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

Ghaffar, Fareena; Jan, Abdullah; Akhtar, Obaid; Mughal, Alaina Tariq; Shahid, Rooma; Shafique, Hafiza Zobia; Bibi, Khadija; Mehmood, Sundas; Afgan, Nimra; Zaheer, Rumeesha

doi:10.1055/s-0041-1739543

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…The former study presents with a low risk of bias but the latter presents with a high risk of selection bias thereby more care should be taken to avoid this for future studies. 15,16 Lastly comparing the original Herbst appliance to its modification which is the Advansync TM appliance in a randomized control trial, Kaushik et al 17 have reported that there was a significant increase in the mandibular length as well as a reduction of the total overjet. In both these parameters, the Herbst appliance produced better results as compared to the Advansync TM appliance although the latter produced significant lower incisor proclination.…”

Section: Discussionmentioning

confidence: 99%

Advansync in management of class II malocclusion: A systematic review

Lodd,

Ravindranath V.K,

Gheware

et al. 2024

JCO

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Class II malocclusions are of interest to practising orthodontists since they constitute a significant percentage of the cases they treat. In individuals with Class II malocclusions, there is an anteroposterior discrepancy between the maxillary and mandibular dentitions, which is usually accompanied by a skeletal discrepancy. In such malocclusions, a functional appliance (myofunctional or fixed functional) is chosen as a treatment method depending on the severity and need of the particular case. This systematic review aims to evaluate the dental-alveolar, skeletal and soft tissue changes with the use of Advansync™ (A Class II corrector/ fixed functional appliance) in the treatment of Class II malocclusion. A literature search was done on Pubmed, EbscoHost , Google Scholar, Science Direct. This was conducted by two reviewers independently and any conflicts in results were managed through discussion. A Risk of Bias was done for the final articles included in the study. A total of 3,099 records were identified while searching through the database based on Mesh terms and search strategies. Based on the inclusion and exclusion criteria’s the total articles which were eligible for the systematic review were six. As the study was specific in terms of age and gender there was a high risk of selection bias but low risk of reporting bias.Out of the 6 studies, 5 had a low risk of bias and based on their cumulative findings, the effectiveness of Advansync is similar to those of other Class II correctors. The advantage of Advansync over other correctors is that the appliance saves treatment time and can be incorporated from the second month of treatment thereby shortening the duration of treatment.Fixed Class II correctors are used widely in Orthodontics. The selection of the appropriate appliance for the patient is the need of the hour. Thus, this systematic review gives us an insight on the use of Advansync in Class II correction.

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Section: Discussionmentioning

confidence: 99%

Advansync in management of class II malocclusion: A systematic review

Lodd,

Ravindranath V.K,

Gheware

et al. 2024

JCO

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“…Class II malocclusion, a complex orthodontic issue, is characterized by a convex facial profile due to maxillary retrusion, mandibular protrusion, or both [ 1 ]. Approximately one in three individuals suffer from Class II malocclusion [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Twin Block appliance and Herbst appliance in the treatment of Class II malocclusion among children: a meta-analysis

Xu,

Fang,

Sui

et al. 2024

BMC Oral Health

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Background Our meta-analysis aimed to evaluate the efficacy of applying Herbst and Twin Block appliances in the treatment of Class II malocclusion among children. Methods Databases, including PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI), China VIP Database (VIP), and Wanfang were thoroughly searched from inception to August 9, 2023. The outcomes included skeletal, dental, and soft tissue changes. The weighted mean difference (WMD) was used as the effect indicator, and the effect size was expressed with a 95% confidence interval (CI). The heterogeneity of each outcome effect size was tested, and the heterogeneity statistic I2 ≥ 50% was analyzed by the random-effect model, otherwise, the fixed-effect model was conducted. Sensitivity analysis was performed. Results A total of 12 studies involving 574 patients were included in this meta-analysis. Herbst appliance had a statistically significant increase in mandibular body length (WMD: 1.44, 95% CI: 0.93 to 1.96, P < 0.001) compared with the Twin Block appliance. More increases in angle and distance of L1 to mandibular plane (MP) were found in the Herbst appliance compared with the Twin Block appliance. Significant and greater improvements in molar relationship (WMD: 0.79, 95% CI: 0.28 to 1.29, P = 0.002), posterior facial height (WMD: -1.23, 95% CI: -2.08 to -0.38, P = 0.005), convexity angle (WMD: -1.89, 95% CI: -3.12 to -0.66, P = 0.003), and Sella-Nasion plane angle (U1 to SN) (WMD: 3.34, 95% CI: 2.25 to 4.43, P < 0.001) were achieved in the Twin Block appliance. Herbst and Twin Block appliances produced similar effects in the skeletal and dentoalveolar changes including Sella-Nasion-point A (SNA), Sella-Nasion-point B, point A-Nasion-point B (ANB), overjet, and overbite. Conclusion As the findings revealed both Herbst and Twin Block appliances contributed successfully to the correction of Class II malocclusion. Compared with the Twin Block appliance, the Herbst appliance may have more advantages in mandibular bone movement. Twin Block therapy resulted in more improvement in the aesthetics of the face.

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“…The retarded mandible may cause the backward displacement of the tongue and hyoid bone, resulting in constriction of the upper airway (UA), which is one of the causative factors for the development of obstructive sleep apnea (OSA) syndrome [1,4] . As functional appliances, the Twin-Block appliances with maxillary expander are used at an early stage to wide the maxillary arch, release the retracted mandible, balance the muscles and beautify the facial pro le to a certain extent [5] . With the improved anteroposterior relation between maxilla and mandible, the tongue and hyoid bone following move forward, which may increase the volume of the UA theoretically [4,6] and be gradually concerned by orthodontists.…”

Section: Introductionmentioning

confidence: 99%

Effects of Twin-Block with expanding device on the upper airway in growing children with skeletal class II malocclusion -a retrospective study based on the consistency of three-dimensional data and two-dimensional data

Mao

et al. 2023

Preprint

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Objectives Skeletal class II malocclusion is one of the most common malocclusions. Among functional appliances for skeletal class II malocclusion, the Twin-Block appliance with maxillary expander is effective in reposition the mandible forward. In this study, we focused our efforts on investigating the effects of Twin-Block appliances with maxillary expander on the upper airway in growing children with skeletal class II malocclusion by tracing and measuring lateral cephalograms after evaluating the consistency of three-dimensional CBCT data and two-dimensional lateral cephalogram data. Materials and Methods One hundred and two patients with skeletal class II malocclusion from 9 to 15 years old (11.37 ± 2.80, Male/Female ratio = 1:1) were selected to evaluate the consistency of CBCT data and lateral cephalogram data. The strongly and moderately correlated segments were then selected to study the effects of Twin-Block with maxillary expander on the upper airway in 66 growing children with skeletal class II malocclusion (11.31 ± 1.23 years old, Male/Female ratio = 1:1) on lateral cephalograms. Results The results showed strong significant correlation in the nasopharynx (r = 0.708), moderate significant correlations in the overall upper airway (r = 0.641), velopharynx (r = 0.553) and glossopharynx (r = 0.575), but weak correlation in the hypopharynx (r = 0.323). The corresponding determination coefficient (R2) was also showed by the Scatter Plot analysis. Moreover, compared with the pre-treatment data (T1), the total area of the upper airway, the area of nasopharynx, velopharynx and glossopharynx after functional treatment (T2) increased statistically and significantly. Conclusions Lateral cephalogram can reflect the volume of nasopharynx and oropharynx in skeletal class II children to a certain extent, while the Twin-Block appliances with maxillary expander can widen the volume of nasopharynx and oropharynx significantly. Clinical relevance The lateral cephalogram is reliable to analyze the nasopharynx,velopharynx and glossopharynx in orthodontic clinical practice. The Twin-Block appliances with maxillary expander has a positive effect on skeletal Class II patients with airway stenosis.

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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

Cited by 7 publications

References 30 publications

Advansync in management of class II malocclusion: A systematic review

Advansync in management of class II malocclusion: A systematic review

Comparison of Twin Block appliance and Herbst appliance in the treatment of Class II malocclusion among children: a meta-analysis

Effects of Twin-Block with expanding device on the upper airway in growing children with skeletal class II malocclusion -a retrospective study based on the consistency of three-dimensional data and two-dimensional data

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