A randomized clinical trial to assess the sagittal effects of Transforce transverse appliance (TTA) and NiTi palatal expander (NPE) on skeletal class II malocclusion in growing patients during retention phase – A cephalometric study using a historical control group

2020 ◽  
Vol 18 (4) ◽  
pp. 722-731
Author(s):  
Arun P. Nagrik ◽  
Wasundhara A. Bhad ◽  
Santosh J. Chavan ◽  
Umal H. Doshi
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Class Ii ◽  
Historical Control Group ◽  
Historical Control ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Cephalometric Study

Comparative Analysis of Dentoskeletal Changes of the Twin Block Appliance and the AdvanSync2 Appliance in Treatment of Skeletal Class-II Malocclusion in Pakistani Population: A Randomized Clinical Trial

2021 ◽  
Author(s):  
Fareena Ghaffar ◽  
Abdullah Jan ◽  
Obaid Akhtar ◽  
Alaina T. Mughal ◽  
Rooma Shahid ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Class Ii ◽  
Growth Spurt ◽  
Class Ii Malocclusion ◽  
Twin Block ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Significant Difference ◽  
Functional Appliances

Abstract Objective This study aimed to compare dentoskeletal changes in skeletal class-II malocclusion with removable twin block appliance and fixed AdvanSync2 appliance. Materials and Methods A prospective randomized clinical trial was conducted over a span of 1 year at AFID at Rawalpindi. Thirty patients with skeletal class-II malocclusion, 16 males (53.3%) and 14 females (46.6%), were randomly selected and divided in two equal groups (15 each) to be treated with either fixed functional appliances (FFAs) or with removable functional appliances (RFAs). Out of 30 patients, 15 between cervical vertebral maturation (CVM) stages of 2 and 3 were treated with RFA (twin block appliances) and remaining 15 between CVM stages of 4 and 5 were treated with FFA (AdvanSync2 appliances). Pretreatment (T1) and posttreatment (T2), angular variable, and linear variable were measured to compare the dentoskeletal effects between the two groups. Statitical Analysis Paired sample t-test was used to assess significant difference between variables at T1 (Pre-treatment) and T2 (Post-treatment) stage for both RFA and FFA group. Comparison among the RFA and FFA group was made using non-parametric Mann-Whitney U Test. IBM SPSS version 25.0 was used for evaluation. Results No significant difference was found in angular variables between the RFA and FFA groups (p > 0.05) with the exception of linear variables. Sella-posterior nasal spine (S-PNS) length significantly increased and Jarabak's ratio significantly decreased for FFA group (p = 0.010 and 0.045, respectively), when compared with RFA group. Conclusion Both the appliances, twin block (RFA) and AdvanSync2 (FFA), are effective for correction of skeletal class-II malocclusion. Both the appliances produced similar effects in the sagittal plane but for better vertical control twin block should be the appliance of choice. AdvanSync2 appliance could be preferred over twin block appliance when dentoalveolar and slight retrusive effect on the maxilla is desired especially for individuals in postpubertal growth spurt.

scholarly journals Evaluation of the miniplate-anchored Forsus Fatigue Resistant Device in skeletal Class II growing subjects: A randomized controlled trial

2018 ◽  
Vol 89 (3) ◽  
pp. 391-403 ◽  
Author(s):  
Sherif A. Elkordy ◽  
Amr M. Abouelezz ◽  
Mona M. S. Fayed ◽  
Mai H. Aboulfotouh ◽  
Yehya A. Mostafa
Keyword(s):  
Controlled Trial ◽  
Class Ii ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Mandibular Incisor ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Group 16 ◽  
Leveling And Alignment ◽  
Forsus Fatigue Resistant Device

ABSTRACT Objectives: To evaluate the use of direct miniplate anchorage in conjunction with the Forsus Fatigue Resistant Device (FFRD) in treatment of skeletal Class II malocclusion. Materials and Methods: Forty-eight females with skeletal Class II were randomly allocated to the Forsus plus miniplates (FMP) group (16 patients, age 12.5 ± 0.9 years), Forsus alone (FFRD; 16 patients, age 12.1 ± 0.9 years), or the untreated control group (16 subjects, age 12.1 ± 0.9 years). After leveling and alignment, miniplates were inserted in the mandibular symphysis in the FMP group. The FFRD was inserted directly on the miniplates in the FMP group and onto the mandibular archwires in the FFRD group. The appliances were removed after reaching an edge-to-edge incisor relationship. Results: Data from 46 subjects were analyzed. The effective mandibular length significantly increased in the FMP group only (4.05 ± 0.78). The mandibular incisors showed a significant proclination in the FFRD group (9.17 ± 2.42) and a nonsignificant retroclination in the FMP group (−1.49 ± 4.70). The failure rate of the miniplates was reported to be 13.3%. Conclusions: The use of miniplates with the FFRD was successful in increasing the effective mandibular length in Class II malocclusion subjects in the short term. The miniplate-anchored FFRD eliminated the unfavorable mandibular incisor proclination in contrast to the conventional FFRD.

scholarly journals Effects of skeletally anchored Class II elastics: A pilot study and new approach for treating Class II malocclusion

2017 ◽  
Vol 87 (4) ◽  
pp. 505-512 ◽  
Author(s):  
Selin Ozbilek ◽  
Ahmet Yalcin Gungor ◽  
Salih Celik
Keyword(s):  
Class Ii ◽  
Matched Pair ◽  
Sign Test ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Significant Group ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Two Miniplates ◽  
Class Ii Elastics

ABSTRACT Objective: To evaluate the skeletal, dentoalveolar, and soft tissue effects of skeletally anchored Class II elastics and compare them with a matched control group treated by a monobloc appliance for the correction of skeletal Class II malocclusion due to mandibular retrusion. Materials and Methods: Twelve patients (6 girls, 6 boys) were randomly divided into two groups. In the elastics group, six patients (12.9 ± 1.5 years of age; 3 boys, 3 girls) were treated with skeletally anchored Class II elastics. Two miniplates were placed bilaterally at the ramus of the mandible and the other two miniplates were placed at the aperture piriformis area of the maxilla. In the monobloc group (3 boys and 3 girls; mean age, 12.3 ± 1.6 years), patients used the monobloc appliance. The changes observed in each phase of treatment were evaluated using the Wilcoxon matched-pair sign test. Intergroup comparisons at the initial phase of treatment were analyzed by the Mann-Whitney U test. Results: There were statistically significant group differences in Co-Gn, B-VRL, U1-PP, U1-VRL, Ls-VRL, with significant increases in these parameters in the elastics group (P < .05). The mandibular incisors were protruded in the monobloc group (5.45 ± 1.23°), whereas they were retruded in the elastics group (−3.01 ± 1.66°; P < .01). Conclusions: The undesirable dentoalveolar effects of the monobloc appliance were eliminated by using miniplate anchorage. Favorable skeletal outcomes can be achieved by skeletal anchorage therapies which could be an alternative to treat skeletal Class II patients with mandibular deficiency.

scholarly journals A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion

2011 ◽  
Vol 12 (1) ◽  
pp. 14-18 ◽  
Author(s):  
G Anil Kumar ◽  
Amit Maheshwari
Keyword(s):  
Class Ii ◽  
Combination Group ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Mandibular Incisor ◽  
Lower Incisor ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Functional Appliances

ABSTRACT Aim The aims of this study were to evaluate the dental changes brought about by activator and activator headgear combination (ACHG) and to determine whether we can achieve control over the lower incisor proclination which is a side effect of using functional appliances; or not, while treating cases of skeletal class II malocclusions. Methods Lateral cephalograms of 45 skeletal class II division 1 patients were selected for the study. Fifteen of them were successfully treated with an Andresen activator and the other 15 with an activator headgear combination. Fifteen class II subjects who had declined treatment served as the control group. Cephalometric landmarks were marked by one author to avoid interobserver variability. Results The results revealed that both the activator and the activator headgear combination significantly (p < 0.001) affected dental variables measured. The mandibular incisor proclination was effectively controlled in the activator headgear combination group. Conclusion An activator headgear combination would offer itself as a better option compared with activator alone in the treatment of skeletal class II malocclusions especially in cases with proclined mandibular incisors. Clinical significance When one of the treatment goals is to achieve a greater control over mandibular incisor proclination in the treatment of Skeletal Class II malocclusions, employing a combination of activator and headgear may substantially improve clinical outcomes. How to cite this article Lall R, Kumar GA, Maheshwari A Kumar M. A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion. J Contemp Dent Pract 2011;12(1):14-18.

scholarly journals Evaluation of effect of PowerScopeTM class II corrector on skeletal, dental and Oro-pharyngeal airway dimension in Skeletal class II cases - A controlled prospective clinical study

2021 ◽  
Vol 7 (2) ◽  
pp. 144-149
Author(s):  
Vijaylaxmi Mendigeri ◽  
Sanjay Ganeshkar ◽  
Praveen Ramdurg ◽  
Shruti Singh ◽  
Nishi Grover ◽  
...  
Keyword(s):  
Class Ii ◽  
Control Group ◽  
Prospective Clinical Study ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Pharyngeal Airway ◽  
Skeletal Class Ii ◽  
And Control ◽  
Experimental Group ◽  
Lower Incisors

: The aim of this study was to evaluate the effect of PowerScope (Class II Corrector) on skeletal, dental and oro-pharyngeal airway dimensions in class II malocclusion with retrusive mandible. Twenty patients with age group of 11 to 14 were selected for this study. Experimental group underwent Power scope class II corrector therapy and control group, alignment of only upper arch respectively. Lateral cephalometric radiographs were taken in both experimental group and control group before and after 6 month of treatment. Sixteen measurements in that eight skeletal, five dental and three pharyngeal airway were assessed to know the effect of PowerScope Class II corrector on skeletal, dental and pharyngeal airway PowerScope Class II corrector after treatment showed significant change in SNB (P = 0.01*), ANB (P=0.001*), Inferior airway space (IAS) (P=0.006*), lower incisors position (P=0.0001*) and overjet (P=0.0001*) where as these values were insignificant on comparison with control group except for lower incisors position (P=0.001*) and overjet (P=0.0001*) indicating that PowerScope corrects class II malocclusion mainly by dento alveolar changes not have significant effect on skeletal and oro-pharyngeal airway. Power Scope (Class II corrector) corrects skeletal class II malocclusion mainly by dental changes and has insignificant effect on skeletal and oro-pharyngeal airway.

scholarly journals A Comparative Evaluation of Reliability of Beta and YEN Angle in Diagnosis of Skeletal Class II Malocclusion: A Lateral Cephalometric Study

2016 ◽  
Vol 6 (2) ◽  
pp. 101-103
Author(s):  
VK Ravindranath ◽  
Priya K Gupta ◽  
Vivek J Patni
Keyword(s):  
Comparative Evaluation ◽  
Correct Diagnosis ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Beta Angle ◽  
Maxilla And Mandible ◽  
Cephalometric Study

ABSTRACT Introduction An accurate evaluation of sagittal jaw relationship is important in orthodontic diagnosis and treatment planning. Numerous angular and linear measurements have been incorporated to assess anteroposterior jaw discrepancy between maxilla and mandible so as to reach the correct diagnosis. So the purpose of this study is to compare Beta angle and YEN angle used to measure anteroposterior dysplasia and to find which is the most reliable between them. Materials and Methods The sample comprised 26 pretreatment lateral cephalograms of Skeletal class II patients. Results Descriptive analysis was performed and highly significant values were found with both Beta angle and YEN angle. Conclusion Beta and YEN angles are significant ones to assess the sagittal jaw relationship between maxilla and mandible. How to cite this article Gupta PK, Karandikar GR, Ravindranath VK, Sonawane M, Patni VJ. A Comparative Evaluation of Reliability of Beta and YEN Angle in Diagnosis of Skeletal Class II Malocclusion: A Lateral Cephalometric Study. J Contemp Dent 2016;6(2):101-103.

Adenotonsilectomia e Classe II esquelética – estudo de casocontrole

2021 ◽  
Vol 14 (54) ◽  
pp. 89-97
Author(s):  
Taís Morais Alves Cunha ◽  
Carlos Maurício Cardeal Mendes
Keyword(s):  
Early Childhood ◽  
Young Patients ◽  
Class Ii ◽  
Control Group ◽  
Case Group ◽  
Class Ii Malocclusion ◽  
Craniofacial Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
The Impact

Introduction: The maxillomandibular lateral growth imbalance with mandibular retrusion related to the maxilla indicates the skeletal Class II pattern. This craniofacial morphological abnormality is often attributed to nasorespiratory obstruction due to pharyngeal and palatine tonsils hypertrophy. The adenotonsillectomy is indicated to young patients with respiratory obstruction. However, there is no information in the scientific literature concerning the impact of tonsils surgically removal on craniofacial growth and development. Objective: To identify the association between adenotonsillectomy and skeletal Class II. Material and Methods: An unpaired case-control study was performed. Adult subjects who agreed to participate filled a questionnaire and after identification of the skeletal pattern through radiographic cephalometric analysis were allocated into two groups: CASE GROUP composed of 23 subjects with skeletal Class II malocclusion and CONTROL GROUP composed of 27 subjects without skeletal Class II malocclusion. With specific software the images were evaluated and measured to compare craniofacial measurements between the experimental groups and this data was interpreted to verify the association between skeletal Class II and the occurrence of adenotonsillectomy in early childhood. Results: the adenotonsillectomy demonstrated protective potential for skeletal Class II development due to a strong epidemiological association between adenotonsillectomy and skeletal Class II anteroposterior discrepancy (ORC = 0.33), without gender interference (ORA = 0.91). Conclusions: Among the long-term benefits of performing adenotonsillectomy in early childhood, it may be considered the prevention of craniofacial growth alterations such as Class II maxillomandibular discrepancy.

scholarly journals Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

2021 ◽  
Vol 18 (18) ◽  
pp. 9793
Author(s):  
Maria Dolores Austro-Martinez ◽  
Ana I. Nicolas-Silvente ◽  
Eugenio Velasco-Ortega ◽  
Alvaro Jimenez-Guerra ◽  
Jose A. Alarcon
Keyword(s):  
Test Group ◽  
Class Ii ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Fixed Appliance ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Fixed Appliances ◽  
One Year

One of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertical dimensions in brachyfacial patients. A test group of 30 patients (16 boys and 14 girls, mean 11.9 years old) with Class II malocclusion due to mandibular retrognathism and brachyfacial pattern treated with Austro Repositioner and fixed appliance were compared to a matched untreated Class II control group of 30 patients (17 boys and 13 girls, mean age 11.7 years old). Lateral cephalograms were taken at T1 (initial records), T2 (end of treatment), and T3 (one year after treatment). Statistical comparisons were performed with a paired-sample t-test and two-sample t-tests. Significant improvements in the skeletal Class II relationship were observed in the treated group. The ANB angle decreased (4.75°), the SNB angle increased (3.92°), and the total mandibular length (Co-Pg) increased (8.18 mm) (p < 0.001). Vertical dimensions were also significantly modified, the FMA angle increased (3.94°), LAFH-distance increased (3.15 mm), and overbite decreased (3.35 mm). These changes remained stable one year after treatment. The Austro Repositioner was adequate for treating the skeletal Class II malocclusion resulting from the mandible retrusion in brachyfacial patients.

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