Corrosion Behavior of Nickel-Titanium Arch Wires Following the Use of Different Mouthwashes: An Study.

Objective: The aim of this double-blind study was to compare the extent of corrosion on the surface of nickel-titanium (NiTi) wires in various mouthwashes.

Methods: A total of 80 patients who received orthodontic treatment with as-received 0.016x0.

Evaluation of the Impact of Interdisciplinary Case-Based Courses in Dental Education on Smile Evaluation Skills of Undergraduate Students.

Objective: The purpose of the present study was to compare the perception of smile aesthetic between 3rd-, 4th-, and 5th-year dental students to identify if interdisciplinary courses have an impact on the attitudes of students.

Methods: A total of 118 dental students (3rd-, 4th-, and 5th-year; N=43, 43, and 32, respectively) assessed the aesthetic attractiveness of four smile photographs (normal, high, low, and asymmetric smile lines). To enhance the crown, length-to-width ratio and color Digital Smile Design (DSD) were applied to all photographs, and then scoring was performed by using the Visual Analog Scale (VAS).

Impact of Discipline-Based vs. Interdisciplinary Orthodontic Courses on Dental Students' Performance.

The aim of this longitudinal study was to assess the effect on dental students' grades of participating in a third-year course taught in orthodontics alone versus an interdisciplinary course taught with orthodontics and pediatric dentistry combined. In the five-year dental curriculum at Yeditepe University in Istabul, Turkey, the third-year orthodontic course was taught as a single discipline until 2010, when the course was redesigned as an interdisciplinary course in orthodontics and pediatric dentistry. This retrospective study analyzed all 540 students' grades in orthodontic courses in the third, fourth, and fifth years from 2003-04 to 2014-15 to determine the impact of the third-year course design on students' performance.

Aesthetic Assessment of Infants With Different Cleft Types Before, During, and After Orthopedic Treatment.

Objective: The aim of the present study is to compare the aesthetic assessments of infants with different types of cleft before (T1), during (T2), and after (T3) orthopedic therapy (OT) by orthodontists, dentists, and laypersons.

Methods: Photographs of 3 patients (incomplete lip [C1], complete unilateral [C2], and complete bilateral cleft [C3]) at T1 (C1, C2, C3 chronologic age: 5, 2, 2 days), T2 (C1, C2, C3 chronologic age: 32, 28, 35 days; using forehead anchoraged nasal stent or conventional nasoalveolar therapy plates), and T3 (C1, C2, C3 chronologic age: 80, 91, 105 days) were collected from the archive. The nasolabial region at stage T3 were masked and also added to the evaluation form (T4).

Comparison of Different Energy Levels of Er:YAG Laser Regarding Intrapulpal Temperature Change During Safe Ceramic Bracket Removal.

Objective: This study was done to compare the intrapulpal temperature change generated by different energy levels of Er:YAG laser used during debonding of ceramic brackets and find the most suitable level for clinical use.

Material And Methods: Eighty polycrystalline alumina brackets were bonded on bovine incisor teeth, which were randomly divided into 4 groups of 20. One group was assigned as control.

The Effect of Awareness of American Board of Orthodontics Criteria on Treatment Outcomes in a Postgraduate Dental Clinic.

The aims of this study were to evaluate the posttreatment outcomes in a postgraduate orthodontic clinic following a course on American Board of Orthodontics Cast and Radiograph Evaluation (ABO-CRE); to compare the outcomes of postgraduate students who took the course before and after finishing treatment of their cases; and to assess if the need for orthodontic treatment as determined by the Index of Orthodontic Treatment Need (IOTN) at the beginning of treatment affected students' final scores. A course on ABO-CRE was given to second- (group A), third- (group B), and fourth- (group C) year postgraduate students at Yeditepe University, Istanbul, Turkey, in 2012. Pre- and posttreatment plaster models of 253 cases (group A) were treated by students in 2011-12.

Which Orthodontic Wire and Working Sequence Should be Preferred for Alignment Phase? A Review.

The key to a successful orthodontic therapy depends not only on manual skills and knowledge about treatment steps, but also on knowledge and choice of materials used. One of the major components of fixed orthodontic therapy is the choice of wires. Orthodontic wires are defined as devices consisting of a wire conforming to the alveolar or dental arch, used as an anchorage in correcting irregularities in the position of the teeth.

Pulpal thermal changes following Er-YAG laser debonding of ceramic brackets.

Lasers are effective in debonding ceramic brackets. Unfortunately, while reducing the adhesive bond strength, lasers are also reported to increase pulpal temperature. The aim of this study was to evaluate the shear bond strengths and temperature increase levels after debonding ceramic brackets using an Er-YAG laser with or without water-cooling.

Metal ion release from silver soldering and laser welding caused by different types of mouthwash.

Objective: To compare metal ion release from samples welded with silver soldering and laser welding when immersed into mouthwashes with different ingredients.

Materials And Methods: A total of 72 samples were prepared: 36 laser welded and 36 silver soldered. Four samples were chosen from each subgroup to study the morphologic changes on their surfaces via scanning electron microscopy (SEM).

In vitro effects of two topical varnish materials and Er:YAG laser irradiation on enamel demineralization around orthodontic brackets.

The aim of this in vitro was to evaluate the effects of tricalcium phosphate (TCP) and amorphous calcium phosphate (ACP) containing varnish materials and Er:YAG laser irradiation on enamel demineralization around orthodontic brackets. Forty extracted human premolar teeth were randomly divided into four treatment groups (i.e.

Effects of a newly designed apparatus on orthodontic skeletal anchorage.

Objective: An appliance was designed to increase the cortical bone surface contact area of miniscrew implants (MSIs). The purpose of this in vitro study was to evaluate the effects of this appliance on the anchorage force resistance and the stability of orthodontic MSIs.

Materials And Methods: A total of 48 MSIs were placed into bone specimens prepared from the ilium of bovines.

Effects of fixed functional therapy on tongue and hyoid positions and posterior airway.

Objective: To evaluate how therapy with a fixed functional appliance affects airway dimensions, dentoalveolar changes, and tongue and hyoid positions.

Materials And Methods: A retrospective study was carried out on 46 pre- and posttreatment lateral cephalometric radiographs of 23 post-peak Class II patients (12 girls, 11 boys) treated with a Forsus Fatigue Resistant Device (FRD) appliance. The radiographies were taken at the start and at the end of Forsus FRD appliance therapy when a Class I or overcorrected Class I canine and molar relationship was achieved.

Prevention of demineralization around orthodontic brackets using two different fluoride varnishes.

Objective: This in-vitro study was done to evaluate the effects of two different seal materials, Duraflor™ and Enamel Pro(®) Varnish, on enamel demineralization adjacent to orthodontic fixed appliances.

Methods: Seventy-two extracted solid premolars were allocated to three groups as one control and two study groups after brackets were placed and bonded with Transbond™ XT. The control group received no topical fluoride application after bonding, whereas in the study groups two fluoride varnishes, Enamel Pro(®) Varnish and Duraflor™ were applied on the teeth adjacent to brackets.

A cephalometric comparative study of class II correction with Sabbagh Universal Spring (SUS(2)) and Forsus FRD appliances.

Objective: The purpose of this clinical prospective study was to compare the dentofacial changes produced by the Sabbagh Universal Spring (SUS(2)) and Forsus FRD appliances in late adolescent patients with Class II malocclusion, and quantify them in comparison with an untreated group.

Method: The study was carried out on 59 patients with skeletal and dental Class II malocclusion due to retrognatic mandible. Among these, 20 were treated with SUS(2), 20 were treated with FRD, and no treatment was done to 19 subjects as the control group.

Evaluation of the Immediate Dentofacial Changes in Late Adolescent Patients Treated with the Forsus(™) FRD.

Objectives: The purpose of this study was to evaluate the short-term dentoalveolar and soft tissue changes in late adolescent patients treated with the Forsus™ FRD.

Methods: A prospective study was carried out on 54 lateral cephalometric radiograms that were taken before placement and after removal of the appliance in the treatment group (15 subjects) and at the beginning and six months after in the control group (12 subjects). The patient selection criteria were as follows: skeletal and dental Class II malocclusion due to retrognatic mandible, normal or low-angle growth pattern, post-peak growth period, no extracted or congenitally missing permanent teeth, and minimum crowding in the lower dental arch.

FEM analysis of a new miniplate: stress distribution on the plate, screws and the bone.

Objectives: Non-homogeneous force distribution along the miniplates and the screws is an unsolved question for skeletal anchorage in orthodontics. To overcome this issue, a miniplate structure was designed featuring spikes placed on the surface facing the cortical bone. The aim of this study was to examine and compare the force distribution of the newly designed plate-screw systems with the conventional one.

Debonding of ceramic brackets by a new scanning laser method.

Introduction: The purpose of this in-vitro study was to develop a new method to debond ceramic brackets by scanning with an Er:YAG laser.

Methods: Sixty bovine mandibular incisors were randomly divided into 2 groups of 30. Polycrystalline ceramic brackets were placed on their labial surfaces by using the orthodontic composite adhesive Transbond XT (3M Unitek, Monrovia, Calif) and light cured for a total of 40 seconds.

Effects of different application durations of ER:YAG laser on intrapulpal temperature change during debonding.

This study was done to determine the amount of lasing time required to remove ceramic brackets safely without causing intrapulpal damage by using Er:YAG laser with the scanning method. Part 1: 80 bovine mandibular incisors with ceramic brackets were randomly assigned into four groups of 20 as one control and three study groups. In the study groups, brackets were debonded after lasing for 3, 6, and 9 s, whereas debonding was performed without lasing in the control group.

Perception of pain and discomfort during tooth separation.

Objectives: To evaluate patients' perceptions of pain and discomfort during tooth separation and to compare the effectiveness of brass wire and elastomeric separators.

Methods: The participants were 87 adults with a mean age of 22.1 +/- 1.

Orthodontic treatment of a patient with traumatic loss of maxillary incisors.

Obtaining and retaining a good treatment result for traumatically lost incisors can be difficult for the clinician. In this case report, the management of a patient with the chief complaint of missing maxillary central incisors due to trauma is presented. The patient had a constricted maxilla with a bilateral posterior crossbite and an end-to-end relationship anteriorly.

Interdisciplinary management of a patient with skeletal anteroposterior discrepancy, impacted canine, and missing teeth.

For patients with complex dentofacial problems, orthodontic treatment is often not enough to obtain optimal esthetic and functional results. This case report demonstrates the treatment of a patient with skeletal anteroposterior discrepancy through an interdisciplinary approach and emphasizes the importance of collaboration with other dental disciplines to achieve the desired esthetic results.

Treatment of a Class II malocclusion with bilaterally impacted canines: a case report.

Aim: This article describes the treatment of a patient with a Class II malocclusion and bilaterally impacted canines using a Jasper jumper appliance. An unfavorable side effect of the appliance became a benefit as part of the treatment.

Methods: Treatment objectives were to erupt the impacted canines, expand the decreased intermolar width, and obtain a well-balanced profile, with a Class I occlusion.

Orthodontic treatment protocol of Ehlers-Danlos syndrome type VI.

Ehlers-Danlos syndrome (EDS) type VI is an autosomal recessive disorder of the connective tissue characterized by joint hypermobility, muscle hypotonia, scoliosis, and ocular fragility. In this case report, an EDS type VI patient with a skeletal and dental Class III malocclusion is presented and the clinical approach to his orthodontic problem is emphasized. A 17-year-old male patient presenting some major and minor symptoms of the syndrome was referred to our orthodontic department for diagnosis and treatment.

A comparative study of cephalometric and arch width characteristics of Class II division 1 and division 2 malocclusions.

The aim of this compound cephalometric and arch-width study was to determine any dental and/or skeletal differences between subjects with Class II division 1 and Class II division 2 malocclusions. The dento-skeletal characteristics of Class II subjects were evaluated using lateral cephalometric radiographs and dental casts of 90 untreated patients. The sample included 46 Class II division 1 patients (19 girls and 27 boys) with a mean age of 15.