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 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 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 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 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 Optimization of Loading Condition for Maxillary Molar Intrusion with Midpalatal Miniscrews by Using Finite Element Analysis

2021 ◽  
Vol 11 (24) ◽  
pp. 11749
Author(s):  
Ornnicha Pooktuantong ◽  
Takeshi Ogasawara ◽  
Masayoshi Uezono ◽  
Pintu-on Chantarawaratit ◽  
Keiji Moriyama
Keyword(s):  
Finite Element ◽  
Open Bite ◽  
Unit Load ◽  
Anterior Open Bite ◽  
Element Analysis ◽  
Molar Intrusion ◽  
Apical Direction ◽  
Root Injury ◽  
Maxillary Molar ◽  
Transpalatal Arch

An anterior open bite is one of the most difficult malocclusions in orthodontic treatment. For such malocclusion, orthodontic miniscrew insertion into both buccal and palatal alveolar regions has been indicated for molar intrusion, but it involves a risk of tooth root injury. To solve the problem, a midpalatal miniscrew-attached extension arm (MMEA) is adopted. However, this method causes palatal tipping of the molar because intrusive loads were applied only from the palatal side. Currently, a transpalatal arch is added to avoi0d tipping movement, but it induces the patient’s discomfort. Hence, the objective of this study was to evaluate the loading conditions for maxillary molar intrusion without tipping movement, only by MMEA through finite element (FE) analysis. FE models of maxillary right first molar and surrounding tissues were created. Three hook positions of MMEA were set at 6.0 mm perpendicular intervals in the occluso-apical direction along the mucosal contour. An intrusive unit load was applied from the palatal side of the molar, and various counter loads were applied from the buccal side. An optimal counter load for molar intrusion without palatal tipping was observed in each hook position. In conclusion, an ideal maxillary molar intrusion can be achieved only by MMEA with an optimal counter load.

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.

scholarly journals Nonsurgical treatment of skeletal anterior open bite in adult patients: Posterior build-ups

2016 ◽  
Vol 87 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Arturo Vela-Hernández ◽  
Rocio López-García ◽  
Verónica García-Sanz ◽  
Vanessa Paredes-Gallardo ◽  
Felicidad Lasagabaster-Latorre
Keyword(s):  
Open Bite ◽  
Anterior Open Bite ◽  
Retention Period ◽  
Term Stability ◽  
Long Term Stability ◽  
Skeletal Changes ◽  
Molar Intrusion ◽  
Mandibular Plane ◽  
Lateral Cephalograms

ABSTRACT Objective: To (1) evaluate the efficacy of build-ups in the correction of anterior open bite in adults, (2) evaluate their efficacy in producing molar intrusion, (3) analyze skeletal and dental changes, and (4) assess the long-term stability. Materials and Methods: The sample consisted of 93 lateral cephalograms from 31 patients with skeletal and dental anterior open bite. The patients had received orthodontic treatment consisting of bonded resin blocks on the maxillary molars combined with Tip-Edge Plus bracket appliances. Cephalometric measurements were performed on radiographs taken before treatment (T1), after treatment (T2), and after a retention period (T3), which were analyzed and compared. Results: Significant dental and skeletal changes were observed after treatment. Molar intrusion averaging 1 mm; 1.44 and 1.57 mm extrusion of mandibular and maxillary incisors, respectively; and a mean of 3.98 mm overbite increase were observed. The mandibular plane angle showed a mean closure of 1.19°, and there was a mean decrease in anterior facial height of 0.7 mm. A mild relapse tendency was observed, but long-term stability was acceptable. Conclusions: Build-ups are an effective treatment alternative for anterior open bite in adults. Outcomes remain significantly stable during the retention period.

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.

scholarly journals Treatment of vertical maxillary excess without open bite in a skeletal Class II hyperdivergent patient

2017 ◽  
Vol 87 (4) ◽  
pp. 625-633 ◽  
Author(s):  
Cheol-Ho Paik ◽  
Hong-Sik Park ◽  
Hyo-Won Ahn
Keyword(s):  
Orthognathic Surgery ◽  
Class Ii ◽  
Open Bite ◽  
Posterior Teeth ◽  
Skeletal Class ◽  
Curve Of Spee ◽  
Skeletal Class Ii ◽  
Temporary Anchorage Device ◽  
Transpalatal Arch ◽  
Gummy Smile

ABSTRACT A 20-year-old woman visited the office complaining of a gummy smile and lip protrusion. She was diagnosed with vertical maxillary excess without open bite and skeletal Class II hyperdivergent pattern. She refused the surgical-orthodontic treatment option, although she wanted to correct the gummy smile and retruded chin. Differential intrusion of anterior and posterior teeth in both arches was necessary to maximize the skeletal treatment effects. In the maxilla, one palatal temporary anchorage device (TAD), an archwire with an accentuated curve of Spee, and a transpalatal arch were applied. In the mandible, an archwire with a reverse curve of Spee and two vertically positioned TADs were used. These simple mechanics contributed to the effective intrusion of the total upper and lower arches, correction of the gummy smile, and mandibular counterclockwise rotation, offering an alternative to orthognathic surgery for this patient.

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