A retrospective cephalometric investigation of two fixed functional orthodontic appliances in class II treatment: Functional Mandibular Advancer vs. Herbst appliance

Kinzinger, Gero; Lisson, Jörg A.; Frye, Linda; Groß, Ulrich; Hourfar, Jan

doi:10.1007/s00784-017-2111-5

Cited by 20 publications

(34 citation statements)

References 55 publications

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“…Therefore, studies related to the effects of the device used in the methodology of the present study, showing the same effects on teeth 5,[17][18][19] , should be interpreted with caution, as there is a tendency to assume these changes lead to worse facial esthetic perception, which does not seem to fit the reality.…”

Section: Discussionmentioning

confidence: 94%

“…However, even with the present sample, it was possible to verify that cephalometric measurements tend to behave similarly in all patients, following the behavior detected in studies previously published in the literature that focused on cephalometric changes resulting from treatment with mandibular protractors. Thus, variable behaviors were expected to be similar, without differences between the two groups studied 5,[17][18][19] .…”

Section: Discussionmentioning

confidence: 99%

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Association between normative and perceived esthetic results after treatment of mandibular retrognathism

Marques

Menezes

Venezian

et al. 2019

Rev. odontol. UNESP

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Introduction This cross-sectional study aimed to associate the normative cephalometric results of mandibular retrognathism treatment with patient perception on the esthetic improvement of facial profile. Objective this cross-sectional study aimed to associate the normative cephalometric results of mandibular retrognathism treatment with patient perception on the esthetic improvement of facial profile. Material and method The normative cephalometric results were obtained from lateral cephalometric radiographs of a sample of 24 Class II malocclusion patients in the pubertal growth spurt. Such patients were treated with a mandibular advancement device and evaluated by comparing pre- and post-treatment variables. The same radiographs were used to produce standardized black silhouettes that were randomly arranged. Patients were instructed to choose their preferred profile and indicate the changes perceived using a 7-point Likert scale. The data were compared with cephalometric results using a mixed-model methodology for time-repeated measures, Student’s t-test, and t-test for heterogeneous variances, at 5% significance level. Result A rate of 75% of patients preferred post-treatment silhouettes and changes were perceived regardless of the choice of either pre- or post-treatment profile. There was no significant difference between the cephalometric variables of the tracings that produced the silhouettes considered better or worse after the evaluation. Conclusion There was no association between the cephalometric results after treatment and the perception of esthetic improvement by patients treated for mandibular retrognathia.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Association between normative and perceived esthetic results after treatment of mandibular retrognathism

Marques

Menezes

Venezian

et al. 2019

Rev. odontol. UNESP

View full text Add to dashboard Cite

show abstract

“…On the other hand, long-term side effects are more complex and involve skeletal and dental modifications. The mechanism behind these changes is the same as those described for orthodontic functional appliances: when the muscles are stretched by the device due to the forward posturing of the mandible, forces are transmitted to the bones and the teeth, and the long duration of these forces produces changes in skeletal morphology and teeth position 21 . The dental and skeletal changes are progressive, and thus patients should be monitored over time, and are also dependent on the duration of the MAD therapy 13 .…”

Section: Discussionmentioning

confidence: 95%

Evaluation of factors that influence the success rate of OSA treatment with a customised adjustable MAD device - a retrospective study

Burlon

Tepedino

Laurenziello

et al. 2020

Acta Otorhinolaryngol Ital

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SUMMARY The aim of the present study was to evaluate how the features of obstructive sleep apnoea (OSA) and the degree of mandibular advancement influence the outcomes of oral appliance therapy with a fully-customised mandibular advancement device (MAD) in an adult population. A total of 85 adult patients with mild to severe OSA were retrospectively selected. Polysomnography was taken before treatment and after 2 months treatment with overnight MAD. Treatment success was defined as a > 50% reduction in the Apnoea/Hypopnoea Index (AHI) with a residual AHI < 10. Binary logistic regression was used to evaluate the effects of AHI, oxygen desaturation index (ODI), gender and age on the success rate of MAD therapy. MAD therapy was successful in 77.7% of patients, and the ODI was a significant predictor of treatment success. OSA treatment with the MAD was successful in reducing the AHI in adult patients. An ODI value smaller than 33.3 was a significant predictor of treatment success.

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“…21,41,42 When comparing the results of the present study with other functional appliances evaluated in the same age period, it seems that treatment effects do not depend on the type of fixed functional appliance used. Kinzinger et al 6 found that most of the overjet and molar relationship correction were Class II Treatment Effects after the Growth Peak Cançado et al…”

Section: Intergroup Comparisonmentioning

confidence: 99%

Treatment Effects of the Herbst Appliance in Class II Malocclusion Patients after the Growth Peak

et al. 2020

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Objective The aim of this study was to evaluate dentoskeletal changes in the treatment of Class II malocclusion with the Herbst Cantilever Bite Jumper (CBJ) appliance, associated with multibracket appliances after the growth peak, at pretreatment. Materials and Methods A sample of 37 individuals was divided into two groups: the experimental group comprised 16 patients treated consecutively for a mean period of 2.52 years with the Herbst CBJ appliance associated with multibracket appliances. A total of 21 subjects (10 males and 11 females) with Class II malocclusion and mean age at T1 of 16.08 years were followed for a mean period of 2.12 years composed the control group. Comparisons between the two groups were performed using initial and final lateral cephalograms. Comparisons between experimental and control groups at pretreatment and of the treatment changes were performed by Mann–Whitney or independent t-tests. Results Experimental group exhibited a significantly greater labial inclination of the mandibular incisors in comparison to the control group. Additionally, significantly greater corrections in overbite, overjet, and molar relationship were observed in the experimental than in the control groups. Conclusion The effects of the Herbst CBJ appliance, associated with fixed appliances after the growth peak in Class II malocclusion treatment are correction in molar relationship toward a Class I relationship, decrease of the overjet, decrease of the overbite, and mandibular incisors labial inclination.

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A retrospective cephalometric investigation of two fixed functional orthodontic appliances in class II treatment: Functional Mandibular Advancer vs. Herbst appliance

Abstract: Treatment leads to overjet and molar relationship correction that is mainly caused by significant dentoalveolar changes.

Cited by 20 publications

References 55 publications

Association between normative and perceived esthetic results after treatment of mandibular retrognathism

Association between normative and perceived esthetic results after treatment of mandibular retrognathism

Evaluation of factors that influence the success rate of OSA treatment with a customised adjustable MAD device - a retrospective study

Treatment Effects of the Herbst Appliance in Class II Malocclusion Patients after the Growth Peak

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