Blocks of composite (Filtek Supreme XTE; 3M, Seefeld, Germany) (Table 1), of size 17.4 mm x 5.4 mm x 1.6 mm were prepared in a metal mold following manufacturer's instructions. After application in the metal mold, the unpolymerized composite was covered with a glass plate to avoid the formation of an oxygen layer and subsequently polymerized for 40s with a light lamp (Bluephase 20i, High power mode; Ivoclar-Vivadent, Schaan, Liechtenstein) with an output >1000 mW cm -2 and wavelength 385-515 nm. Since the diameter of the light probe was 10 mm (i.e., smaller than the length of the sample), each segment of the sample was polymerized for 40 s until all parts were adequately cured (approximately 3 curings per sample). Each time the lamp tip was held as close as possible to the covering glass plate.
Filtek supreme xte
Manufactured by 3M
Sourced in United States, Germany
Filtek Supreme XTE is a light-cured, radiopaque, nanofilled universal restorative material developed by 3M. It is designed for use in anterior and posterior restorations.
Automatically generated - may contain errors
Lab products found in correlation
Bluephase 20i, by Ivoclar Vivadent (1 mentions)
Elipar deepcure s, by 3M (1 mentions)
Dimethyl sulfoxide (dmso), by Merck Group (1 mentions)
Adper single bond plus, by 3M (1 mentions)
Scotchbond universal etchant, by 3M (1 mentions)
Stemi 2000, by Zeiss (1 mentions)
Scotchbond universal, by 3M (1 mentions)
Scotchbond universal adhesive, by 3M (1 mentions)
9 protocols using filtek supreme xte
1
Standardized Composite Resin Specimen Preparation
2
Composite Specimens Fabrication and Aging
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The compositions of the main materials used in the present study are given in Table 1 . Seventy-eight specimens (diameter: 10 mm) were fabricated by placing three 1.5 mm thick composite increments (Filtek Supreme XTE, 3M, St. Paul, MN, USA; color A4D) on scanning electron microscope (SEM) carriers using cylindrical Teflon molds. To achieve a flat surface, the composite surface was leveled using a PTFE-roller (CompoRoller TM 5300, KerrHawe, Bioggio, Switzerland). Photo-activation was performed for 20 s at 1500 mW/cm2 (Elipar Deepcure-S, 3M). Subsequently, the 78 specimens were randomly assigned to 13 groups of six specimens each (Figure 1 ). Specimens of the positive control group (group 1) were immediately processed further, while all other groups were polished under constant water cooling with 4000-grit silicon carbide (SiC) paper (Buehler-Met II, Buehler, Esslingen, Germany). Prior to the conditioning steps, groups 2–13 were aged in a thermocycling machine (Haake W15, Thermo, Willytec, Gräfelfing, Germany) for 5000 cycles between 5 °C and 55 °C (dwell time: 20 s in each bath; transfer time: 10 s; duration of each cycle: 50 s), as described by Wiegand et al. [26 (link)].
3
DMSO Concentration Effects on Dental Restoration
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Seven concentrations of DMSO were used in this study. All concentrations were diluted from a 99.9% DMSO (Merck, Billerica, MA, USA) with distilled water to produce lower concentrations of DMSO (0.001, 0.01, 0.1, 1, 5, 10, and 20%). Phosphoric acid 37% (Scotchbond Universal Etchant, 3M ESPE, Seefeld, Germany), adhesive resin (Adper Single Bond Plus, 3M ESPE, St. Paul, MN, USA) and resin composites (Filtek Supreme XTE, 3M ESPE) were used for restorative procedure.
4
Pediatric Composite Restorations and Anxiety Assessment
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In this visit, children received occlusal composite restorations (Filtek Supreme XTE (3M ESPE, St. Paul, MN, USA)) that required the administration of local anesthesia (2% lidocaine with 1:100,000 epinephrine) in the upper arch. All restorations were performed under rubber dam isolation. At the end of the visit, both anxiety levels and behavior were assessed using the same scales: CFSS-DS, VCAS, and Frankl behavior rating scale.
The interval between the visits was one week. Parental presence in the dental office was allowed in all visits with basic behavior guidance. At the end of the study, children who needed additional treatment were scheduled with the same dentist.
The interval between the visits was one week. Parental presence in the dental office was allowed in all visits with basic behavior guidance. At the end of the study, children who needed additional treatment were scheduled with the same dentist.
5
Adhesive Systems and Composite Restoration for Class V Cavities
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After application of the different adhesive systems, all 60 pretreated Class V cavities were restored in one increment with a nanofilled composite material (Filtek Supreme XTE; 3M ESPE; shade A2B, LOT N535229), and light cured for 20 s. Surgical scalpel blades (No. 12D; Gebr. Martin, Tuttlingen, Germany) were used to remove excess before the restorations were finished and polished with silicon instruments (Brownie Mini-Points and Greenie Mini-Points; Shofu Dental Corporation, San Marcos, CA, USA) and polishing brushes (Occlubrush; Kerr). A microscope was used at 25x magnification (Stemi 2000; Zeiss, Oberkochen, Germany) during placement of the restorations and in order to check them. Subsequently, the specimens were artificially aged by thermocycling -5000 times in water between 5 °C and 55 °C, dwell time of 20 s in each temperature bath, transfer time of 10 s (Willytec; Gräfelfing, Germany) [17] .
6
Regenerative Endodontic Procedure for Crown Fracture
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The right and left central maxillary permanent incisors of an eight-year-old girl suffered an uncomplicated crown fracture. Both teeth reacted positively to carbon dioxide snow (CDS) and were restored with a calcium-hydroxide lining (Life, Kerr, Scafati, Italy), glass-ionomer cement (Fuji 2 LC, GC, Tokyo, Japan; 'GIC') and composite (Filtek Supreme XTE, 3M Oral Care, Seefeld, Germany).
Nevertheless, 8 months later, the left central maxillary permanent incisor reacted negatively to CDS and presented a vestibular abscess. The tooth received REP following the procedure detailed by the European Society of Endodontology [1] , with the exception that no CollaPlug (Zimmer Biomet, Berlin, Germany) was used underneath the MPC and a zinc phosphate cement (De Trey Zinc, Densply Sirona, Konstanz, Germany) was placed instead of GIC underneath the composite restoration. At the recall 20 months post REP, the periapical lesion was healed, but not enough root-canal wall thickening was obtained (Fig. 2b). After multi-disciplinary consultation at 22 months post REP, it was decided to remove this tooth rather than extracting a sound premolar to create space for orthodontic reasons.
Written informed consent was obtained by the patient and the parents to use the tooth for further research.
Nevertheless, 8 months later, the left central maxillary permanent incisor reacted negatively to CDS and presented a vestibular abscess. The tooth received REP following the procedure detailed by the European Society of Endodontology [1] , with the exception that no CollaPlug (Zimmer Biomet, Berlin, Germany) was used underneath the MPC and a zinc phosphate cement (De Trey Zinc, Densply Sirona, Konstanz, Germany) was placed instead of GIC underneath the composite restoration. At the recall 20 months post REP, the periapical lesion was healed, but not enough root-canal wall thickening was obtained (Fig. 2b). After multi-disciplinary consultation at 22 months post REP, it was decided to remove this tooth rather than extracting a sound premolar to create space for orthodontic reasons.
Written informed consent was obtained by the patient and the parents to use the tooth for further research.
7
Non-carious Cervical Lesion Restoration Techniques
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The universal adhesive Scotchbond™ Universal (3M Deutschland GmbH, Seefeld, Germany) was applied in combination with the composite Filtek™ Supreme XTE (3M Deutschland GmbH, Seefeld, Germany) in the conditioning modes of self-etch, selective-enamel-etch and etch-and-rinse. The OptiBond™ FL adhesive system (Kerr GmbH, Herzogenrath, Germany) served as a reference system (ER mode; Table 2 ). Restorations were performed on 22 patients, each with 4 non-carious cervical lesions on the incisors, canines, or premolars (88 lesions in total). The randomized allocation of the teeth and lesions in the study groups is shown in Table 1 and Table 2 and Figure 1 a. Lesion sizes were classified and categorized as shallow (depth ≤ 1 mm), medium (depth ≤ 2 mm) or deep (depth > 2 mm) before restoration. Tooth wear was determined according to the Smith and Knight Tooth Wear Index [28 (link)] and took into account teeth with a tooth wear index score between 2 and 4. All restorations were placed according to Table 2 and the previously described protocol [29 (link)].
8
Chlorhexidine-based Dental Composite Protocol
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Chlorhexidine base (≥ 99.5%) and other chemicals including L-glutamic acid γ-benzyl ester (≥ 99.9%), poly (lactic-co-glycolic acid—PGA; 50/50, mol wt 30,000–60,000), triphosgene reagent grade, 3-aminopropyltriethoxysilane (APS), N-cetyltri-methylammonium bromide (CTAB), tetraethyl orthosilicate (TEOS), phosphate-buffered saline (PBS), MTT assay kit were purchased from Sigma-Aldrich (St. Louis, MO, USA). Scotchbond™ Universal Adhesive, adhesive micro brush applicator and Filtek™ Supreme XTE composite universal restorative material was purchased from 3 M ESPE, St Paul, MN, USA.
9
Composite Restoration Microtensile Strength
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All groups were restored with three 1.5 mm thick composite increments of Filtek Supreme XTE (3M; color A1E) using cylindrical Teflon molds. Each repair composite increment was leveled with CompoRoller (KerrHawe), and light-cured for 20 s. Prior to microtensile bond strength testing, all specimens underwent a further thermal cycling procedure (5000 times, 5–55 °C) [26 (link),35 (link)].
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