Nonsurgical treatment of an adult with skeletal Class III malocclusion, anterior crossbite, and an impacted canine

Author(s):  
Carlos Bellot-Arcís ◽  
Verónica García-Sanz ◽  
Vanessa Paredes-Gallardo
2021 ◽  
Author(s):  
Yiruo He ◽  
Yangyang Wang ◽  
Xinghai Wang ◽  
Jiangyue Wang ◽  
Ding Bai ◽  
...  

ABSTRACT Treatment of hyperdivergent skeletal Class III malocclusion is challenging for orthodontists, and orthognathic-orthodontic treatment is usually required. This report presents the successful nonsurgical treatment of a 20-year-old man who had a skeletal Class III malocclusion with anterior open bite, anterior and posterior crossbite, hyperdivergent growth pattern, steep occlusal plane, early loss of three first molars, and an uncommon convex profile with a retruded chin. An orthodontic camouflage treatment plan was chosen based on the etiology and the patient's complaints. Tooth #37 was extracted. Miniscrews were used for uprighting and intruding of the lower molars, distalization of the lower dentition, and flattening of the occlusal plane. After 34 months of active treatment, Class I relationships, proper anterior overjet and overbite, flat occlusal plane, and an esthetic facial profile were achieved. The results demonstrated that the biomechanics involved in the nonsurgical treatment assisted with miniscrews to distalize the mandibular dentition and flatten the occlusal plane while keeping the mandibular plane stable was effective for treating this hyperdivergent skeletal Class III patient with a convex profile and anterior open bite.


Author(s):  
D. J. Yakoub ◽  
O. I. Admakin ◽  
I. A. Solop ◽  
I. V. Startceva

Relevance. Skeletal Class III malocclusion is known to be one of the most difficult malocclusions to correct. Nonsurgical treatment of Class III in adults is a challenge; however, this patient refused surgery. A treatment method with Fixed Anterior Growth Guidance Appliance (FAGGA) was investigated in the study.Materials and methods. This case report presents a 37-year-old woman with skeletal Class III malocclusion for maxillary deficiency. As the patient didn’t agree to surgery, she was treated by Fixed Anterior Growth Guidance Appliance, followed by 3D SMILE® clear aligners. Fixed Anterior Growth Guidance Appliance was used initially. After 4 months, the appliance was removed and clear aligner treatment was initiated. Post-treatment radiographs showed improvement.Results. Intraorally, in the upper arch, a total of 4.00 mm of space were gained (about 2.00mm distal to each canine). The post-treatment cephalometric analysis showed a skeletal A-P Class I, the Upper incisor inclination to the optic plane was not significantly altered, ANS — antArc was improved by 1.5mm, the Effective Length of the Premaxilla increased by 2.6mm, U1 — ANS’ decreased by 1.7mm, Incisor mandibular plane angle (IMPA) autonomously improved by 11 degrees.Conclusions. Maxillary deficiency was corrected successfully with the Fixed Anterior Growth Guidance Appliance. The treatment is being continued by 3D SMILE® clear aligners. The goal was achieved despite the patient’s age and nonsurgical treatment.


2016 ◽  
Vol 6 ◽  
pp. 306-311
Author(s):  
Juan Carlos Pérez Varela ◽  
Beatriz Iglesias Sánchez

Introduction Class III malocclusions are considered one of the most difficult problems to treat. For us, the complexity of these cases is the esthetics of the face and smile because the treatment of these malocclusions without surgery produces a more retrusive face. Diagnosis and Etiology We present a case of an adult male patient with skeletal Class III malocclusion with several crowding and impacted canines, who was treated with extractions of the upper canines and lower premolars. Conclusions The result is acceptable in terms of occlusion function, esthetic of the smile, and facial esthetics.


2013 ◽  
Vol 18 (3) ◽  
pp. 94-100 ◽  
Author(s):  
Bruno Boaventura Vieira ◽  
Ana Carolina Meng Sanguino ◽  
Marilia Rodrigues Moreira ◽  
Elizabeth Norie Morizono ◽  
Mírian Aiko Nakane Matsumoto

INTRODUCTION: Orthodontic-surgical treatment was performed in patient with skeletal Class III malocclusion due to exceeding mandibular growth. Patient also presented upper and lower dental protrusion, overjet of -3.0 mm, overbite of -1.0 mm, congenital absence of tooth #22, teeth #13 and supernumerary impaction, tooth #12 with conoid shape and partly erupted in supraversion, prolonged retention of tooth #53, tendency to vertical growth of the face and facial asymmetry. The discrepancy on the upper arch was -2.0 mm and -5.0 mm on the lower arch. METHODS: The pre-surgical orthodontic treatment was performed with extractions of the teeth #35 and #45. On the upper arch, teeth #53, #12 and supernumerary were extracted to accomplish the traction of the impacted canine. The spaces of the lower extractions were closed with mesialization of posterior segment. After aligning and leveling the teeth, extractions spaces closure and correct positioning of teeth on the bone bases, the correct intercuspation of the dental arch, with molars and canines in Angle's Class I, coincident midline, normal overjet and overbite and ideal torques, were evaluated through study models. The patient was submitted to orthognathic surgery and then the post-surgical orthodontic treatment was finished. RESULTS: The Class III malocclusion was treated establishing occlusal and facial normal standards.


2012 ◽  
Vol 2 (2) ◽  
pp. 57-63 ◽  
Author(s):  
Amol Mhatre ◽  
Sachin S Doshi ◽  
M Jayarama ◽  
Shashank Gaikwad ◽  
Ravindranath LNU

ABSTRACT Class III treatment is a considerable clinical challenge and commonly includes (a) growth modification involving a chincup to restrain mandibular growth or a facemask to protract the maxilla, (b) dentoalveolar compensation or camouflage involving dental extractions and (c) orthognathic surgery. Surgical treatment is the preferred and most stable treatment for adult patients with severe skeletal class III malocclusion. Patients with borderline dentoalveolar compensation who are not willing to accept the costs, risks and potential complications of surgery can sometimes be treated successfully with camouflage orthodontics. In more extreme cases, however, conservative orthodontic treatment may lead to adverse side effects, such as periodontal disease and root resorption as well as poor long-term stability. It is not clear which mechanics are most appropriate or which patients are most likely to benefit from an orthodontic approach to severe skeletal class III malocclusion. In this list of alternatives, orthodontic treatment is often seen as either a less-desirable alternative to surgery or a treatment reserved for milder skeletal problems. This report questions this hierarchy of treatment options. How to cite this article Doshi SS, Jayarama M, Gaikwad S Mhatre A, Ravindranath. Nonsurgical Treatment of a Patient with Class III Malocclusion and Missing Maxillary Lateral Incisors: A Combined Orthodontic-Prosthodontic Approach. J Contemp Dent 2012;2(2):57-63.


2019 ◽  
Vol 90 (1) ◽  
pp. 3-12 ◽  
Author(s):  
Masahiro Seiryu ◽  
Hiroto Ida ◽  
Atsushi Mayama ◽  
Satoshi Sasaki ◽  
Shutaro Sasaki ◽  
...  

ABSTRACT Objectives To investigate the hypothesis that there is difference in the treatment outcomes of milder skeletal Class III malocclusion between facemask and facemask in combination with a miniscrew in growing patients. Materials and Methods Patients were randomly divided into two groups. In one group, the patients were treated with facemask therapy (FM group: 12 males, eight females, average age: 10 years, 5 months ± 1 year, 8 months). In the other group, patients were treated with facemask therapy along with a miniscrew (FM+MS group: 12 males, seven females, average age: 11 years, 1 month ± 1 year, 3 months). A lingual arch with hooks was fixed to the maxillary arch in both groups and a protractive force of 500 g was applied from the facemask to the hooks. The patients were instructed to use the facemask for 12 hours per day. In the FM+MS group, a miniscrew was inserted into the palate and fixed to the lingual arch. Results Mobility and loosening of the miniscrew were not observed during treatment. Lateral cephalometric analysis showed that SNA, SN-ANS, and ANB values were significantly increased in the FM+MS group compared with those for the FM group (SNA, 1.1° SN-ANS, 1.3° ANB, 0.8°). Increase in proclination of maxillary incisors was significantly greater in the FM group than in the FM+MS group (U1-SN, 5.0°). Conclusions During treatment of milder skeletal Class III malocclusion, facemask therapy along with a miniscrew exhibits fewer negative side effects and delivers orthopedic forces more efficiently to the maxillary complex than facemask therapy alone.


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