scholarly journals Vertical segmental anterior mandibular distraction to aid closure of a severe anterior open bite associated with an accentuated reverse curve of Spee

2021 ◽  
pp. 146531252110000
Author(s):  
Peter Fowler ◽  
Jennifer Haworth ◽  
Leon Steenberg
Keyword(s):  
Case Report ◽  
Open Bite ◽  
Plane Angle ◽  
Anterior Open Bite ◽  
Le Fort ◽  
Mandibular Distraction ◽  
Curve Of Spee ◽  
Mandibular Plane ◽  
Le Fort I ◽  
Lower Arch

Background: The correction of severe anterior open bite is technically challenging, often requiring the use of complex orthodontic mechanics and/or orthognathic surgery and has a relatively high risk of relapse. A marked reverse curve of Spee in the lower arch presents additional challenges when correcting a severe anterior open bite. Methods and Materials: A 22.2-year-old Caucasian man presented with concerns relating to poor anterior occlusion associated with a 1.3-cm anterior open bite. There was an accentuated reverse curve of Spee to the lower arch, an increased maxillary-mandibular plane angle and increased lower face height. Multidisciplinary treatment involving the use of segmental anterior mandibular distraction to level the curve of Spee before undertaking a Le Fort I posterior maxillary impaction is described in this case report. Results: Long-term post-treatment records showed stable anterior open bite correction. Conclusions: This case report illustrates the successful use of segmental anterior mandibular vertical distraction followed by conventional Le Fort I posterior impaction surgery to correct a severe anterior open bite associated with an accentuated reverse curve of Spee and high maxillary-mandibular plane angle.

scholarly journals Protraction Facemask Followed by Mandibular Cervical Headgear: an Alternative in the Treatment of Class III Malocclusion with Severe Anterior Open-Bite

2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Matheus Pithon ◽  
Luiz Antonio Bernardes
Keyword(s):  
Case Report ◽  
Treatment Modality ◽  
Open Bite ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Anterior Open Bite ◽  
Present Case Report ◽  
Maxilla And Mandible ◽  
Lower Arch

The present case report describes a conservative and uncommon treatment for class III malocclusion in a woman growing patient with aged eight years and four months. An unconventional treatment modality was used for the treatment of this malocclusion, reverse-pull headgear and distalisation of lower teeth using mandibular cervical headgear in the lower arch. At the end of the treatment (after 33 months), there was correction of the transversal and sagittal occlusal relationship between maxilla and mandible and correct dental intercuspation. Keywords Class III malocclusion; Open-bite; Orthodontics.

scholarly journals Multiloop edgewise archwire treatment for a patient with a severe anterior open bite and amelogenesis imperfecta

2021 ◽  
Author(s):  
Ahmed I. Masoud ◽  
T. Peter Tsay
Keyword(s):  
Open Bite ◽  
Amelogenesis Imperfecta ◽  
Radiographic Examination ◽  
Orthodontic Appliances ◽  
Plane Angle ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
Mandibular Plane ◽  
Mandibular Plane Angle

ABSTRACT Amelogenesis imperfecta is a rare hereditary disorder that affects dental enamel and is often associated with an anterior open bite. Orthodontic treatment of a 16-year-old female patient with hypocalcified amelogenesis imperfecta and a 9-mm anterior open bite was presented. Radiographic examination revealed a steep mandibular plane angle, an increased lower face height, a Class II skeletal pattern, and a convex profile. Additionally, the patient had stainless steel crowns on all upper and lower posterior teeth and composite veneers on the upper anterior teeth. The patient was treated nonsurgically using a multiloop edgewise archwire (MEAW). MEAW mechanics allowed for successful correction of the anterior open bite, with significant reduction in the mandibular plane angle and improvement in the patient's profile. No fixed retainers were used, results remained stable 78 months after removal of orthodontic appliances. MEAW mechanics should be considered for patients with large anterior open bites, although this technique requires excellent patient compliance.

scholarly journals Dental and skeletal components of Class II open bite treatment with a modified Thurow appliance

2014 ◽  
Vol 19 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Helder Baldi Jacob ◽  
Ary dos Santos-Pinto ◽  
Peter H. Buschang
Keyword(s):  
Class Ii ◽  
Open Bite ◽  
Control Group ◽  
State University ◽  
Plane Angle ◽  
Anterior Open Bite ◽  
Skeletal Changes ◽  
Mandibular Plane ◽  
School Of Dentistry ◽  
Experimental Group

INTRODUCTION: Due to the lack of studies that distinguish between dentoalveolar and basal changes caused by the Thurow appliance, this clinical study, carried out by the School of Dentistry - State University of São Paulo/Araraquara, aimed at assessing the dental and skeletal changes induced by modified Thurow appliance. METHODS: The sample included an experimental group comprising 13 subjects aged between 7 and 10 years old, with Class II malocclusion and anterior open bite, and a control group comprising 22 subjects similar in age, sex and mandibular plane angle. Maxillary/mandibular, horizontal/vertical, dental/skeletal movements (ANS, PNS, U1, U6, Co, Go, Pog, L1, L6) were assessed, based on 14 landmarks, 8 angles (S-N-ANS, SNA, PPA, S-N-Pog, SNB, MPA, PP/MPA, ANB) and 3 linear measures (N-Me, ANS-Me, S-Go). RESULTS: Treatment caused significantly greater angle decrease between the palatal and the mandibular plane of the experimental group, primarily due to an increase in the palatal plane angle. ANB, SNA and S-N-ANS angles significantly decreased more in patients from the experimental group. PNS was superiorly remodeled. Lower face height (ANS-Me) decreased in the experimental group and increased in the control group. CONCLUSIONS: The modified Thurow appliance controlled vertical and horizontal displacements of the maxilla, rotated the maxilla and improved open bite malocclusion, decreasing lower facial height.

scholarly journals Orthodontic Treatment of Dental Open Bite in an Adult: A Case Report

2013 ◽  
Vol 1 (1) ◽  
pp. 16-21
Author(s):  
HM Rizvi ◽  
MM Rana ◽  
ME Haq ◽  
RCS Dorth ◽  
MZ Hossain
Keyword(s):  
Case Report ◽  
Orthodontic Treatment ◽  
Open Bite ◽  
Class I ◽  
Anterior Open Bite ◽  
Skeletal Class ◽  
Mandibular Plane ◽  
Short Period ◽  
And Function

Case report of an adult Bangladeshi male aged 26 years who complained about ineffective chewing of food and unpleasant aesthetic look. The patient was diagnosed to have a 4 mms of anterior dental open bite on skeletal Class I with normal mandibular plane and palatal plane angles. Treatment was orthodontics alone with non-extraction. The main mechanics used to close the anterior open bite, were by the conventional aligning, leveling and arch contraction by standard edgewise technique. The result showed that it was possible to correct the open bite within a short period; however, the appliance was difficult to clean. The treatment was complete after 2 years with positive overbite of 3 mms and acceptable occlusion. The patient was happy with his new appearance and function. DOI: http://dx.doi.org/10.3329/bjodfo.v1i1.15973 Ban J Orthod & Dentofac Orthop, October 2010; Vol-1, No.1, 16-21

Skeletal and dento-alveolar stability of Le Fort I intrusion osteotomies and bimaxillary osteotomies in anterior open bite deformities

1997 ◽  
Vol 26 (3) ◽  
pp. 161-175 ◽  
Author(s):  
Theo J.M. Hoppenreijs ◽  
Hans Peter M. Freihofer ◽  
Paul J.W. Stoelinga ◽  
Dirk Bram Tuinzing ◽  
Martin A. van't Hof ◽  
...  
Keyword(s):  
Open Bite ◽  
Anterior Open Bite ◽  
Le Fort ◽  
Alveolar Stability ◽  
Le Fort I
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