Comparison of 8th and 7th editions of TNM staging in terms of mortality, persistent disease, and response to treatment in patients with differentiated thyroid cancer.

Objective: To compare the eighth and seventh editions of TNM staging (TNM-8 and TNM-7) on disease-related mortality, persistent disease, and response to treatment in patients with differentiated thyroid cancer (DTC).

Methods And Materials: We studied 400 patients (79% female) with DTC with a mean age of 40.93±14.

Management of recurrent aphthous ulcers with therapeutic Nd:YAG laser, using two different methods.

Background: Low-level laser therapy (LLLT) has been applied for the management of craniomaxillofacial disorders, including intraoral wounds, as well as recurrent aphthous stomatitis (RAS) lesions. However, the proper combination of laser features and tissue characteristics remains the major challenge in the realm of photobiomodulation (PBM).

Objectives: The aim of the present study was to assess the feasibility of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser therapy in treating RAS lesions, and to compare 2 techniques, different with regard to the distance between the fiber tip and the ulcer.

Comparing Antegrade and Retrograde Parotidectomy: Surgical Parameters and Complications.

Introduction: Patotidectomy is the treatment of choice for superficial parotid gland lesions. The present study aimed to assess the facial nerve status, as well as peri-and postsurgical complications, in two surgical techniques (antegrade and retrograde) for parotidectomy.

Materials And Methods: This study was conducted on 56 patients diagnosed with parotid neoplasms from 2013-2015.

Average and Maximum Papilla Heights around Dental Implants in the Anterior Maxillary Region: A Retrospective Clinical Study.

Objective: The aim of this study was to determine the average and maximum height of the papilla around maxillary anterior implants in respect of neighboring structures and location of implants.

Materials And Methods: 92 dental implants from 63 patients were investigated in this study. Those implants were placed in the anterior maxillary region and had been loaded for a minimum of one year.

Unusual presentation of lumbar chordoma on bone scintigraphy in a young patient.

Chordoma is a rare bone cancer which arises from undifferentiated notochordal remnants in the axial skeleton. It generally has slow-growing and locally aggressive behavior. This tumor is usually diagnosed by CT and MRI modalities and the role of SPECT/CT is still debated.

Exploring the dynamics of Zr-based metal-organic frameworks containing mechanically interlocked molecular shuttles.

Zr(iv) metal-organic frameworks (MOFs) UiO-68 and PCN-57, containing triphenylene dicarboxylate (TPDC) and tetramethyl-triphenylene dicarboxylate (TTDC) linkers, respectively, were doped with an H-shaped tetracarboxylate linker that contains a [2]rotaxane molecular shuttle. The new MOFs, UWDM-8 and UWDM-9, contain a [2]rotaxane crossbar spanning the tetrahedral cavities of the fcu topology while the octahedral cavities remain empty. C solid-state NMR (SSNMR) spectra and solution H NMR spectra verified that the [2]rotaxanes were included as designed.

"Lignophines": lignin-based tertiary phosphines with metal-scavenging ability.

Methacrylated lignin was reacted with PH(g) to prepare a phosphorus rich bio-based polymer containing PH/PH functional groups, which were converted to tertiary phosphine units via the phosphane-ene reaction. This represents a straightforward method for the upconversion of low-value biomass waste to useful inorganic polymer with potential utility in metal scavenging applications.

Advanced Case of Achalasia That Appeared on 68Ga-Prostate-Specific Membrane Antigen PET/CT.

We report a known case of severe achalasia that appeared on Ga-prostate-specific membrane antigen (PSMA) PET/CT. The patient was a known case of high-grade transitional cell carcinoma and suspicious diagnosis of prostate cancer referred for Ga-PSMA PET/CT. Ga-PSMA PET/CT showed linear increased activity in the esophageal wall as well as a distended esophagus.

Comparison of the Effects of Er, Cr: YSGG Laser and Super-Saturated Citric Acid on the Debridement of Contaminated Implant Surfaces.

Several techniques such as using citric acid, plastic curettes, ultrasonic devices, and lasers have been suggested for debridement of contaminated implant surfaces. This comparative investigation aimed to assess and compare the effects of Er, Cr: YSGG laser and super-saturated citric acid on the debridement of contaminated dental implant surfaces. In this in-vitro study, 12 contaminated failed implants were collected and randomly divided into 2 groups (6 in group A, and 6 in group B).

Influence of axle length on the rate and mechanism of shuttling in rigid H-shaped [2]rotaxanes.

A series of [2]rotaxane molecular shuttles was prepared containing a dibenzo[24]crown-8 () wheel and a rigid H-shaped axle with varying track lengths between recognition sites; from 7.4 to 20.3 Å as defined by 1-4 phenyl rings or a naphthyl group.

Effects of Root Debridement With Hand Curettes and Er:YAG Laser on Chemical Properties and Ultrastructure of Periodontally-Diseased Root Surfaces Using Spectroscopy and Scanning Electron Microscopy.

The efficacy of erbium-doped yttrium aluminum garnet (Er:YAG) laser for root debridement in comparison with curettes has been the subject of many recent investigations. Considering the possibility of chemical and ultra-structural changes in root surfaces following laser irradiation, this study sought to assess the effects of scaling and root planing (SRP) with curettes and Er:YAG laser on chemical properties and ultrastructure of root surfaces using spectroscopy and scanning electron microscopy (SEM). In this in vitro experimental study, extracted sound human single-rooted teeth (n = 50) were randomly scaled using manual curettes alone or in conjunction with Er:YAG laser at 100 and 150 mJ/pulse output energies.

Comparing fibroblast attachment in root surface scaling with Er, Cr:YSGG laser versus ultrasonic scaler: A SEM study.

Background And Objectives: The regeneration of periodontal support is the main concern in periodontal therapy. The aim of this in vitro study was to investigate the fibroblasts attachment on root surfaces after scaling with Er, Cr:YSGG laser and ultrasonic instruments using scanning electron microscopy (SEM).

Methods: 72 root plates of ∼6 × 4 × 1 mm in dimension were prepared from 27 single-rooted human mature teeth and were then divided into four groups.

Metal-organic frameworks utilising an interlocked, hexadentate linker containing a tetra-carboxylate axle and a bis(pyridine) wheel.

A [2]rotaxane linker was synthesized which combines an H-shaped axle containing four 3-carboxyphenyl groups and a macrocyclic wheel with two 4-pyridyl groups. Metal-organic framework materials were prepared with Cu and Zn ions X-ray structures show that the materials contain unique frameworks that are threaded solely due to the interpenetrated nature of the linker.

Clinical Comparison of Full and Partial Double Pedicle Flaps with Connective Tissue Grafts for Treatment of Gingival Recession.

Statement Of The Problem: Gingival recession has been considered as the most challenging issue in the field of periodontal plastic surgery.

Purpose: The purpose of this study was to evaluate the clinical efficacy of root coverage procedures by using partial thickness double pedicle graft and compare it with full thickness double pedicle graft.

Materials And Method: Eight patients, aged 15 to 58 years including 6 females and 2 males with 20 paired (mirror image) defects with class I and II gingival recession were randomly assigned into two groups.

The Valuable Role of Measuring Serum Lipid Profile in Cancer Progression.

Objective: Serum lipid levels are not only associated with etiology, but also with prognosis in cancer. To investigate this issue further, we aimed to evaluate the serum levels of lipids in association with the most important prognostic indicators in cancer patients at the start of chemotherapy.

Methods: In a retrospective cross-sectional study, using existing medical records obtained from 2009-2014, the data of all incident cancer cases in Iranian patients referred to the Semnan oncology clinic for chemotherapy were analyzed.

Identify Survival Predictors of the First Kidney Transplantation: A Retrospective Cohort Study.

Background: The first kidney transplant survival is very important. We know that short-term survival of kidney transplantation is improved over the past two decades in Iran; however, no information is available on long-term survival and predictors. This study explored factors influencing long-term renal transplant survival at northwest of Iran.

Bone-added periodontal plastic surgery: a new approach in esthetic dentistry.

This article proposes a combined technique including bone grafting, connective tissue graft, and coronally advanced flap to create some space for simultaneous bone regrowth and root coverage. A 23 year-old female was referred to our private clinic with a severe class II Miller recession and lack of attached gingiva. The suggested treatment plan comprised of root coverage combined with xenograft bone particles.

Comparison of the clinical outcomes of connective tissue and acellular dermal matrix in combination with double papillary flap for root coverage: A 6-month trial.

Background: Different techniques have been proposed for the treatment of gingival recession. The majority of current procedures use autogenous soft-tissue grafts, which are associated with morbidity at the donor sites. Acellular dermal matrix (ADM) Alloderm is an alternative donor material presented to reduce related morbidity and provide more volume of the donor tissue.

Analysis of RANKL gene polymorphism (rs9533156 and rs2277438) in Iranian patients with chronic periodontitis and periimplantitis.

Objective: RANK/OPG/RANKL pathway plays a significant role in osteoclastogenesis, osteoclast activation, and regulation of bone resorption. The aim of this study was to investigate the association of RANKL gene polymorphisms (rs9533156 and rs2277438) with chronic periodontitis and peri-implantitis in an Iranian population.

Design: 77 patients with chronic periodontitis, 40 patients with peri-implantitis and 89 periodontally healthy patients were enrolled in this study.

Knowledge, attitude and practices of relief workers regarding first aid measures.

Objective: To assess the knowledge, attitude and practices of relief workers posted in rescue and relief bases of the Red Crescent Society of Mazandaran province of Iran during Nouroz holidays.

Methods: Two hundred and nineteen relief workers were selected as the study sample from thirteen Norouz rescue and relief bases of Red Crescent Society in Mazandaran province, which has 13 cities, for this cross-sectional descriptive study. Through a cluster random sampling, a pre- tested, structured and validated questionnaire was used to assess knowledge and attitude of relief workers.

Three dimensional socket preservation: a technique for soft tissue augmentation along with socket grafting.

Background: A cursory review of the current socket preservation literatures well depicts the necessity of further esthetic considerations through the corrective procedures of the alveolar ridge upon and post extraction. A new technique has been described here is a rotational pedicle combined epithelialized and connective tissue graft (RPC graft) adjunct with immediate guided tissue regeneration (GBR) procedure.

Results: We reviewed this technique through a case report and discuss it's benefit in compare to other socket preservation procedures.

Clinical, histologic and histomorphometric evaluation of socket preservation using a synthetic nanocrystalline hydroxyapatite in comparison with a bovine xenograft: a randomized clinical trial.

Objectives: The aim of this study was to compare a nanocrystalline hydroxyapatite (NCHA), NanoBone(®) and a deproteinized bovine bone mineral (DBBM), Bio-Oss(®) with a collagen membrane on the horizontal ridge width alterations following tooth extraction, in addition to histologic aspects of the grafted extraction sockets.

Material And Methods: In this randomized clinical trial, 28 symmetrical, non-molar, extraction sockets using a split-mouth design in 12 patients (eight women and four men; aged 21-60; mean 44.6 ± 11.

Effect of bioactive ceramic and recombinant human transforming growth factor-beta (rhTGF-beta) on regeneration of parietal bone defects in rat.

Aims: The purpose of this study was to evaluate the regenerative response of parietal bone defects in rats to bioactive ceramic and TGF-beta 1.

Materials And Methods: Sixty mature adult rats with initial weights of 300 g to 324 g were used. The diameter of each defect was 3 mm.

An evaluation of the occluding effects of Er;Cr:YSGG, Nd:YAG, CO₂ and diode lasers on dentinal tubules: a scanning electron microscope in vitro study.

Objective And Background: Dentin hypersensitivity (DH) is one of the most frequent problems causing patients' complaints following stimulation of cervically exposed dentin. Studies have shown that different lasers have various occluding effects on dentinal tubules. This study is aimed at evaluating the occluding effects of Er;Cr:YSGG (P:0.

Evaluation of the periodontal status of palatally impacted maxillary canines after exposure using a modified window technique.

Aim: To evaluate the periodontal status of surgically exposed maxillary canines after their alignment.

Patients And Methods: Twenty consecutive patients with one palatally impacted maxillary canine and one fully erupted synergist were selected. The impacted canines were surgically exposed with a modified window technique, an attachment was bonded, and the teeth were extruded and aligned.