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https://www.readbyqxmd.com/read/28631418/the-effects-of-biodentine-polycaprolactone-3d-scaffold-with-odontogenesis-properties-on-human-dental-pulp-cells
#1
C-C Ho, H-Y Fang, B Wang, T-H Huang, M-Y Shie
AIM: To determine the feasibility of using three-dimensional printed Biodentine/polycaprolactone composite scaffolds for orthopaedic and dental applications. The physicochemical properties and the odontogenic differentiation of human dental pulp cells (hDPCs) were investigated. METHODOLOGY: Biodentine was well-suspended in ethanol and dropped slowly into molten polycaprolactone with vigorous stirring. The Biodentine/polycaprolactone composite scaffolds were then fabricated into controlled macropore sizes and structures using an extrusion-based three-dimensional (3D) printer...
June 20, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28628355/adjacent-dental-implants-classification-based-on-restorative-design
#2
Periklis Proussaefs, Abdulaziz AlHelal, Abdulrahman Taleb, Mathew Kattadiyil
There is controversy in the literature regarding the indicated retentive mechanism for implant supported crowns. When adjacent implants are restored, the restoration can be either screw retained, cement retained, or a combination of cement and screw retained. Adjacent implant supported crowns can be restored as individual implant supported crowns or they can be splinted. A classification system is proposed when adjacent implants are restored. The classification system describes currently available options to restore adjacent implants...
June 19, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28626888/clinical-and-radiographic-evaluation-of-early-loaded-narrow-diameter-implants-5-year-follow-up-of-a-multicenter-prospective-clinical-study
#3
Pablo Galindo-Moreno, Peter Nilsson, Paul King, Nils Worsaae, Alexander Schramm, Miguel Padial-Molina, Carlo Maiorana
OBJECTIVE: This study was initiated to evaluate the 5-year implant survival rate and marginal bone levels around a 3.0-mm implant when replacing a single tooth in the anterior region. MATERIALS AND METHODS: The study was designed as a prospective, single-arm, multicenter clinical study. Patients missing 12, 22, 32, 31, 41 or 42 teeth were included, and implants of 3.0 mm diameter and different lengths were placed by a one-stage surgery protocol. Definitive cemented crowns were placed 6-10 weeks later...
June 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28621273/choice-of-endodontic-fiber-posts-and-its-influence-on-dental-malpractice-an-in-vitro-evaluation
#4
Fouad Ayoub, Houssam Jassar, Hassan El Husseini, Ziad Salameh
AIMS AND OBJECTIVES: The fiber post type used in restoring endodontically treated teeth may affect the dental expert decision in the case of dental malpractice. The aim of this study was to evaluate the low-cost commercial fiber post in comparison with a higher cost or well-known documented fiber post system. MATERIALS AND METHODS: A total of 20 premolars were selected for the study; following endodontic treatment, specimens were randomly divided into two groups of 10 specimens each according to the type of fiber post used: (1) Low-cost commercial fiber post (OYAPost, Taper Lucent, OYARICOM) and (2) higher cost well-known fiber post (Rely X Fiber post, 3M ESPE)...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28616826/deposition-of-crystalline-hydroxyapatite-nano-particle-on-zirconia-ceramic-a-potential-solution-for-the-poor-bonding-characteristic-of-zirconia-ceramics-to-resin-cement
#5
Abbas Azari, Sakineh Nikzad, Arash Yazdani, Faezeh Atri, Abbas Fazel Anvari-Yazdi
The poor bonding strength of zirconia to different dental substrates is one of the challenging issues in restorative dentistry. Hydroxyapatite is an excellent biocompatible material with fine bonding properties. In this study, it was hypothesized that hydroxyapatite coating on zirconia would improve its bond strength. Forty-five zirconia blocks were prepared and randomly divided into three groups: hydroxyapatite coating, sandblasting, and no preparation (control). The blocks were bonded to cement and the micro-shear bond strength was measured following load application...
July 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28574112/evaluation-of-color-changes-of-dental-luting-materials-in-food-colorant-solutions
#6
Canan Akay, Merve Ç Tanış
BACKGROUND: The purpose of this study was to compare the color stability and water absorption of 3 commercially available resin cements in vitro by storing them in 0.15% erythrosine, dark brown and sunset yellow for 30 days. METHODS: 2 self-adhesive resin cement and 1 dual/light curing, resin-based dental luting material were evaluated (total 120 samples). The CIE L, a, b of 10 mm diameter-2.0 mm height disk shaped samples was measured using a spectrophotometer for color stability on a white background, 10 mm diameter-1...
May 24, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28571484/sclerostin-deficiency-promotes-reparative-dentinogenesis
#7
A-M Collignon, N Amri, J Lesieur, J Sadoine, S Ribes, S Menashi, S Simon, A Berdal, G Y Rochefort, C Chaussain, C Gaucher
In humans, the SOST gene encodes sclerostin, an inhibitor of bone growth and remodeling, which also negatively regulates the bone repair process. Sclerostin has also been implicated in tooth formation, but its potential role in pulp healing remains unknown. The aim of this study was to explore the role of sclerostin in reparative dentinogenesis using Sost knockout mice ( Sost(-/-)). The pulps of the first maxillary molars were mechanically exposed in 3-mo-old Sost(-/-) and wild-type (WT) mice ( n = 14 mice per group), capped with mineral trioxide aggregate cement, and the cavities were filled with a bonded composite resin...
March 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28571275/in-vitro-cytotoxicity-evaluation-of-novel-nano-hydroxyapatite-silica-incorporated-glass-ionomer-cement
#8
Tahir Yusuf Noorani, Norhayati Luddin, Ismail Ab Rahman, Saman Malik Masudi
INTRODUCTION: Glass Ionomer Cements (GIC) are among the most popular restorative materials, but their use in dentistry is limited due to their physical properties. The hardness of GIC was improved by incorporation of nano-hydroxyapatite-silica into GIC, to expand its applicability. AIM: To evaluate the cytotoxic effects of nano-hydroxyapatite-silica incorporated glass ionomer cement (HA-SiO2-GIC) on human Dental Pulp Stem Cells (DPSC) and compare it with conventional GIC and resin modified GIC...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571260/anxiety-levels-among-five-year-old-children-undergoing-art-restoration-a-cross-sectional-study
#9
Ishan, K K Shivlingesh, Vartika Agarwal, Bhuvan Deep Gupta, Richa Anand, Abhinav Sharma, Sumedha Kushwaha, Khateeb Khan
INTRODUCTION: Atraumatic Restorative Treatment (ART) involves manually excavating the carious part of the tooth and restoring the prepared cavity with chemically adhesive restorative material [Glass Ionomer Cement (GIC)] and it may induce and/or impact the dental anxiety in children. It is well established that ART procedure is less anxiety producing when compared with other restorative procedures using dental drill. AIM: The aim of this study was to evaluate the anxiety levels among five-year-old children undergoing ART restoration in I...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28570003/age-of-onset-of-disease-in-subjects-with-severe-periodontitis-a-9-to-34-year-retrospective-study
#10
Sara Thorbert-Mros, Björn Cassel, Tord Berglundh
AIM: The aim was to retrospectively assess the age of onset of disease in a group of patients, 30-45 years of age, diagnosed with severe, generalized periodontitis. MATERIAL & METHODS: 74 patients agreed to be part of the study. Patient files and radiographs of 42 patients were retrieved from >80 private and public dental clinics. Interproximal sites in radiographs presenting with identifiable cement-enamel junction (CEJ) and alveolar bone crest (BC) were analyzed...
June 1, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28567141/reproducibility-of-a-digital-method-to-evaluate-soft-tissue-modifications-a-study-of-inter-and-intra-operative-measurement-concordance
#11
Davide Rancitelli, Marco Cicciù, Francesco Lini, Davide Fumagalli, Anna Chiara Frigo, Carlo Maiorana
BACKGROUND: The soft tissue healing and quality around dental implant is a current debated topic in the recent literature. The free gingival margin and the quantity and quality of the mucosa around teeth and surrounding dental implants still determine the hard and soft tissue healing status. OBJECTIVE: The aim of this study is to assess inter and intra-operative measurement concordance of a method aimed at evaluating the apico-coronal migration of free gingival margin, using intra-oral photography...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28566878/consequences-of-facial-hemangioma-with-regard-to-dental-treatment
#12
Gabriela Cristina Santin, Késsia Suênia Fidelis de Mesquita Guimarães, Sara Silva de Oliveira, Raquel Assed Bezerra da Silva, Paulo Nelson-Filho, Regina Guenka Palma-Dibb, Alexandra Mussolino de Queiroz
Hemangioma is a benign vascular tumor that affects 3%-10% of the population and usually does not require specific treatment due to spontaneous regression. The purpose of this paper is to present a case report of a child having been born prematurely and diagnosed with hemangioma in the head and neck, emphasizing the dentofacial changes and treatment used to provide care. Severe fibrous scars were found in the perioral region and below the ear that limited the patient's ability to open her mouth. The child exhibited anterior open bite as well as dental caries in the lower jaw, hypomineralization, and enamel hypoplasia...
January 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28566673/resin-adhesion-strengths-to-zirconia-ceramics-after-primer-treatment-with-silane-coupling-monomer-or-oligomer
#13
Masahiro Okada, Kazusa Inoue, Masao Irie, Hiroaki Taketa, Yasuhiro Torii, Takuya Matsumoto
Resin bonding to zirconia ceramics is difficult to achieve using the standard methods for conventional silica-based dental ceramics, which employ silane coupling monomers as primers. The hypothesis in this study was that a silane coupling oligomer -a condensed product of silane coupling monomers- would be a more suitable primer for zirconia. To prove this hypothesis, the shear bond strengths between a composite resin and zirconia were compared after applying either a silane coupling monomer or oligomer. The shear bond strength increased after applying a non-activated ethanol solution of the silane coupling oligomer compared with that achieved when applying the monomer...
May 30, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28561919/current-trends-and-future-perspectives-of-dental-pulp-capping-materials-a-systematic-review
#14
REVIEW
Wellington L O da Rosa, Alexandra R Cocco, Tiago M da Silva, Luana C Mesquita, Arthur Dias Galarça, Adriana F da Silva, Evandro Piva
To systematically review the literature to analyze the current trends and future perspectives of dental pulp capping materials through an analysis of scientific and technological data. This study is reported in accordance with the PRISMA Statement. Nine databases were screened: PubMed (MedLine), Lilacs, IBECS, BBO, Web of Science, Scopus, SciELO, Google Scholar, and The Cochrane Library. Additionally, the following patent applications were searched online in Questel Orbit (Paris, France), USPTO, EPO, JPO, INPI, and Patentscope databases...
May 31, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28556432/randomized-controlled-clinical-trial-comparing-one-piece-and-two-piece-dental-implants-supporting-fixed-and-removable-dental-prostheses-4-to-6-year-observations
#15
Felix B Gamper, Goran I Benic, Ignacio Sanz-Martin, Asgeir G Asgeirsson, Christoph H F Hämmerle, Daniel S Thoma
OBJECTIVES: To test whether or not a one- (S1) and a two-piece (S2) dental implant systems render the same biological, technical, and esthetic outcomes regarding implants and implant-supported reconstructions over an observation period of 4 to 6 years. MATERIALS AND METHODS: Sixty patients were randomly assigned to receive S1 or S2 implants. The implants were restored with either fixed or removable prostheses. The insertion of the final reconstruction was chosen as baseline...
May 29, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28552289/influence-of-space-size-of-abutment-screw-access-channel-on-the-amount-of-extruded-excess-cement-and-marginal-accuracy-of-cement-retained-single-implant-restorations
#16
Mohammad D Al Amri, Sulieman S Al-Johany, Mohammed N Al-Qarni, Ahmed S Al-Bakri, Nassr S Al-Maflehi, Haythem S Abualsaud
STATEMENT OF PROBLEM: The detrimental effect of extruded excess cement on peri-implant tissue has been well documented. Although several techniques have been proposed to reduce this effect by decreasing the amount of extruded cement, how the space size of the abutment screw access channel (SAC) affects the amount of extruded cement and marginal accuracy is unclear. PURPOSE: The purpose of this in vitro study was to evaluate the effect of the size of the unfilled space of the abutment SAC on the amount of extruded excess cement and the marginal accuracy of zirconia copings...
May 26, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28540090/orthodontic-intervention-to-impacted-and-transposed-lower-canines
#17
Nihat Kılıç, Hüsamettin Oktay
Impacted and transposed teeth cause serious difficulties in tooth eruption and movement as well as esthetic and functional outcomes. Proper treatment planning including good biomechanical control is essential in order to avoid side effects during traction and aligning of the impacted and/or transposed teeth. The purpose of the present study was to present a successfully treated female patient having transposed and impacted lower canines by means of a modified lingual arch and fixed orthodontic appliance. A female patient aged 13 years and 9 months presented to the orthodontic department with a chief compliant of bilateral spacing and missing teeth in mandibular dentition...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28536026/nanochitosan-modified-glass-ionomer-cement-with-enhanced-mechanical-properties-and-fluoride-release
#18
R Senthil Kumar, N Ravikumar, S Kavitha, S Mahalaxmi, R Jayasree, T S Sampath Kumar, M Haneesh
Conventional glass-ionomer cements (GIC) are one of the most prevalent dental restorative materials, but their use is limited by their relatively low mechanical strength. Efforts have been made to improve the mechanical properties by addition of various fillers of which nano-sized particles appears to be a promising strategy. In the current study, effect of addition of nanochitosan particles in GIC (NCH-GIC) on compressive strength, flexural strength, wear resistance and fluoride release has been evaluated and compared with conventional GIC (C-GIC)...
May 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28535954/sol-gel-derived-bioactive-glass-nanoparticle-incorporated-glass-ionomer-cement-with-or-without-chitosan-for-enhanced-mechanical-and-biomineralization-properties
#19
Dong-Ae Kim, Jung-Hwan Lee, Soo-Kyung Jun, Hae-Won Kim, Mohamed Eltohamy, Hae-Hyoung Lee
OBJECTIVE: This study investigated the mechanical and in vitro biological properties (in immortalized human dental pulp stem cells (ihDPSCs)) of bioactive glass nanoparticle (BGN)-incorporated glass ionomer cement (GIC) with or without chitosan as a binder. METHODS: After the BGNs were synthesized and characterized, three experimental GICs and a control (conventional GIC) that differed in the additive incorporated into a commercial GIC liquid (Hy-bond, Shofu, Japan) were produced: BG5 (5wt% of BGNs), CL0...
May 20, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28529868/bone-inflammation-bone-infection-and-dental-implants-failure-histological-and-cytological-aspects-related-to-cement-excess
#20
Marco Tatullo, Massimo Marrelli, Filiberto Mastrangelo, Enrico Gherlone
Background: Dental implant failure can recognize several causes and many of them are quite preventable with the right knowledge of some clinical critical factors. Aim of this paper is to investigate about the histological aspects related to dental implants failure in such cases related to cement excess, how such histological picture can increase the risk of bacterial infections and how the different type of cement can interact with osteoblasts in-vitro. Methods: We randomly selected 5 patients with a diagnosis of dental implant failure requiring to be surgically removed: in all patients was observed an excess of dental cement around the failed implants...
2017: Journal of bone and joint infection
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