Background: Biodegradable hydrogel scaffold is one of the crucial characteristics that determine the success of pulp regeneration. The degradation should be suitable for the growth of new tissue establishment. The aim of this study is to synthesize and compare the novel biodegradable hydrogel scaffold based on hydroxyapatite (HAp) eggshell, collagen, and epigallocatechin-3-gallate (HAp-Col-EGCG) with different HAp concentrations in vitro. Materials and Methods: This study is original research. HAp-Col-EGCG hydrogel scaffolds were prepared using 1:1, 1:2, and 1:4 ratios of collagen and HAp with 10 μmol/L EGCG. The samples were freeze-dried and immersed in phosphate buffer saline containing lysozyme enzyme. The dried samples were weighed to determine the percentage of biodegradation value (P < 0.05). Results: The result showed HAp-Col-EGCG was biodegradable but it has not been concluded that it can be completely eliminated. The data were analyzed by one-way analysis of variance and it indicated significant differences in percentage values. Conclusion: Hydrogel scaffold based on HAp-Col-EGCG can be degraded and have the potential to be used as a biodegradable scaffold in supporting tissue regeneration.
<p><span><strong><em>Background:</em></strong><em> </em></span><span><em>The second mesiobuccal canal in mesiobuccal (MB2) roots in maxillary molars is a common finding in root canal treatments.</em></span><span><em><sup>1</sup></em></span><span><strong><em> </em></strong><em>The incidence of MB2 in maxillary molars </em></span><span><em>is 60.4%. The foremost common reasons for treatment failures in permanent maxillary first molars have been as cribed to failure in identifying extra canals particularly in the mesiobuccal root.</em></span><span><em><sup>2</sup></em></span><span><em> The method for detection MB2 includes dentin removal under magnification and ultrasonic tips. </em></span><span><em><sup>1</sup></em></span><span><em> Knowledge of the morphology of the root canal system is important in planning endodontic therapy, as its success relies on the location of all of the canals that can then be disinfected, shaped, and filled.</em></span><span><em><sup>2</sup></em></span><span><em>This case report is written to bring forward the proper and successful management in</em></span><span><em>endodontic treatment of permanent maxillary first molar with</em></span><span><em>four canals, in which the mesiobuccal root has two canals. </em></span><span><strong><em>Case Report:</em></strong><em> </em></span><span><em>A 33 years old male patient complained of cavity on her right upper back tooth and wanted to be filled. Radiographic examination showed that an incomplete access cavity with mesioocclusal cavity of maxillary second molar, which was restored with temporary filling. Access opening and locating MB2 orifice was performed using an ultrasonic tip and under dental operating microscope. The canals were prepared with WaveOne Gold rotary Ni-Ti file with irrigation using 5.25% sodium hypochlorite, 17% EDTA and 2% chlorhexidine gluconate. Calcium hydroxide was used as an intracanal medicament. The canals were obturated with continuous wave compaction technique. Final restoration was performed using composite restoration. </em></span><span><strong><em>Conclusion:</em></strong></span><span><em> The proper locating and treatment of MB2 canals are essential for the success of endodontic treatment of maxillary second molars.</em></span></p>
<p><strong><em>Background:</em></strong><em> </em><em>Value of the appearance of one’s teeth has taken on a greater importance in today’s society. Several Choices of treatment are available to treat the problems arising in the zone of high esthetic sensitivity. Each treatment offers some advantages and disadvantages. The use of porcelain laminate veneers to solve esthetic and functional problems has been shown to be a valid management option especially in the anterior esthetic zone. Smile design is a scientific principal that can help operators to achieve esthetic goals. This case report discussed a patient with diastema in the anterior region with protrusive dental position. The patient was treated with porcelain laminate veneers in the anterior teeth for diastema closure. <strong>Objective:</strong> This case report was written to bring forward the proper and successful management in esthetic treatment of anterior maxilla in protrusive dental position case. <strong>Case and management : </strong>A 37 year-old female patient complained of diastema in anterior teeth and feels uncomfortable with her condition. She was unhappy with the appearance of her teeth and restrained herself from smiling due to self-consciousness. On examination, diastemas were found in her maxillary and mandibular anterior region. Smile Design was applied in this patient, and it was decided to use porcelain laminate veneer. The tooth preparation was kept in enamel at a depth of 0.5 mm using a depth cutting diamond and a tapered diamond 1 mm in diameter. 0.25 mm chamfer was maintained in the cervical region The chamfer finish lines were at the level of gingival margin. Gingival retraction procedure was performed prior to final dental impression using a double impression technique. Cementation was done after final evaluation of both aesthetic and function. <strong>Conclusion:</strong> Esthetic management in diastema closure using simple smile design can be done by using porcelain laminate veneers which give satisfactory result.</em></p>
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.