scholarly journals A Modified Three-piece Base Arch for en masse Retraction and Intrusion in a Class II Division 1 Subdivision Case

2017 ◽  
Vol 6 (1) ◽  
pp. 26-32
Author(s):  
Dhaval Ranjitbhai Lekhadia ◽  
Gautham Hegde

ABSTRACT This case report describes the orthodontic and orthopedic treatment of an 18-year-old male patient who presented with prognathic maxilla, deep bite, low mandibular plane angle, and proclined incisors. Modified three-piece base arch was used for the intrusion and retraction of maxillary incisor. En masse retraction was achieved in 6 months. Reduced time for retraction was attributed to a single stage of retraction unlike Burstone three-piece intrusion base arch where canines are individually retracted followed by retraction of incisors. A modified utility arch was used in lower arch followed by a continuous archwire technique. The case was finished using bite settling elastics on a continuous archwire. The step between canine and premolar was corrected in the finishing phase of treatment. The final treatment outcomes were satisfactory and true intrusion was achieved with proper selection of biomechanics. How to cite this article Lekhadia DR, Hegde G. A Modified Three-piece Base Arch for en masse Retraction and Intrusion in a Class II Division 1 Subdivision Case. Int J Experiment Dent Sci 2017;6(1):26-32.

2019 ◽  
Vol 9 ◽  
pp. 165-171
Author(s):  
Pornpan Jariyavithayakul ◽  
Chairat Charoemratrote

Objectives: The objectives of the study were to investigate the effect of lower posterior tooth extrusion on skeletal and dental changes in Class II division 1 deep bite short-faced growing patients. Materials and Methods: Twenty-two growing patients with Class II/1 malocclusion deep bite/short-face were treated using a pre-adjusted edgewise-fixed appliance. The curve of Spee (COS) was leveled by rectangular wire and posterior vertical elastic. Two consecutive lateral cephalometric radiographs were collected before and after treatment. Changes from the cephalometric analysis were compared with 22 untreated matched subjects during the observation period with independent t-test. Results: The reduction of deep bite from the COS in the treated group was 2.83 mm which was obtained by a greater amount of posterior extrusion (1.37 mm), than anterior intrusion (0.58 mm), and lower facial height significantly increased (3.70 mm). The treated group showed significant forward mandibular position from SNB (1.36°), Pg-Nperp (1.53 mm), and the skeletal relationship improved (ANB = −0.88°). The mandibular plane angles (SN-MP and FMA) showed no significant changes during treatment. Dental changes revealed significant decreases in overjet and overbite, whereas the position and inclination of the upper and lower incisors were not significantly different. Conclusions: The increase of lower facial height in Class II deep bite short-faced growing patients was successfully accomplished by lower posterior tooth extrusion with the use of rectangular wire with posterior vertical elastic. The mandibular plane angle did not change during treatment. Class II skeletal relationship improved by the forward position of the mandible in hypo- and normodivergent pattern subjects.


2011 ◽  
Vol 25 (1) ◽  
pp. 56-62 ◽  
Author(s):  
Leandro Silva Marques ◽  
Mônica Costa Armond ◽  
Maria Letícia Ramos-Jorge ◽  
Raquel Gonçalves Vieira de Andrade ◽  
Ana Maria Bolognese

2018 ◽  
Vol 21 (3) ◽  
pp. 304
Author(s):  
J.-L. Raymond

The orthodontic treatment of severe class II division 1 malocclusions is often difficult, which leads some specialists to offer a surgical correction of the overjet. Treatment is made complex by the value of the horizontal overlap as much as the « depth » of deep bite that is very often present alongside the malocclusion. This is why we are offering a treatment protocol including a FABP (Fixed Anterior Bite Plate) which will allow, if the patient cooperates, to correct the anatomic anomaly while concurrently establishing new masticatory cycles in order to stabilize and preserve the results obtained. It is this systemic approach of treatment that is the focus of this article.


2013 ◽  
Vol 18 (4) ◽  
pp. 70-81
Author(s):  
Osama Hasan Alali

INTRODUCTION: This article demonstrates the description and use of a new appliance for Class II correction. MATERIAL AND METHODS: A case report of a 10-year 5 month-old girl who presented with a skeletally-based Class II division 1 malocclusion (ANB = 6.5º) on a slightly low-angle pattern, with ML-NSL angle of 30º and ML-NL angle of 22.5º. Overjet was increased (7 mm) and associated with a deep bite. RESULTS: Overjet and overbite reduction was undertaken with the new appliance, Fixed Lingual Mandibular Growth Modificator (FLMGM). CONCLUSION: FLMGM may be effective in stimulating the growth of the mandible and correcting skeletal Class II malocclusions. Clinicians can benefit from the unique clinical advantages that FLMGM provides, such as easy handling and full integration with bracketed appliance at any phase.


2018 ◽  
Vol 8 (2) ◽  
pp. 55-59
Author(s):  
Ankita Gupta ◽  
Trilok Shrivastava

Class II, Division I malocclusion has been described as the most frequent treatment problem in orthodontic practice. Aim & objectives of the present case report was to evaluate the management of skeletal Class II division 1 malocclusion in non growing patient with extraction of upper first premolars. Clinical and cephalometric evaluation revealed skeletal Class II with Angles Class II division 1 malocclusion with mild mandibular anterior crowding and increased overjet, severe maxillary incisor proclination, mild mandibular crowding, exaggerated curve of spee, convex profile, incompetent lips, increased overjet and overbite. Maxillary first premolars were extracted followed by en-masse retraction of anteriors with the help of temporary anchorage devices (TADs) to avoid anchorage loss. Mandibular incisor was extracted to correct curve of spee. Following treatment marked improvement in patient’s smile, facial profile and lip competence were achieved and there was a remarkable increase in the patient’s confidence and quality of life.


Author(s):  
MW Ali ◽  
MZ Hossain

Aim & objectives of the present case report was to evaluate the management of skeletal Class II division 1 malocclusion in non growing patient with extraction of upper first premolars. Clinical and cephalometric evaluation revealed skeletal Class II division 1 malocclusion with severe maxillary incisor proclination, convex profile, average mandibular plane angle, incompetent lips, increased overjet and overbite. After extraction of upper 1st premolars, canine retraction was done which was followed by retraction of severely proclined upper anterior teeth by judicious control of third order bend in rectangular stainless steel arch wire with “V” loop . For anchorage management, intra oral anchorage with tip back & toe in bends in stainless steel arch wire was satisfactory. Following treatment marked improvement in patient’s smile, facial profile and lip competence were achieved and there was a remarkable increase in the patient’s confidence and quality of life. DOI: http://dx.doi.org/10.3329/bjodfo.v2i2.16165 Ban J Orthod & Dentofac Orthop, April 2012; Vol-2, No.2, 41-45


Author(s):  
Elif Yaman Dosdoğru ◽  
Feyza Nur Görken ◽  
Arzu Pınar Erdem ◽  
Evren Öztaş ◽  
Gülnaz Marşan ◽  
...  

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