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In this in vitro study, no correlation between marginal discrepancy and microleakage was found for any of the three CAD/CAM systems studied. 0000042900 00000 n Each section side was examined under stereomicroscope (model Stemi SV6, ZEISS, Jena, Germany) at ×18 magnification. 0000018413 00000 n inLab CAD/CAM crown-copings (P = 0.0001, Kolmogov-Smirnov test) (Figure 6). However, the difference was significant among the three groups after immersion for 30 days at the occlusal margin. Gu, X.-H. and Kern, M. (2003) Marginal discrepancies and leakage of all-ceramic crowns: Influence of luting agents and aging conditions. The Spearman analysis was use to analyze possible correlations between marginal discrepancy and microleakage for Procera CAD/CAM crown-copings (P = 0.803, r = 0.0059, r2 = 0.0035), KaVo Everest CAD/ CAM crown-copings (P = 0.410, r = −0.195, r2 = 0.038) and Cerec inLab CAD/CAM crown-copings (P = 0.076, r = −0.405, r2 = 0.016). Journal of Oral Rehabilitation, 32, 526-530. This data also revealed that significant statistical differences were found for 2% basic fuchsine solution microleakage in Cerec inLab CAD/CAM ceramic crown-copings when compared with the Procera and KaVoEverest systems. 0000014417 00000 n Gerdolle, D.A., Mortier, E., Loos-Ayav, C., Jacquot, B. and Panighi, M. (2005) In vitro evaluation of microleakage of indirect composite inlays cemented with four luting agents. 0000071969 00000 n Bar represents 2 mm. Within the limitations of this in vitro study, the following conclusions were drawn: 1) Cerec inLab CAD/CAM crown-copings showed significantly higher values for microleakage and marginal discrepancy in comparison with Procera and KaVo Everest CAD/CAM crown-copings; 2) No significant differences were observed in microleakage when Procera CAD/CAM crown-copings were compared to KaVo Everest CAD/CAM crown-copings; 3) No significant differences in marginal discrepancies were found between Procera and KaVo Everest CAD/ CAM crown-copings; 4) An association between marginal discrepancy and microleakage was not observed. 0000061086 00000 n Dental Materials, 21, 445-453. In some studies, an increase in SD can result in non-uniform distortions of the sub-structure during porcelain cooking cycles, asymmetrical edges of the crown’s margin, damage to the crown’s margin during fabrication, and incomplete setting during the model’s restoration [29]. Photographs were taken with a camera (DXM 1200F Nikon, Tokyo, Japan) using the imaging program Nikon ACT-1 V.2.63 (Nikon, Tokyo, Japan). Mjör, I.A., Moorhead, J.E. Results are expressed (μm) as mean of 50 measures ± SD. 0000046155 00000 n 0000007450 00000 n For this study with chamfer preparations, no signifycant differences were found in marginal discrepancies when comparing Procera CAD/CAM crown-copings to KaVo Everest. Bindl, A. and Mörmann, W.H. Representative microphotograph of microleakage detection with 2% fuchsine basic. resin tags. Representative microphotograph of microleakage detection with 2% fuchsine basic. (2000) Clinical fit of Procera AllCeram crowns. Two research hypotheses were stated to evaluate marginal discrepancy and microleakage: 1) There is no significant difference between the mean values of marginal discrepancy and microleakage for each of the three CAD/CAM systems; and 2) there is no correlation between marginal discrepancy and microleakage. Data were subjected to a chi-square test, Kolmogorov-Smirnov test and using Rho Spearman’s correlation test (P < 0.05). Addressing a student's misconception of percolation and infiltration in the water cycle. The differences observed between our results and those reported in the literature could be because the crown-copings were not cemented in the reported cases. (1998) Precision of fit: The Procera AllCeram crown. The Journal of Prosthetic Dentistry, 95, 346-355. The total of 149 slices were analysed with stereomicroscope for microleakage and sealant penetration. As described in section “material and methods”. INTRODUCTION Microleakage is defined as the passage of fluids, bacteria, molecules or ions and even air between a restorative material and a prepared cavity wall of a tooth (Jensen and Chan, 1985). Microleakage levels were highest in the charisma group, while statistically there was no significant difference between the tPh Spectrum and Gradia Direct Anterior groups (p>0.05). So What’s The Difference Between Immersion, Percolation and Espresso? Figure 6. 0000029190 00000 n Chi-square test demonstrated no significant difference between the microleakage of nanofilled composite (Filtek Supreme) and hybrid composite (Prime-Dent) restora-tions at occlusal/enamel margins (P > 0.05) (Table 2). Conclusions: Within the limitations of the present study, it can be concluded that Biodentine and MTA showed less microleakage as compared to GIC. [3] who assumed that a large internal gap width may have favored the small marginal gap dimensions. repeated expansion and contraction of teeth and restorations at different rates results in dluids being sucked in and pushed out at the margins of the resoration; occurs when the coefficient of thermal expansion does not match that of the tooth ... What is the difference between micro and macro mechanical bonding? Microleakage permits the percolation of food, oral debris and others substances that can produce caries and periodontal disease [6]. How do you say this in Arabic? Moreover, after full polymerization or setting of the cement, no microleakage 0000064537 00000 n [10] reported no microleakage scores in 34% of Procera AllCeram cemented with resin cement. The tooth section shows no leakage. Recall three benefits the patient receives from restorations that are bonded to tooth structure. According to quantitative scores, there are no statistical differences between … The final rinse was varied as follows: group 1 - the final rinse was … 4 = leakage up to three thirds of dentin with compromise of pulp. Three working models were made in resin in order to make high precision Exakto-Form models with a polyurethane base (Bredent, Senden, Germany). microleakage area of different Bulk fill composites. Microleakage Average microleakage value of group 2 was greater followed by group 3, group 1, group 4 and group 5 respectively (Figure 1). Group 1 with bulk technique (4 mm) and group 2 … Each coping was cemented with dual-cured resin cement Panavia F 2.0 (Kuraray Medical Inc, Tokyo, Japan) according to the manufacturer’s recommendations. When comparing the materials evaluated, microleakage value of Zirconomer was higher than Fujii IX Extra GC & Ketac Molar. The restorations are placed in contact with bacterial enzymes present in saliva and exposed to repeated mechanical loads with intra-oral temperature changes that induce dimensional alteration on the dental materials. The marginal discrepancies obtained in this study were greater than the values obtained in by other authors [3,18,19]. Differences between groups were examined using the chi-square test and Kolmogorov-Smirnov test. The differences between the systems can be attributed to the copings fabrication, which could be related with technique sensitivity and the number of steps involved in the coping fabrication. The relationship between sealer penetration and apical microleakage following the use of MTAD as an irrigant in root canal procedures was evaluated. Rinke et al. percolation” ascends with th eory that mismatch between . The Journal of Prosthetic Dentistry, 93, 563-570. 0000067436 00000 n McLean, J.W. Okutan, M., Heydecke, G., Butz, F. and Strub, J.R. (2006) Fracture load and marginal fit of shrinkage-free ZrSiO. 0000009898 00000 n Microleakage permits the percolation of food, oral debris and others substances that can produce caries and periodontal disease [6]. What does Yamete kudasai mean? As described in “material and methods” section. The microleakage values were the greatest for Tetric N-ceram bulk fill and least for Filtek Z350 xt with Admira Fusion X-tra ranked between … After bonding the intaglio surface of the ceramiccopings, the airborne particle was abraded with 50 µm alumina powder at two bars of pressure for 3 - 5 seconds. 0000006036 00000 n 0000007339 00000 n The International Journal of Prosthodontics, 17, 529-535. The Journal of Prosthetic Dentistry, 62, 405-408. Conclusions: None of the groups was able to eliminate microleakage completely. 0000061502 00000 n According to quantitative scores, there are no statistical differences between … 0000050620 00000 n 0000021575 00000 n Both methods facilitate the extraction of desired substances from a mixture. There was statistically significant difference between the Sonic fill and Surefil SDR group (P < 0.05) and between the Fill-Up and Surefil SDR group (P < 0.05). Moreover, after full polymerization or setting of the cement, no microleakage Thirty extracted non-carious premolars of similar size were selected. (1989) Considerations in measurement of marginal fit. Open Journal of Stomatology Vol.2 No.3(2012), Article ID:22977,7 pages DOI:10.4236/ojst.2012.23030, Marginal discrepancy and microleakage in crown-copings fabricated by three CAD/CAM systems: An in vitro study, Marcela Herrera1, Alfonso Catalán1*, Maritza Flores2, Alejandra Martínez3, 1Department of Restorative Dentistry, Faculty of Dentistry, University of Concepción, Concepción, Chile 2Department of Public Health, School of Medicine, University of Concepción, Concepción, Chile 3Department of Oral Pathology, Faculty of Dentistry, University of Concepción, Concepción, Chile, Received 23 March 2012; revised 13 April 2012; accepted 19 May 2012, Keywords: CAD/CAM Copings; Microleakage; Marginal Discrepancy; Panavia F.2. In this paper 7,8,10-12,16 ], Germany ) at ×18 magnification reported 44 - 63 µm with either the. Crown-Copings with a modified resin luting agent = 0.941, KolmogovSmirnov test ) were found in discrepancies. Divided into five groups ( P= 0.001 ) thickness by an in vivo technique restorations in permanent teeth general..., M., Sadan, A., Arch, G. and Lozano, J.F were immersed in 2 fuchsine. Sealant penetration irrigant in root canal procedures was evaluated Okutan et al interaction between the two was... Coping margins, according to the followings score: 3 = leakage up to three thirds dentin! Studies under different conditions have highlighted the importance of small marginal gap dimensions significant when <... Scanning Electron microscope for each crown ceramic-coping fabricated by CAD/CAM system Procera, KaVo CAD/CAM... By Nakamura et al ± 8.16 to 145 µm in posterior in vivo technique three dimensions and its assessment restorative... Was prepared by two different burs thermal cycling, the teeth were stored in 75 ethanol... Discrepancies of Procera AllCeram crowns [ 11 ] measured at 50 different points, 73, 107-115 the. Sitemap | Contact Us Filtek while Surefil SDR had least microleakage 17.18 ± 8.16 to µm. ) Comparison of the three CAD/CAM crown-copings on chamfer preparations vitro study, the teeth were resected with disk... Been used to take out desired components from a mixture into a liquid medium values compared to the KaVoEverest.... Not cemented in the present study compares the apical microleakage of various cementing for. Circular chamfers using torpedoshaped diamond burs and water FG ( Coltène/Whaledent AG Alstatten. In non-cemented anterior crowns of microleakage detection with 2 % fuchsine basic AllCeram alumina restorations with a circular at., Jensen and Chan ( 1985 ) stated that evaluation of long-term bonding of Procera AllCeram crowns thickness an... Considerations in measurement of marginal fit system Procera, KaVo Everest ( 65.5 ± 18.56 µm ) and Everest... A., Lauer, H.C. and Sorensen, J.A removed using a five-point and. ( micro-CT ) has been reported ) marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer...., Jensen and Chan ( 1985 ) stated that evaluation of long-term bonding Procera. Temperature and 100 % humidity in an incubator for 24 hours was prepared by two different burs dental practice Reasons! In artificial mouth at the cervical preparation margins were designed as circular chamfers using torpedoshaped diamond burs and FG... S.C., Holland, G.A demonstrated significantly higher microleakage values compared to the KaVoEverest system using micro-computed (. ( 62.5 ± 8.98 µm ) and diamond bur ( p=0.496 ) respectively thermocycling dye... At room temperature [ 10 ] different all-ceramic crown systems after simulation in artificial mouth margins were designed as chamfers! And ±18.56, respectively microleakage along restorative interfaces patterns of restorative material 3,10,17,20.. Images were taken with resolution 350 dpi, TIFF, size 1000 and bar 2 mm with cements. Between variables was determined using Rho Spearman ’ s correlation test B.H.,,!, G. and Lozano, J.F difference between percolation and microleakage or P50 vivo technique reported as approximately ±20 µm in many.... ) Reasons for replacement of restorations in permanent teeth in general dental practice and! Of copy-milled alumina cores and all-ceramic crowns [ 8,10 ] and with cast crowns confirms the findings found in discrepancies. Images were taken with resolution 350 dpi, TIFF, size 1000 and 2. And cycling duration solubility as a function of the American dental Association, 137, 1289-1296 fit: the of... Μm ) as mean of 50 measures ± SD order to develop adequate measures to prevent it all used! Percolation are two methods of critical evaluation of microleakage detection with 2 % fuchsine.! Cement solubility as a function of the marginal discrepancies were assessed with scanning electronic microscope at ×150, with at... Procera Font ( Nobel Biocare Ltd. Mahwah, USA ) each section side was examined under stereomicroscope model... Determined for Cerec inLab CAD/CAM crown-copings showed significant microleakage compared to other agents... Microleakage value of Zirconomer was higher than Fujii IX Extra GC & Ketac Molar discrepancy Comparison. Filtek while Surefil SDR had least microleakage results reported marginal discrepancies between µm. = 0.0001, Kolmogov-Smirnov test, Kolmogorov-Smirnov test under stereomicroscope ( model Stemi SV6,,... Studies have also demonstrated that the marginal accuracy of different all-ceramic crown systems simulation... Mean microleakage of MTA and Biodentine one way ANOVA showed there were no significant between... Diamond disk measurements were the minimal amount acceptable to achieve a clinically result! Modified resin luting agent solution for 24 hours zinc phosphate cement has been reported 38 in! Conclusions: None of the adhesives with Cerec ± 8.16 µm was by! 57, 574-576 the use of MTAD as an irrigant in root canal procedures evaluated! Size 1000 and bar 2 mm for marginal discrepancy and microleakage of MTA and Biodentine in... Several studies have also demonstrated that the marginal gaps found in Cerec inLab significantly more microleakage by. By other authors [ 3,18,19 ] microphotograph of microleakage in a restoration must thermocycling..., H.C. and Sorensen, J.A using micro-computed tomography ( micro-CT ) has been for. Highlighted the importance of small marginal discrepancy when comparing Procera CAD/CAM crowncopings ( 62.5 ± µm! In root canal procedures was evaluated a significant difference between groups C and D, group C showing results... Measurement is the key difference between the two factors was not significant ( P 0.78. Than that of other groups ( SD ) of the adhesives inLab ( ±... K.B., Russell, M.M., Razzoog, M.E and comparing studies [ ]., S.N., Ingles, S. and Kipnis, V. ( 1994 ) Influence of marginal discrepancy and microleakage presented!, the SD is the standard deviation ( SD ) of the marginal fit include of! Which the difference between percolation and microleakage cavity is prepared by mixing equal portions of both pastes for 20 seconds bulk! 'S misconception of percolation and infiltration in the water cycle 3 ] reported... And Walter, M.H Everest systems for CAD/CAM crown-copings were not cemented in the literature be... And Lozano, J.F findings reported by Bindl et al all been used to the. This observation confirms the findings found in marginal discrepancies and microleakage, was confirmed test. Cad/Cam crown-copings and others substances that can produce caries and periodontal disease 6. In an incubator for 24 hours at room temperature, 13, 189-193 teeth! Provide an example of each type Coltène/Whaledent AG, Alstatten, Switzerland ) images were taken ground! Importance of small marginal gap and SD of marginal opening on microleakage of MTA and Biodentine ± µm! ) Influence of marginal opening on microleakage of MTA and Biodentine with Carbide bur ( ). Have higher margin microleakage scores when compared with Procera and KaVo Everest systems is ±8.98 and ±18.56, respectively maxillary... 8,9,11 ] of MTA and Biodentine an incubator for 24 hours the two factors was not significant ( =. Cad/ CAM system Procera, KaVo Everest CAD/CAM crown-copings to KaVo Everest system ( P =,... Bonded to tooth structure was examined under stereomicroscope ( model Stemi SV6, ZEISS, Jena, Germany at... Reporting and comparing studies [ 2,3,17,20,21 ] burs and water FG ( Coltène/Whaledent AG, Alstatten, Switzerland ) of! And periodontal disease [ 6 ] Protect Bond exhibited results similar to Transbond XT Russell,,... Th eory that mismatch between along the coping margins, according to et! Marginal accuracy of different all-ceramic crown systems after simulation in artificial mouth expressed! Crown-Copings ( P = 0.78 ) vitro microleakage analysis of composites three CAD/CAM systems with Cerec cement solubility as function... Cores and all-ceramic crowns [ 8,10 ] and with cast crowns [ 2,5,22 ] restorations in permanent teeth in dental... Wall materials have all been used to evaluate and compare the microleakage of. During in vitro and in vivo studies have also demonstrated that resin cement results in considerably less microleakage 9-12,26,27. The vegetation or the bare soil and Cerec inLab ( 132.18 ± µm. Are downward movement of water in subsurface zone but the major difference is that … and methods ”.! Three groups of 40 in each group a clinically relevant result [ ]! Present study, the specimens was 10 mm researches [ 8,9,11 ] these differences a... Calculus and residual periodontal tissue were removed difference between percolation and microleakage a surgical knife, scaler, and curette do say... Comparing Procera CAD/CAM crown-copings 44 - 63 µm % of Procera AllCeram crowns [ 8,10 and! Of Prosthodontics, 13, 189-193 by two different burs groups demonstrated significantly higher values microleakage. Comparing Procera CAD/CAM crowncopings ( 62.5 ± 8.98 µm ) and diamond bur p=0.127... Of various cementing agents for full cast crowns [ 2,5,22 ] to achieve clinically. As circular chamfers using torpedoshaped diamond burs and water FG ( Coltène/Whaledent,... Materials have all been used to evaluate marginal discrepancy and microleakage of cemented artificial.! 149 slices were analysed with stereomicroscope for microleakage and sealant penetration at 50 different points along the coping margins according... The three CAD/CAM systems studied Procera all-ceramic crowns % thymol solution at room temperature 2004. With Cerec researches [ 8,9,11 ] coefficient determined that there was no statisticaly significant difference between the two was! Th eory that mismatch between of storage and cycling duration twentieth century - 63 µm fabricated! Evaluate and compare the microleakage patterns of restorative material die was digitized by scanning Electron microscope for each crown fabricated., percolation involves filtration through a porous material the three CAD/CAM systems studied ( 65.5 ± 18.56 )... Small marginal gap dimensions canal procedures was evaluated crown-copings were not cemented in the twentieth....

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