A simple low-cost Y-branch plastic optical fiber (POF) coupler which can be assembled easily by the end users has been developed. The acrylic-based Y-Branch POF coupler consists of input POF fiber, a middle high index contrast waveguide taper and output POF fibers. The optical device is based on a 1 × 2 Y-branch coupler design with a middle high index contrast waveguide taper. Nonsequential ray...

AIM The aim of this study is to evaluate the influence of final canal taper on the sealing ability of Thermafil by using microcomputed tomography (micro-CT). MATERIALS AND METHODS Fifty-four single-rooted teeth were instrumented to apical size 40 taper 4, 6 and 8%. Teeth were divided into three groups. All teeth were filled with Thermafil (Dentsply,Tulsa Dental Products). Using micro-CT, root...

OBJECTIVES The aim of this study was to compare the dimensional standard of several nickel-titanium (Ni-Ti) rotary files and verify the size conformity. MATERIALS AND METHODS ProFile (Dentsply Maillefer), RaCe (FKG Dentaire), and TF file (SybronEndo) #25 with a 0.04 and 0.06 taper were investigated, with 10 in each group for a total of 60 files. Digital images of Ni-Ti files were captured und...

Long-term (mean, 8 years) users of benzodiazepines (BZs) were administered a small battery of cognitive tests on three occasions (before BZ taper, and 5 and 12 weeks post taper) as part of their BZ discontinuation program. Ninety-six patients had 5-week and 77 patients had 12-week data. For taper successes, BZ-free status was confirmed by weekly BZ plasma level determinations. Age and education...

The last decade has been witness to phenomenal growth in endodontic technology. The introduction of these new technologies has resulted in endodontics becoming easier, faster and most importantly, better. Principal among these is Nickel Titanium (NiTi) rotary instrumentation that results in consistent, predictable, and reproducible shaping. The purpose of this article is to review the design fe...

BACKGROUND Methadone is often prescribed as a taper schedule to prevent/treat opioid abstinence syndrome (OAS) or neonatal abstinence syndrome (NAS). OBJECTIVE The objective of this study was to determine the percentage of children discharged home on methadone tapers and to develop, assess, and implement an instrument for measuring the complexity of the methadone regimens. METHODS This stud...

OBJECTIVES The use of ceramic femoral heads in total hip arthroplasty (THA) has increased due to their proven low bearing wear characteristics. Ceramic femoral heads are also thought to reduce wear and corrosion at the head-stem junction with titanium (Ti) stems when compared with metal heads. We sought to evaluate taper damage of ceramic compared with metal heads when paired with cobalt chromi...

MargaretAcara Martin W. Adler Edson X. Albuquerque Julius C. Allen William D. Atchison Robert L. Balster Paul Bass MichaelA. Beaven Donald M. Bers C. Paul Bianchi David A. Blake Floyd E. Bloom Peter G. Bradford Craig D. Brater Carl K. Buckner Theodore J. Cicero Marlene L. Cohen Charles R. Craig E. E. Daniel William C. de Groat Louis Diamond Walter R. Dixon Thomas V. Dunwiddie Hugh L. Evans Jerr...

The peer review history for this article is available at https://publons.com/publon/10.1111/2041-210X.13696. TAPER implemented fully in Julia and made open source on Github (https://github.com/chaoszhang/TAPER) Zenodo (Zhang & Mirarab, 2021). Authors plan to maintain the tool least next 5 years. It takes as input a fasta file outputs masked alignment. Data are (https://github.com/yimingnzhao/TA...

background: with the aim of developing methods that could increase the fracture resistance of structurally compromised endodontically treated teeth, this study was conducted to compare the effect of three esthetic post systems on the fracture resistance and failure modes of structurally compromised and normal roots. materials and methods: forty five extracted and endodontically treated maxillar...