cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7512986.v1
title: Microtensile bond streght of Bulk Fill resin composites: in vitro analysis

description: Abstract Introduction The class of the Bulk Fill composites has gotten popularity with the promise of been cured effectively of layers up to 4 mm, a fact with contrasts with the 2 mm required for the convencional composites for maintance of the restoration’s adhesion. Objective The aim of this study was evaluate the microtensile bond strength to dentine of restorations made with Bulk Fill composites. Material and method 15 thirds molars teeth were utilized, whose occlusal layer was cut, exposing the teeth dentine. The teeth were divided in three groups according to the type of restoration materials. All groups were treated with the adhesive system Adper Single Bond 2. Subsequently they were cut in sticks with approximately 1 mm wide, 1 mm depth and 8 mm high, that were fixated at a universal microtensile maching. 10 sticks of each tooth were used in the experiment totaling 50 sticks per group. The data of bond strength microtensile were expressed in MPa. The failures mode was evaluated at an optical microscope. The Data were statistically analyzed through ANOVA and Tukey test (p&lt;0.05). Result The three composites studied differed statistically among themselves (p&lt;0.000). The Bulk Fill composites had microtensile bond strength similar and higher than the convencional (p&lt;0.000). The pattern failure mode found in all groups studied was the mixed. Conclusion The Bulk Fill composites showed the highest values of microtensile bond strength with the restorative technique used.
DOI: 10.6084/m9.figshare.7512995
title: In vitro evaluation of the influence of patency file in maintaining the working length

description: Abstract Objective This study aimed to evaluate the influence of patency file in maintaining the working lenght (WL) for the crown-down preparation using oscillating system in artificial canals of acrylic. Material and method Thirty acrylic cubes were divided: a) Group 1 (n=10): without patency file and it were prepared in CT (CT=16 mm); b) Group 2 (n=10): with the patency #10 K-file, patency length of 17 mm and it were prepared in CT; and c) Group 3 (n=10): without patency file, using a #10 K-file in 16 mm for recapitulation and it were prepared in CT. Distilled water was used as irrigating solution. The results were statistically analyzed by the Levene and the Kruskal-Wallis test (p≤0.05), where it observed the loss of WL after instrumentation in different approaches to patency file. Result The results showed a statistically significant difference between groups 1 and 3 compared to group 2, however the group 1 be compared in relation to these 3 showed statistical similarities. Group 2 was the one who saved the WL after instrumentation in 16 mm, while group 1 and 3 showed a loss of up to 2 mm WL. Conclusion It was concluded that the patency file at 1 mm beyond the WL was effective in maintaining its length during root canal preparation.
DOI: 10.6084/m9.figshare.7509890
title: Analysis of pH and release of calcium of association between melaleuca alternifolia oil and calcium hydroxide

description: Abstract Introduction The use of intracanal medications with antimicrobial properties is essential for decontaminating root canals during endodontic treatment. Calcium hydroxide is used for this because of its excellent properties. Melaleuca alternifolia oil has shown medicinal importance by demonstrating antifungal and bactericidal action against proven human pathogens. Objective To evaluate the physical and chemical aspects such as pH and calcium release, of Melaleuca alternifolia oil associated with calcium hydroxide, during different time intervals. Material and method Calcium hydroxide powder was added to vehicles to reach a concentration of 72mg / 0.1mL. Three groups were formed: Group I: Calcium Hydroxide + Distilled Water; Group II: Calcium hydroxide + Propylene Glycol; Group III: Calcium hydroxide + Melaleuca oil. The pH of each group was measured after time intervals of 10 minutes; 24 and 48 hours; 7, 15 and 30 days after tooling by a pH meter. Calcium release was analyzed by atomic absorption spectrometry equipped with a calcium hollow cathode lamp. Data were statistically analyzed by using the Kruskall-Wallis and Dunn test. Result Group II showed high pH, similar to group III that remained uniform at 15 and 30 days. Calcium release that began after 24 hours, was similar in Groups II and III, and showed a peak release in 48 hours. Conclusion The association of Melaleuca oil with calcium hydroxide showed good results in the pH and calcium release analyses, and showed action similar to that of propylene glycol + calcium hydroxide.
DOI: 10.6084/m9.figshare.7509890.v1
title: Analysis of pH and release of calcium of association between melaleuca alternifolia oil and calcium hydroxide

description: Abstract Introduction The use of intracanal medications with antimicrobial properties is essential for decontaminating root canals during endodontic treatment. Calcium hydroxide is used for this because of its excellent properties. Melaleuca alternifolia oil has shown medicinal importance by demonstrating antifungal and bactericidal action against proven human pathogens. Objective To evaluate the physical and chemical aspects such as pH and calcium release, of Melaleuca alternifolia oil associated with calcium hydroxide, during different time intervals. Material and method Calcium hydroxide powder was added to vehicles to reach a concentration of 72mg / 0.1mL. Three groups were formed: Group I: Calcium Hydroxide + Distilled Water; Group II: Calcium hydroxide + Propylene Glycol; Group III: Calcium hydroxide + Melaleuca oil. The pH of each group was measured after time intervals of 10 minutes; 24 and 48 hours; 7, 15 and 30 days after tooling by a pH meter. Calcium release was analyzed by atomic absorption spectrometry equipped with a calcium hollow cathode lamp. Data were statistically analyzed by using the Kruskall-Wallis and Dunn test. Result Group II showed high pH, similar to group III that remained uniform at 15 and 30 days. Calcium release that began after 24 hours, was similar in Groups II and III, and showed a peak release in 48 hours. Conclusion The association of Melaleuca oil with calcium hydroxide showed good results in the pH and calcium release analyses, and showed action similar to that of propylene glycol + calcium hydroxide.
DOI: 10.6084/m9.figshare.7517510
title: Influence of defects in solution irrigating dentinal training after preparation with System Reciproc®

description: Abstract Introduction Different sodium hypochlorite concentrations are available for use during the mechanical preparation of root canals by reciprocating instruments. Because of the speed with which the channel is instrumented in this new reciprocating kinematics, higher concentrations of sodium hypochlorite (NaOCl) has been recommended. Thus, it is opportune to research to evaluate whether the irrigant NaOCl solution enhances the possibility of formation of dentinal defects caused by Reciproc system. Objective To analyze the influence of irrigating sodium hypochlorite solution in the formation of dentinal defects caused by Reciproc® instrumentation system. Material and method We used 60 extracted first premolars were divided into two groups (G1) NaOCl 5.25% (n = 30); (G2 Control) Distilled water (n = 30), only the buccal conduit was instrumented with Reciproc® system and irrigated with the solutions. All the crowns of the teeth were cut perpendicular to the long axis, and the roots included in alveoli and simulated periodontal ligament. Palatal conduits were not instrumented or irrigated, because they served as a control for the specimen itself. At the end of the instrumentation, the roots were cut at 2, 4, 6 and 8 mm from the apical foramen and taken to the stereoscopic microscope to assess and record the formation of dentinal defects. Result Dentinal defects were found in the control group (G2) and sodium hypochlorite 5.25% group (G1), but no statistically significant difference between them (p&gt; 0.05). Conclusion Sodium hypochlorite not triggered dentinal defects changes when used in combination with instrumentation for Reciproc® system.
DOI: 10.6084/m9.figshare.7517510.v1
title: Influence of defects in solution irrigating dentinal training after preparation with System Reciproc®

description: Abstract Introduction Different sodium hypochlorite concentrations are available for use during the mechanical preparation of root canals by reciprocating instruments. Because of the speed with which the channel is instrumented in this new reciprocating kinematics, higher concentrations of sodium hypochlorite (NaOCl) has been recommended. Thus, it is opportune to research to evaluate whether the irrigant NaOCl solution enhances the possibility of formation of dentinal defects caused by Reciproc system. Objective To analyze the influence of irrigating sodium hypochlorite solution in the formation of dentinal defects caused by Reciproc® instrumentation system. Material and method We used 60 extracted first premolars were divided into two groups (G1) NaOCl 5.25% (n = 30); (G2 Control) Distilled water (n = 30), only the buccal conduit was instrumented with Reciproc® system and irrigated with the solutions. All the crowns of the teeth were cut perpendicular to the long axis, and the roots included in alveoli and simulated periodontal ligament. Palatal conduits were not instrumented or irrigated, because they served as a control for the specimen itself. At the end of the instrumentation, the roots were cut at 2, 4, 6 and 8 mm from the apical foramen and taken to the stereoscopic microscope to assess and record the formation of dentinal defects. Result Dentinal defects were found in the control group (G2) and sodium hypochlorite 5.25% group (G1), but no statistically significant difference between them (p&gt; 0.05). Conclusion Sodium hypochlorite not triggered dentinal defects changes when used in combination with instrumentation for Reciproc® system.
DOI: 10.6084/m9.figshare.7514123
title: Microtensile bond strength of 2-step etch-and-rinse adhesive systems: Effects of different treatments of etched dentin

description: Abstract Introduction The development of adhesive systems allow manufacturers to develop materials with increasingly simplified techniques, but that still would promote adequate resistance values of immediate union. It is suggested that some treatments of dentin surface can facilitate the process of accession. Objective To evaluate the effects of different treatments in conditioned flat dentin surface on bond strength to microtensile 2-step etch-and-rinse adhesive systems. Material and method Ninety-six human third molars were divided into twelve groups (n = 8) randomly according to the used adhesive system (GI: Single Bond 2 - 3M ESPE; GII: Prime & Bond 2.1 - Dentsply; GIII: Excite - Ivoclar Vivadent) and type of treatment of the conditioned dentin (a: water; b: water + chlorhexidine; c: ethanol; d: chlorhexidine + ethanol). All teeth were restored with Charisma color A2 (Heraeus – Kulzer, Germany) and subjected to mechanical testing microtensile (EMIC DL-2000). The statistical test performed was ANOVA 1 factor supplemented with Tukey test. Result GIIc groups GIIIc and GIId showed statistically significant increase in bond strength to immediate microtensile. Conclusion The different treatments of dentin did not affect negatively the bond strength for all tested adhesive systems and the use of the technique with ethanol, with or without chlorhexidine, appears to be an interesting approach when combined with 2-step etch-and-rinse adhesive systems.
DOI: 10.6084/m9.figshare.7514123.v1
title: Microtensile bond strength of 2-step etch-and-rinse adhesive systems: Effects of different treatments of etched dentin

description: Abstract Introduction The development of adhesive systems allow manufacturers to develop materials with increasingly simplified techniques, but that still would promote adequate resistance values of immediate union. It is suggested that some treatments of dentin surface can facilitate the process of accession. Objective To evaluate the effects of different treatments in conditioned flat dentin surface on bond strength to microtensile 2-step etch-and-rinse adhesive systems. Material and method Ninety-six human third molars were divided into twelve groups (n = 8) randomly according to the used adhesive system (GI: Single Bond 2 - 3M ESPE; GII: Prime & Bond 2.1 - Dentsply; GIII: Excite - Ivoclar Vivadent) and type of treatment of the conditioned dentin (a: water; b: water + chlorhexidine; c: ethanol; d: chlorhexidine + ethanol). All teeth were restored with Charisma color A2 (Heraeus – Kulzer, Germany) and subjected to mechanical testing microtensile (EMIC DL-2000). The statistical test performed was ANOVA 1 factor supplemented with Tukey test. Result GIIc groups GIIIc and GIId showed statistically significant increase in bond strength to immediate microtensile. Conclusion The different treatments of dentin did not affect negatively the bond strength for all tested adhesive systems and the use of the technique with ethanol, with or without chlorhexidine, appears to be an interesting approach when combined with 2-step etch-and-rinse adhesive systems.
DOI: 10.6084/m9.figshare.7509899
title: Clinical effectiveness of fluorescence, digital images and ICDAS for detecting occlusal caries

description: Abstract Introduction The detection of small caries lesions is still a challenge for dental professionals who in their clinical practice have a wide variety of methods to detect caries on occlusal surfaces. Objective To clinically assess the effectiveness of the Vista Proof fluorescence camera, the Vista Cam digital intraoral micro camera and the International Caries Detection and Assessment System (ICDAS) visual criterion for detecting caries lesions on occlusal surfaces of permanent teeth. Material and method One hundred and seven posterior teeth from adult patients were examined visually and by means of digital radiographs by an examiner who rated them according to the presence or absence of occlusal caries. The teeth were then assessed by the other examiner using ICDAS, fluorescence and magnified digital images. The effectiveness of the methods was measured based on sensitivity, specificity, positive and negative likelihood ratio. For each method, the Receiver Operating Characteristic (ROC) curve and the Area Under the ROC curve (AUROC) were estimated. Result There was exceptional discrimination capacity for the intraoral images (AUROC=.93) and the ICDAS (AUROC=.91), with no significant statistical difference between them (z=.35, p=.73). The fluorescence exhibited an acceptable discrimination capacity (AUROC=0.78), although it was lower than the others. The positive likelihood ratio for the fluorescence was only 2.32, compared to 20.58 for the intraoral image and 58.11 for the ICDAS. Conclusion Both methods and the ICDAS exhibited an adequate clinical performance, although the ICDAS and intraoral image were more effective than the fluorescence.
DOI: 10.6084/m9.figshare.7509899.v1
title: Clinical effectiveness of fluorescence, digital images and ICDAS for detecting occlusal caries

description: Abstract Introduction The detection of small caries lesions is still a challenge for dental professionals who in their clinical practice have a wide variety of methods to detect caries on occlusal surfaces. Objective To clinically assess the effectiveness of the Vista Proof fluorescence camera, the Vista Cam digital intraoral micro camera and the International Caries Detection and Assessment System (ICDAS) visual criterion for detecting caries lesions on occlusal surfaces of permanent teeth. Material and method One hundred and seven posterior teeth from adult patients were examined visually and by means of digital radiographs by an examiner who rated them according to the presence or absence of occlusal caries. The teeth were then assessed by the other examiner using ICDAS, fluorescence and magnified digital images. The effectiveness of the methods was measured based on sensitivity, specificity, positive and negative likelihood ratio. For each method, the Receiver Operating Characteristic (ROC) curve and the Area Under the ROC curve (AUROC) were estimated. Result There was exceptional discrimination capacity for the intraoral images (AUROC=.93) and the ICDAS (AUROC=.91), with no significant statistical difference between them (z=.35, p=.73). The fluorescence exhibited an acceptable discrimination capacity (AUROC=0.78), although it was lower than the others. The positive likelihood ratio for the fluorescence was only 2.32, compared to 20.58 for the intraoral image and 58.11 for the ICDAS. Conclusion Both methods and the ICDAS exhibited an adequate clinical performance, although the ICDAS and intraoral image were more effective than the fluorescence.
DOI: 10.6084/m9.figshare.7513499.v1
title: Evaluation of the anti-cariogenic potential and bond strength to enamel of different fluoridated materials used for bracket bonding

description: Abstract Objective To evaluate the in vitro and in situ anti-cariogenic potential and bond strength to enamel of materials containing fluoride (F), used for bracket bonding: Transbond XT (GT, negative control), Transbond Plus Color Change (GTF), Transbond-Self-Etching Primer (GSAF) and Vitremer (GV, positive control). Material and method In the in vitro study, the specimens were premolars with bonded brackets (n=12/group). After pH cycling, the F release, bond strength, fracture mode and presence of white spot lesions were assessed. In the in situ study, the specimens were enamel fragments with bonded brackets (n=12/group). Twelve volunteers wore palatal appliances in 4 phases, with cariogenic challenge. Bond strength, fracture mode and change in surface hardness (%SH) were determined. Result Relative to the in vitro study, F release (ppm) was: GT=0.257±0.068c; GTF=0.634±0.100b; GSAF=0.630±0.067b; GV=2.796±1.414a. Only GV showed no white spot lesions. Bond strength values (MPa) were GT=7.62±7.18a; GTF=5.15±6.91ab; GSAF=3.42±2.97bc; GV=2.87±2.09c. Adhesive fracture was the most frequent type, except for GTF. In the in situ study, %SH was: GT=-56.0±18.3a; GTF=-57.6±11.9a; GSAF=-57.1±11.3a; GV=-52.4±25.8a. Bond strength values were GT=9.5±4.4a; GTF=11.1±5.9a; GSAF=13.2± 6.6a; GV=6.6±4.0a. Cohesive fracture in material was the most frequent type, except for GTF. Conclusion Vitremer (GV) showed the highest anti-cariogenic potential in the in vitro study. However, it was not confirmed by the in situ study. Regarding bond strength values from the in situ study, all materials were shown to be adequate for clinical practice.
DOI: 10.6084/m9.figshare.7513499
title: Evaluation of the anti-cariogenic potential and bond strength to enamel of different fluoridated materials used for bracket bonding

description: Abstract Objective To evaluate the in vitro and in situ anti-cariogenic potential and bond strength to enamel of materials containing fluoride (F), used for bracket bonding: Transbond XT (GT, negative control), Transbond Plus Color Change (GTF), Transbond-Self-Etching Primer (GSAF) and Vitremer (GV, positive control). Material and method In the in vitro study, the specimens were premolars with bonded brackets (n=12/group). After pH cycling, the F release, bond strength, fracture mode and presence of white spot lesions were assessed. In the in situ study, the specimens were enamel fragments with bonded brackets (n=12/group). Twelve volunteers wore palatal appliances in 4 phases, with cariogenic challenge. Bond strength, fracture mode and change in surface hardness (%SH) were determined. Result Relative to the in vitro study, F release (ppm) was: GT=0.257±0.068c; GTF=0.634±0.100b; GSAF=0.630±0.067b; GV=2.796±1.414a. Only GV showed no white spot lesions. Bond strength values (MPa) were GT=7.62±7.18a; GTF=5.15±6.91ab; GSAF=3.42±2.97bc; GV=2.87±2.09c. Adhesive fracture was the most frequent type, except for GTF. In the in situ study, %SH was: GT=-56.0±18.3a; GTF=-57.6±11.9a; GSAF=-57.1±11.3a; GV=-52.4±25.8a. Bond strength values were GT=9.5±4.4a; GTF=11.1±5.9a; GSAF=13.2± 6.6a; GV=6.6±4.0a. Cohesive fracture in material was the most frequent type, except for GTF. Conclusion Vitremer (GV) showed the highest anti-cariogenic potential in the in vitro study. However, it was not confirmed by the in situ study. Regarding bond strength values from the in situ study, all materials were shown to be adequate for clinical practice.
DOI: 10.6084/m9.figshare.7509119
title: Anesthetic effectiveness evaluation of Morpheus® through intrasseptal technical CaZOE in pulpotomy of deciduous teeth: pilot study

description: Abstract Introduction The fear of pain is one of the main reasons why many patients avoid dental treatment, especially children. In several pediatric dentistry procedures, the use of local anesthetic is necessary. Morpheus® system proposes an insertion of the needle painlessly and satisfactory anesthesia with lower volume of local anesthetic. With the CaZOE technique, the patient realizes the pressure before the pain, thus being able to avoid it. Objective To evaluate the anesthetic efficacy of Morpheus® through intrasseptal technical CaZOE in pulpotomy of mandibular’s primary molars. Material and method Nineteen volunteers were selected according to the inclusion and exclusion criteria. The study was conducted in a single session using 0.9 mL of Articaine 4% with epinephrine 1: 100,000 through anesthetic CaZOE technique, using the Morpheus®. This was carried out by a single operator not involved in the evaluation of anesthesia parameters and followed the manufacturer's recommendations. For data analysis, descriptive statistics was performed. Result Of the 19 volunteers, 63% were female and 37% male. In just over half of the sample (63%), was successful in performing the procedure. Cases of failure (37%) occurred during coronary opening and removal of pulp. Conclusion The efficacy of Morpheus® through intrasseptal technical CaZOE in pulpotomy of mandibular’s primary molars was noted in 63% of the sample. Further studies should be carried out to prove this efficacy.
DOI: 10.6084/m9.figshare.7509119.v1
title: Anesthetic effectiveness evaluation of Morpheus® through intrasseptal technical CaZOE in pulpotomy of deciduous teeth: pilot study

description: Abstract Introduction The fear of pain is one of the main reasons why many patients avoid dental treatment, especially children. In several pediatric dentistry procedures, the use of local anesthetic is necessary. Morpheus® system proposes an insertion of the needle painlessly and satisfactory anesthesia with lower volume of local anesthetic. With the CaZOE technique, the patient realizes the pressure before the pain, thus being able to avoid it. Objective To evaluate the anesthetic efficacy of Morpheus® through intrasseptal technical CaZOE in pulpotomy of mandibular’s primary molars. Material and method Nineteen volunteers were selected according to the inclusion and exclusion criteria. The study was conducted in a single session using 0.9 mL of Articaine 4% with epinephrine 1: 100,000 through anesthetic CaZOE technique, using the Morpheus®. This was carried out by a single operator not involved in the evaluation of anesthesia parameters and followed the manufacturer's recommendations. For data analysis, descriptive statistics was performed. Result Of the 19 volunteers, 63% were female and 37% male. In just over half of the sample (63%), was successful in performing the procedure. Cases of failure (37%) occurred during coronary opening and removal of pulp. Conclusion The efficacy of Morpheus® through intrasseptal technical CaZOE in pulpotomy of mandibular’s primary molars was noted in 63% of the sample. Further studies should be carried out to prove this efficacy.