scholarly journals A Two-Year Comparative Evaluation of Clinical Performance of a Nanohybrid Composite Resin to a Flowable Composite Resin

2021 ◽  
Vol 12 (3) ◽  
pp. 51
Author(s):  
Carelle Badr ◽  
Gianrico Spagnuolo ◽  
Francesco Amenta ◽  
Carlos Khairallah ◽  
Syed Sarosh Mahdi ◽  
...  
Keyword(s):  
Composite Resin ◽  
Clinical Performance ◽  
Class I ◽  
Posterior Teeth ◽  
Flowable Composite ◽  
Significant Difference ◽  
Surface Staining ◽  
Nanohybrid Composite ◽  
Chi Square Analysis ◽  
Over Time

Objective: This prospective in vivo study aimed to compare the clinical behavior of a flowable composite resin (Genial Universal Flo, GC) and a nanohybrid universal composite resin (Tetric Evo Ceram, Ivoclar Vivadent) used in Class I and II direct esthetic restorations in posterior teeth. Methods: A total of 108 Class I and II direct restorations were performed in patients aged between 20 and 60 years. The originality of this study lies in the fact that both materials were placed in pairs, in the same clinical environment (i.e., the same patient and the same type of tooth). The evaluations were performed now of restoration and after 2-weeks, 6-, 12-, and 24-months intervals using clinical examination, clinical photographs, and radiological examination, according to modified USPHS criteria. Statistical analysis was performed using the Fisher exact test and chi-square analysis. Results: At baseline, the universal composite resin showed better esthetic properties such as surface luster, surface staining marginal staining. Both materials regressed significantly over time with no significant difference between groups. Conclusions: Both flowable and nanohybrid composite resins exhibit acceptable clinical performance. The present 24 months of evaluation of different composites showed that the G-ænial Universal Flo could be an effective esthetic material for posterior restoration. No significant difference between both materials over time concerning surface luster, surface staining, and marginal staining.

scholarly journals Clinical Evaluation Of Direct Composite Resin And Indirect Micro Ceramic Composite Resin Restorations In Class-I Cavity Of Permanent Posterior Teeth

2019 ◽  
Vol 3 (2) ◽  
pp. 109
Author(s):  
AHM Zakir Hossain Shikder ◽  
Kamrun Naher Shomi ◽  
Nushrat Saki ◽  
Ferdousi Begum ◽  
Kazi Hossain Mahmud ◽  
...  
Keyword(s):  
Ceramic Composite ◽  
Composite Resin ◽  
Clinical Performance ◽  
Occlusal Surface ◽  
Class I ◽  
Posterior Teeth ◽  
Polymerization Shrinkage ◽  
Composite Restorations ◽  
Composite Resin Restorations ◽  
Ceramic Inlay

Background:Previous studies have indicated that the clinical performance of direct composite restoration mainly depends on the polymerization shrinkage. The use of micro ceramic inlay technique has proved to be elegant approach to overcome the polymerization shrinkage and improve the marginal adaptation, reduce wear and leakage of posterior restorations.Objectives:To compare the clinical performance between direct composite restorations and indirect micro ceramic composite restorations in occlusal surface of permanent posterior teethof class-I cavity. Results: The result of this study showed that there was no statisticallysignificant difference between two groups in the treatment of occlusal surface ofclass-I cavity of permanent posterior teeth (p > 0.05). It was concluded that indirect micro ceramic composite resin shows no better clinical efficacy than that of direct composite resin in occlusal surface of class-I cavity of permanent posterior teethInternational Journal of Human and Health Sciences Vol. 03 No. 02 April’19. Page: 109-115

Three-year Randomized Prospective Clinical Trial of Class II Restorations Using Flowable Bulk-fill Resin Composites

2021 ◽  
Author(s):  
MD Moda ◽  
AF Briso ◽  
IAE Hoshino ◽  
SMB Frascino ◽  
PH Santos ◽  
...  
Keyword(s):  
Clinical Performance ◽  
Resin Composite ◽  
Oral Care ◽  
Class Ii ◽  
Resin Composites ◽  
Single Bond ◽  
Surface Staining ◽  
Equality Test ◽  
Over Time

SUMMARY Objectives: This randomized, prospective, and split-mouth study aimed to evaluate flowable bulk-fill resin composites in class II restorations and to compare with a conventional layering technique after a 3-year follow-up. Methods and Materials: Fifty-three subjects received three class II restorations according to the restorative systems: conventional microhybrid resin composite (PA, Peak Universal + Amelogen Plus, Ultradent), flowable bulk-fill and nanoparticulate resin composites (ABF, Adper Single Bond 2 + Filtek Bulk Fill Flow + Filtek Z350XT, 3M Oral Care), and flowable bulk-fill and microhybrid resin composites (XST, XP Bond + SDR + TPH3, Dentsply). The clinical performance and interproximal contacts were evaluated. Statistical analyses were performed using the equality test of two proportions, Logistic regression analysis, Friedman, Wilcoxon, Kruskal-Wallis, and Mann-Whitney tests (α=0.05). Results: Forty-seven patients were evaluated at 3 years. XST bulk-fill restorative system presented higher marginal discoloration than PA, and the opposite occurred for surface staining. All restorative systems resulted in decreased interproximal contacts, occurring early for XST. Conclusions: Although the restorative system using incremental technique presented better performance for marginal discoloration, one of the restorative systems that used flowable bulk-fill resin composite (XST) showed the lowest surface staining. All restorative systems had decreased proximal contact over time.

scholarly journals A pilot trial on lithium disilicate partial crowns using a novel prosthodontic Functional Index for Teeth (FIT)

2019 ◽  
Author(s):  
Edoardo Ferrari Cagidiaco ◽  
Simone Grandini ◽  
Cecilia Goracci ◽  
Tim Joda
Keyword(s):  
Clinical Performance ◽  
Pilot Trial ◽  
Lithium Disilicate ◽  
Bone Biology ◽  
Functional Index ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Group 2 ◽  
Technical Complication ◽  
Level Of Significance

Abstract Background Lithium disilicate is now a well accepted material for indirect restorations. The aim of this trial was to evaluate two lithium disilicate systems using a novel prosthodontic Functional Index for Teeth (FIT).Methods Partial adhesive crowns on natural abutment posterior teeth were made on sixty patients (clinicaltrial.gov # NCT 01835821). Patients were divided into two groups: Group 1 e.max press (Ivoclar), Group 2 LiSi press (GC Co.). The restorations were followed-up for 3 years. The FIT is composed of seven variables (Interproximal, Occlusion, Design, Mucosa, Bone, Biology and Margins), each of them to be evaluated using a 0-1-2 scoring scheme. The Mann-Whitney ‘U’ test was applied. The level of significance was set at p<0,05.Results Survival rate was 100%, without any biological or technical complication. No statistically significant difference emerged between the two groups in any of the assessed variables (p>0.05).Conclusions The results showed that it is possible to evaluate the clinical performance of partial crowns using FIT. The FIT proved to be an effective tool to foresee the possible risk of failures and to monitor the performance of the restorations at each recall. The two lithium dislocate materials showed same results after 3 years of clinical service.

scholarly journals Comparison of arch width, alveolar width and buccolingual inclination of teeth between Class II division 1 malocclusion and Class I occlusion

2012 ◽  
Vol 83 (2) ◽  
pp. 246-252 ◽  
Author(s):  
Rui Shu ◽  
Xianglong Han ◽  
Yating Wang ◽  
Hui Xu ◽  
Dongqing Ai ◽  
...  
Keyword(s):  
Class Ii ◽  
Class I ◽  
Posterior Teeth ◽  
Mandibular Arch ◽  
Arch Width ◽  
Significant Difference ◽  
Division 1 ◽  
Maxillary Premolars ◽  
Mandibular Posterior Teeth ◽  
Class Ii Division 1

ABSTRACT Objective: To compare the arch width, alveolar width, and buccolingual inclination of maxillary and mandibular posterior teeth between Class II division 1 malocclusion and Class I occlusion. Materials and Methods: Forty-five subjects with Class I occlusion and 45 subjects with Class II division 1 malocclusion were selected to measure the maxillary and mandibular arch width and alveolar width of premolars and first molars with digital caliper. Buccolingual inclination of maxillary and mandibular premolars and first molars were measured with a modified universal bevel protractor. Results: All of the posterior teeth in both groups were lingually tilted. The maxillary premolars and first molars were significantly more lingually tilted (P &lt; .05) in Class II division 1 malocclusion than in Class I occlusion. Mandibular first premolars were significantly less lingually tilted in Class II division 1 malocclusion than in Class I occlusion. No significant difference of buccolingual inclination was found in mandibular second premolars and first molars between the two groups. No significant difference in maxillary and mandibular arch width and alveolar width was found between the two groups. Conclusions: Buccolingual inclination rather than arch width and alveolar width plays an important role in transverse discrepancy of Class II division 1 malocclusion.

scholarly journals Co-Blend Application Mode of Bulk Fill Composite Resin

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2504
Author(s):  
Mohammad Al-Nabulsi ◽  
Alaa Daud ◽  
Cynthia Yiu ◽  
Hanan Omar ◽  
Salvatore Sauro ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Degree Of Conversion ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Force Microscopy ◽  
Flowable Composite ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Nanoindentation Hardness

Objective: To evaluate the effect of a new application method of bulk-fill flowable composite resin material on bond-strength, nanoleakage, and mechanical properties of dentine bonding agents. Materials and methods: Sound extracted human molars were randomly divided into: manufacturer’s instructions (MI), manual blend 2 mm (MB2), and manual blend 4 mm (MB4). Occlusal enamel was removed and flattened, dentin surfaces were bonded by Prime & Bond universal (Dentsply and Optibond FL, Kerr). For the MI group, adhesives were applied following the manufacturer’s instructions then light-cured. For MB groups, SDR flow+ bulk-fill flowable composite resin was applied in 2- or 4-mm increment then manually rubbed by a micro brush for 15 s with uncured dentine bonding agents and the mixture was light-cured. Composite buildup was fabricated incrementally using Ceram.X One, Dentsply nanohybrid composite resin restorative material. After 24-h water storage, the teeth were sectioned to obtain beams of about 0.8 mm2 for 24-h and thermocycled micro-tensile bond strength at 0.5 mm/min crosshead speed. Degree of conversion was evaluated with micro-Raman spectroscopy. Contraction gaps at 24 h after polymerization were evaluated and atomic force microscopy (AFM) nano-indentation processes were undertaken for measuring the hardness across the interface. Depth of resin penetration was studied using a scanning electron microscope (SEM). Bond strength data was expressed using two-way ANOVA followed by Tukey’s test. Nanoindentation hardness was separately analyzed using one-way ANOVA. Results: Factors “storage F = 6.3” and “application F = 30.11” significantly affected the bond strength to dentine. For Optibond FL, no significant difference in nanoleakage was found in MI/MB4 groups between baseline and aged specimens; significant difference in nanoleakage score was observed in MB2 groups. Confocal microscopy analysis showed MB2 Optibond FL and Prime & Bond universal specimens diffusing within the dentine. Contraction gap was significantly reduced in MB2 specimens in both adhesive systems. Degree of conversion (DC) of the MB2 specimens were numerically more compared to MS1 in both adhesive systems. Conclusion: Present study suggests that the new co-blend technique might have a positive effect on bond strengths of etch-and-rinse adhesives to dentine.

scholarly journals Effect of whitening dentifrices on the surface roughness of a nanohybrid composite resin

2016 ◽  
Vol 10 (02) ◽  
pp. 170-175 ◽  
Author(s):  
Gabriela Migliorin da Rosa ◽  
Luciana Mendonça da Silva ◽  
Márcio de Menezes ◽  
Hugo Felipe do Vale ◽  
Diego Ferreira Regalado ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Composite Resin ◽  
Wilcoxon Test ◽  
Control Group ◽  
Mean Values ◽  
Short Period ◽  
Significant Difference ◽  
Before And After ◽  
Nanohybrid Composite ◽  
One Way Anova

ABSTRACT Objectives: The present study verified the influence of whitening dentifrices on the surface roughness of a nanohybrid composite resin. Materials and Methods: Thirty-two specimens were prepared with Filtek™ Z350 XT (3M/ESPE) and randomly divided into four groups (n = 08) that were subjected to brushing simulation equivalent to the period of 1 month. The groups assessed were a control group with distilled water (G1), Colgate Total 12 Professional Clean (G2), Sensodyne Extra Whitener Extra Fresh (G3), and Colgate Luminous White (G4). A sequence of 90 cycles was performed for all the samples. The initial roughness of each group was analyzed by the Surface Roughness Tester (TR 200-TIME Group Inc., CA, USA). After the brushing period, the final roughness was measured, and the results were statistically analyzed using nonparametric Kruskal–Wallis and Dunn tests for intergroup roughness comparison in the time factor. For intragroup and “Δ Final − Initial” comparisons, the Wilcoxon test and (one-way) ANOVA were, respectively, performed (α = 0.05). Results: The roughness mean values before and after brushing showed no statistically significant difference when the different dentifrices were used. None of the dentifrices analyzed increased significantly the nanohybrid composite resin surface roughness in a 1 month of tooth brushing simulation. Conclusions: These results suggest that no hazardous effect on the roughness of nanohybrid composite resin can be expected when whitening dentifrices are used for a short period. Similar studies should be conducted to analyze other esthetic composite materials.

One-Year Clinical Evaluation of Composite Restorations in Posterior Teeth: Effect of Adhesive Systems

2012 ◽  
Vol 37 (6) ◽  
pp. E30-E37 ◽  
Author(s):  
RH Sundfeld ◽  
RS Scatolin ◽  
FG Oliveira ◽  
LS Machado ◽  
RS Alexandre ◽  
...  
Keyword(s):  
Composite Resin ◽  
Clinical Performance ◽  
Adhesive System ◽  
Composite Resins ◽  
Adhesive Systems ◽  
Posterior Teeth ◽  
Significance Level ◽  
Marginal Integrity ◽  
Composite Resin Restorations ◽  
One Year

SUMMARY This clinical study assessed the performance of posterior composite resins applied with the Adper™ Single Bond Plus (SB) and Adper™ Scotchbond SE (SE) adhesive systems and Filtek™ Supreme Plus composite resin, using modified US Public Health Service criteria. A total of 97 restorations were placed in posterior teeth by two calibrated operators. Application of the materials followed manufacturers' instructions. The restorations were evaluated by two examiners at baseline and after one year. Statistical analyses were conducted using the proportion test at a significance level of 5% (p&lt;0.05). All the restorations evaluated (ie, 100%) received an alpha rating for the criteria of marginal discoloration and marginal integrity at baseline. At one year, for marginal discoloration, 64.6% of SB and 61.2% of SE received an alpha rating. For marginal integrity, 72.9% of SB and 77.6% of SE received an alpha rating. The other restorations received bravo ratings for both criteria. None of the teeth that received the restorative systems presented caries lesions around the restorations. A total of eight teeth presented postoperative sensitivity one week after baseline, five with SB and three with SE; the symptom had disappeared one year later. One year later, composite resin restorations using either adhesive system showed satisfactory clinical performance.

A Two-year Clinical Comparison of Three Different Restorative Materials in Class II Cavities

2020 ◽  
Vol 45 (1) ◽  
pp. E32-E42 ◽  
Author(s):  
H Balkaya ◽  
S Arslan
Keyword(s):  
Composite Resin ◽  
Clinical Performance ◽  
Class Ii ◽  
High Viscosity ◽  
Glass Ionomer ◽  
Secondary Caries ◽  
Significant Difference ◽  
Composite Resin Restorations ◽  
Postoperative Sensitivity ◽  
Resin Restorations

SUMMARY Objectives: The aim of this clinical study was to evaluate the clinical performance of Class II restorations of a high-viscosity glass ionomer material, of a bulk-fill composite resin, and of a microhybrid composite resin. Methods and Materials: One hundred nine Class II restorations were performed in 54 patients using three different restorative materials: Charisma Smart Composite (CSC; a conventional composite resin), Filtek Bulk Fill Posterior Restorative (FBF; a high-viscosity bulk-fill composite), and Equia Forte Fil (EF; a high-viscosity glass ionomer). Single Bond Universal adhesive (3M ESPE, Neuss, Germany) was used for both conventional and bulk-fill composite resin restorations. The restorations were evaluated using modified US Public Health Service criteria in terms of retention, color match, marginal discoloration, anatomic form, contact point, marginal adaptation, secondary caries, postoperative sensitivity, and surface texture. The data were analyzed using the chi-square, Fisher, and McNemar tests. Results: Eighty-four restorations were evaluated at two-year recalls. There were clinically acceptable changes in composite resin restorations (FBF and CSC). In addition, no statistically significant difference was observed between the clinical performances of these materials in terms of all criteria (p&gt;0.05). However, there was a statistically significant difference between the EF group and the FBF and CSC groups in all parameters except for marginal discoloration, secondary caries, and postoperative sensitivity (p&lt;0.05). Conclusions: The tested bulk-fill and conventional composite resins showed acceptable clinical performance in Class II cavities. However, if EF is to be used for Class II restoration, its use should be carefully considered.

National trends in local excision and esophagectomy for cT1N0 esophageal cancer.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 62-62 ◽  
Author(s):  
Emily C. Sturm ◽  
Whitney Zahnd ◽  
John D. Mellinger ◽  
Sabha Ganai
Keyword(s):  
Esophageal Cancer ◽  
Regression Analysis ◽  
Local Excision ◽  
Clinical Characteristics ◽  
Cox Regression ◽  
Chi Square ◽  
Cox Regression Analysis ◽  
Significant Difference ◽  
Chi Square Analysis ◽  
Over Time

62 Background: Esophageal cancer management has evolved due to improvements in staging and treatment strategies. Endoscopic local excision presents an attractive option for definitive management of T1 cancers, avoiding the morbidity of esophagectomy. We hypothesized that for cT1N0 cancers, patients who underwent local excision would have lower survival compared to esophagectomy due to potential discordant staging. Methods: The National Cancer Database was queried for esophageal squamous cell carcinoma (SCC) and adenocarcinoma (AC) with AJCC T1N0 clinical stage who underwent local excision (n = 1625) or esophagectomy (n = 3255) between 1998 and 2012. Chi-square analysis was used to compare demographic and clinical characteristics by procedure. Chi-square trend analysis was performed to assess trends in procedure type over time. Cox Regression analysis was performed to assess survival by procedure controlling for demographic and clinical characteristics. Results: Between 1998 and 2012, the proportion of patients who underwent local excision increased from 12% to 50% for all patients (p < 0.001); from 17% to 40% for SCC patients (p < 0.001); and from 9% to 51% for AC patients (p < 0.001). Surgical procedure varied significantly by demographic, socioeconomic status, facility, and tumor-related factors. 65% of cT1N0 cancers had concordant clinical and pathological staging after esophagectomy, with 11% having positive nodal disease; 44% were concordant after local excision. While no significant difference was seen in unadjusted survival, adjusted Cox Regression analysis indicated worse survival after esophagectomy compared to local excision for all cases (HR 1.67; 95% CI, 1.40-2.00) and for ACs with concordant staging (HR 1.54; 95% CI, 1.11-2.14). Conclusions: Local excision for cT1N0 esophageal cancer has increased over time. Staging concordance for esophagectomy is seen in two-thirds of cases. Contrary to our hypothesis, patients undergoing local excision for T1N0 cancers have better overall survival than those undergoing esophagectomy, which may reflect early differences in mortality and/or selection bias. As this study was unable to distinguish T1a from T1b, further analysis is warranted.

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