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https://www.readbyqxmd.com/read/27912821/clinical-and-molecular-perspectives-of-reparative-dentin-formation-lessons-learned-from-pulp-capping-materials-and-the-emerging-roles-of-calcium
#1
REVIEW
Minju Song, Bo Yu, Sol Kim, Marc Hayashi, Colby Smith, Suhjin Sohn, Euiseong Kim, James Lim, Richard G Stevenson, Reuben H Kim
The long-term use of calcium hydroxide and the recent increase in the use of hydraulic calcium-silicate cements as direct pulp-capping materials provide important clues in terms of how reparative dentin may be induced to form a "biological seal" to protect the underlying pulp tissues. In this review article, we discuss clinical and molecular perspectives of reparative dentin formation based on evidence learned from the use of these pulp-capping materials. We also discuss the emerging role of calcium as an odontoinductive component in these pulp-capping materials...
January 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/27900407/do-inhibitors-of-crystallisation-play-any-role-in-the-prevention-of-kidney-stones-a-critique
#2
REVIEW
William G Robertson
A critical examination of data in the literature and in as yet unpublished laboratory records on the possible role of so-called inhibitors of crystallisation in preventing the formation of calcium-containing kidney stones leads to the following conclusions. So-called inhibitors of spontaneous "self-nucleation" are unlikely to play any role in the initiation of the crystallisation of CaOx or CaP in urine because excessive urinary supersaturation of urine with respect to these salts dominates the onset of "self-nucleation" within the normal time frame of the transit of tubular fluid through the nephron (3-4 min)...
November 29, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27900248/treatment-of-cystic-lesion-of-mandible-using-combination-of-modified-bone-granules-and-calcium-phosphate-bone-cement-a-preliminary-report
#3
Richik Tripathi, Fahad M Samadi, Sanjeev Kumar
AIMS: This study was conducted to evaluate healing of bony cavity in mandible following enucleation of cystic lesion by obliterating the cavity using modified natural bone granules (G Graft) and calcium phosphate bone cement (G Bone). MATERIALS AND METHOD: In this technique, after enucleation of cystic lesion, peripheral ostectomy using No. 702 fissure bur and perforation of the inferior cortex using 1.5 mm drill bits were performed. Modified hydroxyapatite granules were used to fill the defect while calcium hydroxide bone cement was used to seal the cavity opening...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27892627/withdrawn-pulp-management-for-caries-in-adults-maintaining-pulp-vitality
#4
REVIEW
Hiroshi Miyashita, Helen V Worthington, Alison Qualtrough, Alphons Plasschaert
BACKGROUND: There is a range of treatment options for the management of the pulp in extensively decayed teeth. These include direct and indirect pulp capping, pulpotomy or pulpectomy. If the tooth is symptomatic or if there are periapical bone changes, then endodontic treatment is required. However, if the tooth is asymptomatic but the caries is extensive, there is no consensus as to the best method of management. In addition, there has been a recent move towards using alternative materials and methods such as the direct or indirect placement of bonding agents and mineral trioxide aggregate...
November 28, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27891629/capping-carious-exposures-in-adults-a-randomized-controlled-trial-investigating-mineral-trioxide-aggregate-versus-calcium-hydroxide
#5
R Kundzina, L Stangvaltaite, H M Eriksen, E Kerosuo
AIM: The aim of this multicentre, parallel-group randomized clinical trial was to compare the effectiveness of mineral trioxide aggregate (MTA) and a conventional calcium hydroxide liner (CH) as direct pulp capping materials in adult molars with carious pulpal exposure. METHODOLOGY: Seventy adults aged 18-55 years were randomly allocated to two parallel arms: MTA (White ProRoot, Dentsply, Tulsa Dental, Tulsa, OK, USA; n = 33) and CH (Dycal(®) , Dentsply DeTrey GmbH, Konstanz, Germany; n = 37)...
November 7, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27890906/accuracy-of-the-evaluation-method-for-alkaline-agents-bactericidal-efficacies-in-solid-and-the-required-time-of-bacterial-inactivation
#6
Hakimullah Hakim, Chiharu Toyofuku, Mari Ota, Mayuko Suzuki, Miyuki Komura, Masashi Yamada, Md Shahin Alam, Natthanan Sangsriratanakul, Dany Shoham, Kazuaki Takehara
An alkaline agent, namely food additive grade calcium hydroxide (FdCa(OH)2) in the powder form, was evaluated for its bactericidal efficacies in chicken feces at pH 13. The point for this evaluation was neutralization of the alkaline agent's pH at the time of bacterial recovery, since otherwise the results are substantially misleading. Without neutralization of the FdCa(OH)2 pH, the spiked bacteria were killed within min at the time of recovery in aqueous phase, but not in the solid form in feces, hence it has been demonstrated that when bacteria were in solid, it took longer time than in liquid for the alkaline agent to inactivate them down to the acceptable level (≥3 log10 CFU/ml)...
November 25, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27882250/apical-revascularization-after-delayed-tooth-replantation-an-unusual-case
#7
Marília Pacífico Lucisano, Paulo Nelson-Filho, Lea Assed Bezerra Silva, Raquel Assed Bezerra Silva, Fabricio Kitazono de Carvalho, Alexandra Mussolino de Queiroz
The aim of this paper is to present the clinical and radiological outcome of the treatment involving a delayed tooth replantation after an avulsed immature permanent incisor, with a follow-up of 1 year and 6 months. An 8-year-old boy was referred after dental trauma that occurred on the previous day. The permanent maxillary right central incisor (tooth 11) had been avulsed. The tooth was hand-held during endodontic therapy and an intracanal medication application with calcium hydroxide-based paste was performed...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27874916/treatment-options-for-permanent-teeth-with-deep-caries
#8
Monika Marending, Thomas Attin, Matthias Zehnder
The goal of this narrative review was to summarize and compare treatment options for permanent teeth carious lesions that are radiographically close to the pulp chamber. Thanks to adhesive restorative materials, minimally invasive approaches are possible. In this context, the old question arises as to whether caries must be excavated completely, i.e., down to hard dentin, or whether it could be advantageous to leave some soft dentin, or even merely seal the whole lesion. To answer this question, the microbiological aspects of the lesion must be considered, along with the immunological response in the dental pulp, with the concurrent possible negative outcomes for the patient...
2016: Swiss Dental Journal
https://www.readbyqxmd.com/read/27866468/intratubular-disinfection-with-tri-antibiotic-and-calcium-hydroxide-pastes
#9
Thais Cristina Pereira, Layla Reginna Silva Munhoz De Vasconcelos, Marcia Sirlene Zardin Graeff, Marco Antonio Hungaro Duarte, Clóvis Monteiro Bramante, Flaviana Bombarda De Andrade
OBJECTIVE: The aim of this study was to compare the in vitro intradentinal antimicrobial ability of the calcium hydroxide and tri-antibiotic pastes. MATERIALS AND METHODS: Standard bovine dentin tubes were sterilized and then infected with Enterococcus faecalis by a new contamination protocol of great depths of dentin. The specimens were filled with the medications, divided into two test-groups: calcium hydroxide (Group 1) and tri-antibiotic (Group 2) pastes. After 15 days, the teeth were evaluated by microbiological culture and confocal laser scanning microscopy (CLSM) with viability dye assay LIVE/DEAD inside dentinal tubules...
November 21, 2016: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/27862702/efficacy-of-xp-endo-finisher-and-trushape-3d-conforming-file-compared-to-conventional-and-ultrasonic-irrigation-in-removing-calcium-hydroxide
#10
Ahmet Demirhan Uygun, Eyüp Candaş Gündoğdu, Hakan Arslan, İbrahim Ersoy
The aim of this study was to compare the efficacy of the XP-endo Finisher and TRUShape 3D Conforming File to conventional and ultrasonic irrigation techniques for removing calcium hydroxide from artificially created grooves on root canals. The study used 32 human mandibular premolar teeth, which were decoronated and instrumented up to ProTaper Universal F5 (Dentsply Maillefer; Ballagiues, Switzerland). The teeth were split longitudinally, two standardised grooves were prepared in the apical and coronal portions and filled with calcium hydroxide...
November 12, 2016: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/27857773/a-case-report-of-delayed-repositioning-of-intruded-permanent-maxillary-central-incisors-accompanied-by-complicated-crown-fractures-a-2-year-follow-up
#11
Azade Rafiee, Hamid Moradian, Maryam Ayatollahi
Intrusive luxation is the most severe type of dental injury with a complex healing sequence. Pulp necrosis, root resorption (surface, inflammatory and replacement resorption), and defects in marginal periodontal bone healing are the main complications. Treatment strategies can be either active, by repositioning (surgical or orthodontic extrusion), or passive, by spontaneous re-eruption based on the thorough evaluation of the case. This paper reports a case of delayed repositioning of severely intruded permanent maxillary central incisors accompanied by complicated crown fractures after 3 months...
September 2016: Dental Research Journal
https://www.readbyqxmd.com/read/27857514/the-use-of-bioceramics-in-endodontics-literature-review
#12
REVIEW
Stefan Jitaru, Ioana Hodisan, Lucia Timis, Anamaria Lucian, Marius Bud
BACKGROUND AND AIM: Bioceramics are ceramic compounds obtained both in situ and in vivo, by various chemical processes. Bioceramics exhibit excellent biocompatibility due to their similarity with biological materials, like hydroxyapatite. Bioceramics and multi-substituted hydroxyapatite or similar compounds have the ability to induce a regenerative response in the organism. The aim of this paper is to make a literature review on the main bioceramic materials currently used in endodontics and on their specific characteristics...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27855929/physicochemical-properties-of-nixtamalized-corn-flours-with-and-without-germ
#13
Lineth J Vega Rojas, Isela Rojas Molina, Elsa Gutiérrez Cortez, Natalia Rincón Londoño, Andrés A Acosta Osorio, Alicia Del Real López, Mario E Rodríguez García
This research studied the influence of the germ components on the physicochemical properties of cooked corn and nixtamalized corn flours as a function of the calcium hydroxide content (from 0 to 2.1 w/w) and steeping time (between 0 and 9h). A linear relationship was found between calcium content in germ and steeping time used during nixtamalization process. X-ray diffraction analysis showed that calcium carbonate is formed into the germ structure to 2.1 w/w of calcium hydroxide and 9h steeping time. The presence of the germ improves the development of peak viscosity in flours, and it is related to the increases in calcium concentration in germ and the formation of amylose-lipid complexes...
April 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27847138/a-comparative-evaluation-of-the-effect-of-the-addition-of-pachymic-acid-on-the-cytotoxicity-of-4-different-root-canal-sealers-an-in%C3%A2-vitro-study
#14
Senthamilselvan Arun, Vidhya Sampath, Sekar Mahalaxmi, Kothandaraman Rajkumar
INTRODUCTION: Root canal sealers exhibit varying degrees of cytotoxicity to periapical tissues. This in turn results in inflammation, delayed wound healing, and even bone resorption. This study aimed to explore the effect of the addition of an antioxidant like pachymic acid on the cytotoxicity of 4 root canal sealers, namely, Tubliseal (Kerr, Romulus, MI), a zinc oxide eugenol-based sealer; AH Plus (Dentsply De Trey GmbH, Konstanz, Germany), an epoxy resin-based sealer; Sealapex (Kerr), a calcium hydroxide-based sealer; and EndoREZ (Ultradent Products, South Jordan, UT), a methacrylate resin-based sealer...
November 12, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27812619/exopolysaccharide-dispelled-by-calcium-hydroxide-with-volatile-vehicles-related-to-bactericidal-effect-for-root-canal-medication
#15
Lei Lei, Meiying Shao, Yan Yang, Mengying Mao, Yingming Yang, Tao Hu
Objective: Enterococcus faecalis is the dominant microbial species responsible for persistent apical periodontitis with ability to deeply penetrate into the dentin. Exopolysaccharides (EPS) contribute to the pathogenicity and antibiotic resistance of E. faecalis. Our aim was to investigate the antimicrobial activity of calcium hydroxide (CH), camphorated parachlorophenol (CMCP), and chlorhexidine (CHX) against E. faecalis in dentinal tubules. Material and Methods: Decoronated single-canal human teeth and semicylindrical dentin blocks were incubated with E...
September 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27803922/clinical-and-histological-evaluation-of-direct-pulp-capping-on-human-pulp-tissue-using-a-dentin-adhesive-system
#16
Alicja Nowicka, Ryta Łagocka, Mariusz Lipski, Mirosław Parafiniuk, Katarzyna Grocholewicz, Ewa Sobolewska, Agnieszka Witek, Jadwiga Buczkowska-Radlińska
Objective. This study presents a clinical and histological evaluation of human pulp tissue responses after direct capping using a new dentin adhesive system. Methods. Twenty-eight caries-free third molar teeth scheduled for extraction were evaluated. The pulps of 22 teeth were mechanically exposed and randomly assigned to 1 of 2 groups: Single Bond Universal or calcium hydroxide. Another group of 6 teeth acted as the intact control group. The periapical response was assayed, and a clinical examination was performed...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27802124/margin-integrity-and-secondary-caries-of-lined-or-non-lined-composite-and-glass-hybrid-restorations-after-selective-excavation-in-vitro
#17
F Schwendicke, Jlm Kniess, S Paris, U Blunck
OBJECTIVES: For deep carious lesions, selective carious tissue removal (leaving soft dentin close to the pulp) is suggested. Afterward, different restoration materials, such as resin composites or glass hybrids (GHs), can be placed. Many dentists also apply setting or non-setting calcium hydroxide liners before restoration. We compared margin integrity and susceptibility for secondary caries in differently restored premolars in vitro. METHODS: In 48 extracted human premolars, artificial residual lesions were induced on pulpo-axial walls of standardized cavities...
November 1, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27793479/investigation-on-the-potential-of-waste-cooking-oil-as-a-grinding-aid-in-portland-cement
#18
Haoxin Li, Jianfeng Zhao, Yuyan Huang, Zhengwu Jiang, Xiaojie Yang, Zhenghong Yang, Qing Chen
Although there are several methods for managing waste cooking oil (WCO), a significant result has not been achieved in China. A new method is required for safe WCO management that minimizes the environmental threat. In this context, this work was developed in which cement clinker and gypsum were interground with various WCOs, and their properties, such as grindability, water-cement ratio required to achieve a normal consistency, setting times, compressive strength, contents of calcium hydroxide and ettringite in the hardened paste, microstructure and economic and environmental considerations, were addressed in detail...
October 25, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27790570/antimicrobial-efficacy-of-contemporary-obturating-materials-used-in-primary-teeth-an-in-vitro-study
#19
Saumya Navit, Neha Jaiswal, Suleman Abbas Khan, Seema Malhotra, Anshul Sharma, Mukesh, Seema Jabeen, Gaurav Agarwal
INTRODUCTION: Preservation of primary tooth with non-vital pulp has been a major problem for pediatric dentist. In such cases, the preferred treatment modality is pulpectomy. The objective of pulpectomy is complete removal of necrotic and irreversibly infected pulp of an affected tooth but, in spite of chemomechanical preparation and copious irrigation of canal, there are chances of failure of pulp therapy due to the entrapped micro organisms in the canal space owing to the tortuous and complex nature of the root canal system and change in their morphology with root resorption...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27790252/antibacterial-efficacy-of-calcium-hydroxide-and-chlorhexidine-mixture-for-treatment-of-teeth-with-primary-endodontic-lesions-a-randomized-clinical-trial
#20
Zakiyeh Donyavi, Parastoo Ghahari, Mohammad Esmaeilzadeh, Mohammadjavad Kharazifard, Rasoul Yousefi-Mashouf
INTRODUCTION: This study compared the root canal microbial count of necrotic teeth after irrigation with 6% sodium hypochlorite (NaOCl) (single session treatment) and two-session root canal treatment with two-week application of calcium hydroxide (CH) mixed with 0.2% chlorhexidine (CHX) as intracanal medicament. METHODS AND MATERIALS: In this randomized clinical trial, single-rooted necrotic teeth were divided into two groups. Root canal was irrigated with 2 mL of 6% NaOCl in one group, and a mixture of 0...
2016: Iranian Endodontic Journal
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