Evaluation of the load system produced by a single intrusion bend in a maxillary lateral incisor bracket with different alloys.

Objectives: To evaluate if a 0.5-mm vertical bend applied on an incisor bracket produces movements in other planes and if different wires influence these effects.

Materials And Methods: An acrylic model of a treated patient with brackets passively bonded was attached to an Orthodontic Force Tester, and a load cell was attached to the left lateral incisor.

Molecular diagnostic dilemmas in Rett syndrome.

Rett syndrome (OMIM 312750) is a progressive, X-linked neurodevelopmental disorder caused by mutations in the MECP2 gene located on chromosome Xq28. The disorder is characterized by a period of normal development during the first 6-18months of life, followed by gradual loss of skills already gained, such as speech and purposeful movement of the hands. The majority of cases are sporadic and represent "de novo" mutations.

Composite pontics for orthodontic patients with extraction spaces.

Esthetic orthodontic appliances continue to appeal to more patients, which results in objections to extraction spaces that remain for several months during orthodontic therapy. This has led orthodontists to design temporary pontics that fill extraction sites and that can be reduced as the spaces close. This report describes a simple, efficient, and expeditious technique for making such pontics.

Treatment of a mutilated dentition with the mandibular protraction appliance: a patient report.

A 35-year-old female presented missing her maxillary right first premolar, left central and lateral incisors, and left second premolar and mandibular left first molar. The referring dentist had requested that only the maxillary left first molar be intruded to facilitate the prosthodontic replacement of the missing mandibular left first molar. After clinical examination and consultation with her dentist, it was decided to protract the mandibular left second and third molars, intrude the maxillary left first molar, replace the missing incisors with a temporary partial denture, and restore the missing maxillary right first premolar with an implant.

The use of parallel imaging for MRI assessment of knees in children and adolescents.

Background: Parallel imaging provides faster scanning at the cost of reduced signal-to-noise ratio (SNR) and increased artifacts.

Objective: To compare the diagnostic performance of two parallel MRI protocols (PPs) for assessment of pathologic knees using an 8-channel knee coil (reference standard, conventional protocol [CP]) and to characterize the SNR losses associated with parallel imaging.

Materials And Methods: Two radiologists blindly interpreted 1.

Creating certainty and confidence with indirect bonding.

Indirect bonding offers a superior method of adhering brackets to teeth, but few orthodontists use it. The neglect of this procedure has many origins, including expense, lack of expertise, and inconsistent results. This paper presents an indirect-bonding method that can be used to expedite bonding appointments and make them more pleasant for patients and clinicians alike.

Digital versus conventional templating techniques in preoperative planning for total hip arthroplasty.

Background: The purpose of our investigation was to compare a digital templating system to conventional templating techniques when preoperatively planning for total hip arthroplasty.

Methods: We included 18 consecutive patients with primary osteoarthritis undergoing uncemented total hip arthroplasty in our study. At separate sittings, we independently conducted preoperative templating.

Proinflammatory cytokine-receptor interaction model improves the predictability of cerebral white matter injury in preterm infants.

Proinflammatory cytokines have been variably linked to development of cerebral white matter injury (WMI) in preterm infants. Because soluble receptors tightly control cytokine bioactivity, we modeled cytokine-receptor interaction as a predictor of WMI. Plasma from 100 preterm infants was assayed for cytokines (tumor necrosis factor alpha, interleukin (IL-1beta, IL-6) and their soluble receptors (sTNF-RI), sTNF-RII, sIL-1RA, and sIL-6R).

Early tooth extraction in the treatment of anterior open bite in hyperdivergent patients.

Aim: To describe the treatment of a 7-year-old patient with a hyperdivergent (dolichofacial) pattern, Class II Division 1 malocclusion, and anterior open bite.

Methods: Treatment was performed in 2 stages following the principles of the Ricketts bioprogressive technique and comprised early extraction of the maxillary permanent first molars and primary second molars.

Results: The treatment plan established for correction of the initial malocclusion reached the orthodontic goals, providing optimal esthetics and normal function.

Closing mandibular first molar spaces in adults.

Adult orthodontic patients with missing mandibular first molars and large spaces to close have challenged orthodontists for many decades. Most of the techniques previously used to close such spaces have rendered equivocal results that typically result in compromised treatment. The mandibular protraction appliance offers orthodontic clinicians a method to close those spaces by bringing the mandibular second molars forward without retracting the mandibular incisors.

A rationale for expansion.

Over the past 100 years, orthodontists have vacillated between extremes of nonextraction and extraction therapies. Injudicious selection of therapies despite facial dimensions has probably contributed to the major clinical disappointments within each style of therapy. The belief that expansion distal to the canines would not stabilize after the cessation of active treatment has contributed to the reluctance to use such therapy.

Optimizing dosimetry with high-dose intracoronary gamma radiation (21 Gy) for patients with diffuse in-stent restenosis.

Background: The efficacy of intracoronary gamma radiation (IRT-gamma) in reducing recurrent in-stent restenosis (ISR) is well established using doses of 14-18 Gy. We sought to examine whether an escalation in dose to 21 Gy is safe and confers additional benefit in reducing repeat revascularization and major adverse cardiac events (MACE) in patients with diffuse ISR.

Methods: Forty-seven patients with diffuse ISR (lesion length 20-80 mm) in native coronary arteries (n=25) and saphenous vein grafts (n=22) underwent percutaneous transluminal coronary angioplasty and/or additional stents followed by IRT-gamma using the Checkmate system (Cordis) with a dose of 21 Gy.

Saltcedar control and water salvage on the Pecos river, Texas, 1999-2003.

A large scale ecosystem restoration program was initiated in 1997 on the Pecos River in Western Texas. Saltcedar (Tamarix spp.), a non-native invasive tree, had created a near monoculture along the banks of the river by replacing most native vegetation.

Integrative orthodontics with the ribbon arch.

The ribbon arch had great popularity and utility early in the 20th century, but lost its appeal as edgewise techniques developed. Some clinicians have made attempts to revive the procedure, but they have relied upon costly changes in bracket and band inventories and have not yet received extensive endorsement. A newer approach that relies only upon the use of newly developed titanium and stainless steel ribbon archwires offers orthodontists a simplified and inexpensive method for assimilating this helpful method.