Functional Appliances and Arch Width

1992 ◽  
Vol 19 (2) ◽  
pp. 117-125 ◽  
Author(s):  
S. L. Gibbs ◽  
N. P. Hunt
Keyword(s):  
Retrospective Study ◽  
Post Treatment ◽  
Functional Appliance ◽  
Arch Width ◽  
End Of Treatment ◽  
Functional Appliances

A retrospective study was undertaken using treated functional appliance cases. The groups involved 27 Andresen, 19 Bionator, and 23 Fränkel cases. The reflex metrograph was used to measure arch width from study models at the start of treatment, end of treatment including retention, and at least 1 year post-treatment. The effects of each appliance on arch width are compared during and after treatment.

scholarly journals Arch Widths after Extraction and Nonextraction Treatment in Class I Patients

2013 ◽  
Vol 14 (2) ◽  
pp. 312-315 ◽  
Author(s):  
Vikranth Shetty ◽  
Sangeeta A Golwalkar
Keyword(s):  
Retrospective Study ◽  
Clinical Significance ◽  
Post Treatment ◽  
Class I ◽  
Posterior Arch ◽  
Arch Width ◽  
End Of Treatment ◽  
Smile Esthetics ◽  
Digital Caliper ◽  
Extraction Treatment

ABSTRACT Aim To compare pretreatment and post-treatment dental arches in relation to intercanine and intermolar width changes in extraction and nonextraction treatment in class I patients. Materials and methods In this retrospective study pretreatment and post-treatment dental casts of 60 patients (30 extractions of first premolars and 30 nonextractions) were selected. Anterior and posterior arch widths in the canine and molar regions from the most labial aspect of buccal surfaces, the canines and the molars were measured with the help of digital caliper on the study models and compared statistically to determine whether the dental arches were narrower after extraction treatment. Results At the start of the treatment there were no statistically significant differences in maxillary and mandibular intercanine widths in both groups. At the end of treatment in both the groups anterior and posterior arch width changes were not significant except for the intercanine dimension which was 0.82 mm larger (p < 0.05) in the extraction group. Conclusion The extraction treatment does not result in narrower dental arches than nonextraction treatment in intercanine and intermolar region. Clinical significance It is documented that the arch widths determine smile esthetics and treatment stability. According to the findings of the present study the arch widths in extraction treatments are not narrower than nonextraction so there will not be any compromising effects on esthetics and treatment stability. How to cite this article Golwalkar SA, Shetty V. Arch Widths after Extraction and Nonextraction Treatment in Class I Patients. J Contemp Dent Pract 2013;14(2):312-315.

scholarly journals Comparison of twin block appliance and Forsus Fatigue Resistant Device therapies on uvulo-glossopharyngeal dimensions: A retrospective study

2021 ◽  
Vol 11 ◽  
pp. 23-31
Author(s):  
Mehmet Ali Yavan ◽  
Merve Aycan ◽  
Dicle Aksoyler ◽  
Aysegul Essiz
Keyword(s):  
Retrospective Study ◽  
Class Ii ◽  
Post Treatment ◽  
Mandibular Advancement ◽  
Functional Therapy ◽  
Twin Block ◽  
Oropharyngeal Airway ◽  
Lateral Cephalograms ◽  
Functional Appliances ◽  
Forsus Fatigue Resistant Device

Objectives: The aim of this study was to compare the effects of two different functional appliances on skeletal, dental, and uvulo-glossopharyngeal dimensions. Materials and Methods: Pre- and post-treatment lateral cephalograms of 50 adolescent Class II patients with a retrognathic mandible were obtained from an archive and divided into two groups according to functional therapy. Twenty-five patients (14 females, 11 males, mean age: 13.5 ± 2.8) who were treated with Forsus Fatigue Resistant Device (FFRD) and 25 patients (17 females, eight males, mean age: 12.5 ± 0.4) who had received functional therapy through the twin block (TWB) were enrolled. Skeletal, dentoalveolar, tongue, uvula, hyoid position, and oropharyngeal airway parameters were measured using the Dolphin software, and uvulo-glossopharyngeal area measurements were performed with the AutoCAD software. Results: The TWB group exhibited remarkable mandibular advancement compared to the FFRD group (P < 0.05). Both of the treatments proclined mandibular incisors, and tongue dimensions increased significantly in both groups (P < 0.05). While the hyoid point moved forward and the oropharyngeal area increased significantly in the TWB group, no significant changes were observed in the FFRD group. The comparison of the TWB and FFRD groups with regard to uvulo-glossopharyngeal dimensions showed no significant differences between the groups (P > 0.05). Conclusion: Changes in uvulo-glossopharyngeal dimensions did not significantly vary between the two different functional therapies.

Incidence of Uterine Torsion and Related Factors in Buffaloes of Amul Milk Shed Area

2019 ◽  
Vol 15 (01) ◽  
pp. 17-20
Author(s):  
Chintan S Pateliya1 ◽  
J A Patel ◽  
A J Dhami ◽  
S B Patel ◽  
H L Makwana
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Caesarean Section ◽  
Post Treatment ◽  
Full Term ◽  
Related Factors ◽  
Factors Influencing ◽  
Uterine Torsion

A study was carried out to find out the retrospective incidence of uterine torsion in buffaloes among obstetrical cases in Amul milk shed area and factors influencing it. Data on 1,13,772 obstetrical cases attended from January 2017 to June 2018 by Amul Veterinarians were collected. Moreover, 50 buffaloes suffering from uterine torsion were taken up during July-December, 2018 to know the side, site, degree of uterine torsion, parity as well as sex and viability of the calf and the dam after detorsion/Caesarean section in the same area. In the retrospective study, a total of 2000 cases of uterine torsion were recorded among total 1,13,772 bovine obstetrical cases, which encompassed 1.76%. Of the 2000 cases, 92.20 (1844) percent torsions were found in buffaloes only. Among 57,111 obstetrical cases attended in buffaloes, the incidence of uterine torsion was 3.23%. Moreover, the region/center-wise incidence of torsion cases varied from 1.30–19.36%. The highest incidence of uterine torsion was found in Anand region (19.36 %) followed by Kathlal (11.23 %) and Mahemdabad (10.14 %) regions, while the lowest incidence was in Virpur (2.06%), Petlad (1.46%) and Piplata (1.30%). It was concluded that buffaloes mostly experience right side (100%), post-cervical (82%) uterine torsion of 270–360° (66%), at full term of gestation (70%)with lower survivability of the calves (30%), however, the survival rate of the dams post-treatment was 90%.

scholarly journals Expectancies as predictors of symptom improvement after antimicrobial therapy for persistent symptoms attributed to Lyme disease

2021 ◽  
Author(s):  
Henriët van Middendorp ◽  
Anneleen Berende ◽  
Fidel J. Vos ◽  
Hadewych H. M. ter Hofstede ◽  
Bart Jan Kullberg ◽  
...  
Keyword(s):  
Lyme Disease ◽  
Treatment Success ◽  
Symptomatic Improvement ◽  
Post Treatment ◽  
Symptom Improvement ◽  
Persistent Symptoms ◽  
Treatment Expectancies ◽  
End Of Treatment ◽  
Pre Treatment

Abstract Introduction/Objective Expectancies about symptom improvement or deterioration are reliable predictors of symptom progression and treatment outcomes (symptom resolution or symptomatic improvement) in many (non-)pharmacological studies and treatments. This study examined predictors of symptom improvement after antimicrobial therapy for persistent symptoms attributed to Lyme disease, hypothesizing particularly pre-treatment expectancies regarding symptom improvement to be predictive. Methods A predictive study was performed on pre-treatment and post-treatment individual characteristics, including expectancies, and physical and mental health–related quality of life (HRQoL) from the PLEASE-trial comparing randomized 12-weeks of doxycycline, clarithromycin-hydroxychloroquine, or placebo following 2 weeks of intravenous ceftriaxone. At end-of-treatment (14 weeks after trial start) and follow-up (52 weeks), complete data of 231 and 170 (of initial 280) patients with persistent symptoms temporally related to a history of erythema migrans or otherwise confirmed symptomatic Lyme disease, or accompanied by B. burgdorferi IgG or IgM antibodies, were examined through hierarchical regression analyses. Results In addition to pre-treatment HRQoL, pre-treatment expectancies regarding symptom improvement were consistently associated with stronger physical and mental HRQoL improvements at both end-of-treatment and follow-up (95% CI range: .09;.54, p < .01 to .27;.92, p < .001). Post-treatment expectancies regarding having received antibiotics vs. placebo was associated with more HRQoL improvement at end-of-treatment, but not at follow-up (95% CI-range 1.00;4.75, p = .003 to −7.34; −2.22, p < .001). Conclusions The present study shows that, next to pre-treatment functioning, patients’ pre-treatment and post-treatment expectancies regarding improvement of persistent symptoms attributed to Lyme disease relate to a more beneficial symptom course. Expectancies of patients may be relevant to explain and potentially improve patient outcomes (e.g., by optimized communication about treatment success). Trial registration ClinicalTrials.gov, NCT01207739 (Registration date: 23–09-2010) Key Points• As there is currently no sufficient symptom resolution or symptomatic improvement for many patients with persistent symptoms attributed to Lyme disease, it is relevant to know which factors determine symptom progression and predict heterogeneity in treatment response.• Next to pre-treatment functioning, expectancies regarding symptom improvement and having received antimicrobial study medication are associated with a more beneficial symptom course after both shorter-term and longer-term antimicrobial treatment.• Expectancies are relevant to consider in treatment studies and may be useful in clinical settings to improve symptom course and treatment outcome (e.g., by optimized communication about treatment success).

Retrospective study of the radiological findings of the mediastinum after end-of-treatment for a mediastinal lymphomatous mass in pediatric oncology

2019 ◽  
Author(s):  
Pauline Tibout ◽  
Judith Rondeau-Legault ◽  
Guillaume St-Laurent ◽  
Natasha Ferguson ◽  
David Simonyan ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Pediatric Oncology ◽  
Radiological Findings ◽  
End Of Treatment

Post-treatment prognostic model for patients (pts) with metastatic urothelial cancer (UC) treated with first-line chemotherapy.

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 256-256 ◽  
Author(s):  
Matt D. Galsky ◽  
Erin L. Moshier ◽  
Susanne Krege ◽  
Chia-Chi Lin ◽  
Noah M. Hahn ◽  
...  
Keyword(s):  
External Validation ◽  
Post Treatment ◽  
Treatment Discontinuation ◽  
White Blood Count ◽  
Concordance Index ◽  
First Line ◽  
Duration Of Treatment ◽  
End Of Treatment ◽  
Metastatic Urothelial Cancer ◽  
Line Chemotherapy

256 Background: Models to predict the outcome of pts with metastatic UC, based on pre-treatment variables, have previously been developed. However, pts often request “updated” prognostic estimates based on their response to treatment. This is particularly relevant in first-line treatment of metastatic UC, a disease state for which a fixed number of cycles of chemotherapy are typically administered. Methods: Data were pooled from 317 pts enrolled on eight trials evaluating first-line cisplatin-based chemotherapy in metastatic UC. Variables were combined in a Cox proportional hazards model to produce a nomogram to predict survival from end of treatment. The nomogram was validated externally using data from a trial of MVAC versus docetaxel plus cisplatin (n=148). Results: The median survival from end of treatment was 10.65 months [95% CI 9.20 – 13.24]; 69% of patients had died. Baseline (white blood count, ECOG performance status, number of visceral metastatic sites) and post-treatment (treatment response, duration of treatment, reason for treatment discontinuation) variables were evaluated. The Cox proportional hazard model is shown in the Table. The duration of treatment and reason for treatment discontinuation were not significantly associated with survival. The four significant variables were included in a nomogram. The nomogram achieved a bootstrap-corrected concordance index of 0.68. Upon external validation, the nomogram achieved a concordance index of 0.67. Conclusions: A model derived from pre- and post-treatment variables was constructed to predict survival from the end of first-line chemotherapy in pts with metastatic UC. This model may be useful for pt counseling and for stratification of trials exploring “maintenance” treatment. [Table: see text]

Interim metabolic tumor volume to predict response in diffuse large B-cell lymphoma.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 7557-7557
Author(s):  
Prioty Islam ◽  
Jordan Goldstein ◽  
Ila Sethi ◽  
Daniel Lee ◽  
Christopher Flowers
Keyword(s):  
Treatment Response ◽  
Predictive Value ◽  
Tumor Volume ◽  
Post Treatment ◽  
Ct Scans ◽  
Fdg Uptake ◽  
Interim Pet ◽  
End Of Treatment ◽  
Pet Ct ◽  
Pre Treatment

7557 Background: DLBCL is a heterogeneous disease with varied clinical outcomes following treatment with rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP). [18F] fluorodeoxyglucose (FDG) – positron emission tomography (PET)/computed tomography (CT) imaging is ubiquitously used in monitoring of DLBCL. PET-derived metrics for analysis of tumor FDG uptake include: tumor maximum standardized uptake value (SUV); metabolically active tumor volume (MTV); and total lesion glycolysis (TLG), calculated from the intensity of FDG uptake in tumor volume. We evaluated the predictive value of interim SUV, MTV and TLG for patients (pts) with DLBCL treated with R-CHOP. Methods: Pts with DLBCL treated at Emory University 2005-2016 were eligible. Cases were included if there was a diagnosis of DLBCL confirmed by record review, available information on date of diagnosis, date of last contact or date of death. Analyses were restricted to patients who received R-CHOP and had PET/CT scans available at baseline, Cycle 2 or 4 and end of treatment. Maximum SUV, MTV, and TLG were calculated using MIM software for tumor with an SUV threshold of > 4. Logistic regression analysis was used to calculate the predictive value of interim PET/CT metrics on end of treatment response. Results: Pre-treatment PET/CT scans for 42 patients were identified, along with 28 interim and 31 post-treatment scans. The mean pre-treatment MTV was 303ml (range 4 – 1,327) and mean TLG was 3188 (range 28 – 16,176). MTV and TLG were undetectable in 79% of interim scans and 74% of the post-treatment scans. A Deauville score of 3 or less was observed in 71% of the interim PET/CT scans and 56% of the post-treatment scans. A positive interim MTV was correlated with a positive post-treatment MTV and post-treatment Deauville score at 0.58 and 0.66, respectively, and a positive interim MTV result was a significant predictor of a positive post-treatment MTV result (p = 0.02). Conclusions: PET-derived metrics of assessing interim tumor response to therapy offer significant predictive value for end of treatment response, and can guide a response-adapted treatment approach for DLBCL pts that builds on the R-CHOP backbone.

A Cognitive Behavioural Group Treatment of Bulimia

1985 ◽  
Vol 146 (1) ◽  
pp. 66-69 ◽  
Author(s):  
John A. Schneider ◽  
W. Stewart Agras
Keyword(s):  
Group Treatment ◽  
Cost Effective ◽  
Primary Outcome Measure ◽  
Eating Attitudes ◽  
Post Treatment ◽  
Behavioural Approach ◽  
Cognitive Behavioural ◽  
End Of Treatment ◽  
Cost Effective Treatment ◽  
Treatment Measures

SummaryThis study describes a group treatment of bulimia using an adaptation of Fairburn's (1981) cognitive behavioural approach. Thirteen bulimic women with a self-reported average of 24 self-induced vomiting episodes per week were treated in two groups; each group met once a week for 16 weeks. The primary outcome measure was the number of self-reported vomiting episodes; pre- and post-treatment measures of eating attitudes, depression, assertiveness, and global level of psychological distress were also evaluated. Vomiting frequency decreased to an average 2.2 times per week (a 91% improvement) with seven patients abstinent by the end of treatment. Significant pre- to post-treatment changes were also demonstrated on measures of depression, eating attitudes, and assertiveness. Six-month follow-up data on 11 patients indicate a mean vomiting frequency of 3.8 per week; six patients maintained their progress. Although Fairburn had greater success using an individual cognitive behavioural approach, the results of the present study are promising for the development of a cost-effective treatment.

scholarly journals Assessment of arch width changes in Class I and Class II Division 1 patients treated with fixed orthodontics

2021 ◽  
Vol 14 (1) ◽  
pp. 3-7
Author(s):  
Umesh Parajuli ◽  
Manish Bajracharya ◽  
Manju Pandey ◽  
Ima Gurung ◽  
Sapna Laxmi Tuladhar
Keyword(s):  
Study Groups ◽  
Class Ii ◽  
Cross Sectional Study ◽  
T Test ◽  
Post Treatment ◽  
Class I ◽  
Sectional Study ◽  
Cross Sectional ◽  
Arch Width ◽  
Treatment Changes

Background: The orthodontic treatment should aim to maintain the inter-canine and inter-molar width to that of the pre-treatment values. The study was conducted with objective to evaluate arch width changes in Class I and Class II patients treated with fixed orthodontics. Methods: This was a hospital-based cross-sectional study with two study groups. The first group included patients with Class I malocclusion, treated with four first premolar extractions and the second group included patients with Class II Div 1 malocclusion, treated with upper two first premolar extractions. The inter-canine and inter-molar width of the pre and post-treatment study model were measured. To compare the changes observed amongst two groups, independent samples t-test was performed. A paired sample t-test was used to evaluate the treatment changes within each group. Results: There was significant increase in inter-canine width in both maxillary and mandibular arches in both the groups. In Class I extraction group there was significant decrease in the inter-molar width in both maxillary and mandibular arches. The Class II Div1 maxillary extraction group also showed significant increase in inter-canine width in both maxillary and mandibular arches. In the same group there was decrease in post treatment Methods: This was a hospital-based cross-sectional study with two study groups. The first group included patients with Class I malocclusion, treated with four first premolar extractions and the second group included patients with Class II Div 1 malocclusion, treated with upper two first premolar extractions. The inter-canine and inter-molar width of the pre and post-treatment study model were measured. To compare the changes observed amongst two groups, independent samples t-test was performed.  A paired sample t-test was used to evaluate the treatment changes within each group. Results: There was significant increase in inter-canine width in both maxillary and mandibular arches in both the groups. In Class I extraction group there was significant decrease in the inter-molar width in both maxillary and mandibular arches. The Class II Div1 maxillary extraction group also showed significant increase in inter-canine width in both maxillary and mandibular arches. In the same group there was decrease in post-treatment inter-molar width in both arches with significant decrease in the maxillary inter-molar width. Conclusion: There was increase in inter-canine width in both Class I extraction group and Class II Div 1 maxillary extraction group with decrease in inter-molar width in both the groups.  

Sign in / Sign up

Export Citation Format

Share Document