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https://www.readbyqxmd.com/read/29044355/the-effects-of-low-level-laser-irradiation-on-proliferation-of-human-dental-pulp-a-narrative-review
#1
S Staffoli, U Romeo, R N S Amorim, G Migliau, G Palaia, L Resende, A Polimeni
Mesenchymal stem cells (MSCs) have the capability for self-renewal, proliferation, and differentiation in various types of specialized cells, so they are very important in cellular therapies. MSC from dental pulp are simply obtainable and have high proliferative capability. Among the therapies that can stimulate the proliferation of certain cell types, low-level laser therapy (LLLT) stands out. The target of this study is to perform a literature review to investigate these effects of low-level laser irradiation on proliferation of human dental pulp...
September 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29042724/evaluation-of-bond-strength-between-grooved-titanium-alloy-implant-abutments-and-provisional-veneering-materials-after-surface-treatment-of-the-abutments-an-in-vitro-study
#2
Gowtham Venkat, Murugesan Krishnan, Suganya Srinivasan, Muthukumar Balasubramanian
INTRODUCTION: Titanium has become the material of choice with greater applications in dental implants. The success of the dental implant does not only depend on the integration of the implant to the bone but also on the function and longevity of the superstructure. The clinical condition that demands long-term interim prosthesis is challenging owing to the decreased bond between the abutment and the veneering material. Hence, various surface treatments are done on the abutments to increase the bond strength...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29039965/scanning-electron-microscope-comparative-surface-evaluation-of-glazed-lithium-disilicate-ceramics-under-different-irradiation-settings-of-nd-yag-and-er-yag-lasers
#3
Josko Viskic, Drazen Jokic, Suzana Jakovljevic, Lana Bergman, Sladana Milardovic Ortolan, Senka Mestrovic, Ketij Mehulic
OBJECTIVE: To evaluate the surface of glazed lithium disilicate dental ceramics after irradiation under different irradiation settings of Nd:YAG and Er:YAG lasers using a scanning electron microscope (SEM). MATERIALS AND METHODS: Three glazed-press lithium disilicate ceramic discs were treated with HF, Er:YAG, and Nd:YAG, respectively. The laser-setting variables tested were laser mode, repetition rate (Hz), power (W), time of exposure (seconds), and laser energy (mJ)...
October 17, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29033528/in-vitro-performance-of-diagnodent-laser-fluorescence-device-for-dental-calculus-detection-on-human-tooth-root-surfaces
#4
Thomas E Rams, Abdulaziz Y Alwaqyan
OBJECTIVE: This study assessed the reproducibility of a red diode laser device, and its capability to detect dental calculus in vitro on human tooth root surfaces. MATERIAL AND METHODS: On each of 50 extracted teeth, a calculus-positive and calculus-free root surface was evaluated by two independent examiners with a low-power indium gallium arsenide phosphide diode laser (DIAGNOdent) fitted with a periodontal probe-like sapphire tip and emitting visible red light at 655 nm wavelength...
October 2017: Saudi Dental Journal
https://www.readbyqxmd.com/read/29029752/low-level-laser-therapy-may-not-provide-any-benefit-in-preventing-and-minimizing-tooth-sensitivity-after-dental-bleaching
#5
Romina Brignardello-Petersen
No abstract text is available yet for this article.
October 9, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29024714/antibacterial-effect-and-bond-strength-of-a-modified-dental-adhesive-containing-the-peptide-nisin
#6
Meixuan Su, Shunyi Yao, Lisha Gu, Zihua Huang, Sui Mai
This study attempted to incorporate the antibacterial peptide nisin into an etch-and-rinse dental adhesive to evaluate the antibacterial activity of the modified adhesive against Streptococcus mutans and the bond strength. Single Bond 2 was used as a negative control, and nisin was incorporated at 1%, 3%, and 5% (w/v). The antibacterial activity against S. mutans was evaluated using the film contact test, the agar diffusion test, XTT assays and confocal laser scanning microscopy (CLSM). The microtensile bond strength (μTBS) of the modified dental adhesive was also evaluated...
October 9, 2017: Peptides
https://www.readbyqxmd.com/read/29016741/the-effect-of-low-level-laser-therapy-on-orthodontically-induced-root-resorption-a-pilot-double-blind-randomized-controlled-trial
#7
Doreen Ng, Ambrose K Chan, Alexandra K Papadopoulou, Oyku Dalci, Peter Petocz, Mehmet Ali Darendeliler
Background: The effect of low-level laser therapy (LLLT) on accelerating orthodontic tooth movement has been extensively studied; however, there is limited knowledge on the use of LLLT on orthodontic root resorption. Objective: To investigate the effect of LLLT on orthodontically induced inflammatory root resorption (OIIRR) and to compare the difference between pulsed and continuous LLLT on OIIRR. Trial design: Double-blind, single-centre 3-arm parallel split-mouth randomized controlled trial...
September 7, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28976050/assessment-of-the-test-retest-reliability-of-human-gingival-blood-flow-measurements-by-laser-speckle-contrast-imaging-in-a-healthy-cohort
#8
Eszter Molnár, Réka Fazekas, Zsolt Lohinai, Zsuzsanna Tóth, János Vág
OBJECTIVES: The reliability of gingival blood flow measured by Laser Speckle Contrast Imaging is unknown. Our aim was to investigate the effect of factors inherent in oral mucosa measurement on intra-day and inter-day reliability. METHODS: Gingival blood flow was measured in seventy healthy subjects. First, measurements were obtained by varying the incidence angle of imaging, using a lip retractor. Second, three snapshots were taken with closure of the mouth in-between and lips were retracted by a dental mirror...
October 4, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28972812/antimicrobial-effects-of-three-different-treatment-modalities-on-dental-implant-surfaces
#9
Olav Inge Larsen, Morten Enersen, Anne Karin Kristoffersen, Ann Wennerberg, Dagmar F Bunæs, Stein Atle Lie, Knut N Leknes
Resolution of peri-implant inflammation and re-osseointegration of peri-implantitis affected dental implants seem to be dependent on bacterial decontamination. The aims of the this study were to evaluate the antimicrobial effects of three different instrumentations on a micro-textured dental implant surface contaminated with an avirulent or a virulent Porphyromonas gingivalis strain and to determine alterations to the implant surface following instrumentation. Forty-five dental implants (Straumann SLA) were allocated to three treatment groups: Er:YAG laser, chitosan brush, and titanium curette (10 implants each), a positive (10 implants) and a negative (five implants) control...
October 3, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28967399/marginal-adaptation-and-cad-cam-technology-a-systematic-review-of-restorative-material-and-fabrication-techniques
#10
REVIEW
Sofia Papadiochou, Argirios L Pissiotis
STATEMENT OF PROBLEM: The comparative assessment of computer-aided design and computer-aided manufacturing (CAD-CAM) technology and other fabrication techniques pertaining to marginal adaptation should be documented. Limited evidence exists on the effect of restorative material on the performance of a CAD-CAM system relative to marginal adaptation. PURPOSE: The purpose of this systematic review was to investigate whether the marginal adaptation of CAD-CAM single crowns, fixed dental prostheses, and implant-retained fixed dental prostheses or their infrastructures differs from that obtained by other fabrication techniques using a similar restorative material and whether it depends on the type of restorative material...
September 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28965773/an-innovative-regenerative-endodontic-procedure-using-leukocyte-and-platelet-rich-fibrin-associated-with-apical-surgery-a%C3%A2-case%C3%A2-report
#11
Nelson Pinto, Alexandra Harnish, Carolina Cabrera, Catherine Andrade, Tony Druttman, Claudia Brizuela
Regenerative endodontic procedures (REPs) associated with apical surgery could represent an alternative treatment strategy for patients whose teeth present incomplete root formation and extensive apical lesions. Leukocyte platelet-rich fibrin (L-PRF) has potential benefits in REPs; it could promote apical root formation and optimal bone healing. The aim of this case report was to describe innovative regenerative endodontic therapy using L-PRF in the root canal and an extensive apical lesion in an immature tooth with dens invaginatus and asymptomatic apical periodontitis...
September 28, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28963589/influence-of-pre-irradiation-time-employed-in-antimicrobial-photodynamic-therapy-with-diode-laser
#12
Ana Caroline Fumes, Priscilla Coutinho Romualdo, Rachel Maciel Monteiro, Evandro Watanabe, Silmara Aparecida Milori Corona, Maria Cristina Borsatto
The aim of the present study was to evaluate, in vitro, the effect of different pre-irradiation times of the photosensitizer in photodynamic therapy in biofilms formed by Streptococcus mutans and Candida albicans, through the evaluation of the microbial load. The factors under study were as follows: times of pre-irradiation of the photosensitizer in three levels (1, 2, or 5 min). For the control of the cariogenic dental biofilm with antimicrobial photodynamic therapy (aPDT), methylene blue (0.01%) was used in association with the diode laser (InGaAlP) with a wavelength of 660 nm...
September 30, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28962664/a-new-concept-for-implant-borne-dental-rehabilitation-how-to-overcome-the-biological-weak-spot-of-conventional-dental-implants
#13
Nils-Claudius Gellrich, Björn Rahlf, Rüdiger Zimmerer, Philipp-Cornelius Pott, Majeed Rana
BACKGROUND: Every endosseous dental implant is dependent on an adequate amount and quality of peri-implant hard and soft tissues and their fully functional interaction. The dental implant could fail in cases of insufficient bone and soft tissues or due to a violation of the soft to hard tissues to implant shoulder interface with arising of a secondary bone loss. METHOD: To overcome this biological weak-spot, we designed a new implant that allows for multi vector endosseous anchorage around the individual underlying bone, which has to be scanned by computed tomography (CT) or Cone beam CT (CBCT) technique to allow for planning the implant...
September 29, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28929419/high-resolution-mr-imaging-for-dental-impressions-a-feasibility-study
#14
Julian Boldt, Kurt Rottner, Marc Schmitter, Andreas Hopfgartner, Peter Jakob, Ernst-Jürgen Richter, Olga Tymofiyeva
OBJECTIVES: Magnetic resonance imaging is an emerging technology in dental medicine. While low-resolution MRI has especially provided means to examine the temporomandibular joint due to its anatomic inaccessibility, it was the goal of this study to assess whether high-resolution MRI is capable of delivering a dataset sufficiently precise enough to serve as digital impression of human teeth. MATERIALS AND METHODS: An informed and consenting patient in need of dental restoration with fixed partial dentures was chosen as subject...
September 19, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28929117/histological-evidence-of-the-osseointegration-of-fractured-direct-metal-laser-sintering-implants-retrieved-after-5-years-of-function
#15
Francesco Mangano, Carlo Mangano, Adriano Piattelli, Giovanna Iezzi
BACKGROUND: Direct metal laser sintering (DMLS) is an additive manufacturing technique that allows the fabrication of dental implants layer by layer through the laser fusion of titanium microparticles. The surface of DMLS implants is characterized by a high open porosity with interconnected pores of different sizes; therefore, it has the potential to enhance and accelerate bone healing. To date, however, there are no histologic/histomorphometric studies in the literature evaluating the interface between bone and DMLS implants in the long-term...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28921849/effects-of-pre-surgical-nasoalveolar-moulding-on-maxillary-arch-and-nasal-form-in-unilateral-cleft-lip-and-palate-before-lip-surgery
#16
T Fuchigami, N Kimura, T Kibe, M Tezuka, M S Amir, H Suga, Y Takemoto, M Hashiguchi, A Maeda-Iino, N Nakamura
OBJECTIVES: To investigate the effects of pre-surgical nasoalveolar moulding (PNAM) on the maxillary arch and nasal form in patients with unilateral cleft lip and palate (UCLP). SETTING AND SAMPLE POPULATION: This is a retrospective case series study. The subjects were infants with complete UCLP who were treated with PNAM (n = 18) at Kagoshima University Medical and Dental Hospital (Japan) between 2006 and 2013. MATERIAL AND METHODS: Maxillary dental casts and facial photographs were taken at the time of the first visit and immediately prior to lip surgery to evaluate the maxillary arch and nasal form changes...
September 18, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28914241/validation-of-different-diagnostic-aids-in-detection-of-occlusal-caries-in-primary-molars-an-in-vitro-study
#17
G Shwetha, Prakash Chandra, Latha Anandakrishna, G Dhananjaya, Ashmitha K Shetty, Punitha S Kamath
AIM AND OBJECTIVE: To estimate the accuracy and assess the sensitivity and specificity of direct visual examination (DVE), computerized radiograph (VISTA SCAN mini), and DIAGNOdent (DD) for caries diagnosis in primary molars as compared to histological examination of the teeth. MATERIALS AND METHODS: An in vitro comparative study was carried out on 40 freshly extracted primary molars with questionable pit and fissures that yielded 89 examination sites. These samples were mounted on plaster and were subjected to examination methods for caries detection on the occlusal surface by two trained and calibrated examiners...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28912943/assessment-of-low-level-laser-therapy-effects-after-extraction-of-impacted-lower-third-molar-surgery
#18
Shahrokh Raiesian, Mehdi Khani, Kazem Khiabani, Ershad Hemmati, Mohammad Pouretezad
Introduction: The aim of this study was to assess the effect of low-level laser therapy (LLLT) on pain, swelling and maximum mouth opening in patients undergoing third molar surgery. Methods: A prospective, randomized double-blind study was undertaken on 44 patients at the Dental School, Ahvaz Jundishapur University of Medical Sciences, in 2015. A low-level laser was randomly applied on one of the two sides after surgery of 15 patients. The experimental side received 18 J/cm(2) of energy density, wavelength of 980 nm, and output power of 1...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/28892645/self-assembling-peptide-p11-4-and-fluoride-for-regenerating-enamel
#19
M Alkilzy, A Tarabaih, R M Santamaria, C H Splieth
Regenerative medicine-based approaches for caries treatment focus on biomimetic remineralization of initial carious lesions as a minimal invasive therapy. In vitro, self-assembling peptide P11-4 enhances remineralization of early carious lesions. To investigate the safety and clinical efficacy of P11-4 for treatment of initial caries, a randomized controlled single-blind study was conducted on children aged >5 y with visible active early caries on erupting permanent molars. Subjects were randomized to either the test group (P11-4 + fluoride varnish) or control group (fluoride varnish alone)...
September 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28890621/soft-tissue-applications-of-er-cr-ysgg-laser-in-pediatric-dentistry
#20
Gyanendra Kumar, Ferah Rehman, Vivek Chaturvedy
Soft tissue laser, such as diode and Nd:YAG lasers were initially used in soft tissue lesions because of its increased success rate. It was because of the fact that these lasers were well-absorbed by chromophores, such as hemoglobin and melanin which are found abundant in the oral mucosa. The introduction of erbium family in 1990 comprising the Er:YAG and Er,Cr:YSGG lasers made the hard tissue laser a boon for dentistry. Erbium, chromium-doped yttrium, scandium, gallium and garnet (Er,Cr:YSGG) was introduced in 1997 for the surgical needs of clinical dentistry in general practice...
April 2017: International Journal of Clinical Pediatric Dentistry
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