scholarly journals Class II treatment by palatal miniscrew-system appliance: A case report

2019 ◽  
Vol 90 (2) ◽  
pp. 305-313 ◽  
Author(s):  
Luca Lombardo ◽  
Giulia Occhiuto ◽  
Emanuele Paoletto ◽  
Bortolo Giuliano Maino ◽  
Giuseppe Siciliani
Keyword(s):  
Mixed Dentition ◽  
Class I ◽  
Maxillary Expansion ◽  
Skeletal Class ◽  
Class Ii Treatment ◽  
Noncompliant Patient ◽  
Permanent Molars ◽  
Pendulum Appliance ◽  
Fixed Appliances ◽  
First Permanent Molars

ABSTRACT This case shows that using a rapid palatal expander (RPE) and then a pendulum appliance anchored to palatal miniscrews is an option for improving treatment management in a noncompliant patient requiring maxillary expansion and molar distalization in the late mixed dentition. First, an RPE was used to expand the maxillary arch. Then, a modified pendulum appliance was used to distalize the maxillary first permanent molars. Optimal positioning of two palatal miniscrews enabled both appliances to be supported by skeletal anchorage. Treatment was finished using multibracket fixed appliances, and after 2 years, skeletal Class I as well as dental Class I canine and molar relationships were achieved.

scholarly journals The British Orthodontic Society MOrth Cases Prize 2019

2021 ◽  
pp. 146531252098287
Author(s):  
Adam C Jowett
Keyword(s):  
Class Ii ◽  
Functional Appliance ◽  
First Case ◽  
Permanent Molars ◽  
Fixed Appliances ◽  
Unerupted Teeth ◽  
Removable Appliance ◽  
Division 2 ◽  
Lower Arch ◽  
First Permanent Molars

This paper describes the orthodontic treatment of two cases that were successful in winning the British Orthodontic Society (BOS) Membership in Orthodontics (MOrth) Cases Prize in 2019. The first case describes the management of a 12-year-old girl with a Class II division 2 malocclusion complicated by moderate upper and lower arch crowding, multiple unerupted teeth, restored lower first permanent molars, pseudo-transposition of the lower left lateral incisor and canine, and diminutive upper lateral incisors. Treatment involved a combination of an upper removable appliance followed by upper and lower preadjusted edgewise fixed appliances. Anteroposterior correction and overbite reduction was achieved with triangular Class II elastics with posterior occlusal disengagement. Both upper permanent canines were exposed and aligned, and the diminutive upper incisors built up with resin-based composite. Treatment was completed over a period of 23 months. The second case describes the management of a 13-year-old boy with a Class II division 2 malocclusion complicated by severe upper and lower arch crowding with unerupted UR5, UL4, LR3, rotated LR5, an increased overbite complete to tooth, buccally displaced upper canines and hypoplastic upper first premolars. Treatment involved a first phase of functional appliance therapy, followed by the extraction of UR4, UL4, LL5, LR4 and upper and lower preadjusted edgewise fixed appliances over a 28-month period.

Orthodontic management of compromised first permanent molars with bilateral posterior crossbite, severe crowding and impacted maxillary canines.

2021 ◽  
Vol 20 (4) ◽  
pp. 926-929
Author(s):  
Haytham Jamil Alswairki ◽  
Mohammad Khursheed Alam
Keyword(s):  
Orthodontic Treatment ◽  
Medical Science ◽  
Class Ii ◽  
Case Presentation ◽  
Skeletal Class ◽  
Posterior Crossbite ◽  
Clinical Challenge ◽  
Skeletal Class Ii ◽  
Permanent Molars ◽  
First Permanent Molars

Background: A unique clinical challenge presents when dealing with a compromised first permanent molars with bilateral posterior crossbite, severe crowding and impacted maxillary canines with skeletal class II base malocclusion patient. Case presentation: 14-year-old female patient had dental Class II skeletally, complicated with increase overjet, badly destructed permanent mandibular 1st molars constricted maxillary arch. Extraction of 1st molars followed by expansion have been planned to relieve crowding. Extraction of 1st molars in this time (furcation of 3rd molars start to develop) help in replacement by 2nd molars. In the progression of treatment, Conclusion: A well-balanced and esthetic occlusion by edge wise orthodontic treatment has been archived in this case. Bangladesh Journal of Medical Science Vol.20(4) 2021 p.926-929

scholarly journals Orthopedic cervical headgear in Class II treatment: case report

2003 ◽  
Vol 14 (1) ◽  
pp. 63-66 ◽  
Author(s):  
Carla Enoki ◽  
Mírian Aiko Nakane Matsumoto ◽  
José Tarcísio Lima Ferreira
Keyword(s):  
Case Report ◽  
Growth Pattern ◽  
Class Ii ◽  
Mixed Dentition ◽  
Class I ◽  
Cephalometric Analysis ◽  
Class Ii Malocclusion ◽  
Class Ii Treatment ◽  
Division 1 ◽  
Downward Displacement

Early treatment for Class II malocclusion was undertaken with the objective of correcting skeletal disproportion by altering the growth pattern. A case of Class II, Division 1 malocclusion in the mixed dentition was corrected to Class I molar relationship using orthopedic cervical headgear, with nonextraction edgewise therapy. Cephalometric analysis indicated a reduction in the maxillomandibular discrepancy (ANB) correcting the Class II malocclusion to Class I malocclusion. The treatment showed that this was achieved by downward displacement and inhibition of the forward growth of the maxilla and growth of the mandible. There was no downward rotation of the mandible nor maxillary first molar extrusion. There was improvement in the jaw relationship.

Iatrogenic Root Resorption of Upper First Permanent Molars Associated with Orthodontic Treatment

1987 ◽  
Vol 14 (2) ◽  
pp. 109-113 ◽  
Author(s):  
F. J. Hill
Keyword(s):  
Orthodontic Treatment ◽  
Root Resorption ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Second Molar ◽  
Permanent Molars ◽  
First Permanent Molars

A case of severe resorption of the roots of upper first molars, associated with second molar impaction, is reported. The possible causes of this condition, which occurred as a complication of rapid maxillary expansion and distal movement of the first molars, are discussed.

Localization of first permanent molars in lateral cephalometric and panoramic radiographs from early mixed dentition to early permanent dentition

2001 ◽  
Vol 25 (4) ◽  
pp. 303-306 ◽  
Author(s):  
Hung-Huey Tsai
Keyword(s):  
Permanent Dentition ◽  
Mixed Dentition ◽  
Panoramic Radiographs ◽  
Permanent Molars ◽  
First Permanent Molars

Changes in position and mesiodistal angulations of maxillary and mandibular first permanent molars from early mixed dentition to early permanent dentition were measured on panoramic radiographs and compared with the values measured on lateral cephalometric radiographs. It was found that the maxillary and mandibular first permanent molars were uprighted gradually, drifted mesially and vertically, and that the changes in mesiodistal angulations were clearly on the panoramic radiographs in comparison with the cephalometric radiographs.

scholarly journals Molar Changes with Cervical Headgear Alone or in Combination with Rapid Maxillary Expansion

2008 ◽  
Vol 78 (5) ◽  
pp. 847-851 ◽  
Author(s):  
Marcel Marchiori Farret ◽  
Eduardo Martinelli S. de Lima ◽  
Vanessa Pereira Araújo ◽  
Susana Maria Deon Rizzatto ◽  
Luciane Macedo de Menezes ◽  
...  
Keyword(s):  
Class Ii ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Maxillary Expansion ◽  
Lateral Cephalograms ◽  
Cervical Traction ◽  
Permanent Molars ◽  
Group 2 ◽  
First Permanent Molars ◽  
Group 1

Abstract Objective: To test the hypothesis that there is no difference in the distal movement of the maxillary first permanent molars when cervical headgear is used alone or in combination with rapid maxillary expansion. Materials and Methods: The sample was composed of 36 subjects (aged 9 to 13 years), treated in the Faculty of Dentistry, Pontifícia Universidade Cat;aaolica, Rio Grande do Sul, Brazil. The individuals were in good health and in their pubertal growth period. All had Class II division 1 malocclusion. The patients were divided into two groups: group 1 (22 subjects), Class II, with a normal transverse maxilla treated with cervical traction headgear (HG) 400 g 12 h/d, and group 2 (14 subjects), Class II maxillary transverse deficiency treated with rapid maxillary expansion plus cervical traction headgear (RME + HG). An additional group 3 (17 subjects) served as a control group and included individuals with the same characteristics. All subjects had two lateral cephalograms: initial (T1) and progress (T2), taken 6 months later. Differences between T1 and T2 were compared with the Student's t-test, and three groups were compared by the analysis of variance and Tukey multiple comparison test. Results: Results showed greater distal tipping and greater distal movement of the first permanent molars in group 1 (HG) than in group 2 (RME + HG), P < .05. No extrusion of first permanent molar occurred in either group (P > .05). Conclusion: The hypothesis was rejected. Cervical traction headgear alone produced greater distal movement effects in maxillary first permanent molars when compared with rapid maxillary expansion associated with cervical headgear.

scholarly journals Timely extraction of the first permanent molars severely affected in mixed dentition.

2020 ◽  
Vol 8 (3) ◽  
pp. 263-268
Author(s):  
Javiera Scheu ◽  
◽  
Cecilia Cerda ◽  
Víctor Rojas ◽  
◽  
...  
Keyword(s):  
Mixed Dentition ◽  
Permanent Molars ◽  
First Permanent Molars

scholarly journals Evaluation of Dental Crowding in Mixes Dentition. Comparison between two methods

2019 ◽  
Vol 70 (5) ◽  
pp. 1852-1855
Author(s):  
Dana Festila ◽  
Mariana Pacurar ◽  
Loredana Golovcencu ◽  
Dorin Nenovici ◽  
Alexandru Zalana ◽  
...  
Keyword(s):  
Mixed Dentition ◽  
Permanent Molars ◽  
Dental Crowding ◽  
First Permanent Molars ◽  
Brass Wire

Assessment of dental crowding in mixed dentition from sixty-two study models, maxillary and mandibular, by two different methods was attempted. A single examiner compared the following methods: Nance that used brass wire for measuring the available space between the mesial surfaces of the first permanent molars and L�ndstrom that includes the first permanent molars and used digital calipers. The results showed L�ndstrom method to be more reliable, reproducible and less time consuming.

Effects of Combined Bonded Maxillary Expansion and Face Mask on Dental Arch Length in Patients with Skeletal Class III Malocclusions

2017 ◽  
Vol 41 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Fatma Deniz Uzuner ◽  
Duygu Öztürk ◽  
Selin Kale Varlık
Keyword(s):  
Face Mask ◽  
Mixed Dentition ◽  
Dental Arch ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Maxillary Expansion ◽  
Skeletal Class ◽  
Palatal Rugae ◽  
Dental Arch Length ◽  
Orthodontic Models

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.

A Digital Method to Predict the Mesiodistal Widths of Canines and Premolars in an Egyptian Sample

2011 ◽  
Vol 35 (4) ◽  
pp. 421-428 ◽  
Author(s):  
Iman Ibrahim ◽  
Mona Abdullah Elkateb ◽  
Nadia Aziz Wahba ◽  
Nadia El Harouny
Keyword(s):  
Study Design ◽  
Regression Models ◽  
Prediction Equation ◽  
Mixed Dentition ◽  
Permanent Teeth ◽  
Significant Difference ◽  
Permanent Molars ◽  
Validation Set ◽  
Mixed Dentition Analysis ◽  
First Permanent Molars

Objective: Treatment planning in the mixed dentition is important for proper tooth alignment. A mixed dentition analysis, should accurately predict the mesiodistal widths of unerupted permanent teeth. The aim of the present study was to determine which sum of mesiodistal widths (MDW) of permanent teeth will be the best predictor for MDW of unerupted permanent canines and premolars. Study Design: The study was conducted on 102 Egyptians, 51 males and 51 females, mean age 16.7±0.5 years with fully erupted permanent teeth, and intact proximal surfaces. Dental casts were obtained and scanned to produce digital images that were used on a specially designed software program to measure the MDW of permanent teeth. Casts were divided into training and validation sets, where 9 models of tooth combinations were used to develop a regression equation that describes the relation between them and sum of MDW of erupted maxillary or mandibular canines, first and second premolars. The validation set was used to test the accuracy of the proposed equation. Results: R2 of regression models ranged from 0.3 (for models #2,4,5 and 8) to 0.36 for model #1. The highest regression in model #1 (sum of MDW of lower first permanent molars and upper central incisors) indicated a high linear association between the sum of MDW of tooth combination model #1 and the MDW of maxillary and mandibular permanent canines and premolars. There was no significant difference between the actual and the predicted MDW, when the proposed equation was checked for its accuracy in the entire validation set (p>0.05). Conclusion: The combination of the sums of lower permanent first molars and upper permanent central incisors was the best predictor for the MDW of both maxillary and mandibular permanent canines and premolars.The newly proposed prediction equation may be considered clinically useful for mixed dentition analysis in Egyptian subjects.

Sign in / Sign up

Export Citation Format

Share Document