Relevant bibliographies by topics / Cementum ; Dentin ; Teeth – Roots – Permeability

Academic literature on the topic 'Cementum ; Dentin ; Teeth – Roots – Permeability'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Cementum ; Dentin ; Teeth – Roots – Permeability"

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Oliveira, Fabrício S., Leandro L. Martins, Júlio C. Canola, Paulo T. Oliveira, Jesus D. Pécora, and Ana P. Pauloni. "Macroscopic description of teeth of Azara's agouti (Dasyprocta azarae)." Pesquisa Veterinária Brasileira 32, no. 1 (January 2012): 93–95. http://dx.doi.org/10.1590/s0100-736x2012000100015.

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The teeth of Azara's agouti (Dasyprocta azarae) were described macroscopically in order to provide biological data on one of the largest wild rodents of the Americas. Radiography was taken on six heads and the teeth were described. Enamel surrounds the coronal dentin, projects to the roots and is present as parallel inner laminae in buccolingual direction. The dentin is located among the enamel laminae and surrounds the pulp horns. The cementum is located internally to the enamel laminae. On the lingual surface, the cementum and dentin are the outer elements.
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Chersoni, S., G. L. Acquaviva, C. Prati, M. Ferrari, S. Grandini, D. H. Pashley, and F. R. Tay. "In vivo Fluid Movement through Dentin Adhesives in Endodontically Treated Teeth." Journal of Dental Research 84, no. 3 (March 2005): 223–27. http://dx.doi.org/10.1177/154405910508400303.

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Fluid transudation through simplified dentin adhesives can occur in bonded vital crown dentin, since these adhesives behave as permeable membranes after polymerization. The effect of adhesive permeability in endodontically treated teeth is unknown. This study examined the hypothesis that in vivo fluid movement through simplified adhesives occurs when they are applied to root canals. Dowel spaces were prepared in endodontically treated teeth with single root canals. Six adhesives were applied to the intra-radicular dentin of canal walls. Impressions were obtained with polyvinyl siloxane, and replicas were fabricated with the use of polyether impression material. Replica hemisections were gold-coated for SEM examination. Fluid transudation was evident on the adhesive surfaces of all simplified total-etch and self-etch adhesives. Conversely, most of the specimens bonded with the control three-step total-etch adhesive were devoid of fluid droplets. Permeability of simplified adhesives results in water movement, even in root-treated dentin. This may adversely affect the coupling of auto-/dual-cured resin cements.
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Ribeiro, Rodrigo Gonçalves, Melissa Andreia Marchesan, Ricardo Gariba Silva, Manoel D. Sousa-Neto, and Jesus Djalma Pécora. "Dentin permeability of the apical third in different groups of teeth." Brazilian Dental Journal 21, no. 3 (2010): 216–19. http://dx.doi.org/10.1590/s0103-64402010000300007.

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This ex vivo study evaluated dentin permeability of the root canal in the apical third of different human groups of teeth. Eighty teeth were used, 8 from each dental group: maxillary and mandibular central incisors, lateral incisors and canines, maxillary first premolars (buccal and palatal roots), mandibular first premolars, and maxillary and mandibular second premolars, totalizing 88 roots that were distributed in 11 groups. The root canals were instrumented, irrigated with 1% NaOCl and 15% EDTA. Roots were immersed in 10% copper sulfate for 30 min and then in 1% rubeanic acid alcohol solution for the same period; this chemical reaction reveals dentin permeability by the formation of copper rubeanate, which is a dark-colored compound. Semi-serial 100-µm-thick cross-sections were obtained from the apical third of the roots. Five sections of each apical third were washed, dehydrated, cleared and mounted on glass slides for examination under optical microscopy. The percentage of copper ion infiltration and the amount of tubular dentin were quantified by morphometric analysis. The penetration of copper ions in the apical third ranged from 4.60 to 16.66%. The mandibular central and lateral incisors presented the highest dentin permeability (16.66%), while the maxillary canines and mandibular second and first premolars presented the lowest dentin permeability (4.60%, 4.80% and 5.71%, respectively; p<0.001). The other teeth presented intermediate permeability. In conclusion, dye penetration into dentin tubules at the apical region is strongly dependent on the group of teeth evaluated.
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Byers, M. R., and A. Sugaya. "Odontoblast processes in dentin revealed by fluorescent Di-I." Journal of Histochemistry & Cytochemistry 43, no. 2 (February 1995): 159–68. http://dx.doi.org/10.1177/43.2.7529786.

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There has been controversy about the length and structure of the odontoblast process within dentin since the earliest histologic studies of teeth. Our objective was to use the fluorescent carbocyanine dye Di-I combined with a new gelatin embedment procedure and confocal microscopy to determine the structure and extent of odontoblast processes in developing and mature rat teeth, injured rat molars, reparative dentin, and adult monkey teeth. We found that odontoblast processes do not extend into outer dentin or to the dentin-enamel junction except during early stages of development. Those in innervated regions of crown are long and straight, whereas those in roots are extensively branched and shorter. Cavity injury to crown dentin caused odontoblast fragments to be aspirated into outer dentin. In reparative dentin the odontoblast processes were branched and similar to those in roots. We used photoconversion and electron microscopy to show that Di-I fills the entire odontoblast after gelatin embedment, including the cytoplasm. This is a different type of carbocyanine staining from any previously reported, and it also stains other cells in adjacent hard tissues such as bone and cementum. The Di-I-gelatin method is a new way to use carbocyanine dyes. It has enabled us to solve a long-standing controversy about the histology of teeth, and it should be useful for many other studies of cell structure.
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Amro, Soliman O., Hisham I. Othman, and Mohammed S. Al Zahrani. "Microanalysis of Root Cementum in Patients with Aggressive Periodontitis." Journal of King Abdulaziz University - Medical Sciences 23, no. 1 (March 31, 2016): 9–17. http://dx.doi.org/10.4197/med.23-1.2.

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The purpose of this study was to evaluate the microanalysis of various elements, and assess the surface characteristics of aggressive periodontally diseased roots in comparison to sound root surface. Fifty teeth were collected: 25 from patients with aggressive periodontitis, and 25 teeth from healthy patients. Measurements of probing depth and clinical attachment loss were taken prior to extractions. Healthy and diseased root cementum were evaluated by scanning electron microscopy and energy dispersive X-ray spectroscopy. The collected data were statistically evaluated using t-test. The level of significance was set at p < 0.001. The results of this study showed a significant decrease in the calcium and phosphate contents along the entire root cementum of the aggressive periodontitis and a significant increase in the magnesium and sulphur of the same root in comparison to the control group. In addition, there were remarkable destructions of cementum, crack lines and deep cavities reaching to the underlying dentin. In conclusion, the alteration in cementum structures and composition due to aggressive periodontitis might have an important implication on periodontal therapy. The influence of alteration of cementum.
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Basudan, Thuraya Abdulrahim, Ghaida Mazen Zagzoog, Waad Amer Alshehri, Abdullah Hassan Alammari, Khaled Abid Althaqafi, Zahrah Ali Alamri, Nada Ibrahim Alzurqi, et al. "Role of adhesive attachments in traumatic dental injury." International Journal Of Community Medicine And Public Health 8, no. 12 (November 24, 2021): 6165. http://dx.doi.org/10.18203/2394-6040.ijcmph20214621.

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Crown root cracking is uncommon, accounting for less than 7% of irreversible damage. All the hard tissues of the teeth (crust, dentin, and cementum), as well as the pulp and periodontal ligament, are commonly involved in these complicated fractures. The care of such instances offers major biological hurdles, and success is dependent on considering a variety of regenerative, endodontic, and temporal variables. Numerous clinical investigations demonstrate that adhesive coronal attachment might be an essential therapy for fractured teeth with crown roots. Because it maintains the original tooth, this technique may save the gums and decrease the time and expense of therapy. Before considering adhesive attachments for dental fractures, several factors should be considered-the site and size of the fracture, the fracture pattern, and the position of traumatized teeth. The aim of the article was to review the role of adhesive attachments in a traumatic dental injury.
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Labidi, Amel, Sana Bekri, Lamia Mansour, and Sonia Ghoul-Mazgar. "Implants Placement in Contact with Dental Tissue: A Potential Paradigm Shift? Systematic Literature Review." European Journal of Dentistry 13, no. 04 (October 2019): 642–48. http://dx.doi.org/10.1055/s-0039-1697213.

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AbstractThe aim of this study was to explore the literature for clinical and histological data of an unconventional treatment with implants placement in contact with dental tissue (IPICDT) and to try to clarify its indications and surgical procedure particularities.Relevant publications published until May 2019 on the IPICDT were thoroughly reviewed. Search strategy was developed using a controlled vocabulary combination.Medline’s exploration and manual research identified 397 articles; 15 of these were selected after screening. IPICDT was indicated in three clinical situations: impacted teeth, ankylosed teeth, or residual roots. Clinical and radiological follow-up were satisfied except for implants placed in contact with (and not through) roots. Histological analysis revealed different mineralized tissues formed on the implant surface: cementum on removed implants in human and osteodentin on implants placed in contact with animal teeth dentin and pulp. These findings were described as new concept of implants’ “Mineral integration.”According to this study, the follow-up results of implants placed in contact with roots were controversial. Some implants were stable and others were either removed or kept and disinfected after root extraction because of bacterial infection. However, implants placed through ankylosed or impacted teeth were stable. These findings suggest that the clinicians have to be cautious when applying this unconventional approach. Further studies are recommended to explore its long follow-up. It is also interesting to explore this technique in cases of syndromic dental diseases with several impacted teeth (such as cleidocranial dysplasia; or amelogenesis imperfecta).
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Bogra, Poonam, Suresh Kumar Saini, and Amita Saini. "Diagnosis and Treatment of Inflammatory Root Resorption by Intentional Reimplantation." International Journal of Experimental Dental Science 1, no. 2 (2012): 106–9. http://dx.doi.org/10.5005/jp-journals-10029-1026.

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ABSTRACT External root resorption is a lytic process occurring in the cementum or cementum and dentin of the roots of teeth. It is frequently caused by trauma. Such cases are often difficult to diagnose especially if lesion is on buccal or lingual side, and at times may be difficult to treat using conventional root canal treatment, with extraction being left the only alternative. This article describes the diagnosis and treatment of a case of inflammatory resorption of palatal wall of palatal root of maxillary left first molar by intentional reimplantation. The provisional diagnosis was made from clinical and radiographic observations. The treatment consisted of intentional reimplantation. After extraction it was found that palatal wall of palatal root had been resorbed from furcation till apex. After the resection of the palatal root at the point of resorption, tooth was obturated, reimplanted and splinted. This tooth is serving well since 5 years. How to cite this article Saini SK, Bogra P, Saini A. Diagnosis and Treatment of Inflammatory Root Resorption by Intentional Reimplantation. Int J Experiment Dent Sci 2012;1(2):106-109.
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P M, Dr Jini, Dr Shibani Shetty, Dr Jayalakshmi K B, Dr Prasannalatha Nadig, and Dr Sujatha I. "Caries protective effect of two Self-etch dentin bonding agents on denuded root dentin surface: In Vitro Study." RGUHS Journal of Dental Sciences 11, no. 2 (2019): 36–41. http://dx.doi.org/10.26715/rjds.11_2_7.

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Objective: To evaluate the caries protective effect of two self-etching dental adhesive agents on the denuded root surface. Materials and methods: The roots of 30 freshly extracted , non-carious human premolars were cleaned and denuded of cementum. The teeth surfaces were covered with acid-resistant nail varnish, exposing two rectangular windows (lingual and buccal surface) of 4 x 4 mm each. The window on the lingual furface served as the control , while the buccal window were treated with dentin bonding agent. All specimens were store in acidifed gel for 6 days for demineralization. The specimens were then divided among two experimental groups-Group A: Optibond all in one and Group B: Bond-1SF.In Group C (control group) bonding agent was not applied. The specimens were stored in 0.9% sodium chloride solution for 14 days. Plano parallel tooth sections (80 ± 20 μm) were obtained. Tooth sections were evaluated for caries‑like demineralized zone under a polarized microscope. The values obtained were analyzed using one‑way ANOVA and Tukey honesty tests. Results: In the Control group the mean depth of demineralization was 80.08µm .The depth of demineralization was significantly reduced in Group A and B. Conclusion: Self-etching dental adhesive agents with and without solvent is an effective method to prevent demineralization of root dentin.
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PEREIRA JÚNIOR, Edmêr Silvestre, Maria Francisca Thereza Borro BIJELLA, Salete Moura Bonifácio da SILVA, and Bernardo Gonzales VONO. "In vitro evaluation of marginal microleakage of class II bonded amalgam restorations using a dentin adhesive and a glass ionomer cement." Revista de Odontologia da Universidade de São Paulo 13, no. 2 (April 1999): 103–9. http://dx.doi.org/10.1590/s0103-06631999000200002.

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The purpose of this study was to evaluate in vitro the effectiveness of the dentin bonding system All Bond 2 associated with Resinomer (Bisco), and of Vitrebond (3M) glass ionomer cement fresh-mixed, both used in the bonded amalgam technique, to prevent short-term microleakage in class II cavities restored with Dispersalloy (Dentsply), an admixed alloy. The control group utilized the Copalite (Cooley & Cooley) varnish. Forty five sound human extracted premolars were used. Class II cavity preparations were made on the mesial and distal surfaces of non-carious teeth, with the gingival margins wall established 1mm under the cementum enamel junction. The specimens were divided randomly into three groups with thirty cavities in each group. The teeth were stored in distilled water for 24 hours and were thermocyled through 500 cycles in distilled water between 5°C and 55°C with a dwell time of 15 seconds. The apices and roots of the teeth were sealed. They were placed in a 37°C bath of 0.5% basic fuchsin dye for 24 hours. The teeth were washed in tap water for 24 hours and cut. The microleakage scores per restoration were averaged and three values of various test groups were subjected to the Kruskal-Wallis and Dunn test at a significance level of p < 0.05. The All Bond 2/Resinomer showed significantly less microleakage at gingival margins than the Vitrebond and Copalite lined to amalgam restorations. The Vitrebond fresh mixed, lined to amalgam restorations, showed significantly less microleakage than the Copalite lined to amalgam restorations.
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Dissertations / Theses on the topic "Cementum ; Dentin ; Teeth – Roots – Permeability"

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McHugh, Paul L. "In vitro studies of the permeability of tooth roots using radiolabelled molecules and electron microanalysis." Thesis, 1990. http://hdl.handle.net/2440/122384.

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Undertaken to determine the ability of molecules to permeate human tooth roots in vitro and suggests communication could occur between the dental pulp and the periodontal ligament via the dentine and cementum of the tooth root.
Thesis (M.D.S.)--University of Adelaide, Dept. of Dentistry, 1991.
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Book chapters on the topic "Cementum ; Dentin ; Teeth – Roots – Permeability"

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Coleman. DDS, Thomas A. "Combining the Air Indexing Method With the T-Scan System to Detect and Quantify Cervical Dentin Hypersensitivity." In Advances in Medical Technologies and Clinical Practice, 829–78. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9254-9.ch011.

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This chapter introduces the air indexing method for detecting and quantifying cervical dentin hypersensitivity (CDH) as a companion to the T-Scan Occlusal Analysis System which evaluates force and timing values for occlusal contacts of teeth. This chapter will also highlight an evidence-based retrospective investigation undertaken between 1979 and 1996 that evaluated associations and/or correlations between diagnosed CDH and its resolution following occlusal adjustment. This retrospective's method described the detection, diagnosis, and treatment of the signs and/or symptoms of the common clinical finding amongst patients with CDH. Stress physics will illustrate how small occlusal contacts magnify the impact that applied occlusal contact force has on the cervical regions of teeth. This resultant cervical stress is etiologic for how non-carious cervical lesions (NCCLs) form and degrade tooth roots. This chapter also explains how biocorrosion from endogenous and exogenous sources produces loss of dentin's protective proteins, glycoproteins, and cementum, which add to the effects of applied occlusal force, thereby creating CDH symptoms and NCCLs. CDH appears resultant from the co-factors of occlusal forces that produce cervical stress, along with biocorrosion, that are both modified by occlusal surface friction. The air indexing method of CDH diagnosis is an objective diagnostic means to detect and quantify CDH symptoms during the formation of cervical lesions. This chapter presents the clinical benefits of melding the T-Scan Occlusal Analysis System with the Air Indexing Method when clinically assessing and treating cervical hard tissue pathologies. The clinician gains significantly more occlusal insight as opposed to using either methodology alone, when air indexing is combined with T-Scan's occlusal contact force and timing data. Lastly, this chapter introduces two case reports of how T-Scan guided occlusal adjustments can be effective at reducing CDH and prohibiting the progression of gingival recession.
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