scholarly journals Assessment of clinical cases using ABO discrepancy index

2018 ◽  
Vol 8 (2) ◽  
pp. 17-21
Author(s):  
Ujjwal Pyakurel ◽  
Kamal Babu Thapaliya ◽  
Sujaya Gupta ◽  
Alka Gupta ◽  
Jyoti Dhakal
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Differential Analysis ◽  
Reliable Index ◽  
Posterior Crossbite ◽  
American Board Of Orthodontics ◽  
The Mean ◽  
Race Ethnicity ◽  
Discrepancy Index

Introduction: The American Board of Orthodontics objectively quantifies the complexity of malocclusion before orthodontic treatment. This study aims to assess the complexity of cases as measured by ABO discrepancy index (DI) in the patients under treatment by the orthodontics residents of Kantipur Dental College (KDC). Additional objectives were to 1) Ascertain DI relative to sex, age and race/ethnicity, and 2) Differential analysis of the components of the DI. Materials & Method: DI was determined for 220 consecutive cases started by orthodontic residents of KDC in a three-year graduate orthodontics program from 2014-2018. The DI was scored and compared with the patient’s sex and age. Result: The DI is not statistically significant to age, sex and race/ ethnicity. The mean DI score (± SD) was 18.65 (±10.521). Differential analysis of the components of the DI showed that the highest scores were for cephalometric measures, followed by overjet, crowding, occlusion, and the lowest scores were for lingual posterior crossbite. Conclusion: The DI was a relatively reliable index for measuring malocclusion severity. It is independent of patient’s age and race/ethnicity but is dependent on sex. Area of possible future improvements includes malocclusion sub-categories (Class II div. 1 and 2), and scores for bony and soft tissue impactions.

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 Perception of facial appearance and profile among Bangladeshi Laypersons

2018 ◽  
Vol 17 (4) ◽  
pp. 638-643
Author(s):  
Mohammad Khursheed Alam ◽  
Shifat A Nowrin
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Medical Science ◽  
Satisfaction Score ◽  
Facial Appearance ◽  
Soft Tissue Profile ◽  
Average Profile ◽  
The Mean ◽  
Existing Data ◽  
Structured Questionnaire

Background: Enlightening facial esthetic is reflecting as one of the main influences in orthodontic treatment during establishing of ideal occlusion.Method: In present study, a determination was made to subsidize to the existing pool of information on the soft-tissue profile and facial awareness. Main aim of the study is to investigate how the Bangladeshi laypersons are aware of their own faces by analyzing the data collected through a structured questionnaire.Result: This study involved total 200 Bangladeshi Individuals age ranged 19 to 23 years old. A validated structured questionnaire was used to assess subjects’ evaluation of their own facial appearance. The mean awareness score for the subjects of Bangladeshi individuals ranged from 1.4 to 2.3 in male and from 1.7 to 1.9 in female for the overall impressions and from 1.3 to 2.1 in male and from 1.2 to 2.3 in female for the facial parts. Satisfaction score for the 9 items out of 24 items differed significantly between Bangladeshi female and male. An average profile of the jaw and lips are desired over more retrusive or protrusive profiles among Bangladeshi laypersons.Conclusion: It can be determined that Bangladeshi laypersons are adept to understand their own faces in the various commands and most of the peoples are worry about their profile in their everyday survives. We must evaluate our existing data to find orthodontic standards that are valid for specific ethnic groups.Bangladesh Journal of Medical Science Vol.17(4) 2018 p.638-643

scholarly journals A comparison of traditional and computer-aided bracket placement methods

2011 ◽  
Vol 81 (5) ◽  
pp. 828-835 ◽  
Author(s):  
Matthew Israel ◽  
Budi Kusnoto ◽  
Carla A. Evans ◽  
Ellen BeGole
Keyword(s):  
Orthodontic Treatment ◽  
Statistical Difference ◽  
Sample Group ◽  
American Board Of Orthodontics ◽  
Indirect Bonding ◽  
Objective Grading System ◽  
The Mean ◽  
The Individual ◽  
Artificial Teeth

Abstract Objective: To test the hypothesis that there is no difference in the accuracy of bracket placement produced by OrthoCAD iQ indirect bonding (IDB) and that of an in-house fabricated IDB system by measuring the quality of intra-arch dental alignment at the end of simulated orthodontic treatment. Materials and Methods: Twenty-eight artificial teeth were arranged to resemble a typical preorthodontic malocclusion. Forty-six sets of models were duplicated from the original malocclusion and randomly divided into two sample groups. Half of the models had their bracket positions selected by OrthoCAD, while the others were completed by a combination of faculty and residents in a university orthodontic department. Indirect bonding trays were fabricated for each sample and the brackets were transferred back to the original malocclusion following typical bonding protocol. The individual teeth were ligated on a .021 × .025-inch stainless steel archwire to simulate their posttreatment positions. The two sample groups were compared using the objective grading system (OGS) originally designed by the American Board of Orthodontics. Results: The mean total OGS score for the OrthoCAD sample group was 39.25 points, while the traditional IDB technique scored 41.00 points. No statistical difference was found between total scores or any of the four components evaluated. Similar ranges of scores were observed, with the OrthoCAD group scoring from 30 to 52 points and the traditional IDB group scoring from 33 to 53 points. Conclusions: The hypothesis is not accepted. OrthoCAD iQ does not currently offer a system that can position orthodontic brackets better or more reliably than traditional indirect bonding techniques.

scholarly journals Soft Tissue Profile Changes in Patients With Class II malocclusion

2021 ◽  
Author(s):  
Jovana Milutinovic ◽  
Zorana Stamenkovic ◽  
Ksenija Zelic ◽  
Nemanja Marinkovic ◽  
Nenad Nedeljkovic
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
T Test ◽  
Upper Lip ◽  
Positive Effects ◽  
Nasolabial Angle ◽  
Soft Tissue Profile ◽  
Division 1 ◽  
Class Ii Division 1

Abstract BackgroundThe objective of this study was to identify the soft tissue profile outcomes of orthodontic treatment of Class II, division 1 malocclusion patients and to determine if these changes are related with different treatment protocol.MethodsThe sample of this study consisted of 50 Caucasian patients [22 males; 28 females], with a mean age of 15.8 years. The sample was divided in two groups (both groups treated with multibracket therapy): first group was non-extraction group [25 patients] treated first with the Herbst appliance, and second group was four premolars extraction group [25 patients] treated with a multibracket appliance. The patients’ pre- and post-treatment profile photographs were used, and the soft tissue landmarks were identified. Afterwards, the angular parameters were determined on each photo. Paired-sample t-test was used for intragroup comparisons. For testing the differences in all parameter values between groups, two-sample t test was used.ResultsThe improvement in the non-extraction group was evident in the decrease of the nasomental angle [P=0.02], the angle representing the projection of the upper lip to the chin [P=0.01], as well as the upper lip angle [P=0.01]. On the other hand, the nasolabial angle increased significantly [P=0.01], as well as the mentolabial angle [P=0.02]. In the extraction group, the nasolabial angle showed a significant increase [P=0.03]. Two soft tissue variables showed significant differences between the groups: the total facial angle or facial convexity including the nose [P=0.04] and the angle presenting the projection of the upper lip to chin [P=0.01].ConclusionsThe patients treated without extractions showed a significant improvement of the convex profile and favorable soft tissue changes in the lower third of the face. The orthodontic treatment of Class II, division 1 malocclusions induce positive effects on the soft tissue facial profile, which depends on different treatment protocols.

scholarly journals The Effects of Functional Appliances on Female Patients with Skeletal Class II Malocclusion 6 Months after Menarche

2016 ◽  
Vol 17 (4) ◽  
pp. 286-293
Author(s):  
Ali AM Jouybari ◽  
Valiallah Arash ◽  
Saeid Tavanafar ◽  
Soraya Khafri ◽  
Zahra Dehghan
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Growth Spurt ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Female Patients ◽  
Skeletal Class Ii ◽  
Soft Tissue Profile ◽  
Functional Appliances ◽  
The Mean

ABSTRACT Aim To investigate the skeletal, dental, and soft tissue changes in girls with class II division 1 malocclusion after growth spurt peak under the effect of activator appliance. Materials and methods In this clinical trial study, 15 female patients, with skeletal class II and mandibular growth deficiency and at least 5 mm overjet, were randomly selected 6 months after their menarche. The mean of their ages at the beginning was 12.33 ± 0.81 years, and in the end it was 13.73 ± 0.79 years; the mean duration of treatment was 12.2 ± 3.18 months. Lateral, cephalometric radiographs were taken from all the patients before and after the treatment. Data were analyzed with Statistical Package for the Social Sciences (SPSS) 20 using paired t-test. Results On an average, the ANB angle, the angle of the upper incisors with the S-N, facial convexity, and overjet decreased by 2.6° ± 0.9, 5.4° ± 0.8, 3.8° ± 3.4, and 5.6 ± 1.8 mm respectively. The SNB angle, the angle of the lower incisors with the N-B, the labiomental angle, the total length of the mandible, the lower anterior facial height, the lower lip distance, the first molar of the mandible, and the soft tissue pogonion to the vertical line from the S point increased by 2.8° ± 1.8, 3.4° ± 3, 14.7 ± 15, 3.7 ± 2.6, 2.1 ± 1.6, 6.3 ± 2.5, 4.4 ± 2.4, and 6 ± 3.3 mm respectively. All these figures were statistically significant (p = 0.000). Conclusion The functional appliance improved the dental–skeletal relations and the soft tissue profile of patients after growth spurt peak of puberty in a group of Iranian girls, whereas dental changes were more than skeletal ones. Clinical significance Functional appliances can be used for correction of skeletal class II malocclusion 6 months after menarche in girls. How to cite this article Jouybari AAM, Arash V, Tavanafar S, Khafri S, Dehghan Z. The Effects of Functional Appliances on Female Patients with Skeletal Class II Malocclusion 6 Months after Menarche. J Contemp Dent Pract 2016;17(4):286-293.

scholarly journals The Application of Pendulum as a Space Regainer in Orthodontic Treatment

2021 ◽  
Vol 15 (1) ◽  
pp. 501-504
Author(s):  
Himawan Halim
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Fixed Appliance ◽  
Posterior Crossbite ◽  
Poor Patient Compliance ◽  
Patient Cooperation ◽  
Poor Treatment ◽  
Long Time ◽  
Pendulum Appliance ◽  
Maxillary Arch

Background: The process of distalization in orthodontic treatment is often very difficult. The most common method is the use of cervical headgear. However, due to poor patient compliance, it leads to poor treatment outcomes. Treatment alternatives that require minimal compliance include Jones jig, magnets, and pendulum. Objective: This study aimed to perform distalization of a maxillary molars on a bilateral Class II molar relationship patient with a crowded maxillary arch. Case Report: A 10-year-old female with a Class II molar relationship, bilateral posterior crossbite, and nonerupted upper canines was treated with a rapid palatal expander (RPE), pendulum appliance, and fixed appliance. The crowding in the maxillary arch and spacing in the mandibular arch were eliminated, and transverse discrepancies were corrected. Conclusion: Pendulum appliance is very effective in creating spaces for the eruption of canines and ectopic premolars. Pendulum appliances have been introduced for a long time and have proven successful for molar distalization and space regainer and require minimal patient cooperation. Like other distalization appliances, distal tipping of the molars and mesial movement of the premolars could be observed.

Evaluation of prognostic factors affecting root coverage in patients before planned orthodontic treatment

2018 ◽  
Vol 14 (4) ◽  
pp. 257-269
Author(s):  
Bartłomiej Górski ◽  
Renata Górska
Keyword(s):  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Soft Tissue Augmentation ◽  
Tissue Type ◽  
Type I ◽  
Root Coverage ◽  
Gingival Thickness ◽  
Tissue Augmentation ◽  
The Mean ◽  
Coverage Increase

During orthodontic dental arch expansion, especially in cases of teeth with gingival recessions, further loss of soft tissues and progression of recession might be observed. <b>Aim.</b> The aim of this study was to evaluate determinants of root coverage, increase in the width of keratinised tissue and gingival thickness after soft tissue augmentation procedures in patients before planned orthodontic treatment. <b>Material and methods.</b> 16 patients with the mean age of 28.18 (±6.58) years with 122 type I and II gingival recessions were enrolled in the study. Total, 32 soft tissue augmentation procedures with a coronally advanced flap (CAF) and tunnel technique (TUN) together with a connective tissue graft (CTG) were performed. The clinical and aesthetic parameters were assessed at baseline and 6 months postoperatively. <b>Results.</b> CAF was performed more often in upper teeth and type I gingival recession, in contrast to TUN. The mean percentage root coverage on CAF sides was 98.48%, while on TUN sides it was 81.71%. Complete root coverage was achieved in 87.3% and 61.2% of gingival recessions, respectively. A multivariate linear regression showed that the amount of root coverage was significantly affected by baseline recession height (GR), recession type, type and position of a tooth and surgical modality. The increase in the width of keratinised tissue (WKT) was related to the baseline width of keratinised tissue, type and position of a tooth, whereas the increase in gingival thickness (GT) was associated with baseline gingival thickness, tooth position and gender. Best aesthetics was observed on the TUN sides. <b>Conclusions.</b> Baseline characteristics of a surgical site (GR, WKT, GT), recession type, position and type of a tooth, and treatment modality may be helpful in the prognosis of recession coverage, increase in the width of keratinised tissue and gingival thickness in orthodontic patients.

A Thousand Consecutive Treated Orthodontic Cases—A Survey

1974 ◽  
Vol 1 (2) ◽  
pp. 45-54 ◽  
Author(s):  
J. S. Rose
Keyword(s):  
Active Treatment ◽  
Treatment Time ◽  
Dental Health ◽  
Class Ii ◽  
Class Iii ◽  
Female Ratio ◽  
Posterior Crossbite ◽  
Complete Treatment ◽  
The Mean ◽  
Lower Arch

An analysis of 1000 consecutive treated cases from a private orthodontic practice was made. Inter alia the results show: the male to female ratio was 4: 6; the mean age of first attendance was 10·7 years and the mean age at the start of active treatment was 11·6 years. 49 per cent of the cases were Angle Class I; 39 per cent Class II/1; 8 per cent Class II/2 and 4 per cent Class III. Over half the patients had an increased overbite. 21 per cent had an anterior crossbite and 11 per cent showed a posterior crossbite. Approximately 75 per cent of the cases showed crowding of the labial segments. There was crowding in 26 per cent of the upper buccal segments and in 49 per cent of the lower ones. 93 per cent of the patients received active treatment for the upper arch but only 4 per cent had appliances in the lower arch. A quarter of the cases were treated without upper extractions; in the lower arch the figure was 58 per cent. 94.1 per cent of the patients were treated with removable appliances requiring, on average, 1·5 appliances per case to complete treatment. 30 per cent of the cases received no retention. 54 per cent wore a retainer for less than 6 months. 88 per cent of the patients completed treatment and co-operation was satisfactory in 87 per cent. The mean treatment period for each patient was 13·1 months involving an average of 11·7 visits. The average active treatment time for each patients was 95 minutes. 74 per cent of the completed cases had a satisfactory result. The discussion supports the case for relating the type of orthodontic treatment to the total dental need of the patient. This requires more knowledge of what is meant by “dental health”. A plea is made that orthodontists should not become rigid in their approach to treatment.

Dentofacial Changes in Untreated Class II Division 1 Subjects

1987 ◽  
Vol 14 (4) ◽  
pp. 225-234 ◽  
Author(s):  
Nigel E. Carter
Keyword(s):  
Orthodontic Treatment ◽  
Class Ii ◽  
Linear Measurements ◽  
Male And Female ◽  
Mean Values ◽  
Mandibular Growth ◽  
Division 1 ◽  
The Mean ◽  
Mandibular Retrognathism ◽  
Class Ii Division 1

Basic descriptive cephalometric data are presented for 30 individuals with untreated Class II Division 1 malocclusions, 15 males and 15 females. Two radiographs of each subject were examined, the mean age for the first being 12 years one month, and for the second 17 years five months, thus spanning the period during which orthodontic treatment is usually carried out. Mean values for 38 bony and dentoalveolar parameters were calculated, and the male and female groups were compared. There was a tendency on average to a mild skeletal II pattern, with mild mandibular retrognathism. The mean increase in many of the linear measurements in the males was up to three times that seen in the females, and the females had a more downwards and backwards pattern of mandibular growth rotation than the males.

Sign in / Sign up

Export Citation Format

Share Document