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Monographs of fragrance chemicals and extracts that have caused contact allergy / allergic contact dermatitis
Published in Anton C. de Groot, Monographs in Contact Allergy, 2021
Eugenol is a pale yellow to dark yellow clear liquid; its odor type is spicy and its odor at 10% in dipropylene glycol is described as ’sweet spicy clove woody’ (www.thegoodscentscompany.com). Eugenol is used in perfumery in clove and carnation compositions as well as for oriental and spicy notes. It is a common component of clove and other aroma compositions. Eugenol from clove leaf oil sources is used as a chemical raw material for conversion to several derivatives, the most important of which is isoeugenol, which in turn is used to produce vanillin. Zinc oxide-eugenol cements have many uses in dentistry; the admixture of powdered zinc oxide and liquid eugenol forms a bland, easily mixed paste having excellent working time but slow-setting antiseptic characteristics that is used in temporary luting and filling material, pulp capping and periodontal packs. Indeed, eugenol is found as a major ingredient in a variety of dental materials such as impression materials, filling materials, dental cements, endodontic sealers, periodontal dressing materials and dry socket dressings (94). In combination with geraniol, eugenol is applied as a kairomone insect attractant which is used widely for monitoring new infestations of the Japanese beetle Popillia japonica and for removal trapping in orchards. Eugenol may also be used as a denaturant for alcohol (U.S. National Library of Medicine).
Antibacterial, pH Neutralizing, and Remineralizing Fillers in Polymeric Restorative Materials
Published in Mary Anne S. Melo, Designing Bioactive Polymeric Materials for Restorative Dentistry, 2020
Abdulrahman A. Balhaddad, Maria S. Ibrahim, Michael D. Weir, Hockin H.K. Xu
Odontoblasts and undifferentiated mesenchymal cells can be recruited to induce reparative dentin formation by the use of pulp-capping materials to protect the dental pulp from further insults and prevent the onset of pulpitis (Goldberg and Smith 2004). Zinc oxide eugenol was found ineffective in healing the pulp (Glass and Zander 1949). Most probably, the release of eugenol is highly toxic and interferes with diminishing the pulpal inflammation (Hume 1984).
Effectiveness of iodoform-based filling materials in root canal treatment of deciduous teeth: a systematic review and meta-analysis
Published in Biomaterial Investigations in Dentistry, 2022
Manoelito Ferreira Silva Junior, Leticia Maíra Wambier, Mayara Vitorino Gevert, Ana Cláudia Rodrigues Chibinski
Several iodoform-based filling materials had been used in the studies. Iodoform with calcium hydroxide was present in the commercial brands: Metapex [9,10,19,20] and Vitapex [14–17,27–29] and Maisto-Capurro paste [30]. Iodoform associated with zinc oxide, eugenol and calcium hydroxide was synthesized using all these components [17], without addition of chlorophenol [9], with addition of propolis [36], or as the commercial brand (Endoflas) [11,12,18,19,35]. One study used iodoform, zinc oxide and eugenol (RCFill) [16] and another study used iodoform, zinc oxide eugenol (ZOE), bismuth subcarbonate, resins, barium sulphate, eugenol and excipients (Zical) [21]. Two studies used different versions of the modified Guedes-Pinto paste [37,38], and finally one study used Maisto paste [13].
Periapical status transitions in teeth with posts versus without posts: a retrospective longitudinal radiographic study
Published in Acta Odontologica Scandinavica, 2022
Marika Koutsouri Haereid, Lina Stangvaltaite-Mouhat, Vibeke Ansteinsson, Ibrahimu Mdala, Dag Ørstavik
Root filled teeth were restored by a post and core restoration when the loss of structural integrity resulted in insufficient hard tissue support for a permanent coronal restoration. Irrespective of post placement, a minimum of 2 mm of coronal dentine was required for the preparation of a ferrule. The length of the post should be equal to the clinical length of the crown, and at least 3 mm well-condensed root filling should remain apical to the post preparation. All posts and cores in this study were custom cast posts made from gold alloy. Preparation for the post was made with the Parapost system (Parapost XP; Coltene Whaledent). Between post and core preparation and cementation, the post space was filled with calcium hydroxide paste and the coronal cavity sealed with IRM. Polyether impression material (Permadyne, Impregum Penta; 3M) was used. When possible, and especially in the front region, interim prostheses were made using prefabricated metal posts (Parapost XP; Whaledent), celluloid or polycarbonate crown forms and resin. Temporary restorations were cemented med zinc-oxide-eugenol cement (Temp Bond; Kerr or Nobetec; Directa). Prior to permanent cementation, the marginal and internal adaptation of the post and core restoration were controlled radiographically and clinically (Fit Checker; GC was regularly used). All posts were cemented with zinc-phosphate cement (De Trey Zinc Phosphate Cement; Dentsply)
The effects of various irrigation protocols on root canal wall adaptation and apical microleakage in primary teeth
Published in Acta Odontologica Scandinavica, 2020
Burcu Nihan Yüksel, Akif Demirel, Meryem Ziya, Kevser Kolçakoğlu, Salih Doğan, Şaziye Sarı
The root canals of the teeth (except for Group 6) were air-sprayed after drying with paper points, ensuring that no air bubbles were left. Then, all canals were filled with Endoflas (Sanlor and Cia, S. en C.S., Cali, Colombia) filling material by using a low-speed handpiece and with the lentulo spiral method (ISO size 25) to be one mm shorter than the working canal length. At the end of the procedure, radiographs were obtained to confirm that the canal filling material reached apical third, and then access cavities were sealed with strengthened zinc oxide eugenol (Intermediate Restorative Material; IRM; Dentsply, Milford, DE). In the evaluation of apical microleakage, only the samples of the positive control group were not filled, and all the samples were kept in distilled water at 37 °C in the incubator for 24 h to allow the filling material to set before the samples were removed from the wax blocks.