A cephalometric evaluation of simultaneous face mask/rapid maxillary expansion in the mixed dentition

1985 ◽  
Vol 87 (1) ◽  
pp. 87
Author(s):  
David Wemmer
2015 ◽  
Vol 20 (1) ◽  
pp. 85-96 ◽  
Author(s):  
Daniele Nóbrega Nardoni ◽  
Danilo Furquim Siqueira ◽  
Mauricio de Almeida Cardoso ◽  
Leopoldino Capelozza Filho

INTRODUCTION: Prognosis is the main limitation of interceptive treatment of Class III malocclusions. The interceptive procedures of rapid maxillary expansion (RME) and face mask therapy performed in early mixed dentition are capable of achieving immediate overcorrection and maintenance of facial and occlusal morphology for a few years. Individuals presenting minimal acceptable faces at growth completion are potential candidates for compensatory orthodontic treatment, while those with facial involvement should be submitted to orthodontic decompensation for orthognathic surgery. OBJECTIVES: To investigate cephalometric variables that might predict the outcomes of orthopedic treatment with RME and face mask therapy (FM). METHODS: Cephalometric analysis of 26 Class III patients (mean age of 8 years and 4 months) was performed at treatment onset and after a mean period of 6 years and 10 months at pubertal growth completion, including a subjective facial analysis. Patients was divided into two groups: success group (21 individuals) and failure group (5 individuals). Discriminant analysis was applied to the cephalometric values at treatment onset. Two predictor variables were found by stepwise procedure. RESULTS: Orthopedic treatment of Class III malocclusion may have unfavorable prognosis at growth completion whenever initial cephalometric analysis reveals increased lower anterior facial height (LAFH) combined with reduced angle between the condylar axis and the mandibular plane (CondAx.MP). CONCLUSION: The results of treatment with RME and face mask therapy at growth completion in Class III patients could be predicted with a probability of 88.5%.


2020 ◽  
Vol 44 (6) ◽  
pp. 459-463
Author(s):  
Fatma Deniz Uzuner ◽  
Tuba Tortop ◽  
Şenol Gülşen ◽  
Selin Kale Varlık

Objective: The aim of this study was to evaluate changes in the mandibular dental arch and incisor alignment induced by combined bonded Rapid Maxillary Expansion (RME) and Face Mask (FM) therapy in the mixed dentition stage in which leeway space was used throughout the treatment. Study Design: This retrospective study evaluates pretreatment (T0) and posttreatment (T1) cephalometric radiographs and orthodontic models of 25 patients (mean age: 10.75±2.64), in mixed dentition, having skeletal Class 3 anomaly (ANB<0) with maxillary retrognatism (SNA=77.2±0.68) and bilateral posterior crossbite treated with bonded Hyrax RME-FM. Mean treatment duration was 10.4 months. Dental model measurements were performed using the 3Shape OrthoAnalyzerTM 2013-1 program. Changes in the mandibular incisor and first molar positions were determined on cephalometric radiographs. Statistical evaluation was done with a paired t-test. Results: A significant increase of 1.2 mm was found in intermolar width (p<0.001) in the mandibular dental arch. There was a significant decrease (1.4 mm) (p<0.001) in arch depth and an increase in arch length discrepancy (1.7mm)(p<0.01). There was a significant increase (0.8mm) (p<0.05) in the incisors’ irregularity score (LII). IMPA showed a significant decrease (p<0.05). Conclusion: Clinicians should be aware that mandibular crowding tends to increase during this type of combined therapy.


2021 ◽  
pp. 105566562199336
Author(s):  
Akansha Bansal Agrawal ◽  
Harshavardhan Kidiyoor ◽  
Anand K. Patil Morth

This case report demonstrates the successful use of intraoral distractor/hygenic rapid expander (HYRAX) for rapid maxillary expansion in anteroposterior direction with an adjunctive use of face mask therapy for anterior orthopedic traction of maxillary complex in a cleft patient with concave profile. The patient was a 13-year-old girl who reported with a chief complaint of backwardly positioned upper jaw and a severely forward positioned lower jaw. Therefore, a treatment was chosen in which acrylic bonded rapid maxillary expansion was done with tooth tissue borne intraoral distractor/HYRAX having a different activation schedule along with Dr Henri Petit facemask to treat maxillary retrognathism. As a result, crossbite got corrected and attained a positive jet with no bone loss in cleft area over a period of 5 months which was followed by fixed mechanotherapy achieving a well settled occlusion in 1 year. After completion of expansion and fixed mechanotherapy, ANB became +1 post-treatment which was −4 pretreatment. The prognathic profile was markedly improved by expansion and taking advantage of the remaining growth potential, thus minimizing the chances of surgery later in life. This provided a viable alternative to orthognathic surgery with good long-term stability.


2013 ◽  
Vol 5 (6) ◽  
pp. 169 ◽  
Author(s):  
Muthukumar Karthi ◽  
GobichettipalayamJagatheeswaran Anbuselvan ◽  
BhandariPawan Kumar

2010 ◽  
Vol 80 (5) ◽  
pp. 799-806 ◽  
Author(s):  
Lucia Cevidanes ◽  
Tiziano Baccetti ◽  
Lorenzo Franchi ◽  
James A. McNamara ◽  
Hugo De Clerck

2011 ◽  
Vol 81 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Nazan Küçükkeleş ◽  
Şirin Nevzatoğlu ◽  
Tamer Koldaş

2017 ◽  
Vol 41 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Fatma Deniz Uzuner ◽  
Duygu Öztürk ◽  
Selin Kale Varlık

Objective: To evaluate the effects of combined rapid maxillary expansion (RME) and face mask (FM) therapy during the mixed dentition period on the dental arch length in patients with skeletal Class III malocclusion. Study Design: We evaluated pre- and post-treatment orthodontic models of 52 patients (25 girls, 27 boys) aged 8–12 years with skeletal Class III malocclusion(ANB<0) accompanied by maxillary transverse deficiency and retrognatism treated by bonded RME-FM therapy for a mean duration of 8 months. Palatal rugae, the cusp tips of permanent first molars, deciduous molars/permanent premolars, deciduous canines and the incisal edges of permanent central incisors were marked on orthodontic models, which were then photocopied. Inter-molar, inter-premolar and inter-canine widths; the arch length; the arch depth and molar and incisor sagittal movements were measured on these photocopies. Statistical comparisons were made using paired t-tests. Results: Inter-molar, inter-premolar and inter-canine widths and the arch length showed significant increases after treatment, while the arch depth showed a significant decrease (p<0.001 for all). Conclusions: With the study limitations, our results suggest that combined RME-FM therapy increases the arch length in the mixed dentition of patients with skeletal Class III malocclusion.


2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Alberto Caprioglio ◽  
Chiara Bergamini ◽  
Lorenzo Franchi ◽  
Nicolò Vercellini ◽  
Piero Antonio Zecca ◽  
...  

2015 ◽  
Vol 85 (6) ◽  
pp. 1070-1079 ◽  
Author(s):  
Murilo Fernando Neuppmann Feres ◽  
Hasnain Raza ◽  
Adel Alhadlaq ◽  
Tarek El-Bialy

ABSTRACT Objective:  To evaluate the effectiveness of rapid maxillary expansion (RME) on the sagittal dental or skeletal parameters of growing children with Class II malocclusion. Materials and Methods:  A systematic review intended to identify relevant literature was conducted. The search was performed on Medline, Embase, Cochrane Library, and Scopus databases. Reference lists of the included articles were also screened for relevant documents. The qualitative assessment was performed according to the Methodological Index for Non-Randomized Studies (MINORS) tool, and the resultant data were grouped and analyzed concerning dental and skeletal sagittal effects of RME. Results:  Of 25 screened studies, seven articles met eligibility criteria and were included. Study samples were observed during mixed dentition stage and characterized as having either Class II dental malocclusion or skeletal discrepancy. None of the included studies was a randomized clinical trial. Included controlled studies presented several inadequacies related to control group or lacked appropriate comparative statistical analysis. Besides being frequently based on deficient methodology, dental and skeletal sagittal effects of RME were either controversial or lacked clinical relevance. Conclusion:  The effect of RME on the sagittal dimension of Class II malocclusions has not been proved yet. Future randomized controlled clinical trials are still needed to definitely address this question.


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