Negative / Null Result ReportOpen accessDentistry
Mario Imburgia, Silvia Logozzo, Uli Hauschild et al. · 2017 · BMC Oral Health
BACKGROUND: Until now, only a few studies have compared the ability of different intraoral scanners (IOS) to capture high-quality impressions in patients with dental implants. Hence, the aim of this study was to compare the trueness and precision of four IOS in a partially edentulous model (PEM) with three implants and in a fully edentulous model (FEM) with six implants. METHODS: Two gypsum models were prepared with respectively three and six implant analogues, and polyether-ether-ketone cylinders screwed on. These models were scanned with a reference scanner (ScanRider®), and with four IOS (C
View details →Negative / Null Result ReportDentistry
Le Han, Takashi Okiji · 2013 · International Endodontic Journal
AIM: To compare white ProRoot MTA (WMTA), EndoSequence BC sealer (BC sealer) and Biodentine with regard to their ability to produce apatites and cause Ca and Si incorporation in adjacent human root canal dentine after immersion in…
View details →Negative / Null Result ReportOpen accessDentistry
Maryam Alsadat Hashemipour, Mehrnaz Tahmasbi, Farnaz Fahimi Hanzaei · 2012 · Medicina oral, patología oral y cirugía bucal
OBJECTIVES: The aim of this study is to evaluate the position of impacted third molars based on the classifications of Pell & Gregory and Winter in a sample of Iranian patients. STUDY DESIGN: In this retrospective study, up to 1020…
View details →Negative / Null Result ReportOpen accessDentistry
Mario Bassetti, Dorothee Schär, Beat Wicki et al. · 2013 · Clinical Oral Implants Research
OBJECTIVE: The objective of the study is to compare the clinical, microbiological and host-derived effects in the non-surgical treatment of initial peri-implantitis with either adjunctive local drug delivery (LDD) or adjunctive photodynamic therapy (PDT) after 12 months. MATERIALS AND METHODS: Forty subjects with initial peri-implantitis, that is, pocket probing depths (PPD) 4-6 mm with bleeding on probing (BoP) and radiographic bone loss ≤2 mm, were randomly assigned to two treatment groups. All implants were mechanically debrided with titanium curettes and with a glycine-based powder airpoli
View details →Negative / Null Result ReportOpen accessDentistry
Kimon Divaris, K. L. Monda, K. E. North et al. · 2013 · Human Molecular Genetics
Chronic periodontitis (CP) is a common oral disease that confers substantial systemic inflammatory and microbial burden and is a major cause of tooth loss. Here, we present the results of a genome-wide association study of CP that was…
View details →Negative / Null Result ReportDentistry
Stefan Roehling, Monika Astasov‐Frauenhoffer, Irmgard Hauser‐Gerspach et al. · 2016 · Journal of Periodontology
Background: It has been hypothesized that zirconia might have a reduced bacterial adhesion compared with titanium; however, results from experimental studies are rather controversial. The aim of the present study is to compare biofilm…
View details →Negative / Null Result ReportDentistry
Dorothee Schär, Christoph A. Ramseier, Sigrun Eick et al. · 2012 · Clinical Oral Implants Research
OBJECTIVE: To compare the adjunctive clinical effects in the non-surgical treatment of peri-implantitis with either local drug delivery (LDD) or photodynamic therapy (PDT). MATERIAL AND METHODS: Forty subjects with initial…
View details →Negative / Null Result ReportOpen accessDentistry
Hyunwoo Yang, Eun Jo, Hyung Jun Kim et al. · 2020 · Journal of Clinical Medicine
Patients with odontogenic cysts and tumors may have to undergo serious surgery unless the lesion is properly detected at the early stage. The purpose of this study is to evaluate the diagnostic performance of the real-time object detecting deep convolutional neural network You Only Look Once (YOLO) v2-a deep learning algorithm that can both detect and classify an object at the same time-on panoramic radiographs. In this study, 1602 lesions on panoramic radiographs taken from 2010 to 2019 at Yonsei University Dental Hospital were selected as a database. Images were classified and labeled into f
View details →Negative / Null Result ReportDentistry
Rachel Anner, Yoav Grossmann, Yael Anner et al. · 2010 · Implant Dentistry
OBJECTIVES: To evaluate the factors associated with long-term implant survival in a large cohort of patients in regular follow-up until data collection. METHODS: The study population consisted of 475 patients who were referred to a private…
View details →Negative / Null Result ReportDentistry
Raphaël Moëne, Fabien Décaillet, E. Andersen et al. · 2010 · Journal of Periodontology
BACKGROUND: The purpose of this study is to evaluate the safety, patient acceptance, and short-term microbiologic effect of a new air-polishing device in subjects in maintenance care with residual pockets > or =5 mm. METHODS: This was an…
View details →Negative / Null Result ReportDentistry
Shilpa Trivedi, Nand Lal, Abbas Ali Mahdi et al. · 2013 · Journal of Periodontology
BACKGROUND: The aim of this study is to investigate the impact of diabetes, a known risk factor for periodontitis, on activities of antioxidant enzymes superoxide dismutase (SOD), glutathione reductase (GR), and catalase (CAT) as well as…
View details →Negative / Null Result ReportDentistry
Antonio Aguilar‐Salvatierra, José Luis Calvo‐Guirado, Maximino González‐Jaranay et al. · 2015 · Clinical Oral Implants Research
OBJECTIVES: The aim of this study was to evaluate implant survival and primary stability parameters in patients with diabetes with different levels of glycosylated hemoglobin Alc (HbA1c) treated with immediate placement and…
View details →Negative / Null Result ReportOpen accessDentistry
DE McLean, EJ Meyers, VL Guillory et al. · 2015 · Operative Dentistry
PURPOSE: Universal bonding agents have been introduced for use as self-etch or etch-and-rinse adhesives depending on the dental substrate and clinician's preference. The purpose of this study was to evaluate the shear bond strength (SBS)…
View details →Negative / Null Result ReportDentistry
Panagiotis A. Koromantzos, Konstantinos Makrilakis, Xanthippi Dereka et al. · 2011 · Journal of Periodontology
BACKGROUND: It is well accepted that glycemic control in patients with diabetes mellitus (DM) is affected by systemic inflammation and oxidative stress. The effect of periodontal therapy on these systemic factors may be related to…
View details →Negative / Null Result ReportDentistry
Frank Schwarz, Didem Hazar, Kathrin Becker et al. · 2018 · Journal Of Clinical Periodontology
OBJECTIVES: To assess and compare the efficacy and safety of autogenous tooth roots (TR) and autogenous bone blocks (AB) for lateral alveolar ridge augmentation and two-stage implant placement. MATERIAL AND METHODS: A total of 30 patients…
View details →Negative / Null Result ReportDentistry
Daniel M. Mazzaferro, Ari M. Wes, Sanjay Naran et al. · 2017 · Plastic & Reconstructive Surgery
BACKGROUND: The effects of orthognathic surgery go beyond objective cephalometric correction of facial and dental disproportion and malocclusion, respectively. The authors hypothesized that there is tangible improvement following surgery…
View details →Negative / Null Result ReportOpen accessDentistry
Valentina Lanteri, Gianguido Cossellu, Marco Farronato et al. · 2020 · Scientific Reports
The Palatal Rugae are considered a useful human identification marker for both orthodontists and forensic personnel. The principal aim of the present study was to evaluate the stability of palatal rugae with a 3D-3D superimposition procedure following Slow Maxillary Expansion (SME), in order to assess whether they kept their uniqueness and validity for human identification, even after a specific dental treatment. For this purpose, a sample of 27 digital dental models - belonging to growing patients (13 males and 14 females), aged between 8.5 and 15 years, who underwent SME therapy - was retros
View details →Negative / Null Result ReportOpen accessDentistry
Zeynep Başağaoğlu Demirekin, Muhammed Hilmi Büyükçavuş · 2022 · BMC Medical Education
BACKGROUND: The long-term psychological effects of COVID-19 on dental students are unclear. The aim of this cross-sectional online study was to investigate the psychological effects of the COVID-19 pandemic on dental students. METHOD: The Quality of Life Scale (WHOQOL-BREF) was sent to all dental students through Google Forms to evaluate their quality of life (QoL), and the DASS-21 scale was used to evaluate their psychosocial status due to distance learning during the COVID-19 pandemic. The answers were analyzed both on the basis of year of education and type of education (online versus class
View details →Negative / Null Result ReportDentistry
Chia Wen Tsai, Wen Shin Chang, Kuo Cheng Lin et al. · 2014 · PubMed
Interleukin-10 (IL10) is an immunosuppressive cytokine which may facilitate carcinogenesis by down-regulating interferon-gamma production and supporting tumor escape from the immune response. Polymorphisms within the promoter of IL10 gene…
View details →Negative / Null Result ReportOpen accessDentistry
Gerlig Widmann, Alexander Bischel, Andreas Stratis et al. · 2017 · Dentomaxillofacial Radiology
OBJECTIVES: The objective of this study was to determine how iterative reconstruction technology (IRT) influences contrast and spatial resolution in ultralow-dose dentomaxillofacial CT imaging. METHODS: A polymethyl methacrylate phantom with various inserts was scanned using a reference protocol (RP) at CT dose index volume 36.56 mGy, a sinus protocol at 18.28 mGy and ultralow-dose protocols (LD) at 4.17 mGy, 2.36 mGy, 0.99 mGy and 0.53 mGy. All data sets were reconstructed using filtered back projection (FBP) and the following IRTs: adaptive statistical iterative reconstructions (ASIRs) (ASIR
View details →Negative / Null Result ReportDentistry
Cristina Neves Girao Salgado Soares, Flávia Lucisano Botelho do Amaral, Marcelo Ferraz Mesquita et al. · 2017 · PubMed
This in vitro study evaluated the efficacy of toothpastes containing abrasive and chemical whitening agents in reducing the extrinsic discoloration of dental enamel. Sixty slabs of dentin from human teeth were sealed so that only the…
View details →Negative / Null Result ReportOpen accessDentistry
Georgia Verardi, Maximiliano Sérgio Cenci, Tamires Timm Maske et al. · 2016 · Brazilian Oral Research
Oral rehabilitation with osseointegrated implants is a way to restore esthetics and masticatory function in edentulous patients, but bacterial colonization around the implants may lead to mucositis or peri-implantitis and consequent implant loss. Peri-implantitis is the main complication of oral rehabilitation with dental implants and, therefore, it is necessary to take into account the potential effects of antiseptics such as chlorhexidine (CHX), chloramine T (CHT), triclosan (TRI), and essential oils (EO) on bacterial adhesion and on biofilm formation. To assess the action of these substance
View details →Negative / Null Result ReportOpen accessDentistry
Kittisak Sanon, Takashi Hatayama, Antonín Tichý et al. · 2022 · Dental Materials Journal
This study investigated the influence of application/wash-out times of sodium hypochlorite (NaOCl) and hypochlorous acid (HOCl) on dentin bond strength of one-step self-etch adhesives (1-SEAs). Human coronal dentin discs with a…
View details →Negative / Null Result ReportOpen accessDentistry
Katja Bächli, Patrick R. Schmidlin, Florian J. Wegehaupt et al. · 2019 · Materials
To assess the remineralizing potential of dentin matrix proteins and enamel matrix derivatives (DMPs and EMDs) after application on artificially induced dentin lesions, given the hypothesis that these materials increase the mineral uptake, binding, and mineralization. Forty-eight caries-free human premolars were used. Teeth were cut, polished, and embedded, leaving an open window on the root surface, of which one-third was covered with a flowable composite to preserve the healthy untreated dentin. Then, samples were demineralized in Buskes solution for 33 days. A micro-CT scan prior to treatme
View details →Negative / Null Result ReportOpen accessDentistry
Ignazio La Mantia, Claudio Andaloro, Pasquale Gianluca Albanese et al. · 2026 · EuroMediterranean Biomedical Journal
Allergic rhinitis is a common problem increasing greatly over the past three decades. Several studies have found a possible link between dyslipidem ia and allergic disease but the relating causal mechanisms remain elusive. The aim of this…
View details →Negative / Null Result ReportOpen accessDentistry
Gilliana Rozenblum, Karima Ait‐Aissa, G. E. D. Zahran et al. · 2025 · Alzheimer s & Dementia
Oral dysbiosis contributes to Alzheimer's disease (AD) by promoting neuroinflammation. Pathobionts such as Porphyromonas gingivalis, Treponema denticola, and Fusobacterium nucleatum release virulence factors that induce amyloid beta aggregation and tau hyperphosphorylation, while the loss of commensals like Streptococcus salivarius and Neisseria spp. impairs anti-inflammatory protection, worsening neuronal damage. P. gingivalis is strongly linked to an increased risk of AD, especially in individuals with systemic conditions like diabetes, hypertension, and chronic kidney disease. Its presence
View details →Negative / Null Result ReportOpen accessDentistry
Rafael Scaf de Molon, João Paulo Steffens, Érica Dorigatti de Ávila et al. · 2026 · Journal of Periodontal Research
Periodontitis is a chronic, host-mediated inflammatory disease in which microbial dysbiosis and dysregulated immune responses drive the destruction of tooth-supporting tissues. Although conventional therapy remains centered on mechanical biofilm control, persistent inflammation and alveolar bone loss in susceptible individuals underscore the need for adjunctive strategies. Translating preclinical discoveries into predictable clinical outcomes, however, remains a major challenge in periodontal research. This narrative review integrates two interrelated themes, translational research methodology
View details →Negative / Null Result ReportOpen accessDentistry
Chen Ding, Dize Li, Linzhu Su et al. · 2026 · International Journal of Oral Science
Nanotechnology has provided thousands of novel nano-antimicrobials possessing features uncommon in clinically available antimicrobials. Here, nanocarriers loaded with conventional antimicrobials and responding to environmental changes upon…
View details →Negative / Null Result ReportOpen accessDentistry
Naser Sargolzaie, Vahid Reza Askari, Maryam Najjar et al. · 2024 · Journal of Dental School
Objectives This study aimed to investigate the effect of propolis-based mouthwash on the gingival parameters of generalized chronic gingivitis cases in a randomized controlled clinical trial. Methods A total number of 69 patients with generalized chronic gingivitis were randomly assigned into three groups (N=23): propolis, chlorhexidine, or placebo mouthwash. The gingival and bleeding indices were evaluated before and after two weeks of mouthwash use. Data analyses were performed using Kruskal-Wallis test, one-way analysis of variance, and paired t-test at p<0 .05. Results The average gingival
View details →Negative / Null Result ReportOpen accessDentistry
Zahra Bahrololoomi, Farnaz Farahat, Shirin Pajouhande et al. · 2025 · Journal of Dental Materials and Techniques
Objective: Coronal restoration of pulpotomized primary molars plays a vital role in ensuring the long-term success of the treatment. This study aimed to evaluate the effect of fiber reinforcement on the fracture resistance of pulpotomized primary molars restored with flowable or paste bulk-fill composite resins in comparison to a conventional composite resin.Methods: In this in vitro experimental study, 48 primary molars were randomly allocated into six groups (n=8). The teeth were pulpotomozed and restored with the following materials: Group 1: Conventional composite resin, Group 2: Fiber+ co
View details →