Long-term stability of soft tissue changes in anterior open bite adults treated with zygomatic miniplate-anchored maxillary posterior intrusion

Marzouk, Eiman; Kassem, Hassan

doi:10.2319/072317-490.1

Cited by 11 publications

(15 citation statements)

References 21 publications

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“…Limited long-term data were found in the literature regarding the stability of anterior open bite correction in adults treated with maxillary posterior segment intrusion using zygomatic miniplates. Recently, Marzouk and Kassem 5,17 evaluated 26 anterior open-bite patients, who had maxillary posterior segment intrusion with zygomatic miniplates. They found that the intruded maxillary molars relapsed by 10.2% in the first…”

Section: Resultsmentioning

confidence: 99%

Anterior Open Bite Treated by Maxillary Posterior Teeth Intrusion Using Zygomatic Miniplates: A Case Report

Asiry

2018

The Journal of Contemporary Dental Practice

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Aim: This case report aims to demonstrate the successful utilization of zygomatic miniplates in the treatment of an adult patient with anterior open bite (AOB). Background: During treatment of anterior open bite, incisor extrusion may compromise facial esthetics in cases with long facial height and/or sufficient incisor exposure at rest and smile.The intrusion of posterior teeth has the advantage of correcting vertical dimension and maintaining proper incisors show. Case description: The patient, a 22-year-old boy, had an anterior open bite of 4.5 mm with increased lower facial height, bilateral posterior crossbite, and two different occlusal planes in the upper arch. Titanium miniplates were used to intrude maxillary posterior teeth with a trans-palatal arch appliance to limit buccal tipping.The intrusive force was then applied through elastomeric chains placed bilaterally in the maxillary arch between the miniplate and posterior teeth.The anterior open bite was corrected within 7 months of intrusion with decreased lower facial heightand significant improvement in anteroposterior jaw relationship. Conclusion: This report emphasizes the significant role of facial appearance and smile. Clinical significance: Most of the non-surgical approaches are not suitable for open bite correction in cases with long facial height and/or sufficient incisor exposure at rest and smile because of their extrusive mechanics which compromise the facial and smile esthetics. The intrusion of posterior teeth using min iplates allowing a counterclockwise rotation of the mandible to correct anterior open bite without compromising facial esthetic and smile.

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Section: Resultsmentioning

confidence: 99%

Anterior Open Bite Treated by Maxillary Posterior Teeth Intrusion Using Zygomatic Miniplates: A Case Report

Asiry

2018

The Journal of Contemporary Dental Practice

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“…The data was derived from the sample previously reported by the authors [ 36 , 37 ]. The subjects recruited were 28 young adults (range = 19–28 years) presenting with 3–8-mm anterior open bite and posterior vertical maxillary dentoalveolar excess as determined by initial cephalograms.…”

Section: Methodsmentioning

confidence: 99%

“…Several studies have reported on the findings of skeletally anchored maxillary posterior teeth intrusion [ 19 – 37 ]. However, few studies [ 30 – 32 , 37 ] have reported soft tissue changes associated with posterior teeth intrusion (Table 1 ).…”

Section: Introductionmentioning

confidence: 99%

“…However, few studies [ 30 – 32 , 37 ] have reported soft tissue changes associated with posterior teeth intrusion (Table 1 ).…”

Section: Introductionmentioning

confidence: 99%

“…We have previously reported on the skeletal, dental, and soft tissue effects following maxillary posterior intrusion using zygomatic miniplates [ 35 – 37 ]. The objective of this paper is to present regression models that help provide more accurate prediction of the effect of molar intrusion on several skeletal, dental, and soft tissue parameters important for the clinician.…”

Section: Introductionmentioning

confidence: 99%

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Prediction of changes due to mandibular autorotation following miniplate-anchored intrusion of maxillary posterior teeth in open bite cases

Kassem

Marzouk

2018

Prog Orthod.

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BackgroundPrediction of the treatment outcome of various orthodontic procedures is an essential part of treatment planning. Using skeletal anchorage for intrusion of posterior teeth is a relatively novel procedure for the treatment of anterior open bite in long-faced subjects.MethodsData were analyzed from lateral cephalometric radiographs of a cohort of 28 open bite adult subjects treated with intrusion of the maxillary posterior segment with zygomatic miniplate anchorage. Mean ratios and regression equations were calculated for selected variables before and after intrusion.ResultsRelative to molar intrusion, there was approximately 100% vertical change of the hard and soft tissue mention and 80% horizontal change of the hard and soft tissue pogonion. The overbite deepened two folds with 60% increase in overjet. The lower lip moved forward about 80% of the molar intrusion. Hard tissue pogonion and mention showed the strongest correlations with molar intrusion. There was a general agreement between regression equations and mean ratios at 3 mm molar intrusion.ConclusionsThis study attempted to provide the clinician with a tool to predict the changes in key treatment variables following skeletally anchored maxillary molar intrusion and autorotation of the mandible.

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Factors Affecting the Failure of TADs and Efforts to Improve the Biomechanical Stability of TADs

Choi

Hwang

2020

Temporary Anchorage Devices in Clinical Orthodontics

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Long-term stability of soft tissue changes in anterior open bite adults treated with zygomatic miniplate-anchored maxillary posterior intrusion

Abstract: Soft tissue changes following maxillary posterior teeth intrusion with zygomatic miniplates and premolar extractions appear to be stable 4 years after treatment.

Cited by 11 publications

References 21 publications

Anterior Open Bite Treated by Maxillary Posterior Teeth Intrusion Using Zygomatic Miniplates: A Case Report

Anterior Open Bite Treated by Maxillary Posterior Teeth Intrusion Using Zygomatic Miniplates: A Case Report

Prediction of changes due to mandibular autorotation following miniplate-anchored intrusion of maxillary posterior teeth in open bite cases

Factors Affecting the Failure of TADs and Efforts to Improve the Biomechanical Stability of TADs

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