Wiegand, Annette E.

[["dc.bibliographiccitation.firstpage","269"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Caries Research"],["dc.bibliographiccitation.lastpage","274"],["dc.bibliographiccitation.volume","42"],["dc.contributor.author","Magalhães, A.C."],["dc.contributor.author","Kato, M.T."],["dc.contributor.author","Rios, D."],["dc.contributor.author","Wiegand, A."],["dc.contributor.author","Attin, T."],["dc.contributor.author","Buzalaf, M.A.R."],["dc.date.accessioned","2020-11-05T15:13:44Z"],["dc.date.available","2020-11-05T15:13:44Z"],["dc.date.issued","2008"],["dc.identifier.doi","10.1159/000135672"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/68547"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-352.9"],["dc.relation.eissn","1421-976X"],["dc.relation.issn","0008-6568"],["dc.relation.orgunit","Poliklinik für Präventive Zahnmedizin, Parodontologie und Kariologie"],["dc.title","The Effect of an Experimental 4% TiF₄Varnish Compared to NaF Varnishes and 4% TiF₄Solution on Dental Erosion in vitro"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","203"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Clinical Oral Investigations"],["dc.bibliographiccitation.lastpage","207"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Attin, T."],["dc.contributor.author","Becker, K."],["dc.contributor.author","Hannig, C."],["dc.contributor.author","Buchalla, Wolfgang"],["dc.contributor.author","Wiegand, Annette"],["dc.date.accessioned","2018-11-07T10:56:00Z"],["dc.date.available","2018-11-07T10:56:00Z"],["dc.date.issued","2005"],["dc.description.abstract","The study describes the suitability of a colorimetric method (malachite green procedure) for detection of minimal amounts of phosphate (7.3-29.1 mu mol/L) in different acidic solutions (hydrochloric acid, oxalic acid, maleic acid, perchloric acid, tartaric acid, citric acid, lactic acid and acetic acid) adjusted to pH 2.0. A mixture of the respective phosphate concentrations with distilled water served as control. The experiments were run with ten repeats in series. Assessment of intra- and interassay coefficient of variation and lower limit of quantification revealed that depending on the acid used, the applied method is a reliable and suitable tool to detect and quantify minimal phosphate contents in small samples of acidic solutions that have the potential to cause erosive dental lesions."],["dc.identifier.doi","10.1007/s00784-005-0313-8"],["dc.identifier.isi","000232130500012"],["dc.identifier.pmid","15912408"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49911"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","Heidelberg"],["dc.relation.issn","1432-6981"],["dc.title","Suitability of a malachite green procedure to detect minimal amounts of phosphate dissolved in acidic solutions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","390"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of Oral Rehabilitation"],["dc.bibliographiccitation.lastpage","394"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Wegehaupt, Florian Just"],["dc.contributor.author","Gries, D."],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Attin, T."],["dc.date.accessioned","2018-11-07T11:15:38Z"],["dc.date.available","2018-11-07T11:15:38Z"],["dc.date.issued","2008"],["dc.description.abstract","The study aimed to compare the dentine wear of primary and permanent human and bovine teeth because of erosion/abrasion and evaluate if bovine dentine is an appropriate substitute for human dentine in further erosion/abrasions tests. Dentine samples from deciduous molars and human third molars as well as from calves' and cattle's lower incisors were prepared and baseline surface profiles were recorded. Each day all samples were demineralized in 1% citric acid, tooth brushed with 100 brushing strokes with toothpaste slurry and stored in artificial saliva for the rest of the day. This cycle was run for 20 days. Afterwards, new surface profiles were recorded and dentine wear was calculated by a customized computer program. Dentine wear because of erosion/abrasion was not statistically, significantly different for human third molars and cattle's lower incisors (P = 0.7002). The dentine wear because of erosion/abrasion of deciduous molars and calves' lower incisors was significantly different (P < 0.0000). No statistically significant difference in the dentine wear of human third molars and cattle's lower incisors was observed, so that the use of cattle's lower incisors as substitute for adult human teeth for further investigations in erosion/abrasion studies could be accepted."],["dc.identifier.doi","10.1111/j.1365-2842.2007.01843.x"],["dc.identifier.isi","000254953500010"],["dc.identifier.pmid","18405276"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54411"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Publishing"],["dc.relation.issn","0305-182X"],["dc.title","Is bovine dentine an appropriate substitute for human dentine in erosion/abrasion tests?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","489"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","European Journal of Orthodontics"],["dc.bibliographiccitation.lastpage","493"],["dc.bibliographiccitation.volume","27"],["dc.contributor.author","Attin, Rengin"],["dc.contributor.author","Thon, C."],["dc.contributor.author","Schlagenhauf, U."],["dc.contributor.author","Werner, C."],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Hannig, C."],["dc.contributor.author","Attin, T."],["dc.date.accessioned","2018-11-07T10:55:16Z"],["dc.date.available","2018-11-07T10:55:16Z"],["dc.date.issued","2005"],["dc.description.abstract","The aim of the present study was to compare the recolonization pattern of mutans streptococci on densely colonized teeth with and without fixed orthodontic appliances after treatment with a 40 per cent chlorhexidine (CHX) varnish (EC 40 (R), Explore). Healthy subjects free of carious lesions requiring fixed orthodontic appliance treatment but with high bacterial mutans streptococci saliva counts were recruited (n = 10). For baseline registration, plaque from buccal sites was sampled and cultivated on Dentocult (R) strips. Following professional tooth cleaning, CHX varnish was applied to all teeth for 8 minutes. Subsequently, orthodontic brackets and bands were inserted in either the upper or lower arch. Eight weeks after varnish application the degree of recolonization with mutans streptococci was reassessed on the buccal sites. Statistical analysis showed that recolonization with mutans streptococci was significantly higher (P < 0.05) on teeth with orthodontic appliances. The results indicate that the use of fixed orthodontic appliances creates artificial environments suitable for the proliferation of mutans streptococci after CHX varnish suppression."],["dc.identifier.doi","10.1093/ejo/cji018"],["dc.identifier.isi","000232425400011"],["dc.identifier.pmid","15961573"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49750"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0141-5387"],["dc.title","Recolonization of mutans steptococci on teeth with orthodontic appliances after antimicrobial therapy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","112"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Caries Research"],["dc.bibliographiccitation.lastpage","116"],["dc.bibliographiccitation.volume","42"],["dc.contributor.author","Magalhães, A.C."],["dc.contributor.author","Rios, D."],["dc.contributor.author","Moino, A.L."],["dc.contributor.author","Wiegand, A."],["dc.contributor.author","Attin, T."],["dc.contributor.author","Buzalaf, M.A.R."],["dc.date.accessioned","2020-11-05T15:13:44Z"],["dc.date.available","2020-11-05T15:13:44Z"],["dc.date.issued","2008"],["dc.identifier.doi","10.1159/000117807"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/68545"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-352.9"],["dc.relation.eissn","1421-976X"],["dc.relation.issn","0008-6568"],["dc.relation.orgunit","Poliklinik für Präventive Zahnmedizin, Parodontologie und Kariologie"],["dc.title","Effect of Different Concentrations of Fluoride in Dentifrices on Dentin Erosion Subjected or Not to Abrasion in situ/ex vivo"],["dc.type","journal_article"],["dc.type.internalPublication","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","852"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Dental Materials"],["dc.bibliographiccitation.lastpage","861"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Attin, T."],["dc.contributor.author","Hannig, C."],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Attin, Rengin"],["dc.date.accessioned","2018-11-07T10:44:08Z"],["dc.date.available","2018-11-07T10:44:08Z"],["dc.date.issued","2004"],["dc.description.abstract","Objective: Internal and external bleaching procedures utilizing 3-35% hydrogen peroxide solutions or hydrogen peroxide releasing agents, such as carbamide peroxide or sodium perborate, can be used for whitening of teeth. The purpose of the review article was to summarize and discuss the available information concerning the effects of peroxide releasing bleaching agents on dental restorative materials and restorations. Sources: Information from all original scientific full papers or reviews listed in PubMed or ISI Web of Science (search term: bleaching AND (composite OR amalgam OR glass ionomer OR compomer OR resin OR alloy) were included in the review. Data: Existing literature reveals that bleaching therapies may have a negative effect on physical properties, marginal integrity, enamel and dentin bond strength, and color of restorative materials as investigated in numerous in vitro studies. However, there are no reports in literature indicating that bleaching may exert a negative impact on existing restorations requiring renewal of the restorations under clinical conditions. Conclusion: Bleaching may exert a negative influence on restorations and restorative materials. Advice is provided based on the current literature to minimize the impact of bleaching therapies on restorative materials and restorations. (C) 2004 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.dental.2004.04.002"],["dc.identifier.isi","000224374100009"],["dc.identifier.pmid","15451241"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47208"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0109-5641"],["dc.title","Effect of bleaching on restorative materials and restorations - a systematic review"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","56"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Caries Research"],["dc.bibliographiccitation.lastpage","60"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Wegehaupt, Florian Just"],["dc.contributor.author","Werner, C."],["dc.contributor.author","Attin, T."],["dc.date.accessioned","2018-11-07T11:06:10Z"],["dc.date.available","2018-11-07T11:06:10Z"],["dc.date.issued","2007"],["dc.description.abstract","The study aimed to compare the amounts of softened enamel removable by ultrasonication and by toothbrushing abrasion of briefly eroded samples. Thirty bovine enamel samples were demineralized in hydrochloric acid (pH 2.1) for 60 s and were then either brushed with 350 brushing strokes in toothpaste slurry (group A) or distilled water (group B) or were ultrasonicated for 120 s (group C). Enamel loss was measured after 10, 20, 50 and then after every 50 brushing strokes or after 5, 30, 60 and 120 s ultrasonication. Samples were indented with a Knoop diamond after erosion, and enamel loss due to abrasion or wear was calculated from the change in indentation depth after mechanical treatment. Within- and between-group comparisons were performed by ANOVA or t test. Initially, enamel loss increased with increasing brushing treatment or ultrasonication time. Enamel loss did not increase after 300 brushing strokes in group A (534 +/- 169 nm) or 250 brushing strokes in group B (423 +/- 80 nm), or after 60 s ultrasonication (231 +/- 72 nm). Enamel loss was significantly higher in groups A and B than in group C. The results confirm that ultrasonication removes only the outer, more highly demineralized part of the softened enamel layer. Results also indicate that toothbrushing abrasion removes more softened enamel from briefly eroded enamel than ultrasonication, and therefore probably removes partly demineralized enamel from the deeper part of the softened layer. In vivo, excessive toothbrushing might remove the softened enamel layer almost completely. Copyright (c) 2007 S. Karger AG, Basel."],["dc.identifier.doi","10.1159/000096106"],["dc.identifier.isi","000242847100008"],["dc.identifier.pmid","17167260"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52244"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Karger"],["dc.relation.issn","0008-6568"],["dc.title","Susceptibility of acid-softened enamel to mechanical wear - Ultrasonication versus toothbrushing abrasion"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","221"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Periodontal Research"],["dc.bibliographiccitation.lastpage","227"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Lemmrich, F."],["dc.contributor.author","Attin, T."],["dc.date.accessioned","2018-11-07T09:46:14Z"],["dc.date.available","2018-11-07T09:46:14Z"],["dc.date.issued","2006"],["dc.description.abstract","This in vitro study aimed to evaluate the susceptibility of sound and eroded dentine to brushing abrasion performed by different rotating-oscillating, sonic and ultrasonic toothbrushes. Toothbrushing abrasion (20 cycles, each 30 s) was applied to bovine dentine samples (each subgroup n = 10) exhibiting both a demineralized (each cycle: 1% citric acid, pH: 2.3, 60 s; 30 min remineralization in artificial saliva) and a sound surface area. Toothbrushing was performed in an automatic brushing machine with the rotating-oscillating, sonic and ultrasonic toothbrushes either (a) activated, supplemented by 20 strokes/min of the brushing machine, (b) inactivated, supplemented by 20 strokes/min of the brushing machine or (c) inactivated, supplemented by 80 strokes/min of the brushing machine. A manual toothbrush was applied with 20, 80 or 100 linear strokes/min. Specimens of the control group were not brushed after erosion. After each cycle, the samples were stored in artificial saliva for 4 h. After 20 cycles, loss of sound and softened dentine was determined by profilometry. Mann-Whitney-Wilcoxon test and Bonferroni corrections were applied to the data (p < 0.05). For all groups, demineralized dentin areas exhibited significantly higher abrasion values than the respective sound dentine surfaces. However, mean dentine loss of both softened and sound dentine was higher after use of the rotating-oscillating, sonic and ultrasonic brushes with the activated regime [(a) eroded dentine: 9.94-16.45 mu m; sound dentine: 3.31-5.47 mu m] than after brushing with the inactivated regimes [(b) eroded dentine: 5.10-5.62 mu m; sound dentine: 1.16-1.81 mu m; (c) eroded dentin: 7.64-8.89 mu m; sound dentine: 1.38-1.69 mu m]. The results indicate that rotating-oscillating, sonic or ultrasonic action of the power toothbrushes leads to an increased loss of demineralized and sound dentine."],["dc.identifier.doi","10.1111/j.1600-0765.2005.00850.x"],["dc.identifier.isi","000237298300011"],["dc.identifier.pmid","16677292"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34824"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Publishing"],["dc.relation.issn","0022-3484"],["dc.title","Influence of rotating-oscillating, sonic and ultrasonic action of power toothbrushes on abrasion of sound and eroded dentine"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","259"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Archives of Oral Biology"],["dc.bibliographiccitation.lastpage","265"],["dc.bibliographiccitation.volume","49"],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Wolmershauser, S."],["dc.contributor.author","Hellwig, E."],["dc.contributor.author","Attin, T."],["dc.date.accessioned","2018-11-07T10:49:44Z"],["dc.date.available","2018-11-07T10:49:44Z"],["dc.date.issued","2004"],["dc.description.abstract","Objective: Evaluation of abrasion resistance of eroded and non-eroded dentine brushed with experimental dentifrices and gets of varying buffering capacities. Design: One hundred and twenty human dentine specimens were distributed among six groups (A-F) according to the different buffering capacities of experimental toothpastes and gets. The dentifrices (pH: 4.5) and gets (pH: 4.5) differed in fluoride content, RDA-value and buffer capacity (given as mg KOH needed for neutralisation): (A) 0.125%F, RDA: 77, 6 mg KOH; (13) 0.125%F, RDA: 125, 24 mg KOH; (C) 0.125%F, RDA: 129, 12 mg KOH; (D) 0%F, RDA: 81, 1.55 mg KOH; (E) 1.25%F, RDA: 21, 8.5 mg KOH; (F) 0.125%F, RDA: 7, 3.11 mg KOH. Ten specimens were cycled through three alternating demineralisations (1% citric acid, 5 min) and remineralisations (artificial sativa, I min) including brushing abrasion in an automatic brushing machine (2 x 2000 strokes). Ten samples of each group were not eroded, but only brushed. Results: After three cycles, loss of dentine was determined by profilometry (mean +/- S.D. [mum]). Eroded samples: (A) 37.12 +/- 4.95; (13) 48.67 +/- 4.77; (C) 39.88 +/- 3.76; (D) 32.92 +/- 2.67; (E) 3.65 +/- 1.35; (F) 6.47 +/- 1.31. Uneroded samples: (A) 30.78 +/- 6.47; (13) 37.84 +/- 7.75; (C) 30.07 +/- 3.05; (D) 26.93 +/- 2.30; (E) 1.76 +/- 0.94; (F) 0.51 +/- 0.18. Analysis of variance revealed significantly higher abrasion values for the eroded compared to the non-eroded samples (P less than or equal to 0.05). Dentifrices with same pH-value, fluoride content and similar RDA-values but a higher buffering capacity exhibited significantly more abrasion than toothpastes with lower buffering capacity. Highly-concentrated fluoride get with higher buffering capacity lead to less abrasion values compared to the get with low fluoride concentration and low buffering capacity. Conclusion: Toothbrushing abrasion behaviour of eroded dentine may be influenced by the fluoride content, RDA-value and buffering capacity of the applied dentifrice or get. (C) 2004 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.archoralbio.2003.06.001"],["dc.identifier.isi","000220317400002"],["dc.identifier.pmid","15003544"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/48501"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0003-9969"],["dc.title","Influence of buffering effects of dentifrices and fluoride gels on abrasion on eroded dentine"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","412"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","American Journal of Dentistry"],["dc.bibliographiccitation.lastpage","416"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Wiegand, Annette"],["dc.contributor.author","Otto, Y. A."],["dc.contributor.author","Attin, T."],["dc.date.accessioned","2018-11-07T10:43:15Z"],["dc.date.available","2018-11-07T10:43:15Z"],["dc.date.issued","2004"],["dc.description.abstract","Purpose: To evaluate in vitro, the effect of different external bleaching agents on the susceptibility of enamel against toothbrushing abrasion. Methods: 96 bovine enamel specimens were embedded in acrylic resin, polished and covered with tape except for a 1.4 x 10 mm window. The samples were divided into eight groups (A-H), 12 specimens each (A-G) were treated with seven different home-bleaching (A: Whitestrips, B: Rapid White, C: Opalescence 10%, D: Opalescence PF 15%) and in-office-bleaching agents (E: Opalescence Extra, F: Opalescence Quick, G: Opalescence Extra Boost) according to manufacturers' instructions. Before and after each individual bleaching treatment the samples were brushed 40 times in an automatic brushing machine using a slurry containing artificial saliva and fluoridated toothpaste. The control group (Group H) was not bleached, but also brushed. After each cycle the specimens were stored in artificial saliva for 24 hours. Results: After 20 cycles loss of enamel was determined by profilometry, resulting in the following values (mean standard deviation) which were statistically analyzed: Group A: (0.169 mum +/- 0.035), Group B (11.108 mum +/- 0.655), Group C (0.207 mum +/- 0.042), Group D (0.154 mum +/- 0.028), Group E (0.081 mum +/- 0.015), Group F (0.084 mum +/- 0.018), Group G (0.087 mum +/- 0.014), Group H (0.076 mum +/- 0.012). Group B differed significantly from the other groups (r= 0.001). Samples of Groups C, D and A showed a significant difference compared to the control H (r= 0.001). Statistical analysis revealed no significant difference between enamel loss of Groups E, F, G and the Control H. It could be proven that toothbrushing abrasion of bleached enamel may be increased depending on the bleaching agent and application form used. Nevertheless, with the exception of bleaching treatment with Rapid White, toothbrushing abrasion of bleached enamel seems to be clinically less relevant."],["dc.identifier.isi","000226455900007"],["dc.identifier.pmid","15724752"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47003"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Mosher & Linder, Inc"],["dc.relation.issn","0894-8275"],["dc.title","In vitro evaluation of toothbrushing abrasion of differently bleached bovine enamel"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]