The functional treatment of anterior-open bite: three case reports

2001 ◽  
Vol 25 (4) ◽  
pp. 275-286
Author(s):  
Banu Dinçer ◽  
Serpil Hazar
Keyword(s):  
Case Reports ◽  
Post Treatment ◽  
Open Bite ◽  
Functional Treatment ◽  
Posterior Region ◽  
Anterior Open Bite ◽  
Facial Height ◽  
Skeletal Open Bite ◽  
Vertical Development

Functional treatment of three skeletal open-bite patients with Bionator, Frankel IV and Posterior biteblock appliances is presented. Pretreatment and post treatment records were evaluated. Correction of malocclusion by changing direction of the mandibular development, adaptive bony development of the condyle, vertical development in posterior region, an increase in ramus length, a decrease in the lower facial height were observed in this report. The results of functional treatment of three appliances had different effect mechanisms.

scholarly journals Microscrew Anchorage in Skeletal Anterior Open-bite Treatment

2007 ◽  
Vol 77 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Chunlei Xun ◽  
Xianglong Zeng ◽  
Xing Wang
Keyword(s):  
Alveolar Bone ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Miniscrew Implants ◽  
Mandibular Plane ◽  
Lateral Cephalograms ◽  
Patient Cooperation ◽  
Skeletal Pattern ◽  
Skeletal Open Bite

Abstract Objective: To evaluate the effectiveness of miniscrew anchorage for intrusion of the posterior dentoalveolar region to correct skeletal open bite. Materials and Methods: The study was comprised of 12 patients (aged 14.3 to 27.2 years; mean 18.7 years) with anterior open bites. All the patients presented a Class II skeletal pattern and excessive posterior growth. Self-drilling miniscrew implants were inserted into the posterior midpalatal area and the buccal alveolar bone between the lower molars. A transpalatal and a lingual arch were used to maintain the molars on each side in order to avoid overrotation during intrusion. A force of 150 g was applied to the microscrews on each side to intrude the posterior teeth. Lateral cephalograms of all 12 patients were taken preintrusion and immediately after completion of the intrusion. The cephalometric films were measured and compared. Results: The results showed that the anterior open bites in 12 patients were all corrected in a mean of 6.8 months. Overbite increased by a mean of 4.2 mm (P < .001), from −2.2 mm in preintrusion to 2.0 mm in postintrusion. The maxillary and mandibular first molars were intruded for an average of 1.8 mm (P < .001) and 1.2 mm (P < .001), respectively. The mandibular plane angle was reduced by 2.3° (P < .001), which led to a counterclockwise rotation of the mandible with a significant decrease in the anterior facial heights (mean of 1.8 mm; P < .001). Conclusion: Miniscrew anchorage has the advantages of being a simpler procedure, being minimally invasive, and requiring minimal patient cooperation.

scholarly journals Perawatan Gigitan Terbuka Anteroposterior Tipe Skeletal dengan Teknik Straightwire

2014 ◽  
Vol 21 (2) ◽  
pp. 178
Author(s):  
Vega Mandala ◽  
Wayan Ardhana ◽  
Christnawati Christnawati
Keyword(s):  
Orthodontic Treatment ◽  
Open Bite ◽  
Treatment Result ◽  
Anterior Open Bite ◽  
Anterior Crowding ◽  
Straight Wire ◽  
Anterior Teeth ◽  
Precise Diagnosis ◽  
Mandibular Teeth ◽  
Skeletal Open Bite

Gigitan terbuka merupakan maloklusi yang bercirikan tidak terdapatnya tutup menutup gigi rahang atas dan bawah, dapat terjadi pada regio anterior maupun posterior dan dapat melibatkan dental maupun skeletal. Maloklusi ini memerlukan ketelitian dalam penentuan diagnosis dan perawatan untuk mendapatkan hasil perawatan yang baik dan kestabilan jangka panjang. Tujuan penulisan studi kasus ini adalah untuk menginformasikan manajemen pasien dengan gigitan terbuka tipe skeletal. Pasien pria berumur 19 tahun datang ke Klinik Ortodonsia FKG UGM dengan keluhan utama gigi depan yang tidak rata dan tidak dapat digunakan untuk menggigit. Pemeriksaan klinis menunjukkan pasien memiliki kebiasaan menelan dengan menjulurkan lidah. Pemeriksaan model studi menunjukkan maloklusi Angle kelas I dengan gigitan terbuka anterior dari regio premolar kedua kanan ke kiri sebesar 10,7 mm disertai malposisi gigi individual dan pergeseran garis tengah rahang bawah ke kiri. Pemeriksaan sefalometri menunjukkan relasi skeletal kelas II dengan retrusif bimaksila, rotasi mandibula searah jarum jam dan gigitan terbuka skeletal. Pasien menolak tindakan bedah ortognatik sehingga dilakukan perawatan ortodontik kamuflase. Perawatan diawali dengan latihan miofungsional untuk melatih cara penelanan yang benar dilanjutkan dengan perawatan ortodontik teknik straightwire dengan pencabutan empat gigi molar pertama. Penutupan gigitan terbuka menggunakan elastic box anterior. Hasil evaluasi menunjukkanpengurangan besar gigitan terbuka dari 10,7 mm menjadi 1,25 mm. Kesimpulannya elastic box anterior dapat digunakan untuk mengoreksi gigitan terbuka yang etiologinya melibatkan intrusi gigi anterior.  Skeletal Anteroposterior Open Bite Treatment with Straight Wire Technique. Open bite is a malocclusion with characteristic no overlapping between maxillar and mandibular teeth. This malocclusion may occur in anterior or posterior region and involved dental or skeletal. This malocclusion needed precise diagnosis and treatment to get a good treatment result and long term stability. The aim of this case report was to inform management of patient with skeletal open bite. A 19 years old male came to orthodontic clinic Faculty of Dentistry Gadjah Mada University with the chief complaint anterior crowding, and anterior teeth cannot be used to bite. Clinical finding showed patient had tongue thrusting habit. Study model analysis showed class I Angle malocclusion with 10.7 mm anterior open bite from right second premolar to left second premolar, with individual teeth malposition and mandibular midline shifting to the left. Cephalometric finding showed class II skeletal relationship with bimaxillar retrusive, clockwise mandibular rotation and skeletal open bite. This patient refused orthognatic surgery, so he received camouflage orthodontic treatment. This treatment was started with monofunctional exercise to correct the swallowing action then continued with straight wire orthodontic treatment with four first molar extractions. Anterior box elastic was used to close the bite. Evaluation result showed open bite was decreased from 10.7 mm to 1.25 mm. The conclusion was anterior box elastic could be used in open bite correction that involved anterior teeth intrusion as an etiology.

scholarly journals Radiographic Comparison of Vertical Skeletal and Dental Parameters in Skeletal Open Bite

2016 ◽  
Vol 62 (3) ◽  
pp. 330-333
Author(s):  
Mártha Krisztina Ildiko ◽  
Pálffy Balázs Ákos ◽  
Panaite Irinel
Keyword(s):  
Pearson Correlation ◽  
Statistical Significance ◽  
Randomized Study ◽  
Correlation Method ◽  
Open Bite ◽  
Cephalometric Analysis ◽  
X Rays ◽  
Facial Height ◽  
Mandibular Plane ◽  
Skeletal Open Bite

AbstractObjective: The purpose of our randomized study was to compare the skeletal and dental values in open bite cases using lateral cephalometric analysis and panoramic X-rays analysis and to evaluate if PR is a reliable diagnostic method in skeletal malocclusions.Methods: 21 (6 boys, 15 girls) patient with skeletal open bite were selected and both radiological examinations were performed. “Modified cephalometric analysis” on panoramic X-rays and Steiner’s cephalometric analysis was performed using AudaxCeph software. Statistical analysis was performed using the Pearson correlation method and SPSS statistical software for comparison.Results: Skeletal values like anterior facial height (AFH), angles between Frankfort horizontal and mandibular/palatal plane (ML/H and NL/H) showed no statistical significance, mandibular plane/ramus tangent angle (goniac angle) and mandibular plane/palatal plane angle (ML/RL, ML/NL) showed high or moderate (posterior facial height - PFH) significant statistical interrelation (r=0.46-0.80). Almost all dental parameters were statistically significant, from moderate to high (r=0.56-0.79). The only statistically insignificant dental parameter was the mesial cusp tip of the upper first molar/palatal plane (ms-NL) distance (r=0.32). Vertical skeletal and dental parameters on panoramic X-rays can moderately approximate lateral cephalomteric values. This means that mostly in skeletal malocclusions, panoramic X-rays cannot be used for quantitative determination of the parameters.

scholarly journals Early treatment of anterior open bite with functional orthopedic appliances. A case report

2017 ◽  
Vol 22 (2) ◽  
pp. 20-26
Author(s):  
Ana María Valencia ◽  
Ana María Hurtado ◽  
Jesús Alberto Hernández
Keyword(s):  
Clinical Findings ◽  
Open Bite ◽  
Respiratory Pattern ◽  
Orthopedic Treatment ◽  
Anterior Open Bite ◽  
Surgical Interventions ◽  
Functional Relationships ◽  
Clinical Changes ◽  
Skeletal Open Bite

Anterior open bites are characterized by altered occlusal relationships. They cause discrepancies at the jaws that trigger a parafunctional muscular imbalance throughout the stomatognathic system.When this alteration is intervened early,  again of normal functions can be achieved but also intervention causes facial changes that improve the aesthetics of the patient. It is important to take into consideration the complexity and the multifactorial etiology of anterior open bites to achieve their correction and long-term clinical stability. Different therapeutic approaches have been described for the treatment of anterior open bites including: orthodontics, functional orthopedics and even surgical interventions. Here We present a clinical case of a seven-year-old male patient who consulted for orthopedic treatment of an anterior open bite. Clinical findings determined a Class II cephalometric malocclusion with anterior skeletal open bite, oral respiratory pattern and atypical swallowing. Orthopedic treatment was done using Simoes Network 2 (SN2) functional appliances. At the first year of follow-up facial and intraoral clinical changes were noted. During the second year of follow-up radiographic changes showed improvement in craniofacial and functional relationships.  

scholarly journals Perawatan Ortodontik Gigitan Terbuka Anterior

2014 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Yuniar Zen
Keyword(s):  
Clinical Skill ◽  
Treatment Method ◽  
Open Bite ◽  
Treatment Modalities ◽  
Treatment Result ◽  
Anterior Open Bite ◽  
Orthodontic Patients ◽  
Orthognatic Surgery ◽  
The Stability ◽  
Skeletal Open Bite

Perawatan gigitan terbuka anterior telah lama dianggap sebagai tantangan bagi ortodontis. Prevalensi gigitan terbuka anterior antara 3,5% hingga 11% terdapat pada berbagai usia dan kelompok etnis, serta ada sekitar 17% pasien ortodonti memiliki gigitan terbuka. Stabilitas hasil perawatan gigitan terbuka anterior sangat sulit, karena adanya kombinasi diskrepansi anteroposterior dengan gigitan terbuka skeletal sehingga dibutuhkan tingkat keterampilan diagnosis dan klinis yang tinggi. Etiologi gigitan terbuka anterior sangat kompleks karena dapat melibatkan skeletal, dental, dan faktor-faktor habitual. Eliminasi faktor etiologi merupakan hal yang penting dalam perawatan gigitan terbuka anterior. Berbagai cara perawatan untuk koreksi gigitan terbuka anterior diantaranya bedah ortognatik dan perawatan ortodontik kamuflase, seperti high-pull headgear, chincup, bite blocks, alatfungsional, pencabutan gigi, multi-loop edgewise archwires dan mini implan. Stabilitas hasil perawatan adalah kriteria yang paling penting dalam menentukan cara perawatan gigitan terbuka anterior.Orthodontic Treatment of Anterior Open Bite. An anterior open bite therapy has long been considered a challenge to orthodontist. The prevalence of anterior openbite range from 3,5 % to 11% among various age and ethnic groups and it has been shown that approximately 17% of orthodontic patients have open bite. Stability of treatment result of anterior open bite with well-maintained results is difficult, because the combination of anteroposteriorly discrepancy with skeletal open bite requires the highest degree of diagnostic and clinical skill. The etiology is complex, potentially involving skeletal, dental and habitual factors. The importance of an anterior open bite therapy is to eliminate the cause of the open bite. Various treatment modalities for the correction of an anterior open bite have been proposed, orthognatic surgery and orthodontic camouflage treatment such as high-pull headgear, chin cup, bite blocks, functional appliances, extractions, multi-loop edgewise arch wires and mini implant. The stability is the most important criterion in deciding the treatment method for anterior open bite malocclusion.

Partial Glossectomy as an adjunct to Orthodontic Treatment of Anterior Open Bite Associated with Macroglossia: A Case Report

2021 ◽  
Vol 14 (1) ◽  
pp. 21-25
Author(s):  
Tarun K Mittal ◽  
Kulraj Achal ◽  
James T Taylor ◽  
Jay D Kindelan
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Clinical Relevance ◽  
Orthodontic Treatment ◽  
Post Treatment ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Bimaxillary Protrusion ◽  
Tissue Origin ◽  
Partial Glossectomy

Orthodontic treatment of an anterior open bite is one of the most challenging malocclusions to treat, especially with respect to post-treatment stability. Complete diagnosis and targeted treatment is required for successful post treatment stability. In instances where macroglossia is the primary aetiology, partial glossectomy will greatly improve post treatment stability. The following case report describes a patient with severe anterior open bite and bimaxillary protrusion secondary to macroglossia. Treatment was successfully performed with partial glossectomy and straight wire orthodontics. Post-treatment relapse was minimal. CPD/Clinical Relevance: This article describes a review of the aetiology of anterior open bite and documents one possible treatment option, when the main aetiology of the malocclusion is of soft tissue origin

scholarly journals Dynamic MRI Evaluation of Tongue Posture and Deglutitive Movements in a Surgically Corrected Open Bite

2006 ◽  
Vol 76 (6) ◽  
pp. 1057-1065 ◽  
Author(s):  
Seniz Karacay ◽  
Erol Akin ◽  
Kerim Ortakoglu ◽  
A. Osman Bengi
Keyword(s):  
Dynamic Mri ◽  
Class Ii ◽  
Open Bite ◽  
Class Ii Malocclusion ◽  
Anterior Open Bite ◽  
Posterior Portion ◽  
Upward Direction ◽  
Magnetic Resonance Imaging Mri ◽  
Skeletal Open Bite ◽  
Tongue Thrust

Abstract Tongue thrust usually develops in the presence of anterior open bite in order to achieve anterior valve function. In the literature, tongue thrust is described both as the result and the cause of open bite. If it is an adaptation to malocclusion, then tongue posture and deglutitive tongue movements should change after treatment. In this case report, an adult who had skeletal open bite and Class II malocclusion caused by mandibular retrusion was treated surgically. The mandible was advanced in a forward and upward direction with a sagittal split osteotomy. The open bite and Class II malocclusion were corrected and an increase in the posterior airway space (PAS) was observed. Pretreatment and posttreatment dynamic magnetic resonance imaging (MRI) revealed that tongue tip was retruded behind the incisors and contact of the tongue with the palate increased. It was also determined that the anterior and middle portions descended, whereas the posterior portion was elevated at all stages. Advancement of the mandible, correction of open bite, and an increase in PAS affected not only the tongue posture and deglutitive movements, but also the breathing pattern of the patient.

scholarly journals Dentoskeletal effects produced by removable palatal crib, bonded spurs, and chincup therapy in growing children with anterior open bite

2016 ◽  
Vol 86 (6) ◽  
pp. 969-975 ◽  
Author(s):  
Natalia Martins Insabralde ◽  
Renato Rodrigues de Almeida ◽  
José Fernando Castanha Henriques ◽  
Thais Maria Freire Fernandes ◽  
Carlos Flores-Mir ◽  
...  
Keyword(s):  
Analysis Of Variance ◽  
Open Bite ◽  
Treatment Modalities ◽  
Control Group ◽  
Anterior Open Bite ◽  
Lateral Cephalograms ◽  
Treatment Changes ◽  
Cephalometric Study ◽  
Post Hoc ◽  
Vertical Development

ABSTRACT Objective: To evaluate the dentoskeletal effects of different anterior open bite treatment modalities in children. Materials and Methods: This cephalometric study assessed changes resulting from different treatment approaches on 77 growing children with anterior open bite. A control group (n = 30) was used for comparison. Lateral cephalograms were available before treatment and after 12 months. The sample was divided into four groups: removable palatal crib associated with a chincup (G1), bonded spurs associated with a chincup (G2), chincup (G3), and nontreated control (G4). Statistical comparisons among the four groups were performed on T1 and the treatment changes using analysis of variance with Tukey's post hoc tests. Results: No statistically significant changes in skeletal variables were found among the groups, except for lower anterior face height (LAFH) increase in G1. Overall, effects in all of the treated groups were exclusively dentoalveolar. A larger overbite (OB) increase was observed in G1 and G2 when compared with G3 and G4. The maxillary incisors in G1 showed increased palatal tipping, retrusion, and more vertical dentoalveolar development as well as increased lingual tipping among mandibular incisors. There was less vertical development of maxillary and mandibular molars in G3. Conclusions: A removable palatal crib provided an improvement in OB (97.5%), followed by the bonded spurs (84.5%). Conversely, the chincup-only group did not have positive OB effects.

scholarly journals Dentoskeletal and Tongue Soft-Tissue Correlates: A Cephalometric Analysis of Rest Position

1985 ◽  
Vol 11 (3) ◽  
pp. 14-22
Author(s):  
Alan Lowe ◽  
◽  
Kenji Takada ◽  
Yoshiaki Yamagata ◽  
Mamoru Sakuda ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Principal Component ◽  
Correlation Factor ◽  
Open Bite ◽  
Occlusal Plane ◽  
Anterior Open Bite ◽  
Lower Incisor ◽  
Rest Position ◽  
Mandibular Teeth ◽  
Skeletal Open Bite

The relationship between dentoskeletal and tongue soft-tissue variables has been quantified in a sample of 60 adult females with normal and anterior open-bite malocclusions. Three lateral rest-position head films were obtained for each subject. A principal component analysis reduced the data base and six significant canonical correlations were identified. The first canonical correlation (r, = 0.962) represented a size-related correlation factor between the two groups of variables. Subjects with characteristics of a short face syndrome and some evidence of overbite had tongue tips positioned below the lower occlusal plane (r2 = 0.929). In contrast, skeletal open-bite subjects (r. = 0.759) revealed tongue tips ahead of and above the lower incisor teeth with the mandible in the rest position. Undererupted mandibular teeth (r5 = 0.666) were associated with a reduced tongue height and an inferior epiglottis; short tongue length (r6 = 0.563) correlated with a linear combination of upright central incisors, a small overjet, a low ANS angle, unerupted maxillary and mandibular teeth, and a steep occlusal plane. The multivariate statistical analysis extracted clinically significant associations between tongue soft-tissue and dentoskeletal variables. Tongue posture at rest in skeletal open-bite subjects appeared to be related to incisor position. (AM J ORTHOD 88: 333-341, 1985.)

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