No abstract

No abstract

Canine impaction is a condition wherein the tooth is embedded in the alveolus and is locked in by bone, teeth, or other structures, leading to difficulty in eruption. In this study, we present a case report of a 15-year-old female patient with a straight profile, class I skeletal and dental relationship, over retained deciduous teeth, severe anterior crowding in both the arches, and impacted canine in maxillary arch on both the sides and in mandibular arch on the right side. Extraction of deciduous teeth was done prior to fixed appliance therapy. After leveling and alignment using fixed appliance, surgical exposure of impacted canines was done using open flap surgical technique. Canines were brought into occlusion using conventional orthodontic technique. In mandibular arch, space for lingually placed lateral incisor was created using nickel-titanium (NiTi) open coil spring. Results achieved after decrowding and getting impacted canines into normal occlusion are presented.

No abstract

Introduction: Enamel integrity gets affected by the presence of micro-cracks in it and they can further create problems like stains and the accumulation of plaque on the fractured surfaces. Avoiding such iatrogenic damage to the enamel surface has been a constant challenge even with the use of metal brackets. Creating a fracture line in the base of the bracket leads to the formation of a 'weak zone'. This allows the bracket to collapse in a mesiodistal direction when debonding forces are applied rather than shattering the bracket into tiny multiple pieces. Thus, removal of the bracket having such a 'weak zone' created by making a groove in it before bracket removal arguably leaves the major amount of resin on the tooth and therefore causes less stress on enamel. This study plans to evaluate the expected beneficial effect of 'scoring' the base of the ceramic bracket before bracket removal.Aim: To evaluate and compare the occurrence of micro-cracks in enamel observed before bonding and after debonding of various types of ceramic brackets. Results:The difference between scored monocrystalline ceramic brackets and unscored monocrystalline ceramic brackets of both the AO and Ormco groups is not significant statistically (p = 0.096). There is a significant difference in scoring of ARI and enamel micro-cracks development. The difference of length and width between the groups (A and B) is statistically insignificant. Conclusion:Post debonding, there was no difference significantly in the length or width of enamel micro-cracks between AO monocrystalline ceramic brackets (group A) and Ormco monocrystalline ceramic brackets (group B).

Aim:The present study was aimed to evaluate and compare the frictional characteristics of three newly introduced passive ceramic self-ligating brackets (SLBs), Damon clear, Truklear, and Cabriolet, using coated and uncoated stainless steel (SS) and nickel titanium (NiTi) archwires. Materials and methods: Fifteen maxillary right central incisor brackets of dimension 0.022" × 0.028" slot: five brackets, each of Damon Clear, Cabriolet, and Truklear brackets. Thirty coated and uncoated SS and NiTi archwires were part of the study. Results: The frictional resistance (FR) with three different passive self-ligating ceramic brackets was studied using three different types of SS and NiTi archwires based on their coating. The Damon Clear bracket showed less FR, while the highest FR was observed for the Truklear bracket when using various types of NiTi archwires; the Truklear bracket showed less FR, while the highest FR was observed for the Cabriolet bracket. Conclusion: FR with three passive SLBs when carried out with the Damon Clear bracket showed less FR, while the Truklear bracket showed the highest FR; and when the study was carried out using NiTi archwire, the Truklear bracket showed less FR, while the Cabriolet bracket demonstrated the highest FR.

Any Orthodontic treatment aims to achieve desired tooth movement with a minimum number of undesirable side effects. Since the beginning of specialty, strategies for anchorage control have been a main consideration in accomplishing successful orthodontic treatment. For a long time, Orthodontists have struggled to achieve effective anchorage control. The current paper highlights various aspects of miniscrew usage like ideal requirements, fundamentals of design, indications, concepts & controversies, limitations, safe zones, placement protocols, anatomic considerations and complications.

Measuring the slot dimensions of a bracket is difficult, and inaccuracies in slot dimensions may reflect in rounded corners and lack of parallelism of slot walls. Traditional methods of evaluation in such matters involve use of cross-hairs on nonorthogonal surfaces. Rapid-I Precision Measuring System [14] overcomes the aforementioned problem. Various manufacturers have fulfilled the requirements by marketing orthodontic attachments with the advocated "prescription." However, the pedigree of the product line is defined by the consistency of the needed accuracy in attachment for every tooth. The present study was thus designed to check the ability of six different commercial houses in manufacturing