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Calcium Hydroxide

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https://www.readbyqxmd.com/read/28435372/histologic-evaluation-of-the-effect-of-mineral-trioxide-aggregate-fillapex-as-a-root-canal-sealer-in-rat-teeth-submitted-to-late-replantation
#1
Manuel Marques Ferreira, Maria Filomena Botelho, Margarida Abrantes, Lina Carvalho, Eunice Carrilho
OBJECTIVE: This study aims to analyze the effect of new root canal based silicate cement, in rat teeth after late replantation, comparing with calcium hydroxide (CH) in preventing tooth root resorption. MATERIALS AND METHODS: The study group included 16 Wistar rats in which the upper right central incisors were extracted and were left on a worktable for 60 min, simulating a case of tooth avulsion, after had been anesthetized. One group, (Group I), the canals were filled with CH past, before replantation...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28435366/comparative-evaluation-of-antimicrobial-efficacy-of-triple-antibiotic-paste-calcium-hydroxide-and-a-proton-pump-inhibitor-against-resistant-root-canal-pathogens
#2
Shibha Mehta, Promila Verma, Aseem Prakash Tikku, Anil Chandra, Rhythm Bains, Gopa Banerjee
OBJECTIVE: The objective of this study is to compare the antimicrobial efficacy of triple antibiotic paste (TAP) and a proton pump inhibitor (PPI) (omeprazole) in combination with calcium hydroxide (CH) against Enterococcus faecalis and Candida albicans. MATERIALS AND METHODS: E. faecalis and C. albicans were subcultured and inoculated at 37° overnight and were treated with different dilutions of TAP, 25 μg/ml (Group 1), CH (Group 2, control), CH 16 mg/ml + omeprazole 2 mg/ml (Group 3a) (CH 16 mg/ml + omeprazole 4 mg)/ml (Group 3b) for 24, 48, and 72 h in sterile uncoated 96-well microtiter plates...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28422594/intentional-replantation-of-an-immature-incisor-with-a-transverse-root-fracture-and-endo-perio-condition-4-year-follow-up
#3
Atsushi Oishi
This case report describes the importance of continual examination for dental trauma and the efficacy of intentional replantation with retrograde root canal filling for a transverse root fracture in an immature incisor accompanied by subsequent periodontal-endodontic disease. In the treatment of traumatically fractured roots in immature incisors, continual examination is indispensable for the final diagnosis because roots in immature teeth are less calcified, resulting in less detailed radiological examinations...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28415532/preparation-of-micro-porous-bioceramic-containing-silicon-substituted-hydroxyapatite-and-beta-tricalcium-phosphate
#4
Lih-Jyh Fuh, Ya-Jing Huang, Wen-Cheng Chen, Dan-Jae Lin
Dimensional instability caused by sintering shrinkage is an inevitable drawback for conventional processing of hydroxyapatite (HA). A new preparation method for biphasic calcium phosphates was developed to increase micro pores and biodegradation without significant dimensional change. Powder pressed HA discs, under 100MPa, were immersed in a colloidal mixture of tetraethoxysilane (TEOS) and ammonium hydroxide for 10min, followed by drying, and then were sintered at 900°C, 1050°C, and 1200°C, respectively...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28403365/crown-discoloration-promoted-by-materials-used-in-regenerative-endodontic-procedures-and-effect-of-dental-bleaching-spectrophotometric-analysis
#5
Luciane Geanini Pena Dos Santos, Wilson Tadeu Felippe, Beatriz Dulcineia Mendes de Souza, Andrea Cristina Konrath, Mabel Mariela Rodríguez Cordeiro, Mara Cristina Santos Felippe
Objectives: To assess tooth crown's color after intracanal treatment with triple antibiotic paste (TAP) or calcium hydroxide (CH); cervical sealing with glass ionomer cement (GIC) or mineral trioxide aggregate (MTA); and bleaching with carbamide peroxide. Material and Methods: After pulp removal and color spectrophotometer measurement, 50 bovine incisors were divided into 4 experimental groups and one control (untreated). Experiments were performed in phases (Ph)...
March 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28390465/antibiofilm-activity-of-five-different-endodontic-filling-materials-used-in-primary-teeth-using-confocal-laser-scanning-microscopy
#6
Katerine Jahnecke Pilownic, Ceci Nunes Carvalho, Ana Regina Romano, Renata Dornelles Morgental, Ya Shen, Markus Haapasalo, Fernanda Geraldo Pappen
PURPOSE: The purpose of this study was to evaluate the effect of five endodontic materials for primary teeth on in vitro mixed-species biofilms. METHODS: Zinc oxide eugenol (ZOE) cement, Vitapex, Calen paste thickened with zinc oxide (ZO), pure calcium hydroxide (Ca(OH)2) paste, and iodoform were evaluated. Sterile water was used as a control. Mixed-species biofilm was incubated in anaerobic conditions for 21 days. The biofilm specimens were placed in contact with the endodontic materials for periods of seven and 30 days...
March 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/28390426/successful-treatment-of-early-allograft-dysfunction-with-cinacalcet-in-a-patient-with-nephrocalcinosis-caused-by-severe-hyperparathyroidism-a-case-report
#7
Boonyarit Cheunsuchon, Suchai Sritippayawan
BACKGROUND: Hyperparathyroidism is common in patients undergoing kidney transplantation. Occasionally, this condition can cause early allograft dysfunction by inducing calcium phosphate deposition in the allograft, which results in nephrocalcinosis. Although nephrocalcinosis occurs occasionally in kidney allografts, it has only rarely been reported in the literature. CASE PRESENTATION: Here, we present the case of a 58-year-old Thai woman with severe hyperparathyroidism who received a living-related kidney transplant from her 35-year-old son...
April 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28383147/radiopaque-images-resembling-obturated-root-canals
#8
Calvin Y Shiroma
The practice of endodontics, while not as common as today, was performed during the WWII era. Some of the materials used to fill canals during this time period include gutta-percha, calcium hydroxide, gold foil, and silver points. In this case study, fissures and fractures were present on the exposed root surfaces of the dental remains. Radiographs of the dental remains revealed canal systems similar to those obturated with a paste or semi-solid material. The root surface defects appear to be the access point for the radiopaque material...
April 6, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28377655/efficacy-of-various-intracanal-medicaments-in-human-primary-teeth-with-necrotic-pulp-against-candida-biofilms-an-in-vivo-study
#9
Jophie V Paikkatt, Sheela Sreedharan, Beena Philomina, V P Kannan, Madhu Santhakumar, Tv Anupam Kumar
BACKGROUND: Candida has been associated with cases of secondary and persistent root canal infections. The purpose of this study was to evaluate and compare the effectiveness of commonly used intracanal medicament against Candida biofilms found in root canals of human primary teeth with necrotic pulp. MATERIALS AND METHODS: Pulp canals of 45 single-rooted primary maxillary anterior teeth with pulp necrosis in 34 children were included in the study. They were divided into three groups of 15 samples each - group I: Ca(OH)2 (calcium hydroxide); group II: 1% chlorhexidine gel (CHX); and group III: 1% metronidazole gel...
January 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28377654/a-comparative-study-of-ion-diffusion-from-calcium-hydroxide-with-various-herbal-pastes-through-dentin
#10
Priyanka Dausage, Rajesh B Dhirawani, Jayant Marya, Vrinda Dhirawani, Vijayendra Kumar
AIM: The aim of this study was to evaluate the diffusion ability of ions through dentinal tubules of different nonalcoholic calcium hydroxide-containing herbal pastes and compare it with the calcium hydroxide paste prepared with saline. MATERIALS AND METHODS: A total of 36 single-rooted premolar teeth were used in this study. The tooth crowns were removed and the root canals were prepared. Depending on the vehicle to be used for preparing calcium hydroxide pastes, six groups were made: Group I: Ca(OH)2 saline paste (control group), group II: Ca(OH)2 papaya latex paste, group III: Ca(OH)2 coconut water paste, group IV: Ca(OH)2 Ashwagandha (Withania somnifera) paste, group V: Ca(OH)2 Tulsi (Ocimum tenuiflorum) paste, and group VI: Ca(OH)2 garlic (Allium sativum) paste...
January 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28377649/comparative-evaluation-of-clinical-and-radiographic-success-of-formocresol-propolis-turmeric-gel-and-calcium-hydroxide-on-pulpotomized-primary-molars-a-preliminary-study
#11
Shivayogi M Hugar, Pratibha Kukreja, Shweta S Hugar, Niraj Gokhale, Harsha Assudani
AIMS: Despite various advents in technology, the present era marks a shift to phytotherapeutics and alternative modalities to conventional endodontic treatments. Newer endodontic modalities have been developed inculcating the ancient system of medicine. The present study was done to compare and evaluate the clinical pulp response and radiographic signs after pulpotomy in four groups of primary molar teeth treated with formocresol (control), propolis extract, turmeric gel, and calcium hydroxide respectively...
January 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28364108/-bactericidal-effects-and-smear-layer-removal-of-er-yag-laser-radiation-against-enterococcus-faecalis-in-root-canals
#12
Zongbo Li, Changyun Fang
To evaluate the cleaning ability of Er:YAG laser against Enterococcus faecalis in root canals.
 Methods: The single-rooted human teeth were sterilized and inoculated with Enterococcus faecalis and were randomly assigned into 2 groups. A group of teeth was irrigated with saline during root canal preparation while another group with NaClO. After mechanical preparation, the two groups were randomly divided into 3 subgroups according to the different treatments: Samples, laser radiation, and calcium hydroxide intracanal medication for 7 days...
March 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28345049/biomimetic-mineral-self-organization-from-silica-rich-spring-waters
#13
Juan Manuel García-Ruiz, Elias Nakouzi, Electra Kotopoulou, Leonardo Tamborrino, Oliver Steinbock
Purely inorganic reactions of silica, metal carbonates, and metal hydroxides can produce self-organized complex structures that mimic the texture of biominerals, the morphology of primitive organisms, and that catalyze prebiotic reactions. To date, these fascinating structures have only been synthesized using model solutions. We report that mineral self-assembly can be also obtained from natural alkaline silica-rich water deriving from serpentinization. Specifically, we demonstrate three main types of mineral self-assembly: (i) nanocrystalline biomorphs of barium carbonate and silica, (ii) mesocrystals and crystal aggregates of calcium carbonate with complex biomimetic textures, and (iii) osmosis-driven metal silicate hydrate membranes that form compartmentalized, hollow structures...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28343596/no-additional-benefit-of-using-a-calcium-hydroxide-liner-during-stepwise-caries-removal-a-randomized-clinical-trial
#14
Maria Auxiliadora Pereira, Reginaldo Batista Dos Santos-Júnior, Johnny Alexandre Tavares, Alaíde Hermínia Oliveira, Pollyana Caldeira Leal, Wilton Mitsunari Takeshita, Antônio Márcio Barbosa-Júnior, Luiz Eduardo Braga Bertassoni, André Luis Faria-E-Silva
BACKGROUND: Clinicians often use calcium hydroxide liners during stepwise treatment of advanced caries. In this randomized clinical trial, the authors compared the short-term outcome of stepwise caries removal with and without use of a calcium hydroxide liner in conjunction with provisional resin-modified glass ionomer (RMGI) restorations. METHODS: The authors included in the trial 98 patients aged 15 to 30 years who had a deep carious lesion in a posterior tooth...
March 23, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28335281/study-on-utilization-of-carboxyl-group-decorated-carbon-nanotubes-and-carbonation-reaction-for-improving-strengths-and-microstructures-of-cement-paste
#15
Xiantong Yan, Hongzhi Cui, Qinghua Qin, Waiching Tang, Xiangming Zhou
Carbon nanotubes (CNTs) have excellent mechanical properties and can be used to reinforce cement-based materials. On the other hand, the reaction product of carbonation with hydroxides in hydrated cement paste can reduce the porosity of cement-based materials. In this study, a novel method to improve the strength of cement paste was developed through a synergy of carbon nanotubes decorated with carboxyl group and carbonation reactions. The experimental results showed that the carboxyl group (-COOH) of decorated carbon nanotubes and the surfactant can control the morphology of the calcium carbonate crystal of carbonation products in hydrated cement paste...
August 19, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28327693/single-versus-two-visits-with-1-week-intracanal-calcium-hydroxide-medication-for-endodontic-treatment-one-year-post-treatment-results-from-a-multicentre-randomised-controlled-trial
#16
Federica Fonzar, Aniello Mollo, Mauro Venturi, Pierpaolo Pini, Riccardo Fabian Fonzar, Anna Trullenque-Eriksson, Marco Esposito
PURPOSE: To evaluate whether it is more effective to complete endodontic treatment in a single visit or in two visits with 1-week intracanal calcium hydroxide medication in symptomatic teeth and teeth with periapical lesions. MATERIALS AND METHODS: One hundred and ninety-nine patients, with one symptomatic tooth or a tooth with a periapical lesion, were randomised, according to a parallel group design, to receive a complete endodontic treatment in a single visit (99 patients) or in two visits with 1-week intracanal calcium hydroxide medication (100 patients), at two centres...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28316920/measurement-of-ph-and-calcium-ions-release-from-different-calcium-hydroxide-pastes-at-different-intervals-of-time-atomic-spectrophotometric-analysis
#17
Pranab Misra, Rhythm Bains, Kapil Loomba, Abhinav Singh, V P Sharma, R C Murthy, Rakesh Kumar
AIM: To evaluate the effect of different vehicles on pH and release of calcium ions from calcium hydroxide (CH) paste from apical third of root canals. METHODS: 40 single rooted extracted human mandibular premolars were instrumented with RevoS files (MicroMega) up to ISO size 40. The teeth were divided into 4 groups on the basis of vehicle as follows: Group I - calcium hydroxide mixed with 2% chlorhexidine; Group II - calcium hydroxide mixed with propylene glycol; Group III - calcium hydroxide mixed with glycerine; and Control - calcium hydroxide mixed with double distilled water...
January 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28301017/intracanal-irrigating-solutions-prior-to-calcium-hydroxide-medication-and-its-effects-on-root-dentin-strength
#18
Leila Clarisse Hillesheim, Juliara Bellina Hoffmann, Daniela Peressoni Vieira Schuldt, Maybell Tedesco, Eduardo Antunes Bortoluzzi, Cleonice Silveira Teixeira
The aim of this study was to assess the effects of intracanal irrigation with sodium hypochlorite (NaOCl) and ethylenediaminetetracetic acid (EDTA) prior to calcium hydroxide medication on the compressive strength of root dentin. Forty-eight roots with single and straight canals were instrumented with a crown-down technique using Flexofile files and Gates Glidden burs, under 0.9% sodium chloride (NaCl) irrigation. Root canals were randomly separated into 4 groups (n=12), according to the irrigating solution: Control Group, 0...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28299554/comparison-of-different-techniques-for-removal-of-calcium-hydroxide-from-straight-root-canals-an-in-vitro-study
#19
Anne-Kathrin Pabel, Michael Hülsmann
To compare four different techniques for removal of calcium hydroxide from straight root canals. The present study used the design suggested by Lee et al. (Int Endod J 37:607-612, 32) and van der Sluis et al. (Int Endod J 40:52-57, 17). One-hundred and ten extracted human teeth with straight root canals were prepared to ISO-size 50 and split longitudinally. Two lateral grooves were prepared, filled with calcium hydroxide and the root halves reassembled in a muffle. Calcium hydroxide was removed using one of five techniques: (1) passive ultrasonic irrigation, (2) hydrodynamic irrigation using RinsEndo(®), (3) sonic irrigation using the EndoActivator(®), (4) motor-driven plastic brush (CanalBrush™), and (5) manual irrigation with a syringe as the control group...
March 15, 2017: Odontology
https://www.readbyqxmd.com/read/28294706/histopathological-microbiological-and-radiographic-analysis-of-antimicrobial-photodynamic-therapy-for-the-treatment-of-teeth-with-apical-periodontitis-a-study-in-rats-molars
#20
Alessandra Cesar Trindade, José Antônio Poli de Figueiredo, Sílvia Dias de Oliveira, Valdir Cristóvão Barth Junior, Stephanie Wagner Gallo, Carina Follmann, Carlos Frederico Brilhante Wolle, Liviu Steier, Renata Dornelles Morgental, João Batista Blessmann Weber
OBJECTIVE: The aim of this study was to evaluate in vivo, by histological and radiographic analysis, the response of apical tissues of rats' teeth with experimentally induced apical periodontitis, after one- and two-session endodontic treatment with and without photodynamic therapy (PDT). A microbiological analysis was also performed to verify bacterial reduction after each treatment. BACKGROUND DATA: Studies carried out in recent years highlighted the antibacterial potential of PDT when associated with conventional endodontic therapy in vitro...
March 9, 2017: Photomedicine and Laser Surgery
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