Miniscrews as an alternative for orthopedic traction of the maxilla: A case report

The aim of this study was to report the case of a Class III prepuberal patient treated by a maxillary protraction using four miniscrews. The screws were installed between maxillary first molars and second premolars and between mandibular canines and first premolars. A 1/4˝ intermaxillary elastics were used in both sides, ligating the upper-lower screws to perform a maxillary protraction and correction of the Class III malocclusion. A bite plate made by resin flow was made on lingual surfaces of the mandibular incisors to eliminate occlusal interference. After 16 months of treatment, it was possible to see a significant improvement of patient’s facial profile, with overcorrection in overjet and preservation of the tissues and integrity of dental roots.

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Skeletal Class III Malocclusion with Lateral Open Bite and Facial Asymmetry Treated with Asymmetric Lower Molar Extraction and Lingual Appliance: A Case Report

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18105381 ◽

2021 ◽

Vol 18 (10) ◽

pp. 5381

Author(s):

Vo Truong Nhu Ngoc ◽

Nguyen Thi Thu Phuong ◽

Nguyen Viet Anh

Keyword(s):

Case Report ◽

Open Bite ◽

Class Iii ◽

Class Iii Malocclusion ◽

Skeletal Class ◽

Facial Esthetics ◽

Lingual Appliance ◽

Lower Incisors ◽

Mandibular Incisors ◽

Molar Extraction

A skeletal Class III malocclusion with open bite tendency is considered very difficult to treat orthodontically without surgery. This case report describes the lingual orthodontic treatment of an adult skeletal Class III patient with mandibular deviation to the left side, lateral open bite, unilateral posterior crossbite, zero overbite and negative overjet. The lower incisors were already retroclined to compensate with the skeletal discrepancy. The patient was treated by asymmetric molar extraction in the mandibular arch to retract the lower incisors and correct the dental midline, with the help of intermaxillary elastics. Lingual appliance was used with over-torqued lower anterior teeth’s brackets to control the torque of mandibular incisors. After a 30-month treatment, satisfactory smile and facial esthetics and good occlusion was achieved. A 12-month follow-up confirmed that the outcome was stable. Asymmetric molar extraction could be a viable option to retract mandibular incisors in Class III malocclusion with lower dental midline deviation.

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Traumatically Induced Maxillary Retrusion—A Case Report of Orthodontic Management with the Protraction Headgear

British Journal of Orthodontics ◽

10.1179/bjo.15.1.11 ◽

1988 ◽

Vol 15 (1) ◽

pp. 11-16

Author(s):

P. A. Banks ◽

W. H. P. Bogues

Keyword(s):

Case Report ◽

Orthodontic Treatment ◽

Orthodontic Appliances ◽

Full Time ◽

Class Iii ◽

Class Iii Malocclusion ◽

Maxillary Protraction ◽

Surgical Reduction ◽

Traumatic Episode ◽

Removable Orthodontic Appliances

A 46-year-old male Caucasian with traumatically induced maxillary retrusion was referred for orthodontic treatment, eight weeks after the original fracture had occurred. Initial surgical reduction and fixation had been successful, when a second traumatic episode was encountered. This resulted in a further degree of posterior maxillary displacement, which was resistant to further surgical reduction. The resulting Class III malocclusion was treated using maxillary protraction headgear, in conjunction with removable orthodontic appliances and intermaxillary traction. Appliances were worn full time and inter-arch correction was achieved in six months. The resulting occlusion proved to be stable following the cessation of active treatment.

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Minimizing the compensatory effects of the Class III malocclusion orthodontic treatment with Biofunctional preadjusted prescription – Case report

Research Society and Development ◽

10.33448/rsd-v10i9.17934 ◽

2021 ◽

Vol 10 (9) ◽

pp. e57110917934

Author(s):

Wilton Souza Rêgo Netto ◽

Raquel Amarante ◽

Roberto Grec ◽

Ricardo Cesar Gobbi de Oliveira ◽

Renata Cristina Gobbi de Oliveira ◽

...

Keyword(s):

Case Report ◽

Side Effects ◽

Orthognathic Surgery ◽

Orthodontic Treatment ◽

Facial Appearance ◽

Class Iii ◽

Class Iii Malocclusion ◽

Maxillary Incisors ◽

Mandibular Incisors

Introduction: Class III malocclusion has skeletal and dental components that can often impair the patient's facial appearance. Its treatment may involve orthognathic surgery or compensatory orthodontics. Case report: This case report presents a Class III malocclusion compensatory orthodontic treatment performed with the Biofunctional prescription brackets. Biofunctional prescription presents a torque value of 0° for the maxillary incisors and +10° for the mandibular incisors, which counteracts to the side effects of the use of Class III intermaxillary elastics, minimizing it, providing a more stable, aesthetic and with a healthier periodontal occlusion. Conclusion: The Class III malocclusion compensatory orthodontic treatment performed with Biofunctional prescription obtains satisfactory results, even depending on the patient collaboration with the use of intermaxillary elastics.

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Early intervention of anterior cross bite malocclusion relating to functional class iii malocclusion

International Journal of Oral Health Dentistry ◽

10.18231/j.ijohd.2021.043 ◽

2021 ◽

Vol 7 (3) ◽

pp. 216-218

Author(s):

Anuj Bhardwaj ◽

Amit Bhardwaj ◽

Kratika Mishra ◽

Vaibhav Misra ◽

Shivani Bhardwaj

Keyword(s):

Case Report ◽

Early Intervention ◽

Functional Class ◽

Class Iii ◽

Class Iii Malocclusion ◽

Normal Position ◽

Bite Plate ◽

Removable Appliance ◽

Maxillary Arch

This case report describes the treatment of a13-year-old boy with anterior dental cross bite, unilateral cross bite and constricted maxillary arch with removable appliance to bring the teeth into a normal position. A removable acrylic appliance with a bite plate incorporating an expansion screw was used to correct the anterior dental cross bite and align the incisors.

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Skeletal Class III malocclusion treatment using mandibular and maxillary skeletal anchorage and intermaxillary elastics: a case report

Dental Press Journal of Orthodontics ◽

10.1590/2177-6709.24.5.052-059.oar ◽

2019 ◽

Vol 24 (5) ◽

pp. 52-59

Author(s):

Mehrnaz Fakharian ◽

Erfan Bardideh ◽

Mostafa Abtahi

Keyword(s):

Case Report ◽

Treatment Method ◽

Skeletal Anchorage ◽

Class Iii ◽

Class Iii Malocclusion ◽

Skeletal Class ◽

Maxillary Protraction ◽

Skeletal Malocclusion ◽

Mandibular Plane ◽

Surgical Treatments

ABSTRACT Introduction: Skeletal Class III malocclusion is one of the most challenging malocclusions to treat. In around 40% of Class III patients, maxillary retrognathia is the main cause of the problem and in most patients, orthopedic/surgical treatments includes some type of maxillary protraction. Objective: The aim of this case report was to describe a treatment method for a patient with maxillary retrognathia and Class III skeletal discrepancy using mandibular and maxillary skeletal anchorage with intermaxillary elastics. Case report: A 13-year-old boy with maxillary retrognathia and mandibular prognathism was treated using bilateral miniplates. Two miniplates were inserted in the mandibular canine area and two other miniplates were placed in the infrazygomatic crests of the maxilla. Class III intermaxillary elastics were used between the miniplates. Results: After eight months of orthopedic therapy, ANB angle increased by 4.1 degrees and ideal overjet and overbite were achieved. Mandibular plane angle was increased by 2.1 degrees and the palatal plane was rotated counterclockwise by 4.8 degrees. Conclusion: This case showed that the skeletal anchorage treatment method may be a viable option for treating patients with Class III skeletal malocclusion.

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Management of maxillary deficiency in a growing child with facemask therapy and RME- A case report

IP Indian Journal of Orthodontics and Dentofacial Research ◽

10.18231/j.ijodr.2021.028 ◽

2021 ◽

Vol 7 (2) ◽

pp. 167-170

Author(s):

Pooja U ◽

Naveen Aravind ◽

Rajkumar S Alle ◽

Lokesh NK ◽

Mayank Trivedi

Keyword(s):

Case Report ◽

Early Treatment ◽

Orthodontic Treatment ◽

Class I ◽

Class Iii ◽

Class Iii Malocclusion ◽

Maxillary Protraction ◽

Skeletal Effects ◽

Environmental Causes ◽

Maxillary Deficiency

Class III malocclusion is one of the most difficult problems to treat. It has a multifactorial etiology involving both genetic and environmental causes. The dental and skeletal effects of maxillary protraction with a facemask are well documented in several studies. Although incorporation of expansion appliance along with facemask therapy can improve correcting both sagittal and transverse discrepancy of maxilla. The following case shows early treatment of a 9 year old boy with maxillary deficiency using an expansion screw along with facemask. Facemask therapy was followed by fixed orthodontic treatment to settle the occlusion. Treatment was completed after 14 months with positive overjet, class I molar and canine relationship on right and left side.

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A case of tooth autotransplantation after long-term cryopreservation using a programmed freezer with a magnetic field

The Angle Orthodontist ◽

10.2319/030314-148.1 ◽

2014 ◽

Vol 85 (3) ◽

pp. 518-524 ◽

Cited By ~ 9

Author(s):

Masato Kaku ◽

Hiroshi Shimasue ◽

Junji Ohtani ◽

Shunichi Kojima ◽

Hiromi Sumi ◽

...

Keyword(s):

Magnetic Field ◽

Case Report ◽

Class Iii ◽

Class Iii Malocclusion ◽

Missing Teeth ◽

Sagittal Split Ramus Osteotomy ◽

Facial Profile ◽

Skeletal Class ◽

Tissue Cryopreservation

ABSTRACT This case report describes the treatment of a skeletal Class III malocclusion with autotransplantation of a cryopreserved tooth. To gain an esthetic facial profile and good occlusion, extraction of bimaxillary premolars and surgical therapy were chosen. The patient had chronic apical periodontitis on the lower left first molar. Although she did not feel any pain in that region, the tooth was considered to have a poor prognosis. Therefore, we cryopreserved the extracted premolars to prepare for autotransplantation in the lower first molar area because the tooth would probably need to be removed in the future. The teeth were frozen by a programmed freezer with a magnetic field (CAS freezer) that was developed for tissue cryopreservation and were cryopreserved in −150°C deep freezer. After 1.5 years of presurgical orthodontic treatment, bilateral sagittal split ramus osteotomy was performed for mandible setback. Improvement of the facial profile and the occlusion were achieved in the retention phase. Six years after the initial visit, the patient had pain on the lower left first molar, and discharge of pus was observed, so we extracted the lower left first molar and autotransplanted the cryopreserved premolar. Three years later, healthy periodontium was observed at the autotransplanted tooth. This case report suggests that long-term cryopreservation of teeth by a CAS freezer is useful for later autotransplantation, and this can be a viable technique to replace missing teeth.

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