scholarly journals Distalization pattern of the maxillary arch depending on the number of orthodontic miniscrews

2012 ◽  
Vol 83 (2) ◽  
pp. 266-273 ◽  
Author(s):  
Till E. Bechtold ◽  
Jin-Wook Kim ◽  
Tae-Hyun Choi ◽  
Young-Chel Park ◽  
Kee-Joon Lee
Keyword(s):  
Class Ii ◽  
Dual Group ◽  
Occlusal Plane ◽  
Single Group ◽  
Force Vector ◽  
Mandibular Plane ◽  
Group A ◽  
Group B ◽  
Displacement Patterns ◽  
Maxillary Arch

ABSTRACT Objective: To determine the effects of linear force vector(s) from interradicular miniscrews on the distalization pattern of the maxillary arch in adult Class II patients. Materials and Methods: Twenty-five adult patients with mild to moderate Class II dentition and minimal crowding were collected. Either single (group A, n  =  12) or dual (group B, n  =  13) miniscrews were inserted on the posterior interradicular area to deliver a distalizing force to the main archwire. The displacement patterns of maxillary incisors and molars were measured and compared. Results: Significant distalization in the molars and incisors was shown in both groups. Significantly greater distalization and intrusion of the first molar and intrusive displacement of the incisor, together with significant reduction of the mandibular plane, were noted in group B, in contrast to the rotation of the occlusal plane in group A. Conclusions: Interradicular miniscrews predictably induced total arch distalization, leading to the correction of Class II. Additional miniscrews in the premolar area appear to facilitate intrusion and distalization of the entire arch according to the position of the force vectors.

scholarly journals Evaluation of possible reasons for asymmetries associated with Class II subdivision, Class II division 1 and normal malocclusion

2021 ◽  
Vol 7 (4) ◽  
pp. 287-291
Author(s):  
Velagapalli Jessie Ratan ◽  
Kiran Kumar ◽  
Ravi Krishna K ◽  
Eswar Prasad S ◽  
Pavan K ◽  
...  
Keyword(s):  
Class Ii ◽  
Division I ◽  
Class I ◽  
Occlusal Plane ◽  
Plane Angle ◽  
Normal Occlusion ◽  
Division 1 ◽  
Group A ◽  
Group B ◽  
Piriform Aperture

: To evaluate and compare the asymmetries in subjects with two malocclusions that is Class II subdivision, Class II div 1 and normal occlusion.: 90 subjects ranging from 15 to 30 years divided into 3 groups A, B, C. Group A – Class II subdivision, Group B – Class II division I, Group C – Normal Class I occlusion. Angular, linear paired, linear unpaired measurements were calculated based on the Van De Coppell analysis using PA views.: Asymmetry was found in all the three groups where Group A patients showed greater degree of asymmetry near maxillary buttress and piriform aperture areas compared to the three groups. Group C patients showed greater degree of asymmetry in the occlusal plane angle. All the three malocclusions that is Class II div 1 Subdivision, Class II div 1 and Class I malocclusions showed equal amounts of asymmetry. Class II subdivision patients showed greater asymmetry near maxillary buttress area and piriform aperture. Class I malocclusion showed deviation in occlusal plane angle. Along with the lower third involving mandible, maxillary area also can equally show asymmetry in both skeletal and dental parameters.

Gamma Knife surgery as sole treatment for multiple brain metastases: 2-center retrospective review of 1508 cases meeting the inclusion criteria of the JLGK0901 multi-institutional prospective study

2010 ◽  
Vol 113 (Special_Supplement) ◽  
pp. 48-52 ◽  
Author(s):  
Toru Serizawa ◽  
Masaaki Yamamoto ◽  
Yasunori Sato ◽  
Yoshinori Higuchi ◽  
Osamu Nagano ◽  
...  
Keyword(s):  
Brain Metastases ◽  
Gamma Knife ◽  
Class Ii ◽  
Hazard Ratio ◽  
Gamma Knife Surgery ◽  
Inclusion Criteria ◽  
Primary Tumors ◽  
Poor Prognostic Factor ◽  
Group A ◽  
Group B

Object The authors retrospectively reviewed the results of Gamma Knife surgery (GKS) used as the sole treatment for brain metastases in patients who met the eligibility criteria for the ongoing JLGK0901 multi-institutional prospective trial. They also discuss the anticipated results of the JLGK0901 study. Methods Data from 1508 consecutive cases were analyzed. All of the patients were treated at the Gamma Knife House of Chiba Cardiovascular Center or the Mito Gamma House of Katsuta Hospital between 1998 and 2007 and met the following JLGK0901 inclusion criteria: 1) newly diagnosed brain metastases, 2) 1–10 brain lesions, 3) less than 10 cm3 volume of the largest tumor, 4) no more than 15 cm3 total tumor volume, 5) no findings of CSF dissemination, and 6) no impairment of activities of daily living (Karnofsky Performance Scale score < 70) due to extracranial disease. At the initial treatment, all visible lesions were irradiated with GKS without upfront whole-brain radiation therapy. Thereafter, gadolinium-enhanced MR imaging was performed every 2–3 months, and new distant lesions were appropriately retreated with GKS. Patients were divided into groups according to numbers of tumors: Group A, single lesions (565 cases); Group B, 2–4 tumors (577 cases); and Group C, 5–10 tumors (366 cases). The differences in overall survival (OS) were compared between groups. Results The median age of the patients was 66 years (range 19–96 years). There were 963 men and 545 women. The primary tumors were in the lung in 1114 patients, gastrointestinal tract in 179, breast in 105, urinary tract in 66, and other sites in 44. The overall mean survival time was 0.78 years (0.99 years for Group A, 0.68 years for Group B, and 0.62 years for Group C). The differences between Groups A and B (p < 0.0001) and between Groups B and C (p = 0.0312) were statistically significant. Multivariate analysis revealed significant prognostic factors for OS to be sex (poor prognostic factor: male, p < 0.0001), recursive partitioning analysis class (Class I vs Class II and Class II vs III, both p < 0.0001), primary site (lung vs breast, p = 0.0047), and number of tumors (Group A vs Group B, p < 0.0001). However, no statistically difference was detected between Groups B and C (p = 0.1027, hazard ratio 1.124, 95% CI 0.999–1.265). Conclusions The results of this retrospective analysis revealed an upper CI of 1.265 for the hazard ratio, which was lower than the 1.3 initially set by the JLGK0901 study. The JLGK0901 study is anticipated to show noninferiority of GKS as sole treatment for patients with 5–10 brain metastases compared with those with 2–4 in terms of OS.

scholarly journals Outcome of Albumin Infusion in Heart Failure Patients

2019 ◽  
Vol 15 (2) ◽  
pp. 47-53
Author(s):  
Ashaduzzaman Talukder ◽  
Mohamed Mausool Siraj ◽  
Md Noornabi Khondokar ◽  
SM Ahsan Habib ◽  
Md Abu Salim ◽  
...  
Keyword(s):  
Heart Failure ◽  
Serum Albumin ◽  
Nyha Class ◽  
Class Ii ◽  
Class I ◽  
Class Iii ◽  
Albumin Infusion ◽  
Group A ◽  
Group B ◽  
Class Iv

Background: Heart Failure (HF) is a major public health burden worldwide. Approximately 5 million Americans, 0.4–2% of the general European population and over 23 million people worldwide are living with heart failure. Like few other chronic disease, low serum albumin is common in patients with heart failure (HF). However, very few studies evaluated the outcome of albumin infusion in different stages of HF. Therefore, the objective of this study is to assess the outcome of albumin infusion in heart failure patients. Methods: It was a cross-sectional study. A total of 50 cases of chronic heart failure with reduced ejection fraction and NYHA class III or IV with serum albumin level <2.5g/dl who were admitted in CCUwere selected by purposive sampling, from September 2017 to August 2018. 100ml of 20% albumin was infused and serum albumin was measured after 3 days. Then the patients were divided into two groups, Patients who failed to attain serum albumin of 3g/dl(Group A) or Patients who attained serum albumin of ≥3g/dl (Group B). Analysis and comparison for symptomatic improvement of heart failure by NHYA classification and LVEF was done at 10th day after infusion between group A and B. Result: Among the 50 patients, mean age of patients was 53.64 ± 13.44 years (age range: 26-84 years) with a male-female ratio of 3:2 (60%-male vs 40%- female). Majority patients were previously re-admitted at least two times (40%), 28% were re-admitted once, 16% were re-admitted three times and 4% were re-admitted for four times. Of all, 56% patients presented NYHA class IV and AHA stage D heart failure (56%) and 44% patients presented with NYHA class III and AHA stage C. At day 10 follow up following albumin infusion, overall frequency of following ten days of albumin therapy, in group B, 8 patients (72.7%) among Class III improved to Class I and 3 patients (27.3%) improved to class II. Also, 7 patients (50%), 5 patients (35.7%) and 2 patients (14.3%) among class IV improved to respectively class I, class II and class III. In group A, 3 patients (27.3%) among class III improve to class II and 8 patients (72.7%) remain in class III. Also, 2 patients (14.3%), 5 Patients (35.7%) and 7 patients (50%) among class IV improve to respectively class I, class II and class III. Moreover, statistically significant improvement was noted in ejection fraction of patents irrespective of initial class of heart failure (p<0.001) in group B patients compare to group A (p<0.09). Conclusion: In this study, the improvement of heart failure was more in patients who attained albumin level of ≥3g/dl.Therefore, in can be concluded that albumin infusion improves both subjective and objective improvement of patients with heart failure. University Heart Journal Vol. 15, No. 2, Jul 2019; 47-53

scholarly journals RELATIONSHIP BETWEEN OCCLUSAL PLANE ORIENTATION AND SAGITTAL MALOCCLUSIONS: STUDY OF AN ORTHODONTIC POPULATION

2021 ◽  
pp. 1-6
Author(s):  
INES DALLEL ◽  
SANA KANOUN ◽  
MARIEM NAHDI ◽  
MONCEF OMMEZINE ◽  
SAMIR TOBJI ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Significant Rise ◽  
Class I ◽  
Occlusal Plane ◽  
Class Iii ◽  
Angle Class ◽  
Mandibular Plane ◽  
Significant Difference ◽  
Skeletal Pattern

Objective: The aim of this study was to evaluate the association of the skeletal pattern and angle class with the occlusal plane (OP). This study also examined the effect of orthodontic treatment on this plane. Methods: Lateral cephalometric radiographs of a sample of 135 patients were collected. The angles between the Frankfort horizontal, palatal plane (PP), mandibular plane (MP), and the OP were analyzed and compared between several groups and subsequently before and after treatment. Results: The statistical comparison between 3 skeletal frame groups demonstrates that the cant of the OP showed a major difference. This difference was greater in class III subjects. Examination revealed that the OP was not meaningfully affected within the Angle classification. Statistically, a significant correlation was found between OP steepness and the vertical skeletal pattern. A significant rise of OP/sella-nasion (SN) for class I (p=0.019) and II (p=0.015) after orthodontic treatment. In addition, patients treated with elastics showed a significant decrease of OP/MP (mandibular plane) in Angle class III and considerable increase of OP/SN and OP/PP in Angle class II. Observations of the group treated with bimaxillary extractions showed that OP/SN (sella nasion line) and OP/PP differ in a meaningful way. Conclusion: This study confirms the association between the skeletal pattern and the OP inclination in adults. Concerning the Angle classification, there was no significant difference between the groups. Orthodontic therapy had an influence on the inclination of this plane for the different malocclusions. Premolars extraction in class I cases significantly modified the OP. For class II and III malocclusions, the OP inclination was mainly altered by the use of intermaxillary traction elastics.

Relapse Tendency in Maxillary Arch Width in Unilateral Cleft Lip and Palate Patients with Different Maxillary Arch Forms

2008 ◽  
Vol 45 (3) ◽  
pp. 278-283 ◽  
Author(s):  
Talat Al-Gunaid ◽  
Toshikazu Asahito ◽  
Masaki Yamaki ◽  
Kooji Hanada ◽  
Ritsuo Takagi ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Dental Arch ◽  
Arch Form ◽  
Group A ◽  
The Stability ◽  
Arch Forms ◽  
Group B ◽  
Severe Degree ◽  
Maxillary Arch

Objective: The aim of this study was to investigate the relapse tendency in the maxillary dental arch widths in unilateral cleft lip and palate patients with different types of maxillary arch form. Subjects: Thirty-two unilateral cleft lip and palate patients treated by one-stage surgical palatal closure were included. The subjects were divided into three groups according to the types of the maxillary arch forms: group A, symmetrical arch form; group B, collapse of minor segment; group C, collapse of both segments. Methods: Using dental casts obtained at three different times, relapse in the intercanine, interpremolar, and intermolar widths in each group was assessed and differences between groups were investigated. Results: Patients in group A showed stable results in all measurements. Patients in group B showed posttreatment relapse in the intercanine width only, whereas patients in group C demonstrated significant posttreatment relapses in the interpremolar and intermolar widths. Comparison between groups showed more significant relapse in the interpremolar and intermolar widths of group C than in those of group B. Conclusion: The types of the maxillary arch forms in unilateral cleft lip and palate patients might play a stronger role in the stability of the maxillary dental arch widths after orthodontic treatment in patients with collapse of both segments and a severe degree of maxillary narrowness.

scholarly journals Long-term stability of miniscrew anchored maxillary molar distalization in Class II treatment

2020 ◽  
Vol 90 (3) ◽  
pp. 362-368 ◽  
Author(s):  
Till Edward Bechtold ◽  
Young-Chel Park ◽  
Kyung-Ho Kim ◽  
Heekyu Jung ◽  
Ju-Young Kang ◽  
...  
Keyword(s):  
Class Ii ◽  
Vertical Movement ◽  
Occlusal Plane ◽  
Control Group ◽  
Long Term Stability ◽  
Class Ii Treatment ◽  
Lateral Cephalograms ◽  
Maxillary Molar ◽  
Group A

ABSTRACT Objective To investigate treatment stability of miniscrew-anchored maxillary distalization in Class II malocclusion. Materials and Methods This retrospective study included a distalization (n = 19) and a control (n = 19) group; a patient group with minor corrections served the control. Lateral cephalograms of 38 adult patients were taken before (T0), immediately after (T1), and 3–4 years after (T2) treatment. Horizontal and vertical movement and tipping of the maxillary first molars (U6) and central incisors (U1) were measured along with skeletal craniofacial parameters at three time points to compare the two groups regarding the achieved treatment effects and their stability. Results Total arch distalization therapy led to 4.2 mm of distal movement of U6 without distal crown tipping (0.6° of axis change) and 3.3° of occlusal plane steepening. Over an average retention period of 42 months, maxillary total arch distalization provided high stability of treatment results, showing the same amount of mesial movement (0.7 mm) as the control group. Conclusions In Class II treatment, miniscrew-anchored maxillary total arch distalization can provide stable distal movement of the maxillary first molars and central incisors.

scholarly journals AB0314 SEMAPHORIN 3A LEVELS IN LUPUS WITH AND WITHOUT SECONDARY ANTIPHOSPHOLIPID ANTIBODY SYNDROME AND RENAL INVOLVEMENT

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1182.2-1182
Author(s):  
G. S. Kart-Bayram ◽  
D. Bayram ◽  
A. Erden ◽  
S. C. Güven ◽  
B. Özdemir ◽  
...  
Keyword(s):  
Lupus Erythematosus ◽  
Renal Involvement ◽  
Control Group ◽  
Antiphospholipid Antibody ◽  
Antiphospholipid Antibody Syndrome ◽  
Single Group ◽  
Group A ◽  
Patient Groups ◽  
Group B ◽  
And Control

Background:In this study, we aimed to evaluate sema3A levels in SLE patients with and without renal involvementor secondary antiphospholipid antibody syndrome (APS), to further elucidate the contribution ofsema3A in etiopathogenesis these conditionsObjectives:Aim of this study is to evaluate sema3A levels in systemic lupus erythematosus patients (SLE) with and without renal involvement and secondary antiphospholipid antibody syndrome (APS).Methods:SLE patients were grouped according to presence of secondary APS or renal involvement. The control group consisted of age-matched, non-smoker, healthy volunteers. Sema3A levels were compared among groups. All SLE patients were regrouped according to presence of thrombotic events, miscarriages and proteinuria and sema3A levels were investigated. Finally, sema3A levels of all SLE patients as a single group were compared to controls.Results:The mean sema3A values were 16.16±2.84 ng/dL in the control group, 11.28±5.23 ng/dL in SLE patients without nephritis and APS, 9.05±5.65 ng/dL in SLE with APS group, and 8.53±5.11 ng/dL in lupus nephritis group. When all three patient groups were examined as a single group, mean sema3A value was significantly lower than that of the control group. Sema3A was reduced in SLE patients with thromboembolism and/or miscarriage.Conclusion:Sema3A levels were lower in all patient groups compared to the control group. Moreover, the reduced sema3A levels in patients with a history of thromboembolism and/or miscarriage suggests that sema3A may play an important role in the pathogenesis of vasculopathyTable 1.Comparison of sema3A levels between SLE patient groups and control subjectsPatient groupspGroup A (N=20)Group B (N=20)Group C (N=19)Control (N=19)Sema3A, ng/dL, mean ± SD9.05 ± 5.6511.28 ± 5.238.53 ± 5.1116.16 ± 2.84Group A vscontrol<0.001Group B vscontrol<0.001Group C vscontrol<0.001Group A vs B = 0.203Group A vs C = 0.766Group B vs C = 0.106<0.001All patients (N=59)Control (N=19)9.64 ± 5.3816.16 ± 2.84Patients with thrombotic events and/or miscarriages (N=31)Patients without thrombotic events and/or miscarriages (N=48)0.0329.96 ± 5.1112.33 ± 5.84<0.001Patients with proteinuria and/or thrombotic events and/or miscarriages (N=45)Patients without proteinuria and/or thrombotic events and/or miscarriages (N=34)9.05 ± 5.0914.91± 4.50Disclosure of Interests:None declared

scholarly journals Therapeutic effectiveness of AdvanSync2 at different stages of skeletal maturity in skeletal Class II malocclusion: A single-blind clinical trial

2020 ◽  
Vol 10 ◽  
pp. 111-119
Author(s):  
Pradeep Raghav ◽  
Shivani Mathur ◽  
Kumar Amit ◽  
Stuti Mohan
Keyword(s):  
Skeletal Maturity ◽  
Class Ii ◽  
Functional Appliance ◽  
Functional Therapy ◽  
Lower Incisor ◽  
Skeletal Class ◽  
Fixed Functional Appliance ◽  
Skeletal Class Ii ◽  
Group A ◽  
Group B

Objectives: AdvanSync2 (Ormco, Glendora, California, USA) is a molar-to-molar fixed Class II corrector, based on the philosophy of Herbst which allows the bonding of the both upper and lower arches simultaneously along with fixed functional therapy. The purpose of this study was to cephalometrically compare the skeletal and dentoalveolar effects of AdvanSync2 in the correction of Class II malocclusions in circumpubertal and post-pubertal patients. Materials and Methods: Forty-eight samples were selected and divided into two groups based on their CVMI staging, Group A, i.e., at CVMI Stages 2 and 3 (18 girls and six boys) and Group B, i.e., CVMI Stages 4, 5, and 6 (19 girls and five boys). Cephalograms taken at pre- and post-AdvanSync2 stages were compared and analyzed. Results: The results showed that there was a significant increase in mandibular length in both groups. Both the groups also showed sagittal maxillary restriction, maxillary molar distalization, and retroclination of maxillary incisors. On comparison between Group A and Group B, there was no statistically significant differences in terms of maxillary position, size of maxilla, as well as upper and lower incisor inclinations in Group A except for improvement of mandibular position (SNB; P ≤ 0.01) and greater amount of chin growth (B -Pg; P ≤ 0.01) with respect to Group B. Conclusion: AdvanSync2 can be used as an effective fixed functional appliance in post-pubertal group for sagittal mandibular correction in skeletal Class II patients.

The effects of rapid rearing and early calving on the subsequent performance of dairy heifers

1979 ◽  
Vol 29 (1) ◽  
pp. 131-142 ◽  
Author(s):  
W. Little ◽  
R. M. Kay
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Single Group ◽  
Subsequent Performance ◽  
Dairy Heifers ◽  
Body Weights ◽  
High Incidence ◽  
Group A ◽  
Group B ◽  
Average Body

ABSTRACT1. One-hundred-and-ten British Friesian, British Friesian × Ayrshire or successive backcrosses to British Friesian heifer calves were allocated to three groups. Groups A and B were rapidly reared and fed a barley-beef diet which resulted in mean body-weight gains exceeding 1 kg/day (13 to 39 weeks) and group C was normally reared on summer grazing and hay plus concentrates in winter at a mean body-weight gain never exceeding 0·74 kg/day. Animals in group A were first mated at an average age of 42·9 weeks (body weight, 302 kg). Groups B and C were mated later at average ages of 78·4 and 78·1 weeks (average body weights, 443 and 353 kg respectively). After the first calving all animals were fed and managed as a single group.2. There were no significant differences between the proportion of heifers conceiving at first service in groups A (55·5%), B (66·7%) and C (72·4%).3. There were no differences in the incidence of dystocia at first calving in heifers served by an Aberdeen Angus bull but 12 out of 19 heifers in group A served by a British Friesian bull had dystocia.4. Average 305-day fat-corrected milk yields in the first four lactations in group A (18 animals) were 1959, 2918, 3545 and 3210 kg and in the first three lactations in group B were2450,3216and3310kgand in group C 3863,4694 and 4813 kg. Thus milk yield was significantly lower in all lactations for rapidly-reared animals irrespective of the age at breeding and was further significantly lowered in the first lactation of animals mated early.5. There was a high incidence of laminitis and bloat in heifers reared on the barley-beef diet, but during lactation, there was a lower incidence of mastitis in the lower-yielding, rapidly-reared groups.

scholarly journals Microleakage of Class I and II Composite Resin Restorations Using a Sonic-resin Placement System

2015 ◽  
Vol 40 (6) ◽  
pp. 653-661 ◽  
Author(s):  
J Kalmowicz ◽  
JG Phebus ◽  
BM Owens ◽  
WW Johnson ◽  
GT King
Keyword(s):  
Composite Resin ◽  
Acrylic Resin ◽  
Adhesive System ◽  
Class Ii ◽  
Class I ◽  
Blue Dye ◽  
Group A ◽  
Composite Resin Restorations ◽  
Level Of Significance ◽  
Group B

SUMMARYObjectivesTo determine microleakage of posterior Class I and II restorations using the SonicFill composite resin system.Methods and MaterialsEighty previously extracted third molars were randomly assigned to four preparation/restoration groups (n=20): Group A: Class I preparations restored with SonicFill system/bulk fill; Group B: Class II preparations restored with SonicFill system/bulk fill; Group C: Class I preparations restored with Herculite Ultra composite resin/incremental technique; and Group D: Class II preparations restored with Herculite Ultra composite resin/incremental technique. Class I preparations were approximately 3.0 mm in width buccolingually and 3.0 mm in depth. Class II preparations were approximately 3.0 mm in width buccolingually, 1.5 mm in axial depth, and 4.0 mm in gingival depth. In all groups, the enamel and dentin surfaces were conditioned with Kerr 37.5% phosphoric acid, followed by application of Optibond Solo Plus adhesive system. Following restoration, the specimens were thermocycled, immersed in methylene blue dye, and embedded in acrylic resin. Specimen blocks were sectioned in the mesiodistal direction, with marginal dye penetration (microleakage) examined using a 20× binocular microscope. Class I and II restoration microleakage was scored separately using a 0-3 ordinal ranking system. Statistical analyses were conducted using nonparametric testing at the p &lt; 0.05 level of significance.ResultsSignificantly less microleakage was associated with both Class I restorative groups (A and C), SonicFill bulk fill and Herculite Ultra incremental fill, compared to the Class II restorative groups (B and D), SonicFill/bulk fill and Herculite Ultra/incremental fill.ConclusionsAccording to the results of this study, the materials (SonicFill vs Herculite Ultra), C-factors, and insertion techniques (bulk vs incremental) did not appear to be significant influences with regard to marginal microleakage; however, the type of preparation cavity (Class I vs Class II) and the subsequent bonding surface (enamel vs dentin [cementum]) proved to be significant factors.

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