Rödiger, Matthias

[["dc.bibliographiccitation.artnumber","2143906"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","BioMed Research International"],["dc.bibliographiccitation.lastpage","8"],["dc.bibliographiccitation.volume","2018"],["dc.contributor.author","Rödiger, Matthias"],["dc.contributor.author","Schneider, Lea"],["dc.contributor.author","Rinke, Sven"],["dc.date.accessioned","2019-07-09T11:45:18Z"],["dc.date.available","2019-07-09T11:45:18Z"],["dc.date.issued","2018"],["dc.description.abstract","This study evaluated the marginal accuracy of CAD/CAM-fabricated crown copings from four different materials within the same processing route. Twenty stone replicas of a metallic master die (prepared upper premolar) were scanned and divided into two groups. Group 1 (𝑛� = 10) was used for a pilot test to determine the design parameters for best marginal accuracy. Group 2 (𝑛� = 10) was used to fabricate 10 specimens from the following materials with one identical CAD/CAM system (GAMMA 202, Wissner GmbH, Goettingen, Germany): A = commercially pure (cp) titanium, B = cobalt-chromium alloy, C = yttria-stabilized zirconia (YSZ), and D = leucite-reinforced glass-ceramics. Copings from group 2 were evaluated for the mean marginal gap size (MeanMG) and average maximum marginal gap size (AMaxMG) with a light microscope in the “as-machined” state. The effect of the material on the marginal accuracy was analyzed by multiple pairwise comparisons (Mann–Whitney, 𝑈�-test, 𝛼� = 0.05, adjusted by Bonferroni-Holmes method). MeanMG values were as follows: A: 46.92 ± 23.12 𝜇�m, B: 48.37 ± 29.72 𝜇�m, C: 68.25 ± 28.54 𝜇�m, and D: 58.73 ± 21.15 𝜇�m. The differences in the MeanMG values proved to be significant for groups A/C (𝑝� = 0.0024), A/D (𝑝� = 0.008), and B/C (𝑝� = 0.0332). AMaxMG values (A: 91.54 ± 23.39 𝜇�m, B: 96.86 ± 24.19 𝜇�m, C: 120.66 ± 32.75 𝜇�m, and D: 100.22 ± 10.83 𝜇�m) revealed no ignificant differences. The material had a significant impact on the marginal accuracy of CAD/CAM-fabricated copings."],["dc.identifier.doi","10.1155/2018/2143906"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15103"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59206"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2314-6141"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","610"],["dc.title","Influence of Material Selection on the Marginal Accuracy of CAD/CAM-Fabricated Metal- and All-Ceramic Single Crown Copings"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","31"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Oral Biosciences"],["dc.bibliographiccitation.lastpage","45"],["dc.bibliographiccitation.volume","51"],["dc.contributor.author","Roediger, Matthias"],["dc.contributor.author","Miró, Xavier"],["dc.contributor.author","Geffers, Robert"],["dc.contributor.author","Irmer, Malte"],["dc.contributor.author","Huels, Alfons"],["dc.contributor.author","Miosge, Nicolai"],["dc.contributor.author","Gersdorff, Nikolaus"],["dc.date.accessioned","2019-07-09T11:52:27Z"],["dc.date.available","2019-07-09T11:52:27Z"],["dc.date.issued","2009"],["dc.description.abstract","The purpose of this study was to compare gene expression profiles of peri-implantitis and periodontitis to elucidate potential differences at the molecular level. With the help of microarray analysis, genome-wide gene expression of inflamed peri-implant granulation tissue, inflamed and healthy periodontal tissues (n=48 patients) were compared and the data were validated by real-time reverse transcription polymerase chain reaction. After highlighting different gene classes, we focused on the extracellular matrix-receptor interaction pathway and gene expression of extracellular matrix molecules, their receptors and matrix degrading enzymes. Only genes of non-fibril-forming collagens (types IV, VI, VII, and Q) were increased in peri-implantitis compared to periodontitis, whereas the expressions of two fibril-forming collagens (types III and K) were decreased in peri-implantitis, which suggested that peri-implant tissue re-models faster than periodontal tissue in vivo. Furthermore, cathepsin D and cathepsin S seem to participate in the destruction of peri-implant connective tissue. Despite their clinical similarities, the present investigation demonstrated that peri-implantitis and periodontitis are two different disease entities at least at the messanger ribonucleic acid level. The data provide insight for future studies aimed at dissecting the pathogenesis of peri-implant inflammation."],["dc.identifier.doi","10.2330/joralbiosci.51.31"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/4310"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/60194"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","610"],["dc.title","Profiling of Differentially Expressed Genes in Peri-implantitis and Periodontitis in vivo by Microarray Analysis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","141"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","The International journal of prosthodontics"],["dc.bibliographiccitation.lastpage","8"],["dc.bibliographiccitation.volume","23"],["dc.contributor.author","Roediger, Matthias"],["dc.contributor.author","Gersdorff, Nikolaus"],["dc.contributor.author","Huels, Alfons"],["dc.contributor.author","Rinke, Sven"],["dc.date.accessioned","2019-07-10T08:13:30Z"],["dc.date.available","2019-07-10T08:13:30Z"],["dc.date.issued","2010"],["dc.description.abstract","PURPOSE: In this prospective clinical study, the performance of three- and four-unit fixed partial dentures (FPDs) with frameworks fabricated of yttria partially stabilized zirconia was determined after a mean observation period of 50 months. The study focused on the survival of the restoration (in situ criterion) and the success of the ceramic veneers (no defect). MATERIALS AND METHODS: Seventy-five patients with a maximum of two missing teeth and an antagonistic dentition were treated at the Department of Prosthodontics, University of Goettigen, with 99 posterior FPDs. Fifty-one specimens (experimental group) were veneered with an experimental ceramic suitable for titanium and zirconia frameworks (thermal expansion coefficient [TEC]: 8.5 microm/m K); 48 restorations (Ceram-S group) were veneered with a commercially available low-fusing ceramic optimized for zirconia frameworks (TEC: 9.5 microm/m K). All restorations were luted with zinc-phosphate cement. Statistical analysis was performed according to the Kaplan-Meier method; time-dependent success rates of the different types of ceramic veneers were analyzed using the log-rank test. RESULTS: Seven restorations were lost: 4 due to technical complications and 3 due to biologic complications. The overall survival rate after 48 months was 94% (Kaplan-Meier analysis). Twenty-three events required clinical intervention for restoration maintenance: 13 ceramic veneer chippings (polishing), 6 losses of retention (recementation), 3 caries lesions (filling therapy), and 1 loss of vitality (endodontic treatment). Between the two groups of veneering materials, no significant difference in the probability for success was determined (log-rank test, P=.81). CONCLUSIONS: Within a mean observation period of 4 years, sufficient survival rates for zirconia-based posterior FPDs could be verified. The main complications included fracture of the ceramic veneering material and decementation, which occurred mainly in the mandible."],["dc.identifier.pmid","20305852"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6042"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61265"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","0893-2174"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.rights","Goescholar"],["dc.subject.ddc","610"],["dc.subject.mesh","Adult"],["dc.subject.mesh","Aged"],["dc.subject.mesh","Dental Restoration Failure"],["dc.subject.mesh","Denture Design"],["dc.subject.mesh","Denture, Partial, Fixed"],["dc.subject.mesh","Female"],["dc.subject.mesh","Follow-Up Studies"],["dc.subject.mesh","Humans"],["dc.subject.mesh","Male"],["dc.subject.mesh","Middle Aged"],["dc.subject.mesh","Prospective Studies"],["dc.subject.mesh","Survival Analysis"],["dc.subject.mesh","Tooth, Artificial"],["dc.subject.mesh","Treatment Outcome"],["dc.subject.mesh","Zirconium"],["dc.title","Prospective evaluation of zirconia posterior fixed partial dentures: four-year clinical results."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Dental Research Journal"],["dc.bibliographiccitation.lastpage","11"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Gersdorff, Nikolaus"],["dc.contributor.author","Miró, Xavier"],["dc.contributor.author","Roediger, Matthias"],["dc.contributor.author","Geffers, Robert"],["dc.contributor.author","Huels, Alfons"],["dc.contributor.author","Miosge, Nicolai"],["dc.contributor.author","Toepfer, Tanja"],["dc.date.accessioned","2019-07-10T08:12:53Z"],["dc.date.available","2019-07-10T08:12:53Z"],["dc.date.issued","2008"],["dc.description.abstract","Background: In the periodontium, the functions of the cell populations regarding the host-mediated tissue destruction in health and disease are not well understood. The purpose of this study was to measure the expression of genes differentially expressed in chronically inflamed periodontal ligament (PDL) cells compared to healthy PDL cells. Methods: We compared the genome-wide gene expressions of chronically inflamed and healthy PDL cells by microarray analysis, and validated the data by real-time RT-PCR to identify the genes that might play distinct roles in chronic periodontal disease in vivo. Results: The expression rates of 14,239 genes were investigated and 3,165 of them were found differentially expressed by at least two-fold; the expression rates of 1,515 genes were significantly upregulated and the expression rates of 1,650 genes were significantly downregulated in inflamed PDL cells. Conclusion: We focused on mainly structural components, for example, laminins and integrins, as well as degrading enzymes, for example, MMPs and cathepsins. The molecular composition of the laminin network varies in chronically inflamed compared to healthy PDL cells in vivo. Furthermore, integrin alpha6beta4, together with laminin-332, might be involved in chronic periodontal inflammation. Diverse keratins were upregulated, indicating that the epithelial cell rests of Malassez might also be involved in chronic periodontitis. The microarray analysis has identified a profile of genes potentially involved in chronic periodontal inflammation in vivo."],["dc.identifier.fs","432816"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/4309"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61070"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","610"],["dc.title","Gene Expression Analysis of Chronically Inflamed and Healthy Human Periodontal Ligament Cells in vivo"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]