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https://www.readbyqxmd.com/read/28918101/silver-diamine-fluoride-remineralized-artificial-incipient-caries-in-permanent-teeth-after-bacterial-ph-cycling-in-vitro
#1
Kulnipa Punyanirun, Thanida Yospiboonwong, Thansinee Kunapinun, Panida Thanyasrisung, Chutima Trairatvorakul
OBJECTIVES: To investigate the remineralizing effect of 38% silver diamine fluoride (SDF) application on enamel artificial caries in adjunct to 1000ppm fluoride toothpaste compared with fluoride toothpaste alone by analyzing the mineral density, depth of remineralization, and remineralization percentage of the lesions. METHODS: Eighteen artificial caries slabs were created from the proximal surfaces of nine chemically demineralized premolars. The slabs were scanned by Micro-Computed Tomography (Micro-CT) to determine the baseline mineral density of the initial lesions and randomly allocated into 2 groups...
September 13, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28918009/low-temperature-degradation-of-single-layers-of-multilayered-zirconia-in-comparison-to-conventional-unshaded-zirconia-phase-transformation-and-flexural-strength
#2
Sebastian Wille, Paul Zumstrull, Victor Kaidas, Lea Katharina Jessen, Matthias Kern
OBJECTIVES: The aim of this study was to evaluate the transformation of yttrium stabilized tetragonal zirconia (Y-TZP) to monoclinic phase and its change in flexural strength of the various layers of multilayered zirconia (enamel layer, transition layer 1, transition layer 2 and body layer) in comparison to two conventional zirconia ceramics. Additionally, the ball-on-three-balls test was compared with a conventional biaxial flexural strength test. METHODS: The crystallographic structure of the four layers of Katana Zirconia ML (Kuraray), e...
September 8, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28916162/fluoride-concentration-and-amount-of-dentifrice-influence-enamel-demineralization-in-situ
#3
M F Paiva, A C B Delbem, M Danelona, M E Nagata, F R N Moraes, G E G Coclete, R F Cunha, M A R Buzalaf, J P Pessan
OBJECTIVES: This study evaluated the effect of conventional (CD, 1100ppm F) and low-fluoride (LFD, 550ppm F) dentifrices, applied in different quantities, on enamel demineralization, and on fluoride (F) concentrations in the dental biofilm formed in situ. METHODS: Five combinations of dentifrices and quantities were tested: placebo (P-F-free) applied on all brush bristles; LFD applied by the transversal technique (0.3g-T1) or on all bristles (0.6g-T2); and CD applied in a pea-sized amount (0...
September 12, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28914255/microabrasion-remineralization-mab-re-an-innovative-approach-for-dental-fluorosis
#4
Anshula Neeraj Deshpande, Neelam Hasmukhbhi Joshi, Neha Rajesh Pradhan, Rameshwari Yahpal Raol
Enamel microabrasion is a noninvasive method that removes intrinsic and superficial defects from teeth aimed to improve dental esthetic with minimal loss of dental tissue. This case presentation describes the attempt for teeth color correction utilizing that conservative technique in a young girl whose maxillary anterior teeth presented an opaque white/brown stain. Along with microabrasion, an innovative approach of application of casein phosphopeptide-amorphous calcium phosphate crème on the tooth, and remineralization was carried out thereby reducing postoperative sensitivity of the treated tooth...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28914243/an-in-vitro-comparison-of-casein-phosphopeptide-amorphous-calcium-phosphate-paste-casein-phosphopeptide-amorphous-calcium-phosphate-paste-with-fluoride-and-casein-phosphopeptide-amorphous-calcium-phosphate-varnish-on-the-inhibition-of-demineralization-and-promotion
#5
Prachi Jayesh Thakkar, Chandrashekhar M Badakar, Shivayogi M Hugar, Seema Hallikerimath, Punit M Patel, Parin Shah
AIM: This study aims to determine and compare the extent of inhibition of demineralization and promotion of remineralization of permanent molar enamel with and without application of three remineralizing agents. MATERIALS AND METHODS: Forty extracted permanent molars were randomly divided into two groups 1 and 2, longitudinally sectioned into four and divided into subgroups A, B, C, and D. The sections were coated with nail varnish leaving a window of 3 mm × 3 mm...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28914241/validation-of-different-diagnostic-aids-in-detection-of-occlusal-caries-in-primary-molars-an-in-vitro-study
#6
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/28914067/-drugs-and-dosage-forms-as-risk-factors-for-dental-caries
#7
Petra Bořilová Linhartová, Lydie Izakovičová Hollá
Dental caries is a multifactorial disease which, despite a series of preventive measures, remains the most common infectious disease worldwide. Susceptibility or resistance to caries may be a result of the presence of risk or protective factors, genetic predisposition, inappropriate lifestyle associated with education, behavioural and socioeconomic factors. The aim of this review is to highlight the risks associated with the use of some drugs and dosage forms in relation to the formation and development of dental caries...
2017: Ceská a Slovenská Farmacie
https://www.readbyqxmd.com/read/28911219/abrasion-of-eroded-and-sound-enamel-by-a-dentifrice-containing-diamond-abrasive-particles
#8
Florian J. Wegehaupt, Vanessa G. M. Hoegger, Thomas Attin
Eroded enamel is more susceptible to abrasive wear than sound enamel. New toothpastes utilizing diamond particles as abrasives have been developed. The present study investigated the abrasive wear of eroded enamel by three commercially available toothpastes (one containing diamond particles) and compared it to the respective wear of sound enamel caused by these toothpastes. Seventy-two bovine enamel samples were randomly allocated to six groups (S1–S3 and E1–E3; n=12). Samples were submitted to an abrasive (S1–S3) or erosion plus abrasion (E1–E3) cycling...
July 24, 2017: Swiss Dental Journal
https://www.readbyqxmd.com/read/28906465/low-temperature-self-healing-of-a-microcapsule-type-protective-coating
#9
Dong-Min Kim, Yu-Jin Cho, Ju-Young Choi, Beom-Jun Kim, Seung-Won Jin, Chan-Moon Chung
Low-temperature self-healing capabilities are essential for self-healing materials exposed to cold environments. Although low-temperature self-healing concepts have been proposed, there has been no report of a microcapsule-type low-temperature self-healing system wherein the healing ability was demonstrated at low temperature. In this work, low-temperature self-healing of a microcapsule-type protective coating was demonstrated. This system employed silanol-terminated polydimethylsiloxane (STP) as a healing agent and dibutyltin dilaurate (DD) as a catalyst...
September 14, 2017: Materials
https://www.readbyqxmd.com/read/28906138/in-vivo-effect-of-antibacterial-and-fluoride-releasing-adhesives-on-enamel-demineralization-around-brackets-a-micro-ct-study
#10
Aslihan Zeynep Oz, Abdullah Alper Oz, Sabahat Yazıcıoglu
OBJECTIVES: The aim of this in vivo study was to investigate the preventive effect of two different adhesives on enamel demineralization and compare these adhesives with a conventional one. MATERIALS AND METHODS: Fifteen patients requiring the extraction of their first four premolars for orthodontic treatment were included in the study. One premolar was randomly selected, and an antibacterial monomer-containing and fluoride-releasing adhesive (Clearfil Protect Bond, Kuraray Medical, Okayama, Japan) was used for orthodontic bracket bonding...
September 14, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28904439/association-of-amelogenesis-imperfecta-and-bartter-s-syndrome
#11
A C V Kumar, V Alekya, M S V V Krishna, K Alekya, M Aruna, M H K Reddy, B Sangeetha, R Ram, V S Kumar
Bartter's syndrome is an autosomal recessive renal tubular disorder characterized by hypokalemia, hypochloremia, metabolic alkalosis, and hyperreninemia with normal blood pressure. Bartter's syndrome is associated with hypercalciuria and nephrocalcinosis. Amelogenesis imperfecta (AI) is a group of hereditary disorders that affect dental enamel. AI could be part of several syndromes. The enamel renal syndrome is the association of AI and nephrocalcinosis. We report two patients of AI with Bartter's syndrome.
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28904324/management-of-developmental-enamel-defects-in-the-primary-dentition
#12
Kanae Wada, Hanae Kanazawa, Mifune Kudo, Junko Kindaichi, Michiyo Miyashin
This study attempted to identify appropriate materials for restoration of enamel defects in the primary dentition, which were classified by severity and region with the modified developmental defects of enamel index. To identify the most appropriate materials, we used restorative materials to protect teeth and evaluated clinical outcomes of restoration. Three materials were used for restoration or repair after dislodgement of restorations. Our findings in this case suggest that, because of its durability and esthetic advantages, adhesive resin is beneficial for patients with enamel defects, particularly for restorations of less than two-thirds of the extent of the defect...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28904314/effects-of-tannin-fluoride-and-milk-fluoride-mixture-on-human-enamel-erosion-from-inappropriately-chlorinated-pool-water
#13
Sumalee Boonviriya, Sissada Tannukit, Suwanna Jitpukdeebodintra
This in vitro study aimed to investigate the efficacy of tannin-fluoride and milk-fluoride mixtures on human enamel erosion after exposure to inappropriately chlorinated pool water. Enamel specimens were immersed in swimming pool water (pH 2.7) for 30 min and in each test reagent for 4 min once a day for 60 consecutive days (group I: control, group II: tannin-fluoride, group III: milk-fluoride, group IV: tannin-fluoride before and milk-fluoride after erosive challenge, and group V: milk containing tannin-fluoride before and after erosive exposure)...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28902892/neanderthal-and-denisova-tooth-protein-variants-in-present-day-humans
#14
Clément Zanolli, Mathilde Hourset, Rémi Esclassan, Catherine Mollereau
Environment parameters, diet and genetic factors interact to shape tooth morphostructure. In the human lineage, archaic and modern hominins show differences in dental traits, including enamel thickness, but variability also exists among living populations. Several polymorphisms, in particular in the non-collagenous extracellular matrix proteins of the tooth hard tissues, like enamelin, are involved in dental structure variation and defects and may be associated with dental disorders or susceptibility to caries...
2017: PloS One
https://www.readbyqxmd.com/read/28902250/effect-of-cpp-acp-paste-with-and-without-co2-laser-irradiation-on-demineralized-enamel-microhardness-and-bracket-shear-bond-strength
#15
Nasrin Farhadian, Loghman Rezaei-Soufi, Seyed Farzad Jamalian, Maryam Farhadian, Shahrzad Tamasoki, Milad Malekshoar, Bahareh Javanshir
Introduction: Many patients seeking orthodontic treatment already have incipient enamel lesions and should be placed under preventive treatments. The aim of this in vitro study was to evaluate the effect of CPP-ACP paste and CO2 laser irradiation on demineralized enamel microhardness and shear bond strength of orthodontic brackets. Methods: Eighty caries-free human premolars were subjected to a demineralization challenge using Streptococcus mutans. After demineralization, the samples were randomly divided into five equal experimental groups: Group 1 (control), the brackets were bonded without any surface treatment; Group 2, the enamel surfaces were treated with CPP-ACP paste for 4 minutes before bonding; Group 3, the teeth were irradiated with CO2 laser beams at a wavelength of 10...
July 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28902242/polymerization-shrinkage-stress-of-composite-resins-and-resin-cements-what-do-we-need-to-know
#16
Carlos José Soares, André Luis Faria-E-Silva, Monise de Paula Rodrigues, Andomar Bruno Fernandes Vilela, Carmem Silvia Pfeifer, Daranee Tantbirojn, Antheunis Versluis
Polymerization shrinkage stress of resin-based materials have been related to several unwanted clinical consequences, such as enamel crack propagation, cusp deflection, marginal and internal gaps, and decreased bond strength. Despite the absence of strong evidence relating polymerization shrinkage to secondary caries or fracture of posterior teeth, shrinkage stress has been associated with post-operative sensitivity and marginal stain. The latter is often erroneously used as a criterion for replacement of composite restorations...
August 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28898732/poly-n-isopropylacrylamide-hydroxyapatite-nanocomposites-as-thermoresponsive-filling-materials-on-dentinal-surface-and-tubules
#17
Paolo Tempesti, Giovanni Simone Nicotera, Massimo Bonini, Emiliano Fratini, Piero Baglioni
HYPOTHESIS: Dental decay, asa consequence of exposure to acidic foods and drinks, represents one of the most important tooth pathologies. Recently, enamel and dentinal surface remineralization using hydroxyapatite nano- and microparticles has been proposed; however, commercial remineralizing toothpastes are quite expensive, mostly due to the high costs of hydroxyapatite. Hence, we propose a thermoresponsive hybrid nanocomposite material as filler for tooth defects. The use of thermoresponsive composite particles aims at filling exposed dentinal tubules in response to a change of temperature in the oral cavity...
September 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28898421/tooth-bleaching-with-low-temperature-plasma-lowers-surface-roughness-and-streptococcus-mutans-adhesion
#18
S-H Nam, S-M Ok, G-C Kim
AIM: To evaluate the structural-morphological changes in enamel surface roughness and Streptococcus mutans adhesion after tooth bleaching using plasma in combination with a low concentration of 15% carbamide peroxide (CP). METHODOLOGYS: Sixty pairs of premolars were randomly assigned to the treatment groups (n = 30; buccal surface, Groups 1A/2A) or controls (n = 30; palatal surface, Groups 1B/2B). Group 1A received a low concentration of 15% CP and low-temperature plasma...
September 12, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28895677/can-babies-oral-wipes-with-fluoride-and-or-calcium-glycerophosphate-prevent-cariogenic-demineralization-an-in-vitro-study
#19
Karla M Rezende, Juliana P Zuim, Thiago S Carvalho, Maria S Côrrea, Marcelo Bönecker
BACKGROUND: The difficulties in reaching a good level of oral hygiene in young babies can be partly overcome with the use of baby oral wipes, which have been shown to effectively remove plaque from deciduous teeth. The presence of fluoride and calcium in these wipes could also prevent further demineralisation of the teeth, as well as promote remineralisation. The aim of this study is, therefore, was to analyze the preventive effect of OW containing F and CaGP on cariogenic demineralization in vitro...
September 12, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28895192/prevalence-and-extent-of-enamel-defects-in-the-permanent-teeth-of-8-year-old-nigerian-children
#20
Olushola Ibiyemi, Fatemeh V Zohoori, Ruth A Valentine, Simon Kometa, Anne Maguire
OBJECTIVES: Enamel formation is a vulnerable developmental process, susceptible to environmental influences such as excessive systemic fluoride (F) exposure and infant/childhood disease. This study determined prevalence and extent of developmental enamel defects (DDE) and dental fluorosis in 8-year-old Nigerians and explored associations with key predictors. METHODS: A sample of 322 healthy 8-year-olds (155 males, 167 females) from primary schools in lower and higher water F areas of (i) rural and (ii) urban parts of Oyo State in south-west Nigeria (n = 4 areas) (in which the mean (SD) F concentration of community water supplies ranged from 0...
September 11, 2017: Community Dentistry and Oral Epidemiology
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