Retrospective comparison of dental and skeletal effects in the treatment of Class II malocclusion between Herbst and Xbow appliances

Insabralde, Natalia Martins; Almeida, Márcio Rodrigues de; Almeida–Pedrin, Renata Rodrigues de; Flores-Mir, Carlos; Henriques, José Fernando Castanha

doi:10.1016/j.ajodo.2020.05.021

Cited by 4 publications

(10 citation statements)

References 20 publications

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“…Similar estudio presentan Sarul et al (2020), en el que reportaron una mejora en los ángulos ANB, SNA y SNB, un aumento en el parámetro WITS y un aumento en la distancia Co-Gn (Sarul et al, 2022). Del mismo modo, Martins y col. en el 2021 informaron que el tratamiento con la aparatología de Herbst produjo alteraciones dentales y esqueléticas favorables, de tal manera, cuando se busca un aumento de tamaño mandibular significativo, el Herbst podría ser considerado como el aparato de elección (Insabralde et al, 2021).…”

Section: Resultados Y Discusiónunclassified

Número Completo (marzo)

León-González

2023

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Section: Resultados Y Discusiónunclassified

Número Completo (marzo)

León-González

2023

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“…There is a consensus indicating that functional treatment of Class II malocclusion can effectively decrease overjet and improve facial profile attractiveness [9][10][11][12][13]. However, attractiveness is considered a subjective concept influenced by various factors, including nationality, culture, historical context, race and occupation [14].…”

Section: Introductionmentioning

confidence: 99%

Facial profile esthetics and its correlation with cephalometric measurements in Class II patients before and after functional orthodontic treatment: perception of orthodontists and laypersons

2024

Journal of Clinical Pediatric Dentistry

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Orthodontists heavily rely on cephalometric measurements to evaluate the esthetic outcomes of orthodontic treatments, while patients’ assessments of profile attractiveness are influenced by their personal esthetic preferences. The objective of this study was to compare facial esthetic evaluations between orthodontists and laypersons, examine the correlation between cephalometric measurements and assessments of facial attractiveness, and identify the cephalometric measurements that are most associated with profile attractiveness in teenage Class II patients. This study included 28 patients (17 boys and 11 girls, mean age of 11.83 ± 1.48 years) who fulfilled the inclusion criteria and were treated with activator appliances. An experienced orthodontist conducted objective cephalometric analyses before and after the treatment. The standard profiles of patients, pre- and post-treatment, were independently evaluated by 10 orthodontists and 20 laypersons. Pearson correlation analysis was used to analyze the relationships between objective cephalometric values and subjective facial esthetic ratings. The results indicated that laypersons generally assigned lower ratings to facial attractiveness compared to orthodontists. Significant differences in evaluations between orthodontists and laypersons were noted in the ratings of the upper lip position before treatment and the ratings of overall attractiveness, lower lip position and chin position after treatment. In addition, there were substantial correlations between objective measurements and the subjective scores provided by orthodontists. In contrast, the esthetic evaluations by laypersons correlated with only a limited set of objective measurements. The positions of the upper and lower incisors, the relationship of the upper and lower lip to E-line, and the Mentocervical Angle showed significant correlations with esthetic scores. In conclusion, the study reveals that laypersons were more critical of facial profiles compared to orthodontists. Notably, the positions of the upper and lower incisors, the E-line and the Mentocervical Angle had a significant impact on facial esthetics, highlighting their importance in evaluating orthodontic outcomes.

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“…Different fixed functional appliances were introduced; they may be rigid, hybrid, or flexible. The skeletal, dental, and soft tissue treatment outcomes of each type varied in the literature (10)(11)(12) .…”

Section: Introductionmentioning

confidence: 99%

“…Rigid FFAs permanently protrude the condyles away from the glenoid fossa, producing a maintained tissue strain. In contrast, the hybrid FFAs make intermittent condylar jumping because the patient can retrude the condyles back by the action of masticatory muscles (12) .…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Mandibular protraction appliance IV versus PowerScope in treatment of class II malocclusion; A comparative, randomized clinical trial

Abdel-Hamid

Abdel-Fattah

Abu-Shahba

2023

Al-Azhar Journal of Dental Science

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Objective: To evaluate and compare the efficacy of Mandibular protraction appliance IV (MPA-IV) and PowerScope (PS) in the treatment of skeletal Class II malocclusion patients. Subjects and methods: A total of 16 circumpubertal class II patients (ANB°>4°) with mandibular deficiency were randomly divided equally into two groups; group 1: treated by MPA-IV, their mean age was 14.98 ± 1.33 years, group 2: treated by PS appliance (American Orthodontics, Sheboygan, Wis), their mean age was 14.67 ± 1.37 years. In both groups, fixed functional appliances were installed for six months. Treatment outcomes were assessed by cephalograms taken immediately pre-and post-functional appliances therapy. Results: Intergroup comparisons of the mean treatment changes revealed significant improvements (P ≤ .05) in SNB°, SN-Pog°, Ar-Go-Me°, Co-Gn mm, B-Sv mm, Pog-Sv mm, S-Go mm, and lower lip advancement (Li-Sv mm and Pog'-Sv mm) in MPA-IV group. While in the PS group, there were significant greater decrease of SNA° and upper incisors retraction (P ≤ .05). Conclusion: Both appliances could be used efficiently in the treatment of class II malocclusion. MPA-IV produces superior mandibular advancement and lower lip projection, while the effects of PS are mainly dentoalveolar changes.

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Retrospective comparison of dental and skeletal effects in the treatment of Class II malocclusion between Herbst and Xbow appliances

Cited by 4 publications

References 20 publications

Número Completo (marzo)

Número Completo (marzo)

Facial profile esthetics and its correlation with cephalometric measurements in Class II patients before and after functional orthodontic treatment: perception of orthodontists and laypersons

Efficacy of Mandibular protraction appliance IV versus PowerScope in treatment of class II malocclusion; A comparative, randomized clinical trial

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