scholarly journals Comprehensive approach to simultaneous molar intrusion and canine retraction in the treatment of Class II anterior open bite using miniscrew anchorage

2020 ◽  
Vol 25 (3) ◽  
Author(s):  
Kaori Shirasaki ◽  
Yoshihito Ishihara ◽  
Hiroki Komori ◽  
Takashi Yamashiro ◽  
Hiroshi Kamioka
Keyword(s):  
Treatment Duration ◽  
Class Ii ◽  
Open Bite ◽  
Prolonged Treatment ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Canine Retraction ◽  
Maxillary Molars ◽  
Anterior Teeth ◽  
Molar Intrusion

ABSTRACT Introduction: Anterior open bite is one of the most difficult malocclusions to correct in orthodontic treatment. Molar intrusion using miniscrew anchorage has been developed as a new strategy for open bite correction; however, this procedure still has an important concern about prolonged treatment duration in the patient with anteroposterior discrepancy due to the separate step-by-step movement of anterior and posterior teeth. Objective: This article illustrates a comprehensive orthodontic approach for dentoalveolar open bite correction of an adult patient, by using miniscrew. Case report: A woman 19 years and 5 months of age had chief complaints of difficulty chewing with the anterior teeth and maxillary incisor protrusion. An open bite of -2.0 mm caused by slight elongation of the maxillary molars was found. The patient was diagnosed with Angle Class II malocclusion with anterior open bite due to the vertical elongation of maxillary molars. After extraction of the maxillary first premolars, concurrent movements of molar intrusion and canine retraction were initiated with the combined use of sectional archwires, elastic chains and miniscrews. Results: At 4 months after the procedure, positive overbite was achieved subsequent to the intrusion of maxillary molars by 1.5 mm and without undesirable side effects. Class I canine relation was also achieved at the same time. The total active treatment period was 21 months. The resultant occlusion and satisfactory facial profile were maintained after 54 months of retention. Conclusion: The presented treatment shows the potential to shorten the treatment duration and to contribute to the long-term stability for open bite correction.

scholarly journals Correction of open bite with temporary anchorage device-supported intrusion

2019 ◽  
Vol 9 ◽  
pp. 246-251
Author(s):  
Joy Chang ◽  
Shivam Mehta ◽  
Po-Jung Chen ◽  
Madhur Upadhyay ◽  
Sumit Yadav
Keyword(s):  
Treatment Approach ◽  
Transverse Dimension ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
Molar Intrusion ◽  
Mandibular Plane ◽  
Temporary Anchorage Device ◽  
Transpalatal Arch

This case report describes the use of temporary anchorage device (TAD)-supported molar intrusion to correct anterior open bite and achieve overjet correction. A 13-year-old female presented with a Class II skeletal profile, with increased overjet and anterior open bite. She was treated with a combination of intrusion of the posterior teeth and extrusion of anterior teeth. The intrusion of maxillary posterior teeth was done with a palatal TAD and a transpalatal arch on the upper first molars to control the transverse dimension. The patient’s mandibular plane angle was maintained with this treatment approach.

scholarly journals Infra-Zygomatic Mini Screws Compared to High Pull Headgear for Distalization And Intrusion of Maxillary Molars in Growing Patients with Class II Malocclusion: A Randomized Clinical Trial

2021 ◽  
Vol 2 (1) ◽  
pp. 14-19
Author(s):  
Ahmed K. Afify ◽  
Amr E. El-Dakroury ◽  
Sherif A. El-Kordy ◽  
Mostafa M. El-Dawlatly
Keyword(s):  
Clinical Trial ◽  
Clinical Study ◽  
Treatment Duration ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Maxillary Molars ◽  
Randomized Clinical Study ◽  
Molar Intrusion ◽  
Before And After ◽  
Patient Cooperation

Objective: The aim of the present randomized clinical study was to evaluate the distalization and intrusion effect of an Infra-zygomatic mini-screws supported appliance and compare it with high pull headgear appliance in treatment of growing patients with class II malocclusion. Methodology: 22 growing boys aged between (10 to 12 years) with class II div 1 malocclusion randomly divided to 2 equal groups. The first group treated with high pull headgear with acrylic splint and the second one treated with an Infra-zygomatic mini-screws supported appliance. The treatment duration was 8 months for both groups. Lateral cephalometric radiographs were taken before and after the treatment for each patient to be analyzed. Results: The maxillary first molar distalization was 2.58±2.31 mm in head gear group and 1.53±2.83 mm in mini-screws group. There was no significant maxillary first molar intrusion in both groups. There were no significant differences between the two groups. Conclusions: the mini-screws supported appliance can be used as the fixed replacement of the removable high pull headgear appliance with no need for patient cooperation.

scholarly journals Noninvasive and Multidisciplinary Approach to the Functional and Esthetic Rehabilitation of Amelogenesis Imperfecta: A Pediatric Case Report

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Juliana Feltrin de Souza ◽  
Camila Maria Bullio Fragelli ◽  
Marco Aurélio Benini Paschoal ◽  
Edson Alves Campos ◽  
Leonardo Fernandes Cunha ◽  
...  
Keyword(s):  
Case Report ◽  
Composite Resin ◽  
Preventive Treatment ◽  
Open Bite ◽  
Amelogenesis Imperfecta ◽  
Mixed Dentition ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Anterior Teeth

Case Report. An 8-year-old girl with amelogenesis imperfecta (AI) reported unsatisfactory aesthetics, difficulty in mastication, and dental hypersensitivity. The intraoral examination observed mixed dentition, malocclusion in anteroposterior relationships, anterior open bite, and dental asymmetry. A hypoplastic form of AI was diagnosed in the permanent dentition. A multidisciplinary planning was performed and divided into preventive, orthopedic, and rehabilitation stages. Initially, preventive treatment was implemented, with fluoride varnish applications, in order to protect the fragile enamel and reduce the dental sensitivity. In the second stage, the patient received an interceptive orthopedic treatment to improve cross-relationship of the arches during six months. Finally, the rehabilitation treatment was executed to establish the vertical dimension. In the posterior teeth, indirect composite resin crowns were performed with minimally invasive dental preparation. Direct composite resin restorations were used to improve the appearance of anterior teeth.Follow-Up. The follow-up was carried out after 3, 6, 12, and 18 months. After 18 months of follow-up, The restoration of integrity, oral hygiene, and patient satisfaction were observed .Conclusion. Successful reduction of the dental hypersensitivity and improvement of the aesthetic and functional aspects as well as quality of life were observed.

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 Replacement of Missing Anterior Teeth in a Patient with Chronic Mouth Breathing and Tongue Thrusting

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Satheesh B. Haralur ◽  
Ali Saad Al-Qahtani
Keyword(s):  
Tooth Loss ◽  
Periodontal Diseases ◽  
Mouth Breathing ◽  
Open Bite ◽  
Nasal Breathing ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
Anterior Guidance ◽  
Patient Will

The loss of anterior teeth has serious functional, esthetic disabilities, in addition to compromising the patients' quality of life. Various etiologies can be attributed to the anterior tooth loss, including trauma, caries, and periodontal diseases. The chronic mouth breathing due to nasal adenoids is known to enhance the gingival and periodontal diseases. The dental literature proves the association of nasal breathing, tongue thrusting, and anterior open bite. Arch shape and tooth position are primarily determined by the equilibrium of the forces from tongue and perioral musculature. Increased force from tongue musculature in the tongue thrusting patient leads to flaring of anterior teeth, making them susceptible for periodontal and traumatic tooth loss. Replacement of the anterior teeth in this patient will also help in restoration of anterior guidance, which is critical for the health of temporomandibular joint, posterior teeth, and musculature.

Orthodontic Treatment of Skeletal Class II Adolescent with Anterior Open Bite using Mini-Screws and Modified Palatal Anchorage Plate

2015 ◽  
Vol 39 (2) ◽  
pp. 187-192 ◽  
Author(s):  
YA Kook ◽  
JH Park ◽  
Y Kim ◽  
CS Ahn ◽  
M Bayome
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
And Control

This article presents a non-extraction orthodontic treatment case using mini-screws and a modified palatal anchorage plate (MPAP) to intrude the maxillary posterior teeth, and distalize the whole arch dentition and control the extrusion of the maxillary posterior dentition during distalization.

scholarly journals The Use of High Frequency Vibration and Clear Aligners in Management of an Adult Patient with Class III Skeletal Malocclusion with Open Bite and Severe Bimaxillary Protrusion: Case Report

2020 ◽  
Vol 8 (3) ◽  
pp. 75 ◽  
Author(s):  
Tarek El-Bialy
Keyword(s):  
Case Report ◽  
High Frequency ◽  
Open Bite ◽  
Team Approach ◽  
Class Iii ◽  
Anterior Open Bite ◽  
High Frequency Vibration ◽  
Skeletal Class ◽  
Canine Retraction ◽  
Anterior Teeth

Adult orthodontic patients with skeletal Class III malocclusion, open bite and bimaxillary dentoalveolar protrusion are complex problems that normally require surgical intervention to correct. This is a report of an adult female with a skeletal Class III jaw relationship; in addition, the patient had anterior open bite and bimaxillary dentoalveolar protrusion. The patient also had three premolars in the lower left quadrant. Treatment involved extracting the extra premolar distal to lower left canine, retraction of lower anterior teeth, closing extraction space and anterior open bite utilizing Invisalign clear aligners. The patient initially changed aligners every week before this was changed to 3–5 days after starting to use a high frequency vibration (HFV = 120 Hz) device. Satisfactory results were achieved in a relatively shorter period. Comparing before and after treatment cone beam computed tomography revealed that new bone has been formed labial to the lower incisors after their retraction/correction of their initial proclined position and the use of HFV and myofunctional therapy without gingival graft. The present case report shows the comprehensive multidisciplinary team approach in treatment for such cases and the advantage of using HFV to improve bone formation.

scholarly journals Negligible tooth resorptions after anterior open bite treatment using skeletal anchorage with miniplates

2020 ◽  
Vol 25 (4) ◽  
pp. 16-22
Author(s):  
Genivaldo dos Santos ◽  
Alberto Consolaro ◽  
Fernanda Meloti ◽  
Mauricio de Almeida Cardoso ◽  
Ertty Silva ◽  
...  
Keyword(s):  
Root Resorption ◽  
Open Bite ◽  
Dental Arch ◽  
Anterior Open Bite ◽  
Homogeneous Sample ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
Before And After ◽  
Applied Forces ◽  
External Apical Root Resorption

ABSTRACT Introduction: When miniplates are used as anchoring for orthodontic mechanics for anterior open bite correction by retraction of anterior teeth and posterior teeth intrusion and retraction, orthodontically induced inflammatory external apical root resorption is clinically negligible. Methods: A homogeneous sample of 32 patients was used, and the roots of the teeth were compared on CT scans performed before and after orthodontic treatment. Results: The observed root resorption was minimal, and this can be explained by the uniform distribution of forces in several teeth, simultaneously, in the set of the dental arch and in the bone that supports the teeth. Conclusion: The most important thing to prevent root resorption in orthodontic practice, besides being concerned with the intensity of the applied forces, is to be careful with its distribution along the roots of each tooth, in the dental arch and in the bone that supports the teeth.

scholarly journals Anterior Open Bite Closure: A Case Report

2011 ◽  
Vol 1 (1) ◽  
pp. 63-67
Author(s):  
Deepak Sharma ◽  
Hemant Kumar Halwai
Keyword(s):  
Case Report ◽  
Female Patient ◽  
Active Treatment ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Titanium Screw ◽  
Molar Intrusion ◽  
Facial Height ◽  
Titanium Screws

Anterior open bite is often caused by a downward rotation of the mandible and/or by excessive eruption of the posterior teeth. In such cases, it is difficult to establish absolute anchorage for molar intrusion by traditional orthodontic mechanics. This article reports the successful treatment of a severe skeletal anterior open bite case using titanium screw anchorage. A female patient of 31 years of age had open bite of 7 mm with increased facial height. The mini screws were implanted on both maxilla and the mandible, and an intrusion force was provided with elastic chains for 13 months. After active treatment of 19 months, her upper and lower first molars were intruded by about 3 mm each, and good occlusion was achieved. Her retrognathic chin and convex profiles were improved by an upward rotation of the mandible. Our result suggests that titanium screws are useful for intrusion of molars in anterior open bite cases.

Evaluation and Comparison of Stress Patterns and Teeth Displacement with Intrusion of Maxillary Posterior Segment by Skeletal Anchorage System (Infrazygomatic Crestal Bone Screw) and High Pull Headgear: A 3D Finite Element Study

2021 ◽  
Vol 55 (4) ◽  
pp. 367-376
Author(s):  
Malvi N. Thakkar ◽  
Dolly P. Patel ◽  
Sheron T. Bhanat
Keyword(s):  
Finite Element ◽  
Class Ii ◽  
Posterior Segment ◽  
Open Bite ◽  
3D Fem ◽  
Anterior Open Bite ◽  
Posterior Teeth ◽  
Bone Screw ◽  
Computed Tomographic ◽  
Stress Patterns

Introduction: In the last decades the application of the Finite Element Methodology (FEM) has become popular. It can calculate stresses and displacement in complex structures and can anticipate the tissue responses to orthodontic mechanics applied for treating different malocclusions. This study evaluated and compared the stress patterns and teeth displacement with application of 450g of intrusive force bilaterally on maxillary posterior segment utilizing a conventional old method, High-Pull Headgear (HPHG) and a newer method, Infrazygomatic Crestal Bone Screw (IZC-BS) using 3D-FEM. Method: A 3D-FEM model of the craniomaxillary segment with maxillary teeth was reconstructed from the Cone Beam Computed Tomographic image of a patient with class II div I malocclusion on class II skeletal base with anterior open bite and 450g of intrusive force was applied bilaterally on maxillary posterior segment utilizing HPHG and IZC-BS and stress patterns and teeth displacement were studied and compared. Result: Von Mises stresses on Zygomaticomaxillary, Zygomaticotemporal and Pterygomaxillary sutures and surface landmarks on maxillary, zygomatic, temporal and sphenoid bones were more pronounced and generalized for HPHG group. Intrusion, expansion and sagittal displacement of maxillary posterior segment were also more pronounced with HPHG group. Stresses weren’t present at the apical root areas of the maxillary posterior teeth for both the groups. Conclusion: On applying equal amount of intrusive force bilaterally to the maxillary posterior segment, stress patterns and teeth displacement were more pronounced and effective for HPHG group however; apical root areas of the maxillary posterior teeth in both the groups didn’t show any stresses.

Sign in / Sign up

Export Citation Format

Share Document