The verisimilitude of damon brackets versus damon archwires– The real hero

: The Damon passive self-ligating system introduced broad archwires and a passive clip with posterior expansion and with minimal tipping of the teeth. To evaluate and compare the effectiveness of Damon brackets and Damon arch wires in maxillary arch dimensional changes with that of conventional brackets and conventional archwires. A total of 20 patients were selected for the study and randomly divided into 4 Groups with 5 patients in each group. Records (Study models) were taken before starting the treatment (T0) and at the end of leveling and alignment (T1) for all the 20 subjects. Pre-treatment (T0) and at the end of leveling and alignment (T1) study models were assessed for inter canine width, inter first premolar width and inter first molar width. There was statistically significant increase in maxillary arch width in Damon system and conventional bracket with Damon archwires when compared to conventional bracket system and Damon brackets with conventional archwires. The use of conventional or self-ligating brackets does not seem to be an important predictor of change in maxillary arch width in non-extraction patients. The amount of increase in arch width was due to Damon archwires and not because of Damon brackets.

Comparison of the rate of maxillary canine retraction with or without modified corticotomy facilitated orthodontic treatment

Objectives: The aim of the study was to evaluate and compare the rate of maxillary canine retraction in cases with modified corticotomy versus without modified corticotomy. Clinical interventional study. Split mouth design was used. Materials and Methods: A sample size of ten patients and 20 sites were selected within the age group of 18–35 years following all criteria of the study. Before orthodontic leveling and alignment, upper first premolar extraction was carried out under local anesthesia. Pre-treatment OPG and IOPA were taken in relation to the maxillary canine and maxillary second premolar teeth. One extraction side was considered as the experimental site and contralateral side as control. Leveling and alignment were started with wire sequence. After modified corticotomy procedure, the canine retraction was started with 8 mm NiTi closed coil spring. The amount of tooth movement was recorded with the help of a Digital Vernier Caliper at an interval of 1 month till the completion of canine retraction. Results: Paired t-test showed higher mean velocity of tooth movement in modified corticotomy side (1.07 ± 0.25) as compared to the conventional side (0.91 ± 0.24), (P < 0.001). Conclusion: The modified corticotomy technique serves as an effective treatment modality for adults seeking orthodontic treatment with increased rate of orthodontic canine retraction.

THREE DIMENSIONAL ASSESSMENT OF MOVEMENT OF SKELETALLY ANCHORED MOLARS DURING LEVELING AND ALIGNMENT STAGE OF FIXED ORTHODONTIC MECHANOTHERAPY

Introduction- Alignment and leveling has been dene as “The tooth movement needed to achieve passive engagement of a plain arch wire of 0.019x0.025 dimension having standard arch form in to a correctly placed 0.022˝ bracket system.''Anchorage is an important consideration in the alignment and leveling stage of orthodontic treatment. Loss of anchorage during this stage is to be considered in the three planes of space. Aims and objectives - Three dimensional assessment of the position of skeletally anchored rst molar teeth and three dimensional assessment of the position of rst molar teeth anchored with conventional trans palatal arch using lateral cephalogram and study models, at the end of leveling and alignment stage of xed orthodontic mechanotherapy and its comparison with pretreatment position.Utimately to nd out by comparing the above measurements whether skeletally anchored molars offer more anchorage than molars anchored with conventional transpalatal arches. Materials and methods- These 30 patients were asked to participate in this study out of which 20 consented. All pre-treatment(T ) patient records were made: o study models, standard lateral cephalograms (Satlec – Pano D), extra oral and intra oral photograph. Miniscrew anchored transpalatalarch (MATPA) was placed in 12 patients(group I) and conventional transpalatal arch in 8 patients (group II). 0.022” stainless steel M.B.T. prescription brackets and tubes ( Nu- Edge, TP Orthodontics) were used and treatment mechanics described by Mc. Laughin, Bennet and Trevisi were followed in all patients. Result - This study attempted a 3-dimensional assessment of molar movement during alignment and leveling stage. The mini screw anchored trans palatal arch (MATPA) was found to offered better anchorage than the conventional trans palatal arch (TPA) .In the sagittal plane angular and linear measurements were found to have signicantly changed after leveling and alignment for conventional TPA group whereas no signicant difference were found in MATPA group. In the vertical plane, the perpendicular distance of the mesiobuccal cusp tip to the platal plane was found to be signicantly changed in conventional TPA group whereas no signicant change was measured in MATPA group. ConclusionMiniscrew anchored trans palatal arch offered better anchorage control of maxillary rst molar teeth in sagittal, vertical and transverse plane, during the leveling & alignment stage of xed orthodontic mechanotherapy, when compared with conventional trans palatal arch.

Nonsurgical Treatment of Class III Malocclusion with Both Anterior and Posterior Crossbites Combined with Impacted and Congenitally Missed Teeth

Class III malocclusions present a great challenge for many orthodontists, especially if malocclusions are found in adult patients and alongside other dental problems. This case report shows an adult patient with a skeletal class III anterior crossbite, a unilateral posterior crossbite on the right side, a congenital absence of both lateral incisors and retained deciduous teeth, and shift in the lower midline. The upper retained deciduous teeth and lower premolars were extracted. Leveling and alignment were initiated. Build-up composite resin placed on the first molars allowed for bite opening. The crossbites were corrected by using sequentially larger archwires combined with class III elastics until both the anterior and posterior crossbites were corrected. The impacted upper right canine was exposed using the closed eruption technique and leveled into the position of the upper lateral incisor. Miniscrews were utilized to close the residual spaces. Both canines were reshaped to simulate the upper lateral incisors. At the end of the treatment, good esthetic and functional results were obtained. In conclusion, orthodontic camouflage can be a viable option for treating patients with multiple skeletal and dental problems.

Solutions for atypical problems in the incisors area: a transdisciplinary challenge

ABSTRACT Introduction: A significant increase in the number of adults in search of orthodontic treatment has raised a new challenge for orthodontists: the need to interact with other specialties to achieve excellent results, particularly when dealing with smile aesthetics and facial balance. Several factors should be considered to respond to their demand: adequate tooth leveling and alignment, individual tooth proportions between adjacent teeth and their contralateral teeth, shape and natural appearance of each tooth and gingival architecture, which should all be in agreement with facial harmony. Maxillary or mandibular incisors congenitally missing or lost due to caries or trauma and tooth-size discrepancies (Bolton) are some of the important aesthetic challenges for an integrated orthodontic treatment. Objectives: This study describes cases that illustrate the clinical challenges of treating the anterior area, as well as the multidisciplinary strategies required for their resolution. Conclusion: The increasingly frequent multidisciplinary orthodontic treatments of complex cases seem to effectively maximize aesthetic and functional results using a combination of procedures conducted by specialists in related areas, such as Surgery, Prosthetics, Implantology, Restorative Dentistry and Periodontics.