 30 patients, 20 underwent CC therapy. All orthodontic records and measurements were taken before and after treatment. Similar records were collected from the control group. The lateral cephalometric films were traced before and after treatment and analyzed. Results There was a significant improvement in maxillary and the mandibular skeletal measurements after CC therapy. Improvement of ANB angle and an increase in Wits appraisal have been detected in the treated group according to intermaxillary skeletal variables. Conclusion The study concluded that the CC therapy is effective for correcting skeletal class III malocclusion along with positive changes in the dentoskeletal variables during the mixed dentition stage. How to cite this article Al-Khalifa HN, Hashem MI, Alanazi KJ, Anil S. Orthopedic Effect of Chin Cup during Mixed Dentition Stage. J Contemp Dent Pract 2017;18(5):410-414.

scholarly journals Effectiveness of maxillary protraction using a hybrid hyrax-facemask combination: A controlled clinical study

2014 ◽  
Vol 85 (5) ◽  
pp. 764-770 ◽  
Author(s):  
Manuel Nienkemper ◽  
Benedict Wilmes ◽  
Lorenzo Franchi ◽  
Dieter Drescher
Keyword(s):  
Treatment Group ◽  
Control Group ◽  
Class Iii ◽  
Orthopedic Treatment ◽  
Maxillary Protraction ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Skeletal Changes ◽  
Vertical Changes ◽  
Controlled Clinical Study

ABSTRACT Objective:  To evaluate the treatment effects of a hybrid hyrax-facemask (FM) combination in growing Class III patients. Material and Methods:  A sample of 16 prepubertal patients (mean age, 9.5 ± 1.6 years) was investigated by means of pre- and posttreatment cephalograms. The treatment comprised rapid palatal expansion with a hybrid hyrax, a bone- and toothborne device. Simultaneously, maxillary protraction using an FM was performed. Mean treatment duration was 5.8 ± 1.6 months. The treatment group was compared with a matched control group of 16 untreated Class III subjects. Statistical comparisons were performed with the Mann-Whitney U-test. Results:  Significant improvement in skeletal sagittal values could be observed in the treatment group over controls: SNA: 2.4°, SNB: −1.7°, Co-Gn: −2.3 mm, Wits appraisal: 4.5 mm. Regarding vertical changes, maintenance of vertical growth was obtained as shown by a small nonsignificant increase of FMA and a small significant decrease of the Co-Go-Me angle. Conclusions:  The hybrid hyrax-FM combination was found to be effective for orthopedic treatment in growing Class III patients in the short term. Favorable skeletal changes were observed both in the maxilla and in the mandible. No dentoalveolar compensations were found.

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