Elastocaloric, barocaloric and magnetocaloric effects in spin crossover polymer composite films.

Giant barocaloric effects were recently reported for spin-crossover materials. The volume change in these materials suggests that the transition can be influenced by uniaxial stress, and give rise to giant elastocaloric properties. However, no measurements of the elastocaloric properties in these compounds have been reported so far.

The role of autophagy in odontogenesis, dental implant surgery, periapical and periodontal diseases.

Autophagy is a cellular process that is evolutionarily conserved, involving the sequestration of damaged organelles and proteins into autophagic vesicles, which subsequently fuse with lysosomes for degradation. Autophagy controls the development of many diseases by influencing apoptosis, inflammation, the immune response and different cellular processes. Autophagy plays a significant role in the aetiology of disorders associated with dentistry.

Tuning of the magneto-caloric effects in NiMnInmagnetic shape memory alloys by substitution of boron.

In this study, we report the structural, magnetic, and magnetocaloric properties of B substitution on the Mn site in NiMnBIn(= 0.5, 1.0) Heusler alloys.

The relationship of peri-implant soft tissue wound healing with implant cover screw design: Cross-sectional study.

Introduction: Dental implants are frequently preferred method for oral rehabilitation all over the world. The incidence of various complications such as incorrect prosthesis, peri-implant mucositis, and peri-implantitis is high; premature loss of implants is encountered due to osteointegration process not being completed for some unexplained reasons. However, there is no study in the literature examining the nonfunctional period of implants.

Can locally applied risedronate be an effective agent when combined with xenografts? An animal study.

Background: To examine the effects of local risedronate application with xenografts on healing of rabbit skull defects using histological, histomorphometric, immunohistochemical, and three-dimensional radiological methods.

Methods: Two critical-sized defects with a diameter of 10 mm were created in 16 rabbits and filled with xenogenic bone graft and xenogenic bone graft + 5 mg risedronate in the control I and risedronate (RIS) groups, respectively. Residual graft, new bone, soft tissue areas, and bone volume were evaluated in the 4- and 8-week study groups.

Vertical Bone Augmentation With Customized CAD/CAM Titanium Mesh for Severe Alveolar Ridge Defect in the Posterior Mandible: A Case Letter.

Implant rehabilitation after implant removal is a major challenge, especially in mandibular posterior arches. This case report describes the reconstruction of a severe vertical bone defect using customized titanium mesh covered by collagen membrane and solid advanced platelet-rich fibrin, combined with autogenous bone, deproteinized bovine bone mineral, and injectable platelet-rich fibrin after implant removal caused by advanced peri-implantitis. This individualized titanium mesh may be a reliable technique for severe alveolar ridge reconstruction, with the additional benefits of reduced surgery time and a simplified operation.

Effects of a locally administered risedronate/autogenous bone graft combination on bone healing in a critical-size rabbit defect model.

Background: Risedronate is a bisphosphonate with poor oral absorption. An extremely hydrophilic molecule that has a high affinity for bone, risedronate also inhibits the farnesyl diphosphate synthase enzyme, inhibiting osteoclastic activity and reducing bone turnover and resorption. Autogenous bone grafts contain osteogenic cells and osteoinductive factors that are essential for bone regeneration and are therefore considered the gold standard.

Effect of Locally Administered Denosumab on Bone Graft Healing in Rabbit Critical-Size Calvarial Defects.

Background/aim: Denosumab is a human monoclonal immunoglobulin G2 antibody developed from the ovarian cells of Chinese hamsters. We aimed to histomorphometrically and radiologically evaluate the effects of xenografts used with local denosumab on the healing of defect sites using rabbit skulls.

Materials And Methods: Two 10-mm diameter critical-size defects were created in 16 rabbits.

Giant and Reversible Barocaloric Effect in Trinuclear Spin-Crossover Complex Fe (bntrz) (tcnset).

A giant barocaloric effect (BCE) in a molecular material Fe (bntrz) (tcnset) (FBT) is reported, where bntrz = 4-(benzyl)-1,2,4-triazole and tcnset = 1,1,3,3-tetracyano-2-thioethylepropenide. The crystal structure of FBT contains a trinuclear transition metal complex that undergoes an abrupt spin-state switching between the state in which all three Fe centers are in the high-spin (S = 2) electronic configuration and the state in which all of them are in the low-spin (S = 0) configuration. Despite the strongly cooperative nature of the spin transition, it proceeds with a negligible hysteresis and a large volumetric change, suggesting that FBT should be a good candidate for producing a large BCE.

Evaluation of adipokines and inflammatory mediator expression levels in patients with periodontitis and peri-implantitis: a cross-sectional study.

Objectives: The aim of this study was to analyze the mRNA and protein expression of adiponectin, leptin, visfatin, tumor necrosis factor (TNF)-α, and interleukin (IL)-6 levels in periodontitis and peri-implantitis sites in systemically healthy individuals and to investigate the influence of the presence of current periodontitis on their expression levels in peri-implantitis sites.

Materials And Methods: Soft tissue biopsy samples were collected from 60 systemically healthy patients [15 periodontally healthy patients (group I), 16 patients with periodontitis (group II), 15 patients with peri-implantitis (group III), and 14 patients with peri-implantitis and periodontitis (group IV)]; mRNA expression levels of adiponectin, leptin, visfatin, TNF-α, and IL-6 were measured by quantitative real-time PCR; and their protein levels were assessed by immunohistochemistry.

Results: The mRNA expression levels of all biomarkers were significantly higher for group II compared to group I, while significantly higher levels of leptin, TNF-α, and IL-6 were observed in group III in comparison with group I.

Locally administrated single-dose teriparatide affects critical-size rabbit calvarial defects: A histological, histomorphometric and micro-CT study.

Objective: The aim of this study was to evaluate the effect of teriparatide (PTH 1-34, rhPTH) on a rabbit defect model with local xenogen grafts histomorphometrically and radiologically.

Methods: For this purpose, two 10 mm diameter critical-size defects were created in the calvaria of 16 rabbits. In the control group, the defect area was filled with a xenogen graft, while in the teriparatide group (PTH 1-34), a xenogen graft combination with 20 mcg teriparatide was used.

Versatility of high resolution ultrasonography in the assessment of granulomas and radicular cysts: a comparative in vivo study.

Objectives: To evaluate and compare the diagnostic potential of high resolution ultrasound with periapical radiographs (PR) and CBCT in assessing granulomas and radicular cysts.

Methods: This study included a total of 33 teeth from 33 patients with periapical lesions. Subjects were distributed among three groups.

Effect of topical ozonetherapy on gingival wound healing in pigs: histological and immuno-histochemical analysis.

Objectives: In this study, the effects of ozonetherapy on secondary wound healing were evaluated histologically and immuno-histochemically.

Material And Methods: Material and Methods: 8 healthy pigs were used in this study. Six wounds with 10 mm in diameter were created through the punch technique on the palatinal gingiva of each pig.

Effects of local alendronate administration on bone defect healing. Histomorphometric and radiological evaluation in a rabbit model.

Purpose: To performed a histomorphometric and radiological study to evaluate the effects of alendronate sodium administered locally in mandibular bone defects created in rabbits.

Methods: Two circular defects 5 mm in diameter were created bilaterally in the mandibular corpus of 20 New Zealand rabbits (i.e.

Peripheral osteoma in an unusual location on the mandible.

Osteoma is a benign, slow-growing, painless, discrete lesion which is characterised with the proliferation of a compact or cancellous bone. Osteomas are rare on the jaws. Lesions of the mandible developed most often in the condyle, angle and margin.

Biocompatibility of nanosilver-coated orthodontic brackets: an in vivo study.

Background: Nanosilver particles of which antibacterial and antifungal properties have been shown in various in vitro and in vivo studies are used in many medical and dental fields for the prevention of infection. In this study, it is intended to evaluate the biocompatibility of nanosilver-coated brackets.

Methods: Nanosilver coating process was applied to the standard orthodontic brackets by a physical vapor deposition system.

Comparison of Radiofrequency and Electrocautery With Conventional Scalpel Incisions.

Purpose: The disadvantages of conventional scalpels, including insufficient control of bleeding, prompted us to search for new alternative methods such as electrosurgery and radiosurgery. In this study, the conventional scalpel was compared with radiosurgery and electrosurgery for wound healing with assessment of lateral heat production, inflammation, and instrument performance.

Materials And Methods: Incisions were made in the palatal mucosa of 42 Wistar rats using a scalpel, electrocautery instrument, or radiofrequency instrument.

Histological Evaluation of the Effect of Concentrated Growth Factor on Bone Healing.

Objectives: The aim of this study was to evaluate the effects of concentrated growth factors (CGF) on the healing of peri-implant bone defects in an animal model.

Study Design: Twenty 4-month-old New Zealand White rabbits, each with an average weight of 3.5 kg, were used in this blinded, prospective, experimental study.

Familial florid osseous dysplasia: a report with review of the literature.

There are three types of osseous dysplasia: periapical cemental dysplasia (PCD), focal cemento-osseous dysplasia (FCD) and florid osseous dysplasia (FOD). While PCD is often observed in mandibular anterior teeth, FCD mainly affects mandibular posterior teeth. FOD, on the other hand, commonly involves both jaws.

Effect of Porous Titanium Granules on Bone Regeneration and Primary Stability in Maxillary Sinus: A Human Clinical, Histomorphometric, and Microcomputed Tomography Analyses.

The aim of this randomized controlled study was to comparatively analyze the new bone (NB), residual bone, and graft-bone association in bone biopsies retrieved from augmented maxillary sinus sites by histomorphometry and microcomputed tomography (MicroCT) in a split-mouth model to test the efficacy of porous titanium granules (PTG) in maxillary sinus augmentation. Fifteen patients were included in the study and each patient was treated with bilateral sinus augmentation procedure using xenograft (equine origine, granule size 1000-2000 μm) and xenograft (1 g) + PTG (granule size 700-1000 μm, pore size >50 μm) (1 g), respectively. After a mean of 8.

Evaluation of the effects of platelet-rich fibrin on bone regeneration in diabetic rabbits.

Objectives: This study aimed to investigate the effect of platelet-rich fibrin on bone regeneration in critical size defects in the calvaria of diabetic rabbits.

Study Design: In total, 40 male New Zealand rabbits, were divided into two groups a non-diabetic control group (Group A) and a diabetic experimental group (Group B). Two bicortical circular defects 15 mm in diameter were created in the parietal bone of each animal.

Facial Candidal Abscess in a Patient with Unknown Type 2 Diabetes Mellitus.

Introduction: Facial candidal abscess is an infection with a fungal cause which was presented in this case such a rarity. We report a rare case of facial abscess due to Candida species in a patient with unknown diabetes.

Materials And Methods: The patient presented with a longstanding firm swelling which occurred 2 weeks ago and did not show any improvement of healing process in spite of surgical and medical treatments.

Overexpressions of hBD-2, hBD-3, and hCAP18/LL-37 in Gingiva of Diabetics with Periodontitis.

Antimicrobial peptides of the epithelium play a significant role in the innate immune response in the oral cavity, which is constantly exposed to microbes. Type 2 diabetes mellitus (T2DM) is a highly prevalent metabolic disease which is related to periodontal disease. To date, little is known about expressions of antimicrobial peptides in gingival epithelia of diabetics.

Oral mucosal lesions: a retrospective review of one institution's 13-year experience.

Background/aim: To investigate the relative frequency of biopsied nonneoplastic oral mucosal lesions in Ankara, Turkey.

Materials And Methods: Biopsy records of a single center from 2000-2012 were retrospectively collected. Diagnosis was recorded and evaluated with respect to patient demographics (age, sex) and location of the lesion.

Comparison of methods for the extraction of DNA from formalin-fixed, paraffin-embedded archival tissues.

Aim: Discussing a protocol involving xylene-ethanol deparaffinization on slides followed by a kit-based extraction that allows for the extraction of high quality DNA from FFPE tissues.

Methods: DNA was extracted from the FFPE tissues of 16 randomly selected blocks. Methods involving deparaffinization on slides or tubes, enzyme digestion overnight or for 72 hours and isolation using phenol chloroform method or a silica-based commercial kit were compared in terms of yields, concentrations and the amplifiability.