Comparative Evaluation of Twin Block Appliance and Fixed Orthodontic Appliance in Early Class II Malocclusion Treatment: A Randomized Controlled Trial

Radwan, Eman Saad; Maher, Ahmed; Montasser, Mona A.

doi:10.5005/jp-journals-10024-3426

Cited by 2 publications

(2 citation statements)

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“…These results agreed with the work of Radwan et al who compare skeletal, dentoalveolar, and soft tissue changes between Twin Block and early fixed orthodontic appliance for class II division 1 malocclusion treatment [11]. Previous studies reported that Twin Block is an effective device to correct the anteriorposterior position of the lower jaw [11,2]. These in accordance with current study, as the SNB angle increased in phase T1 with average 3.45 degrees.…”

Section: Discussionsupporting

confidence: 93%

“…The result of the current study showed that the anterior-posterior position of the upper jaw changed in group A patients treated with modified Twin Block, as the SNA angle decreased in time T1 compared to time T0 with an average of 0.13 degrees. These results agreed with the work of Radwan et al who compare skeletal, dentoalveolar, and soft tissue changes between Twin Block and early fixed orthodontic appliance for class II division 1 malocclusion treatment [11]. Previous studies reported that Twin Block is an effective device to correct the anteriorposterior position of the lower jaw [11,2].…”

Section: Discussionsupporting

confidence: 88%

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Skeletal Effect of Modified Twin Block with Clear Plates Versus Conventional Twin Block in Class II Malocclusions – a Randomized Controlled Trial of Functional Appliances

2023

BSCR

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Purpose: The aim of this in-vivo study was to evaluate the skeletal changes of a modified Twin Block with clear plates versus a conventional Twin Block appliance in skeletal class II patients. Methods and Materials: A total of 32 patients with skeletal class II malocclusion contributing to mandibular retrognathism were involved. The sample was divided into two groups: group A: 16 patients will undergo to orthodontic treatment with modified Twin Block with clear plates; group B: 16 patients will undergo to orthodontic treatment with conventional Twin Block appliance. After 12 months of treatment a cephalometric radiograph was taken in central occlusion to study skeletal changes. Independent sample T-test was used for studying significance between groups. Results: There were significant differences in MP-SN; MP-SPP and SN-NPG values. While there were no statistically significant differences in SNA, SNB and ANB values. A significant difference was observed after 12 months of treatment for each group (P<0.05). Conclusion: Modified Twin Block with clear plates is an effective alternative device to treat skeletal class II malocclusion with vertical growth pattern.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 88%

Skeletal Effect of Modified Twin Block with Clear Plates Versus Conventional Twin Block in Class II Malocclusions – a Randomized Controlled Trial of Functional Appliances

2023

BSCR

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Skeletal and Dental Effects of Forsus Fatigue Resistance Device Versus Twin Block Appliance for Class II Malocclusion Treatment in Growing Patients: A Systematic Review

Jeha,

Haddad

2024

Clinical & Exp Dental Res

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ObjectiveThis study systematically searched the literature and assessed the available evidence to compare the efficacy of Forsus Fatigue Resistance Device (FRD) versus Twin Block Appliance (TBA) in treating class II malocclusion.Material and MethodsThe search for published literature was published up to May 28, 2024. The databases were included in the search: MEDLINE, PubMed, EMBASE, Cochrane Oral Trials Register, Tripe, Web of Science, and Scopus. Additionally, unpublished literature was searched on ClinicalTrials.gov, the National Research Register, and ProQuest Dissertations and Theses. All eligible studies were carefully reviewed and two reviewers independently extracted data. In cases of disagreement, an arbiter was consulted for resolution.ResultsTwo randomized controlled trials (RCTs) and five non‐RCTs were included in this review. The total number of patients included in the studies examining SNA, SNB, and ANB was 254. The studies also looked at the variables Go‐Gn, L1‐ML, and U1‐SN, with 279, 205, and 277 patients included for each variable, respectively. According to the evidence reported, TBA showed greater skeletal effects in terms of mandibular length and advancement. The pooled estimate revealed a statistically significant 1.3° increase in the SNB, and a decrease of −1.34° in the ANB angles for patients treated with TBA compared with those treated with FRD, with no statistically significant differences in the SNA angle. Most studies had a moderate risk of bias, while only two studies had a high risk of bias.ConclusionFRD has been proven to be an effective treatment device for correcting ANB and restricting SNA angle, similar to TBA. However, TBA appears to offer better mandibular length and SNB outcomes.

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Comparative Evaluation of Twin Block Appliance and Fixed Orthodontic Appliance in Early Class II Malocclusion Treatment: A Randomized Controlled Trial

Cited by 2 publications

References 36 publications

Skeletal Effect of Modified Twin Block with Clear Plates Versus Conventional Twin Block in Class II Malocclusions – a Randomized Controlled Trial of Functional Appliances

Skeletal Effect of Modified Twin Block with Clear Plates Versus Conventional Twin Block in Class II Malocclusions – a Randomized Controlled Trial of Functional Appliances

Skeletal and Dental Effects of Forsus Fatigue Resistance Device Versus Twin Block Appliance for Class II Malocclusion Treatment in Growing Patients: A Systematic Review

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