Effect of an Additional Hydrophobic Adhesive Layer Application on the Clinical Performance of Class V Resin Composite Restorations: An 18-month Randomized Clinical Trial.

Objectives: This study aimed to evaluate the 18-month clinical performance of two different one-step adhesives that were applied alone or with an additional hydrophobic adhesive layer to noncarious cervical lesions.

Methods And Materials: One hundred sixty teeth in 31 patients were included in the study. Each patient received at least four restorations.

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 Minimum Axial Airway Area and Airway Volume in Orthognathic Surgery Patients.

The aim of this study was to compare preoperative and postoperative linear, planar, and volumetric measurements in the pharyngeal airway in orthognathic surgery patients. Preoperative and postoperative cone beam computed tomography (CBCT) images of 60 patients, who underwent maxillary advancement with mandibular setback (Group I, n=25) and bimaxillary advancement (Group II, n=35), were compared. The airway was divided into 3 regions as nasopharynx, oropharynx, and hypopharynx.

The Effects of MMP3 (rs679620) and VDR (rs731236) Gene Polymorphisms on Dental Caries: A Pilot Study.

Objective:  Caries formation is a process affected by various factors. Studies have shown that genetic factors also play a role in caries formation. The aim of our study is to examine the effects of matrix metalloproteinase ( (rs679620) and vitamin D receptor () (rs731236) gene polymorphisms on caries formation.

Dual- or single rinse? The tubular sealer penetration of endodontic chelating agents.

Introduction: In this study, we aimed to compare the effectiveness of various chelating agents, ethilenediaminetetraacetic acid (EDTA), citric acid (CA), and etidronic acid (HEDP) mixed in two different forms, in removing the smear layer and promoting the penetration of an endodontic sealer into the dentinal tubules of extracted single-rooted teeth.

Methods: The study used 75 teeth divided into five groups: 17% EDTA, 10% CA, 9% HEDP + NaOCl, 9% HEDP + distilled water (DW), and a control (DW) group. Scanning electron microscopy was used to assess smear layer removal and confocal laser microscopy was used to evaluate tubular sealer penetration at different depths from the apical tip.

Surface roughness and cyclic fatigue resistance of a novel shaping system: An in-vitro study.

Recently developed Nickel-Titanium (NiTi) instruments with practical changes have resulted in safer instrumentation. In addition, topographical features on the file surface are a contributing factor to clinical durability. Therefore, this study aimed to investigate both the cyclic fatigue resistance and the roughness change of MTwo and Rotate instruments (VDW, Munich, Germany).

Evaluation of the Quality and Reliability of YouTube Videos Created by Orthodontists as an Information Source for Clear Aligners.

Objective: This study aimed to evaluate the quality, reliability, and content usefulness of videos created by orthodontists on clear orthodontic aligners.

Methods: Videos were screened using YouTube by conducting a search for "Invisalign". After a preliminary evaluation of the first 250 results, 61 videos that met the selection criteria were scored and their length, days since upload, and numbers of views, likes, dislikes, and comments were recorded.

Comparison of Pain Levels on Patients Undergoing Fixed Orthodontic Treatment with 2 Different Self-Ligating Bracket Systems.

Objective: Comparison of pain levels of patients treated with 2 different passive self-ligating bracket systems right after initial archwire placement.

Methods: A total of 34 patients with mild crowding were allocated randomly to 2 groups to be treated using 2 different self-ligating brackets. 0.

Has the COVID-19 Pandemic Affected Orthodontists' Interest in Various Orthodontic Appliances?

Objective: To determine the changes in orthodontists' interest in various orthodontic appliances during the coronavirus disease-2019 (COVID-19) pandemic.

Methods: A questionnaire probing respondents' interest in orthodontic appliances and techniques, including standard buccal metal brackets, self-ligating brackets, standard ceramic brackets, lingual brackets, clear aligners, orthodontic facemasks, removable functional appliances, fixed functional appliances, orthognathic surgery, orthodontic miniscrews, and lingual retainers, was prepared using Google Forms and then sent to the Turkish Orthodontic Society to invite all members of the society to participate in the survey. Of the 1903 members invited, 230 (response rate, 12.

Dynamic Quantitative Imaging of the Masseter Muscles in Bruxism Patients with Myofascial Pain: Could It Be an Objective Biomarker?

We aimed to investigate whether the collaboration of shear wave elastosonography (SWE) and B-mode ultrasonography (US) could be offered as diagnostic tools to assess the presence, severity, and progress of bruxism, as well as a biomarker for the effectiveness of treatment in daily clinical practice. The study was designed as a quantitative evaluation of the masseter muscles (MMs) of the clinically diagnosed bruxism patients suffering from myofascial pain and MMs of the healthy individuals. Clinical examinations were made according to the diagnostic criteria for temporomandibular disorders (DC/TMD), and pain was assessed using a visual analog scale (VAS).

Different Dentin Conditioning Protocols on Bond Strength of a Bioceramic Root Canal Filling.

Objective: Bioceramic-based sealers, in combination with bioceramic-coated gutta-perchas, have become more commonly used in root canal obturation. The present study aimed to assess the influence of laser-assisted dentin conditioning compared with conventional conditioning protocols on the push-out bond strength (PBS) of a bioceramic-based root canal filling.

Material And Methods: Sixty extracted mandibular premolars with one root canal were instrumented with EndoSequence rotary files up to size 40/0.

Evaluation of mandibular cortical and trabecular radiomorphometry in familial Mediterranean fever patients.

Objective: The objective of this retrospective study was to evaluate the mandibular cortical and trabecular morphology and microarchitecture of patients with familial Mediterranean fever (FMF) and compare them to those of healthy individuals by examining radiomorphometric indices on panoramic radiographs.

Study Design: We examined a group of 56 FMF patients aged 5 to 71 years and an age- and sex-matched control group of individuals with no systemic diseases. We classified the FMF and control groups according to age and sex and the FMF group according to colchicine use.

Fractal dimension analysis of different mandibular regions in familial Mediterranean fever patients: A cross-sectional retrospective study.

Familial Mediterranean fever (FMF) is a genetic condition that may cause loss of bone mineral density (BMD) due to chronic inflammation. Previously, fractal dimension (FD) analysis values of mandibular cortical bone were shown to be lower in osteoporosis. Therefore, FD might be considered as an auxiliary tool to refer patients for dual-energy x-ray absorptiometry (DXA), which is the gold standard for BMD measurement.

Effect of Acidic Beverages on the Hardness, Elastic Modulus and Wear Resistance of Giomer and Nongiomer Bulk-fill Materials.

Objectives: The aim of this study was to evaluate and compare the effect of acidic beverages on the hardness, elastic modulus, and wear resistance of four different resin-based restorative materials.

Methods And Materials: A total of 128 specimens (10 mm diameter, 4 mm thickness) were prepared from a conventional resin composite (Filtek Z250 [Z250]), a giomer bulk-fill (Beautifil Bulk Restorative [BBR]) and two nongiomer bulk-fill materials (Tetric N-Ceram Bulk Fill [TNC] and SonicFill 2 [SF2]). Each material group was divided into four subgroups (n=8) according to the storage media: artificial saliva (control), orange juice, regular Coke, and sports drink.

The Condylar Effects of Mesenchymal Stem Cells, Low-Level Laser Therapy and Grape Seed Extract on Functional Mandibular Advancement of the Rat Mandible.

Objective: Functional treatment of Class II malocclusion is expected to lead to adaptation in the condyle. This study aimed to evaluate the effects of adipose tissue-derived mesenchymal stem cells (ADMSCs), low-level laser therapy (LLLT), and grape-seed extract (GSE) on condylar growth after functional mandibular advancement.

Methods: Forty-five rats were randomly divided into 8 groups.

Effect of intraoral scanning distance on the marginal discrepancy of milled interim crowns.

Purpose: To compare the marginal discrepancy between milled interim crowns fabricated using intraoral digital scans acquired at different scanning distances.

Materials And Methods: Ten acrylic typodont teeth were prepared for interim crowns. Three different resin frames of 2.

Push-out bond strength of fiber posts to irradiated and non-irradiated intraradicular dentin.

Objectives: The aim of this study is to evaluate the influence of ionizing radiotherapy on the resin-dentin interface in endodontically treated teeth restored with fiber posts using a dual-cure resin cement performed with the etch-and-rinse (ER) and self-etch (SE) approaches in terms of push-out bond strength (MPa), and to analyze the post/cement/dentin interface using scanning electron microscopy (SEM).

Materials And Methods: Seventy-six single-rooted human teeth were used and randomly assigned into two main groups (n = 38): one non-irradiated group (NoRad) and one group subjected to a cumulative radiation dose of 60 Gy (Rad). All root canals were instrumented and were further subdivided into two subgroups (n = 19) following the adhesive approach: ER (RadER; NoRadER) and SE (RadSE; NoRadSE) used for fiber post luting with the universal adhesive and dual cure resin cement.

The effect of local application of thymoquinone, 's bioactive component, on bone healing in experimental bone defects infected with .

Purpose: This study was performed to evaluate the influence of local application of thymoquinone (TQ) on bone healing in experimental bone defects infected with (PG).

Methods: Forty-two female rats were randomly divided into 6 groups. A bone defect was created on the right tibia of all animals.

An Updated Comparison of Current Impression Techniques Regarding Time, Comfort, Anxiety, and Preference: A Randomized Crossover Trial.

Objective: To compare digital and conventional impressions in terms of impression time, and comfort, anxiety and preference of the patients.

Methods: Digital scans (Trios 3 Cart) and conventional impressions (irreversible hydrocolloid material, hand-mixed) were randomly performed on 39 patients by a single experienced operator in 14-21 day intervals (cross-over design). Impression time, comfort score with visual analog scale (VAS), anxiety level with State-Trait Anxiety Scale, and preference with a questionnaire were recorded.

Accuracy of single implant scans with a combined healing abutment-scan body system and different intraoral scanners: An in vitro study.

Objective: The aim of the present study was to evaluate the accuracy of single implant scans with a combined healing abutment-scan body (CHA-SB) system using different intraoral scanners.

Methods: A partially edentulous model with an implant was fabricated, and a CHA-SB system was secured on the implant. The model was scanned using an industrial-grade blue light scanner (ATOS Core 80) and a master reference model was generated (MRM).

The preventive effect of medicinal herbal extract and gelatin sponge on alveolar osteitis: An in vivo micro-computed tomography and immunohistochemical analysis in rats.

Objective: The purpose of this study was to evaluate the preventive effect of medicinal herbal extract (MHE) and gelatin sponge on alveolar osteitis (AO) in an experimental rat model.

Design: Twenty-one Sprague-Dawley male rats with a mean age of 12 weeks were used. After extraction of the maxillary right first molar, an AO model was created for each animal.

Effect of Premedication on the Success of Inferior Alveolar Nerve Block in Patients with Irreversible Pulpitis: A Systematic Review of the Literature.

Background: Failure in the provision of inferior alveolar nerve block anesthesia (IANB) is a significant problem during endodontic treatment of irreversible pulpitis. Various methodologies have been advocated one of which is administration of premedication prior to anesthesia. Despite the considerable number of reports, the topic yet deserves more clarification.

Evaluation of the influence of various restoration techniques on fracture resistance of endodontically treated teeth with different cavity wall thicknesses.

Aims: The aim of this study was to compare the effect of different restoration techniques on fracture resistance of endodontically treated teeth with different wall thicknesses.

Materials And Methods: Extracted and endodontically treated 210 premolars were randomly divided into three thickness groups [2 mm (A), 1.5 mm (B), and 1 mm (C)] and, each group was further divided into seven restoration subgroups (n = 10): direct composite (control) (K), composite with fiber on cavity floor (KT), composite with fiber on occlusal level (KO), fiber post and composite (FP), inlay (L), fiber on cavity floor and inlay (LT), and inlay and fiber on occlusal level (LO).

Perceived sources and levels of stress, general self-efficacy and coping strategies in preclinical dental students.

Dental education programs are known to be highly stressful and stress can affect general health. The aims were to identify sources of stress among preclinical students and to evaluate their perceived levels of stress, self-efficacy and effective coping strategies in a private dental school. One hundred preclinical students in a Turkish private dental school were surveyed using dental environment stress (DES), perceived stress (PSS), general self-efficacy (G-SES) and brief coping scales (Brief-COPE).