difference between percolation and microleakage

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and Dahl, J.E. 0000021172 00000 n 0000048618 00000 n Holmes, J.R., Bayne, S.C., Holland, G.A. Representative microphotograph of microleakage detection with 2% fuchsine basic. In the present in vitro study, the highest marginal discrepancy median values for all test groups was found in Cerec inLab CAD/CAM crown-copings: 132 ± 27.75 µm. [14-16] Table 3 shows the mean microleakage … Explain the difference between micromechanical bonding and macromechanical bonding and provide an example of each type. inLab CAD/CAM crown-copings (P = 0.0001, Kolmogov-Smirnov test) (Figure 6). 0000004911 00000 n These differences are a constant source of confusion when reporting and comparing studies [2,3,17,20,21]. Zinc phosphate cement has been reported to have higher margin microleakage scores when compared to other luting agents [8,10,11]. According to qualitative scores, there is a significant difference between groups C and D, group C showing better results. When the surface cover is completely wet, subsequent rain must either penetrate the surface layers, if the surface is permeable, or run off the surface towards a stream channel if it is impermeable. test shows that there was a significant difference between the microleakage levels (overall, occlusal, gingival, and axial) in the three groups (P<0.01). 0000064454 00000 n 0000007587 00000 n Various and diverse technologies have been used to evaluate marginal discrepancy both in vitro and in vivo. Marginal discrepancies were assessed with scanning electronic microscope at ×150, with measurements at 50 different points. Fifty non-carious human molars, stored in 75% ethanol, were divided into five groups (N=10). polycarboxylate cements. 0000002430 00000 n [10] for Procera AllCeram crowns. Nevertheless, significant differences were found between the Procera and KaVo Everest systems for CAD/CAM crown-copings when compared with Cerec. Apical 3 mm of all the teeth were resected with diamond disk. 0000008008 00000 n No significant differences were found in marginal discrepancies for the Procera (62.58 ± 8.98 µm) and KaVo Everest systems (65.54 ± 18.56 µm), (P = 0.941). Mean values and SD of marginal discrepancy (μm) of ceramic-copings fabricated by CAD/CAM system Procera, KaVo Everest and Cerec inLab. (2004) In vivo validation of the historical in vitro thermocycling temperature range for dental materials testing. 0000006688 00000 n [25] reported that a microleakage tests conducted with dyes are not clinically relevant, even though dyes are one of the most common methods used to detect leakage under safe conditions [8,10-12,16]. 0000071969 00000 n Marginal discrepancies of Procera CAD/CAM crowncopings (62.5 ± 8.98 µm) and KaVo Everest (65.5 ± 18.56 µm) presented closer values. Bar represents 2 mm. Recall three benefits the patient receives from restorations that are bonded to tooth structure. 0000021575 00000 n 0000008595 00000 n The Cerec inLab system uses pre-sinterized aluminum oxide blocks VITA In-CeramAL 20, which were milled in the inLab apparatus (Sirona Dental Systems GMBH, Bensheim, Germany), using the die laser reader. 0000009863 00000 n The images were taken with resolution 350 dpi, TIFF, size 1000 and bar 2 mm. 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. Crim et al. The tooth section shows leakage up to two thirds of dentin. However, Cerec inLab CAD/CAM crown-copings demonstrated the highest leakage. Brewing coffee is all about balances. microleakage study as marginal percolation is caused by difference in the co-efficient of thermal expansion between the dental tissue and the restorative material and by the thermal expansion of fluid occupying crevice between tooth and restoration. In the present study, the degree of dye penetration was not influenced by the cement type because all the copings were air-abraded particles with 50 µm aluminum oxide and cemented with a dual-cured resin for the three CAD/CAM systems studied. Dyes, isotopes, lipopolysaccharides or cell wall materials have all been used [7,8,10-12,16]. When comparing the materials evaluated, microleakage value of Zirconomer was higher than Fujii IX Extra GC & Ketac Molar. [3] reported that the marginal gaps found in Cerec inLab CAD/CAM crowns were 43 ± 23 µm. The distance between the light tip and the specimens was 10 mm. The tooth section shows leakage up to one third of dentin. No significant difference was shown between direct and indirect techniques when the … After imaging, the data was processed. Subsequently, they were thermocycled in water bath of 5˚C and 55˚C (Model Haake C-10 W 15, Thermo; Karlsruhe, Germany) for 500 cycles [23], to simulate oral conditions. 0000072658 00000 n [19] found marginal discrepancies between 38 µm in non-cemented anterior crowns. 3. 0000019594 00000 n This data is in agreement with similar findings reported by Albert et al. Representative microphotograph of microleakage detection with 2% fuchsine basic. difference was observed between MTA and Biodentine with Carbide bur (p=0.127) and Diamond bur (p=0.496) respectively. 0000050620 00000 n Microleakage at the gingival margin was highest in the Charisma â¦ Bar represents 2 mm. 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. Albert et al. Thirty extracted non-carious premolars of similar size were selected. 0000029190 00000 n The cervical preparation margins were designed as circular chamfers using torpedoshaped diamond burs and water FG (Coltène/Whaledent AG, Alstatten, Switzerland). Several studies have also demonstrated that resin cement results in considerably less microleakage [9-12,26,27]. Coping fabrication was defined with a circular thickness at the cervical border level of 0.6 mm and occlusal thickness of 1mm. polycarboxylate cements. 0000022011 00000 n Endodontic microleakage or microfiltration refers to the percolation of fluids and micro-organisms at the interface of the obturation material and the walls of the root canal system. Marginal discrepancy evaluated by Scanning Electron Microscope for each crown ceramic-coping fabricated by CAD/CAM system. 0000042900 00000 n Teeth were then divided into three groups of 10 teeth each; each group received a different crowncopings, fabricated by the following CAD/CAM systems: Procera (Nobel Biocare AB, Goteborg, Sweden/Mahwah, NJ), KaVo Everest system (KaVo Dental Corp, Lake Zurich, Switzerland) and Cerec inLab (Sirona Dental System Ltd., Bensheim, Germany). Statistical analysis also revealed insignificant differences between groups B and C, while the difference was significant between these two groups and group A at the occlusal margin after immersion for 60 days (p<0.05). 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). sible microleakage permits the percolation of food, oral debris, and other substances that are potential irritants to the vital pulp.11-13 The gap between the restoration and the prepared tooth is filled with the cement, decreasing the significance of the gap. The aim of this in vitro study was to compare apical microfiltration of Resilon root canal â¦ Maceration involves soaking or steeping. who suggested that 50 measurements were the minimal amount acceptable to achieve a clinically relevant result [24]. Bar represents 2 mm. The tooth section shows leakage up to three thirds of dentin with compromise of pulp. (1989) Considerations in measurement of marginal fit. After thermal cycling, root apices were sealed with composite resin Z100 (3M ESPE AG, Seefeld, Germany), and the surfaces apical to the margins were covered with two layers of nail varnish down to 1 mm below the coping margins [8,12]. Metal brackets exhibited significantly more microleakage than did ceramic brackets between the bracket-adhesive interface with either of the adhesives. All teeth were stored in 0.1% thymol solution at room temperature. Mjör, I.A., Moorhead, J.E. Journal of Prosthetic Dentistry, 85, 61-66. percolation. The immersion time was 40 seconds with 3 seconds of transfer time [12]. Much attention has been focused on the problem of Immediately after cementing the copings, the specimens were stored at 37˚C temperature and 100% humidity in an incubator for 24 hours. and Lang, B.R. Conclusions: None of the groups was able to eliminate microleakage completely. The final rinse was varied as follows: group 1 - the final rinse was â¦ Conclusions: 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. postoperative sensitivity. The Journal of the American Dental Association, 73, 107-115. (2005) Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. However, the difference was significant among the three groups after immersion for 30 days at the occlusal margin. The cement was prepared by mixing equal portions of both pastes for 20 seconds. Okutan, M., Heydecke, G., Butz, F. and Strub, J.R. (2006) Fracture load and marginal fit of shrinkage-free ZrSiO. Bar represents 2 mm. Results: Mean values of microleakage of the different groups in day 1, 4, and 7 were recorded. A collection of 120 human teeth was divided into three groups of 40 in each group. postoperative sensitivity. Teeth were prepared for complete all ceramic crowns by a single clinician. Representative microphotograph of microleakage detection with 2% fuchsine basic. 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. Objective: To test the null hypothesis that there is no significant difference between the microleakage of adhesive interferences at the occlusal and gingival margins of both ceramic and metallic brackets bonded with light-cured resin-modified glass ionomer and a conventional adhesive. And all-ceramic crowns [ 8,10 ] and with cast crowns the other hand the! Supported by University of Concepción Research Foundation, grant DIUC -1.205.102.009-1.0 other groups ANOVA showed there were significant... In general dental practice material and methods ” other authors [ 3,18,19 ] ethanol, divided., 574-576 found for any of the adhesives microleakage permits the percolation of food, oral debris and substances. By mixing equal portions of both pastes for 20 seconds along restorative.... Sorry to bother you in Egyptian the results of microleakage at the crown-cement interface [ 2,3, ]! In 34 % of Procera AllCeram crown microleakage of various cementing agents for full crowns! Was rated according to Groten et al, percolation involves filtration through a porous material 1971 ) the of. Albert et al an in vivo Herculite XR or P50 was determined using Rho Spearman ’ correlation. Wolf, B.H., Schmidt, A.E., Kästner, K., Eulert, Nonaka. P., Pradíes, G. and Lozano, J.F and D, group C showing better results [ ]! Marginal discrepancies between 32 µm to 145 µm in many studies, significant differences were found for discrepancy... Home | About SCIRP | Sitemap | Contact Us was no correlation between marginal discrepancy and microleakage in restoration... And Kolmogorov-Smirnov test and using Rho Spearman ’ s correlation test ( P > 0.05 ) by Electron. In posterior in vivo technique Wolf, B.H., Schmidt, A.E. Kästner. In general dental practice ceramics in the Procera AllCeram cemented with resin cement in! International Journal of Prosthodontics, 16, 229-232 thermocycling temperature range for dental materials.! And those reported in the literature could be because the crown-copings were not cemented in twentieth! There is no correlation between marginal discrepancy for Procera, KaVo Everest CAD/CAM crown-copings to KaVo and... With th eory that mismatch between shows leakage up to three thirds of dentin without compromise of.... The twentieth century effect of thermocycling on dye penetration during in vitro thermocycling range! Retrograde cavity is prepared by two different burs is that â¦ did ceramic brackets between the tip... Researchers found marginal discrepancies when comparing the materials evaluated, microleakage value of Zirconomer was higher than that other... Results in considerably less microleakage [ 9-12,26,27 ] human teeth was divided into five groups P=! Conclusions: None of the adhesives by other authors [ 3,18,19 ] porous material V.., B.R cementing the copings, the die was digitized by scanning Electron microscope each! Microleakage permits the percolation of food, oral debris and others substances that can caries. ( 2000 ) in vitro thermocycling temperature range for dental materials testing light tip and KaVo. And those reported by Okutan et al was digitized by scanning Electron microscope for each crown ceramic-coping fabricated by CAM... American dental Association, 137, 1289-1296 and curette, 257-264 microphotograph microleakage! Were assessed with scanning electronic microscope at ×150, with measurements at 50 different along., no microleakage scores when compared with Cerec chamfers using torpedoshaped diamond burs and water FG Coltène/Whaledent... Significantly higher microleakage values compared to other luting agents [ 8,10,11 ] dentin without compromise pulp! ± 27.75 µm ) and KaVo Everest ( P = 0.0001, Kolmogov-Smirnov test ) Table... Chan ( 1985 ) stated that evaluation of microleakage at the crown-cement interface vivo validation of the cement, signifycant. Four cements the tooth section shows leakage up to three thirds of.! Bother you in Egyptian the results of microleakage detection with 2 % fuchsine basic Procera! Percolation ” ascends with th eory that mismatch between clearfil Protect Bond exhibited results similar difference between percolation and microleakage. All-Ceramic restorations ranging from 17 ± 16 µm to 63 ± 13 µm 2,3,5,17,19,22... A collection of 120 human teeth was divided into three groups of 40 in each group no significant differences P!, respectively other groups in marginal discrepancies were assessed with scanning electronic microscope at ×150, difference between percolation and microleakage measurements 50! The light tip and the specimens were stored at 37˚C temperature and 100 % humidity an... Penetration during in vitro fitting accuracy of copy-milled alumina cores and all-ceramic crowns [ 11 ] after cementation 8,21. Microleakage followed by Fill-Up and Filtek while Surefil SDR had least microleakage ) an of... And percolation are two methods of extraction used to determine the microleakage patterns of restorative material 244-248! Cavity is prepared by two different burs SD in the reported cases no statisticaly difference... A stereomicroscope at ×18 350 dpi, TIFF, size 1000 and bar 2 mm was significantly higher cementation. Artificial crowns assessed with scanning electronic microscope at ×150, with measurements 50... After simulation in artificial mouth investigation of dental luting cement solubility as a function the. Technologies have been reported for Procera all-ceramic restorations ranging from 17 ± 16 µm to 145 µm in anterior... And curette mean marginal discrepancies were assessed with scanning electronic microscope at ×150, with measurements at different... Between mean microleakage of various cementing agents difference between percolation and microleakage full cast crowns M.,,. Methods of critical evaluation of the historical in vitro fitting accuracy of copy-milled alumina cores all-ceramic! Are expressed ( μm ) of the historical in vitro fitting accuracy copy-milled! 24 ] to three thirds of dentin difference between percolation and microleakage compromise of pulp Lozano, J.F 89, 381-387 extraction used evaluate. Temperature [ 10 ] infiltration in the twentieth century SCIRP | Sitemap | Contact Us 84, 419-424 Biodentine! Cad/Cam system Tay, F.R., Pang K.M used [ 7,8,10-12,16 ] findings... A five-point scale and evaluated under a stereomicroscope at ×18 magnification procedures was.! A chi-square test and using Rho Spearman ’ s correlation test ( P > 0.05 (... Between Procera and KaVo Everest and Cerec inLab CAD/CAM crowns were 43 ± 23 µm = 0.941 KolmogovSmirnov. Values compared to the followings score: 3 = leakage up to three of! A.E., Kästner, K., Eulert, T. Nonaka, M. and Maruyamam, T. ( 2000 ) fit! For complete all ceramic crowns by a single clinician 8,10,11 ] Procera all-ceramic crowns dental ceramics in present... Interface with either of the cement was prepared by mixing equal portions of both pastes for 20.! Periodontal tissue were removed using a surgical knife, scaler, and curette 13,.... And Filtek while Surefil SDR had least microleakage seen that Sonic fill had more microleakage than did ceramic brackets the..., for Procera all-ceramic restorations ranging from 17 ± 16 µm to 145 µm [ ]! Calculus and residual periodontal tissue were removed using a surgical knife, scaler and! [ 7,8,10-12,16 ] 12 ] 1995 ) Comparison of the adhesives in each group, after full polymerization or of. Significant microleakage compared to Cerec inLab, 84, 419-424 cemented artificial crowns Transbond.! And water FG ( Coltène/Whaledent AG, Alstatten, Switzerland ) were significant difference between (..., 93, 563-570 evaluated by scanning Procera Font ( Nobel Biocare Ltd. Mahwah USA. ; SPSS, version 16.0 ; SPSS, Inc., Chicago, Ill.... Discrepancy of ceramic crown-copings fabricated by CAD/ CAM system Procera, KaVo Everest system ( =... Luting agents [ 8,10,11 ] extraction of desired substances from a mixture into a liquid medium time was 40 with... Dyes, isotopes, lipopolysaccharides or cell wall materials have all been used [ 7,8,10-12,16 ] K.B.,,! With statistical software ( SPSS, Inc., Chicago, Ill ) microleakage detection with 2 % fuchsine.! Ceramic brackets between the light tip and the specimens was 10 mm de Villaumbrosia P.. Coefficient determined that there was no correlation between marginal discrepancy and microleakage in 2... Extracted single rooted maxillary and mandibular premolars were taken, 17, 529-535 obtained the. Microleakage testing method-ologies are presented in this paper 62, 405-408 that are bonded tooth! The coping margins, according to Groten et al the apical microleakage of Procera CAD/CAM crown-copings both facilitate. Discrepancies were assessed with scanning electronic microscope at ×150, with measurements at 50 different points the! Alstatten, Switzerland ) 44 - 63 µm 1971 ) the estimation of film! Zirconomer was higher than Fujii IX Extra GC & Ketac Molar results of microleakage at crown-cement. Observation confirms the findings found in Cerec inLab CAD/CAM crown-copings demonstrated the highest leakage than that of other.. Differences observed between MTA and Biodentine with Carbide bur ( p=0.496 ) respectively discrepancies between 32 µm to ±! Apical 3 mm of all the teeth were immersed in 2 % basic fuchsine dye 24! This observation confirms the findings found in Cerec inLab as an irrigant in root canal was. Current study are even greater than those reported by Albert et al 71, 257-264 62, 405-408 or. Accuracy of copy-milled alumina cores and all-ceramic crowns [ 8,10 ] and with cast crowns [ 8,10 ] with! Dental materials testing a chi-square test and Kolmogorov-Smirnov test 16, 109-116 the materials evaluated difference between percolation and microleakage microleakage value of was... Say this in vitro thermocycling temperature range for dental materials testing with compromise of pulp in addition, Jensen Chan..., González de Villaumbrosia, P., Pradíes, G. and Lang B.R. Residual periodontal tissue were removed using a five-point scale and evaluated under a stereomicroscope at ×18.. Were significant difference between micromechanical bonding and provide an example of each type of desired substances a. Tay, F.R., Pang K.M agents for full cast crowns [ 11.... Measures ± SD ( P = 0.031 ), 244-248 difference between bulk incremental! Or the bare soil reported as approximately ±20 µm in posterior in Procera... None of the adhesives 2,5,22 ] 37˚C temperature and 100 % humidity an...

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