scholarly journals Treatment outcomes of Class II malocclusion cases treated with miniscrew-anchored Forsus Fatigue Resistant Device: A randomized controlled trial

2017 ◽  
Vol 87 (6) ◽  
pp. 824-833 ◽  
Author(s):  
Osama Eissa ◽  
Mahmoud El-Shennawy ◽  
Safaa Gaballah ◽  
Ghada El-Meehy ◽  
Tarek El Bialy
Keyword(s):  
Controlled Trial ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Control Group ◽  
Mandibular Incisor ◽  
Treatment Groups ◽  
Lateral Cephalograms ◽  
Treatment Data ◽  
Group 2 ◽  
Forsus Fatigue Resistant Device

ABSTRACT Objective: To evaluate the skeletal, dental, and soft tissue effects of the Forsus Fatigue Resistant Device (FRD) used with miniscrew anchorage and compare them with those of the conventional Forsus FRD. Materials and Methods: This study was carried out on 38 patients. These patients were randomly allocated into three groups. The 14 patients in group 1 (aged 12.76 ± 1.0 years) were treated with the FRD appliance. In group 2, the 15 patients (aged 12.52 ± 1.12 years) received treatment with FRD using miniscrew anchorage, and the 9 patients in group 3 (aged 12.82 ± 0.9 years) received no treatment as a control group. Linear and angular measurements were made on lateral cephalograms before and immediately after Forsus treatment. Data were analyzed statistically using paired t-, ANOVA, and Tukey tests. Results: Class I molar relationship and overjet correction were achieved in both treatment groups. Although mandibular growth was statistically nonsignificant, there was a significant headgear effect on the maxilla. Mandibular incisor proclination, maxillary incisor retroclination, and distalization of maxillary molars were significant in both treatment groups. However, no significant differences were found between the treatment groups. Conclusions: Class II correction was mainly dentoalveolar in both treatment groups. Use of miniscrews with Forsus did not enhance mandibular forward growth nor prevent labial tipping of the mandibular incisors.

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 Treatment effects of the Forsus Fatigue Resistant Device used with miniscrew anchorage

2013 ◽  
Vol 84 (1) ◽  
pp. 76-87 ◽  
Author(s):  
Belma I. Aslan ◽  
Ebru Kucukkaraca ◽  
Cagri Turkoz ◽  
Mufide Dincer
Keyword(s):  
Control Sample ◽  
Class Ii ◽  
Control Group ◽  
Average Period ◽  
Linear Measurements ◽  
Treatment Groups ◽  
Maxillary Molars ◽  
Lateral Cephalograms ◽  
Mandibular Incisors ◽  
Forsus Fatigue Resistant Device

ABSTRACT Objective: To evaluate the dentofacial effects of the Forsus Fatigue Resistant Device (FRD) used with miniscrew anchorage (FRDMS) and compare them with those of conventional FRD and an untreated Class II control group. Materials and Methods: The sample consisted of 48 Class II subjects. Sixteen patients (13.68 ± 1.09 years of age) were treated with FRDMS, whereas 17 subjects (14.64 ± 1.56 years of age) were treated with only FRD. Also, a control sample of 15 untreated Class II subjects (14.13 ± 1.50 years of age) was constructed. Angular and linear measurements were made on 96 lateral cephalograms. Paired t, one-way analysis of variance, and Tukey tests were used for statistical analysis. Results: Class I molar relationship and overjet correction were achieved in an average period of 6.5 ± 1.97 and 5.5 ± 1.80 months in the FRDMS and FRD groups, respectively. No skeletal effect was determined in both treatment groups. Greater overbite correction was found in the FRD group. Retrusion and extrusion of maxillary incisors, distalization of maxillary molars, and extrusion of mandibular molars were significant in both treatment groups. Labial tipping of mandibular incisors was significantly greater in the FRD group than in the FRDMS group. Conclusion: Overjet and molar correction was totally dentoalveolar. Unfavorable labial tipping of mandibular incisors was effectively minimized with the usage of miniscrews.

scholarly journals Dental and skeletal changes in mild to moderate Class II malocclusions treated by either a Twin-block or Xbow appliance followed by full fixed orthodontic treatment

2015 ◽  
Vol 85 (6) ◽  
pp. 997-1002 ◽  
Author(s):  
Sayeh Ehsani ◽  
Brian Nebbe ◽  
David Normando ◽  
Manuel O Lagravere ◽  
Carlos Flores-Mir
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Control Group ◽  
Block Group ◽  
Two Phase ◽  
Mandibular Incisor ◽  
Twin Block ◽  
Treatment Groups ◽  
Skeletal Changes ◽  
Length Increase

ABSTRACT Objective:  To compare the short-term skeletal and dental effects of two-phase orthodontic treatment including either a Twin-block or an XBow appliance. Materials and Methods:  This was a retrospective clinical trial of 50 consecutive Class II cases treated in a private practice with either a Twin-block (25) or XBow (25) appliance followed by full fixed orthodontic treatment. To factor out growth, an untreated Class II control group (25) was considered. Results:  A MANOVA of treatment/observation changes followed by univariate pairwise comparisons showed that the maxilla moved forward less in the treatment groups than in the control group. As for mandibular changes, the corpus length increase was larger in the Twin-block group by 3.9 mm. Dentally, mesial movement of mandibular molars was greater in both treatment groups. Although no distalization of maxillary molars was found in either treatment group, restriction of mesial movement of these teeth was seen in both treatment groups. Both treatment groups demonstrated increased mandibular incisor proclination with larger increases for the XBow group by 3.3°. The Wits value was decreased by 1.6 mm more in the Twin-block group. No sex-related differences were observed. Conclusions:  Class II correction using an XBow or Twin-block followed by fixed appliances occurs through a relatively similar combination of dental and skeletal effects. An increase in mandibular incisor inclination for the XBow group and an increased corpus length for the Twin-block group were notable exceptions. No overall treatment length differences were seen.

scholarly journals Two Different Applications of Class II Elastics with Nonextraction Segmental Techniques

2007 ◽  
Vol 77 (4) ◽  
pp. 694-700 ◽  
Author(s):  
Aslihan Uzel ◽  
Ilter Uzel ◽  
M. Serdar Toroglu
Keyword(s):  
Treatment Time ◽  
Control Period ◽  
Class Ii ◽  
Control Group ◽  
Treatment Groups ◽  
Facial Height ◽  
Lateral Cephalograms ◽  
Division 1 ◽  
The Mean ◽  
Class Ii Elastics

Abstract Objective: To evaluate the relative effects of Class II elastics applied directly with utility arches (UAs) or with the Reciprocal Mini–Chin Cup (RMCC) appliance. Materials and Methods: Thirty patients with Class II division 1 malocclusion were included. Fifteen of them were treated with the RMCC appliance and the other 15 treated with Class II elastics on UAs. Lateral cephalograms of an additional 15 untreated persons having the same characteristics as the treatment groups were used as a control group. Results: The mean control period was 10 months. Class I molar and canine relationships were achieved in a mean treatment time of 4.6 months with the RMCC appliance and in 8.5 months with the elastics on UAs. The amount of overjet reduction was 4.7 mm in the RMCC group (87.87% dental) and 5.2 mm in the UA group (80.76% dental). The molar correction was 4.5 mm in the RMCC group (87.36% dental) and 2.0 mm in the UA group (51.47% dental). The anterior lower facial height increased in both of the treatment groups. Conclusions: The RMCC appliance is a valuable alternative for Class II elastic use in Class II cases in which the upper molars need to be moved to the distal more than the upper incisors.

scholarly journals Molar Changes with Cervical Headgear Alone or in Combination with Rapid Maxillary Expansion

2008 ◽  
Vol 78 (5) ◽  
pp. 847-851 ◽  
Author(s):  
Marcel Marchiori Farret ◽  
Eduardo Martinelli S. de Lima ◽  
Vanessa Pereira Araújo ◽  
Susana Maria Deon Rizzatto ◽  
Luciane Macedo de Menezes ◽  
...  
Keyword(s):  
Class Ii ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Maxillary Expansion ◽  
Lateral Cephalograms ◽  
Cervical Traction ◽  
Permanent Molars ◽  
Group 2 ◽  
First Permanent Molars ◽  
Group 1

Abstract Objective: To test the hypothesis that there is no difference in the distal movement of the maxillary first permanent molars when cervical headgear is used alone or in combination with rapid maxillary expansion. Materials and Methods: The sample was composed of 36 subjects (aged 9 to 13 years), treated in the Faculty of Dentistry, Pontifícia Universidade Cat;aaolica, Rio Grande do Sul, Brazil. The individuals were in good health and in their pubertal growth period. All had Class II division 1 malocclusion. The patients were divided into two groups: group 1 (22 subjects), Class II, with a normal transverse maxilla treated with cervical traction headgear (HG) 400 g 12 h/d, and group 2 (14 subjects), Class II maxillary transverse deficiency treated with rapid maxillary expansion plus cervical traction headgear (RME + HG). An additional group 3 (17 subjects) served as a control group and included individuals with the same characteristics. All subjects had two lateral cephalograms: initial (T1) and progress (T2), taken 6 months later. Differences between T1 and T2 were compared with the Student's t-test, and three groups were compared by the analysis of variance and Tukey multiple comparison test. Results: Results showed greater distal tipping and greater distal movement of the first permanent molars in group 1 (HG) than in group 2 (RME + HG), P < .05. No extrusion of first permanent molar occurred in either group (P > .05). Conclusion: The hypothesis was rejected. Cervical traction headgear alone produced greater distal movement effects in maxillary first permanent molars when compared with rapid maxillary expansion associated with cervical headgear.

scholarly journals Three-dimensional effects of the mini-implant–anchored Forsus Fatigue Resistant Device: A randomized controlled trial

2015 ◽  
Vol 86 (2) ◽  
pp. 292-305 ◽  
Author(s):  
Sherif A. Elkordy ◽  
Amr M. Abouelezz ◽  
Mona M. Salah Fayed ◽  
Khaled H. Attia ◽  
Ramy Abdul Rahman Ishaq ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Three Dimensional ◽  
Class Ii ◽  
Control Group ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Skeletal Effects ◽  
Implant Anchorage ◽  
Mandibular Incisors ◽  
Forsus Fatigue Resistant Device

ABSTRACT Objective:  To detect three-dimensionally the effects of using mini-implant anchorage with the Forsus Fatigue Resistant Device (FFRD). Materials and Methods:  The sample comprised 43 skeletal Class II females with deficient mandibles. They were randomly allocated into three groups: 16 patients (13.25 ± 1.12 years) received FFRD alone (Forsus group), 15 subjects (13.07 ± 1.41 years) received FFRD and mini-implants (FMI group), and 12 subjects (12.71 ± 1.44 years) were in the untreated control group. Three-dimensional analyses of cone beam computed tomographic images were completed, and the data were statistically analyzed. Results:  Class I relationship and overjet correction were achieved in 88% of the cases. None of the two treatment groups showed significant mandibular skeletal effects. In the FMI group, significant headgear effect, decrease in maxillary width, and increase in the lower facial height were noted. In the FMI group, retroclination of maxillary incisors and distalization of maxillary molars were significantly higher. Proclination and intrusion of mandibular incisors were significantly greater in the Forsus group. Conclusions:  FFRD resulted in Class II correction mainly through dentoalveolar effects and with minimal skeletal effects. Utilization of mini-implant anchorage effectively reduced the unfavorable proclination and intrusion of mandibular incisors but did not produce additional skeletal effects.

scholarly journals Class II correction in orthodontic patients utilizing the Mandibular Anterior Repositioning Appliance (MARA)

2019 ◽  
Vol 89 (3) ◽  
pp. 404-410 ◽  
Author(s):  
Anil Ardeshna ◽  
Frank Bogdan ◽  
Shuying Jiang
Keyword(s):  
Pearson Correlation ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Lateral Cephalograms ◽  
Orthodontic Patients ◽  
Mandibular Anterior Repositioning Appliance ◽  
And Control ◽  
Lower Molar

ABSTRACT Objectives: To evaluate skeletal and dentoalveolar changes produced by the Mandibular Anterior Repostioning Appliance (MARA) in the treatment of Class II malocclusion in adolescent patients. Materials and Methods: Lateral cephalograms of 24 patients, mean age 12.40 years, with a Class II malocclusion consecutively treated with MARA were compared with a historical control group. Changes were evaluated using the Pancherz superimposition and grid analysis pre- and posttreatment. Independent sample t-test, Mann-Whitney U-test, and Pearson correlation coefficient analysis were performed. Results: Significant differences were seen between the treatment and control groups during the 12 month period. Improvement in Class II relationship in the MARA group resulted from skeletal and dentoalveolar changes. There was a 7-mm molar correction and a 4.7-mm overjet reduction. There was also an increase in the mandibular base of 3.3 mm with the lower molar and incisor coming forward 2.6 mm and 2.2 mm, respectively. No significant headgear effect was shown on the maxilla. The maxillary incisor position remained unchanged, whereas the molar distalized 1.8 mm. The anterior lower facial height had an overall increase of 2.2 mm. Conclusions: The MARA was successful in achieving a Class I molar relationship and reducing the overjet in Class II malocclusions. This was the result of both skeletal and dentoalveolar changes.

scholarly journals Prospective study of dentoskeletal changes in Class II division malocclusion treatment with twin force bite corrector

2012 ◽  
Vol 83 (2) ◽  
pp. 319-326 ◽  
Author(s):  
Carlos Henrique Guimarães ◽  
José Fernando Castanha Henriques ◽  
Guilherme Janson ◽  
Marcio Rodrigues de Almeida ◽  
Janine Araki ◽  
...  
Keyword(s):  
Class Ii ◽  
Control Group ◽  
Facial Growth ◽  
Lateral Cephalograms ◽  
Before And After ◽  
Group 2 ◽  
In The Beginning ◽  
Experimental Group ◽  
Observation Period ◽  
Mandibular Incisors

ABSTRACT Objective: To evaluate the dentoskeletal changes of Class II malocclusion treatment with the Twin Force Bite Corrector (TFBC). Materials and Methods: The sample comprised 86 lateral cephalograms obtained from 43 subjects with Class II division 1 malocclusion; the subjects were divided into two groups. The experimental group comprised 23 patients with a mean initial age of 12.11 years who were treated with the TFBC for a mean period of 2.19 years. The control group included 40 lateral cephalograms from 20 Class II nontreated patients, with an initial mean age of 12.55 years and a mean observation period of 2.19 years. The lateral cephalograms were evaluated before and after orthodontic treatment in group 1 and in the beginning and end of the observation period in group 2. t-Tests were used to compare the initial and final cephalometric characteristics of the groups as well as the amount of change. Results: The experimental group presented greater maxillary growth restriction and mandibular retrusion than the control group, as well as greater maxillomandibular relationship improvement and greater labial tipping of the mandibular incisors. The results also showed a greater decrease in overbite and overjet in the experimental group, and there were no statistically significant differences in the craniofacial growth pattern between groups. Conclusions: The TFBC promotes restriction of anterior maxillary displacement without significant changes in mandibular length and position and improvement of maxillomandibular relationship without changes in facial growth and significant buccal tipping of mandibular incisors. Class II correction with the TFBC occurred primarily as a result of dentoalveolar changes.

scholarly journals Comparative effects of the Mandibular Protraction Appliance in adolescents and adults

2018 ◽  
Vol 23 (3) ◽  
pp. 63-72 ◽  
Author(s):  
Bruno D’Aurea Furquim ◽  
Guilherme Janson ◽  
Laura de Castro Cabrera Cope ◽  
Karina Maria Salvatore Freitas ◽  
José Fernando Castanha Henriques
Keyword(s):  
Soft Tissue ◽  
Treatment Time ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Mandibular Incisor ◽  
Lateral Cephalograms ◽  
Intergroup Comparison ◽  
Tissue Changes ◽  
Group 2 ◽  
Soft Tissue Changes

ABSTRACT Objective: The aim of this study was to compare the skeletal, dental, and soft tissue effects of the Mandibular Protraction Appliance (MPA) application in adolescent and adult Class II malocclusion patients. Methods: The sample comprised the pretreatment and posttreatment lateral cephalograms of 39 subjects presenting Class II malocclusion treated with the MPA and fixed appliances. Sample was divided into two groups: Group 1 comprised 23 subjects (10 male; 13 female), at a mean pretreatment age of 11.75 years, with a mean treatment time of 3.32 years; Group 2 included 16 subjects (7 male; 9 female), at a mean pretreatment age of 22.41 years, with a mean treatment time of 4.24 years. Intergroup comparison of the initial and final stages and treatment changes between the groups was performed with t tests, at p< 0.05. Results: The adults showed less significant amounts of skeletal, dentoalveolar and soft tissue changes than the adolescents. There was significantly greater palatal tipping of the maxillary incisors and retrusion of the upper lip in the adolescents. The adult group showed greater mandibular incisor proclination in the posttreatment stage. Conclusion: Adult patients treated with MPA showed less significant amounts of skeletal, dentoalveolar and soft tissue changes than adolescents.

scholarly journals Evaluation of the soft tissue treatment simulation module of a computerized cephalometric program

2014 ◽  
Vol 08 (02) ◽  
pp. 229-233
Author(s):  
Aslihan Zeynep Oz ◽  
Cenk Ahmet Akcan ◽  
Hakan El ◽  
Semra Ciger
Keyword(s):  
Soft Tissue ◽  
Vertical Plane ◽  
Class Ii ◽  
Maxillary Incisor ◽  
Upper Lip ◽  
Mandibular Incisor ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
Incisor Inclination

ABSTRACT Objective: The purpose of this study is to compare the accuracy of the treatment simulation module of Quick Ceph Studio (QCS) program to the actual treatment results in Class II Division 1 patients. Design: Retrospective study. Materials and Methods: Twenty-six skeletal Class II patients treated with functional appliances were included. T0 and T1 lateral cephalograms were digitized using QCS. Before applying treatment simulation to the digitized cephalograms, the actual T0-T1 difference was calculated for the SNA, SNB, ANB angles, maxillary incisor inclination, and protrusion and mandibular incisor inclination and protrusion values. Next, using the treatment simulation module, the aforementioned values for the T0 cephalograms were manually entered to match the actual T1 values taking into account the T0-T1 differences. Paired sample t-test were applied to determine the difference between actual and treatment simulation measurements. Results: No significant differences were found for the anteroposterior location of the landmarks. Upper lip, soft tissue A point, soft tissue pogonion, and soft tissue B point measurements showed statistically significant difference between actual and treatment simulation in the vertical plane. Conclusion: Quick Ceph program was reliable in terms of reflecting the sagittal changes that would probably occur with treatment and growth. However, vertical positions of the upper lip, soft tissue pogonion, soft tissue A point, and soft tissue B point were statistically different from actual results.

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