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https://www.readbyqxmd.com/read/28101736/diagnostic-validity-of-icdas-and-diagnodent-combined-an-in-vitro-study-in-pre-cavitated-lesions
#1
José Enrique Iranzo-Cortés, Sofija Terzic, José María Montiel-Company, José Manuel Almerich-Silla
In a continuous process such as caries, it is important to possess criteria or instruments that allow the lesions to be diagnosed at early stages so that preventive or interceptive treatments can be applied before cavitation takes place. The present study seeks to assess the diagnostic efficacy of the International Caries Detection and Assessment System (ICDAS II) criteria and the DIAGNOdent laser fluorescence (LF) pen in occlusal caries lesions, using histological sections as the gold standard. Sixty-four permanent teeth were examined by two researchers who previously performed and calibrated both the ICDAS II criteria and the use of DIAGNOdent pen...
January 18, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28099873/antimicrobial-photodynamic-therapy-as-an-adjunct-for-treatment-of-deep-carious-lesions-a-systematic-review
#2
REVIEW
Fabian Cieplik, Wolfgang Buchalla, Elmar Hellwig, Ali Al-Ahmad, Karl-Anton Hiller, Tim Maisch, Lamprini Karygianni
For deep carious lesions, a more conservative treatment modality ("selective caries removal") has been proposed, where only the heavily contaminated dentine is removed. In this regard, effective adjuncts for cavity disinfection such as the antimicrobial photodynamic therapy (aPDT) can be valuable clinically prior to definitive restoration. Therefore, the aim of this study was to systematically assess clinical studies on the effectiveness of aPDT as a supplementary tool in the treatment of deep caries lesions...
January 15, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28076292/445-nm-diode-laser-assisted-debonding-of-self-ligating-ceramic-brackets
#3
Steffen Stein, Alexander Kleye, Michael Schauseil, Andreas Hellak, Heike Korbmacher-Steiner, Andreas Braun
OBJECTIVES: This study determined the influence of irradiation on aesthetic ceramic brackets with a novel 445-nm diode laser prior to debonding on the bracket failure mode. MATERIALS AND METHODS: Thirty ceramic brackets (In-Ovation® C, GAC) were standard-bonded to the oral and buccal planed and polished enamel surfaces of 15 caries-free human 3rd molars. Prior to study-blinded debonding, the brackets in the laser group were irradiated with the diode laser (SIROLaser Blue®, Sirona), while the irradiation was simulated within the conventional group...
January 11, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28043846/micro-filled-resin-infiltration-of-fissure-caries-lesions-in-vitro
#4
J Lausch, H Askar, S Paris, H Meyer-Lueckel
OBJECTIVES: The aim of this in vitro study was to evaluate three treatment modalities [infiltrant resin (IR), micro-filled infiltrant resin (MFIR), infiltrant-sealant-combination (ISC)] regarding both their abilities to penetrate lesions differing in ICDAS-codes and to fill fissures and cavities. MATERIALS AND METHODS: Extracted human molars (n=90) showing fissure caries lesions with and without cavitations were etched with 15% hydrochloric acid (HCl) that was mixed with abrasives and a 15% HCl-solution (1:1)...
December 30, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/28025444/histological-evaluation-of-three-techniques-for-caries-removal
#5
Etienne Medioni, Jean-Paul Rocca, Carlo Fornaini, Elisabetta Merigo
A number of concepts and devices have been proposed for caries removal. Among these, the Er:YAG laser is a potential alternative to conventional mechanical treatment. This study compared the effectiveness of the Er:YAG laser with that of low-speed rotary instruments for removal of carious tissue in 26 extracted human molars and premolars with severe decay (i.e., large occlusal or proximal decay but no pulpal contact). The teeth were divided into three groups of eight teeth, and two teeth were used as controls...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27994311/the-influence-of-the-lining-material-on-the-repair-of-the-infected-dentin-in-young-permanent-molars-after-restoration-a-randomized-clinical-trial
#6
Eunice Kuhn, Alessandra Reis, Ana Claudia Rodrigues Chibinski, Denise Stadler Wambier
AIM: This study evaluated the impact of liner material on the fluorescence, morphological and mineral characteristics of permanent carious dentin after cavity sealing. METHODS: Thirty children (11.0 ± 2.7 years old) presenting at least one active deep carious lesion in permanent molars were selected. Fragments of carious dentin were removed from teeth before lining the cavity (baseline samples) with high-viscosity glass ionomer cement (G1) or an inert material (wax - G2)...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27990188/application-of-laser-irradiation-for-restorative-treatments
#7
Amin Davoudi, Maryam Sanei, Hamid Badrian
Nowadays, lasers are widely used in many fields of medicine. Also, they can be applied at many branches of dental practice such as diagnosis, preventive procedures, restorative treatments, and endodontic therapies. Procedures like caries removal, re-mineralization, and vital pulp therapy are the most noticeable effects of laser irradiation which has gained much attention among clinicians. With controlled and appropriate wavelength, they can help stimulating dentinogenesis, controlling pulpal hemorrhage, sterilization, healing of collagenic proteins, formation of a fibrous matrix, and inducing hard tissue barrier...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27977815/a-prospective-clinical-and-radiographic-assessment-of-platform-switched-laser-microchannel-implants-placed-in-limited-interimplant-spaces
#8
Myron Nevins, Sonia Leziy, Eric Kerr, Ulrich Janke, Giulio Rasperini, James Hanratty, Kirk Pasquinelli, Tiziano Testori, Cary A Shapoff, David M Kim
This multicenter clinical trial of platform-switched laser-microchannel implants supports findings from a previous preclinical trial. Previous information indicated that an interimplant distance narrower than 3 mm would result in decrease in the crestal bone level, but the results of this investigation suggest that a more optimistic clinical result can be anticipated for implants and abutments with a laser-microchannel surface.
January 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27965635/photoinactivation-using-visible-light-plus-water-filtered-infrared-a-vis-wira-and-chlorine-e6-ce6-eradicates-planktonic-periodontal-pathogens-and-subgingival-biofilms
#9
Ali Al-Ahmad, Aleksander Walankiewicz, Elmar Hellwig, Marie Follo, Christian Tennert, Annette Wittmer, Lamprini Karygianni
Alternative treatment methods for pathogens and microbial biofilms are required due to the widespread rise in antibiotic resistance. Antimicrobial photodynamic therapy (aPDT) has recently gained attention as a novel method to eradicate pathogens. The aim of this study was to evaluate the antimicrobial effects of a novel aPDT method using visible light (vis) and water infiltrated infrared A (wIRA) in combination with chlorine e6 (Ce6) against different periodontal pathogens in planktonic form and within in situ subgingival oral biofilms...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27943658/objective-identification-of-dental-abnormalities-with-multispectral-fluorescence-imaging
#10
Surya Pratap Singh, Pauli Fält, Ishan Barman, Arto Koistinen, Ramachandra Rao Dasari, Arja M Kullaa
Sensitive methods that can enable early detection of dental diseases (caries and calculus) are desirable in clinical practice. Optical spectroscopic approaches have emerged as promising alternatives owing to their wealth of molecular information and lack of sample preparation requirements. In the present study, using multispectral fluorescence imaging, we have demonstrated that dental caries and calculus can be objectively identified on extracted tooth. Spectral differences among control, carious and calculus conditions were attributed to the porphyrin pigment content, which is a byproduct of bacterial metabolism...
December 12, 2016: Journal of Biophotonics
https://www.readbyqxmd.com/read/27853345/comparative-evaluation-of-microhardness-and-morphology-of-permanent-tooth-enamel-surface-after-laser-irradiation-and-fluoride-treatment-an-in-vitro-study
#11
Puneet Kumar, Mridula Goswami, Jatinder Kaur Dhillon, Ferah Rehman, Deepti Thakkar, Kusum Bharti
Background and aims: The aim of the study was to evaluate and compare the surface microhardness and surface morphology of permanent tooth enamel after Er,Cr:YSGG laser irradiation and Fluoride application. Materials and methods: One hundred and twenty premolars extracted for orthodontic purpose were used in the study and randomly divided into 6 groups. Group A was not subjected to any treatment. Group B was subjected to Er,Cr:YSGG laser irradiation. Group C was subjected to Er,Cr:YSGG laser irradiation followed by application of 2% NaF gel for 4 minutes...
October 1, 2016: Laser Therapy
https://www.readbyqxmd.com/read/27853108/efficacy-and-safety-of-a-therapeutic-apparatus-using-hydrogen-peroxide-photolysis-to-treat-dental-and-periodontal-infectious-diseases
#12
Hirohisa Sato, Yoshimi Niwano, Keisuke Nakamura, Takayuki Mokudai, Hiroyo Ikai, Taro Kanno, Hiroshi Egusa
The present study aimed to evaluate the acute locally injurious property of our most current hydroxyl radical generation system by hydrogen peroxide (H2O2) photolysis. This system, which releases 3% H2O2 with a 405-nm laser, was developed in our laboratory for the treatment of dental and periodontal infectious diseases. First, the hydroxyl radical yield generated by H2O2 photolysis was examined by applying an electron spin resonance-spin trapping technique. Second, the bactericidal effect of the device was examined under a simulant condition in which Streptococcus mutans, a pathogenic bacterial species that causes caries, was irrigated with running 3% H2O2 concomitantly with laser irradiation...
2016: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/27809872/pen-type-laser-fluorescence-device-versus-bitewing-radiographs-for-caries-detection-on-approximal-surfaces
#13
M Bizhang, N Wollenweber, P Singh-Hüsgen, G Danesh, S Zimmer
BACKGROUND: The accurate detection of approximal caries is generally difficult. The aim of this study was to assess the ability of the pen-type laser fluorescence device (LF pen) to detect approximal carious lesions in comparison to bitewing radiographs (BW). METHODS: Three hundred forty-one tooth surfaces were diagnosed in 20 patients with an average age of 26.70 (±2.82) years. Each test tooth was sequentially assessed by a single calibrated examiner using visual inspection, BW, and the LF pen...
November 4, 2016: Head & Face Medicine
https://www.readbyqxmd.com/read/27792279/laser-fluorescence-of-caries-detection-in-permanent-teeth-in-vitro-a-systematic-review-and-meta-analysis
#14
Maria Inês Rosa, Vilson Sampaio Schambeck, Eduardo Ronconi Dondossola, Maria Cecília Manenti Alexandre, Lisiane Tuon, Antonio Jose Grande, Fernando Hugo
BACKGROUND/OBJECTIVES: The detection of dental caries in the early stages, particularly on the occlusal surfaces, has become a mainstay of contemporary clinical practice. The objective of the study was to verify the accuracy of laser fluorescence (LF) for caries detection. METHODS: A comprehensive search of the MEDLINE (PubMed), EMBase, Cochrane Central Register of Controlled Trials, IBECS, BIOSIS, Web of Science, SCOPUS, Congress Abstracts and Grey literature databases was undertaken from 1980 through January 2016...
September 12, 2016: Journal of Evidence-based Medicine
https://www.readbyqxmd.com/read/27722059/microindentation-hardness-and-calcium-phosphorus-ratio-of-dentin-following-excavation-of-dental-caries-lesions-with-different-techniques
#15
Gunseli Katirci, R Banu Ermis
BACKGROUND: The aim of this in vitro study was to evaluate the microindentation hardness and chemical composition of residual dentin left at the cavity bottom following removal of carious dentin using the Carisolv chemomechanical and Er:YAG laser caries excavation methods in comparison with the conventional tungsten-carbide bur excavation. METHODS: Sixty-nine extracted permanent teeth with occlusal dentin caries were assigned into three groups according to caries removal technique...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27685314/effect-of-an-antibacterial-monomer-on-the-antibacterial-activity-of-a-pit-and-fissure-sealant
#16
Fan Yu, Haohan Yu, Pingting Lin, Yan Dong, Ling Zhang, Xiang Sun, Zhengya Liu, Huihui Guo, Li Huang, Jihua Chen
Resin-based pit-and-fissure sealants are often used to form a barrier on the occlusal surface of molars to treat caries lesions; however, bacteria can remain in the pit and fissures without detection, increasing the risk of secondary caries. Sealants with antimicrobial properties or microbial repellent actions might be advantageous. The aim of this study was to assess the inhibitory effect of a 2-methacryloxylethyl dodecyl methyl ammonium bromide (MAE-DB)-incorporated sealant against Streptococcus mutans. MAE-DB (4% wt) was incorporated into a commercially available sealant, Eco-S resin-based pit-and-fissure sealant (Vericom Co...
2016: PloS One
https://www.readbyqxmd.com/read/27666123/lasers-for-caries-removal-in-deciduous-and-permanent-teeth
#17
Alessandro Montedori, Iosief Abraha, Massimiliano Orso, Potito Giuseppe D'Errico, Stefano Pagano, Guido Lombardo
BACKGROUND: Despite considerable improvements in oral health, dental caries continue to be a public health issue. The most frequently used, and universally accepted technique, to remove caries is through mechanical ablation of decayed tissues by means of rotating drills (diamond or tungsten carbide, or both). In the past few decades, the introduction of adhesive filling materials (resin composites) has affected cavity filling procedures by reducing its retention needs, with advantages for dental tissue conservation...
September 26, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27641507/papain-gel-containing-methylene-blue-for-simultaneous-caries-removal-and-antimicrobial-photoinactivation-against-streptococcus-mutans-biofilms
#18
Zenildo Santos Silva, Ying-Ying Huang, Lucas Freitas de Freitas, Cristiane Miranda França, Sergio Brossi Botta, Patrícia Aparecida Ana, Raquel Agnelli Mesquita-Ferrari, Kristianne Porta Santos Fernandes, Alessandro Deana, Cintia Raquel Lima Leal, Renato Araujo Prates, Michael R Hamblin, Sandra Kalil Bussadori
This study intended to evaluate the effects of a papain-gel with a red-light absorbing pigment (methylene blue - MB) to mediate photodynamic therapy (PDT) against Streptococcus mutans biofilms. The PapaMBlue was compared with free MB to generate reactive oxygen species using fluorescence probes (SOSG and HPF). PDT (660-nm light) was carried out against S. mutans biofilms grown on either plastic dishes or on collagen membrane and assayed by CFU, live-dead staining using confocal microscopy, transmission electron microscopy and H&E staining for collagen films...
September 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27628409/sapphire-fiber-based-distributed-high-temperature-sensing-system
#19
Bo Liu, Zhihao Yu, Cary Hill, Yujie Cheng, Daniel Homa, Gary Pickrell, Anbo Wang
We present, for the first time to our knowledge, a sapphire-fiber-based distributed high-temperature sensing system based on a Raman distributed sensing technique. High peak power laser pulses at 532 nm were coupled into the sapphire fiber to generate the Raman signal. The returned Raman Stokes and anti-Stokes signals were measured in the time domain to determine the temperature distribution along the fiber. The sensor was demonstrated from room temperature up to 1200°C in which the average standard deviation is about 3...
September 15, 2016: Optics Letters
https://www.readbyqxmd.com/read/27599621/caries-resistant-bonding-layer-in-dentin
#20
Wei Zhou, Li-Na Niu, Lin Hu, Kai Jiao, Gang Chang, Li-Juan Shen, Franklin R Tay, Ji-Hua Chen
The present study examined the mechanism for caries resistance and the pulp responses in vital teeth following the use of the augmented-pressure adhesive displacement technique. Dentin adhesives were applied to the surface of sound dentin disks in 4 experimental groups: non-antibacterial adhesive and gentle adhesive displacement (N-G), non-antibacterial adhesive and augmented-pressure adhesive displacement (N-H), antibacterial adhesive and gentle adhesive displacement (A-G), antibacterial adhesive and augmented-pressure adhesive displacement (A-H)...
2016: Scientific Reports
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