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  • 1
    Online Resource
    Online Resource
    Liebe Kolleginnen und Kollegen
    Springer Science and Business Media LLC ; 2015
    In:  Oralprophylaxe & Kinderzahnheilkunde Vol. 37, No. 1 ( 2015-03), p. 1-1
    Details
    In: Oralprophylaxe & Kinderzahnheilkunde, Springer Science and Business Media LLC, Vol. 37, No. 1 ( 2015-03), p. 1-1
    Type of Medium: Online Resource
    ISSN: 1614-2217 , 2190-8036
    URL: Article
    DOI: 10.3238/BF03651671
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 2709548-4
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  • 2
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    Long-term costs of post-restorations: 7-year practice-based results from Germany
    Springer Science and Business Media LLC ; 2021
    In:  Clinical Oral Investigations Vol. 25, No. 4 ( 2021-04), p. 2175-2181
    Details
    In: Clinical Oral Investigations, Springer Science and Business Media LLC, Vol. 25, No. 4 ( 2021-04), p. 2175-2181
    Abstract: We evaluated the initial and follow-up treatment costs of different post-restorations in a practice-based German healthcare setting. Methods A total of 139 incisors, canines, or premolars received post-restorations placed by eight general dental practitioners in Germany, and were followed over a mean ± SD 7.1 ± 4.5 years. Preformed metal (MP, n = 68), glass-fiber (GF, n = 28), or cast post-and-core buildups (MC, n = 23) had been used to retain crowns or bridge anchors. Preformed metal and glass-fiber had also been used to retain directly built up post-retained composite restorations (PC, n = 20). Material and treatment costs for the initial post-restorations as well as restorative, endodontic, or surgical re-treatments were estimated from a public-payer-perspective in Germany. Associations between total and annualized total costs and covariates were assessed using generalized linear modeling. The study was registered in the German Clinical Trials Register (DRKS-ID: DRKS00012938). Results MC showed highest initial treatment costs (557.23 Euro), but the least re-treatments (6/23, 26%), while PC showed lowest initial costs (203.52 Euro) but the most re-treatments (11/20, 55%). Costs for MP/GF post-crowns were initially similarly costly (496.47/496.87 Euro), and both also showed similar re-treatments (35%/36%). The overall annual failure rate was 5.2% (MC: 3.5%, MP: 4.6%, GF: 5.3%, PC: 10.3%). Including costs for the resulting re-treatments, mean total costs were 591.66 Euro (MC), 548.31 Euro (MP), 526.37 Euro (GF), and 361.81 Euro (PC). Annualized total costs were 171.36 Euro (MC), 141.75 Euro (MP), 146.12 Euro (GF), and 135.65 Euro (PC). Total and annualized total costs were highest for MC, with PC being the significantly less costly option ( p 〈 0.001). Conclusions Within German healthcare, both initial and follow-up costs for post-restorations were considerable. Saving costs initially may, at least partially, be offset by more complications long-term. Clinical relevance Dentists need to be aware that the placement of posts is not only initially costly but also comes with significant long-term costs for treating occurring complications. This should be communicated with patients and considered during treatment planning.
    Type of Medium: Online Resource
    ISSN: 1432-6981 , 1436-3771
    URL: Article
    DOI: 10.1007/s00784-020-03529-5
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2021
    detail.hit.zdb_id: 1472578-2
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  • 3
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    Online Resource
    Effects of the association of high fluoride- and calcium-containing caries-preventive agents with regular or high fluoride toothpaste on enamel: an in vitro study
    Springer Science and Business Media LLC ; 2022
    In:  Clinical Oral Investigations Vol. 26, No. 3 ( 2022-03), p. 3167-3178
    Details
    In: Clinical Oral Investigations, Springer Science and Business Media LLC, Vol. 26, No. 3 ( 2022-03), p. 3167-3178
    Type of Medium: Online Resource
    ISSN: 1432-6981 , 1436-3771
    URL: Article
    DOI: 10.1007/s00784-021-04299-4
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 1472578-2
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  • 4
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    Randomized Clinical Trial Comparing the Effects of Post Placement on Failure Rate of Postendodontic Restorations: Preliminary Results of a Mean Period of 32 Months
    Elsevier BV ; 2009
    In:  Journal of Endodontics Vol. 35, No. 11 ( 2009-11), p. 1477-1482
    Details
    In: Journal of Endodontics, Elsevier BV, Vol. 35, No. 11 ( 2009-11), p. 1477-1482
    Type of Medium: Online Resource
    ISSN: 0099-2399
    URL: Article
    DOI: 10.1016/j.joen.2009.07.026
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2009
    detail.hit.zdb_id: 2083582-6
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  • 5
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    Online Resource
    Hyperparameter Tuning and Automatic Image Augmentation for Deep Learning-Based Angle Classification on Intraoral Photographs—A Retrospective Study
    MDPI AG ; 2022
    In:  Diagnostics Vol. 12, No. 7 ( 2022-06-23), p. 1526-
    Details
    In: Diagnostics, MDPI AG, Vol. 12, No. 7 ( 2022-06-23), p. 1526-
    Abstract: We aimed to assess the effects of hyperparameter tuning and automatic image augmentation for deep learning-based classification of orthodontic photographs along the Angle classes. Our dataset consisted of 605 images of Angle class I, 1038 images of class II, and 408 images of class III. We trained ResNet architectures for classification of different combinations of learning rate and batch size. For the best combination, we compared the performance of models trained with and without automatic augmentation using 10-fold cross-validation. We used GradCAM to increase explainability, which can provide heat maps containing the salient areas relevant for the classification. The best combination of hyperparameters yielded a model with an accuracy of 0.63–0.64, F1-score 0.61–0.62, sensitivity 0.59–0.65, and specificity 0.80–0.81. For all metrics, it was apparent that there was an ideal corridor of batch size and learning rate combinations; smaller learning rates were associated with higher classification performance. Overall, the performance was highest for learning rates of around 1–3 × 10−6 and a batch size of eight, respectively. Additional automatic augmentation improved all metrics by 5–10% for all metrics. Misclassifications were most common between Angle classes I and II. GradCAM showed that the models employed features relevant for human classification, too. The choice of hyperparameters drastically affected the performance of deep learning models in orthodontics, and automatic image augmentation resulted in further improvements. Our models managed to classify the dental sagittal occlusion along Angle classes based on digital intraoral photos.
    Type of Medium: Online Resource
    ISSN: 2075-4418
    URL: Article
    DOI: 10.3390/diagnostics12071526
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2662336-5
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  • 6
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    Online Resource
    Caries Management – Science and Clinical Practice
    ROPOSTURO Romanian Association of Oral Rehabilitation and Posturotherapy ; 2015
    In:  STOMATOLOGY EDU JOURNAL Vol. 2, No. 2 ( 2015), p. 170-
    Details
    In: STOMATOLOGY EDU JOURNAL, ROPOSTURO Romanian Association of Oral Rehabilitation and Posturotherapy, Vol. 2, No. 2 ( 2015), p. 170-
    Type of Medium: Online Resource
    ISSN: 2360-2406 , 2502-0285
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.25241/stomaeduj.2015.2(2)
    DOI: 10.25241/eduj
    DOI: 10.25241/stomaeduj.2015.2(2).bookreview.3
    Language: Unknown
    Publisher: ROPOSTURO Romanian Association of Oral Rehabilitation and Posturotherapy
    Publication Date: 2015
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  • 7
    Online Resource
    Online Resource
    The potential for resin infiltration technique in dental practice
    Mark Allen Group ; 2012
    In:  Dental Update Vol. 39, No. 9 ( 2012-11-02), p. 623-628
    Details
    In: Dental Update, Mark Allen Group, Vol. 39, No. 9 ( 2012-11-02), p. 623-628
    Abstract: Caries infiltration is a micro-invasive treatment to arrest non-cavitated caries lesions. The method is based on the penetration of low-viscosity light-curing resins, so called infiltrants, into the pores within the enamel lesion. That way, diffusion pathways for cariogenic acids are occluded, resulting in a reduction or even arrest of lesion progression. A positive side-effect of caries infiltration is that lesions change their optical properties and appear similar to sound enamel. Therefore, caries infiltration can also be used to camouflage aesthetically disfiguring white spot lesions on buccal surfaces. Clinical Relevance: Resin infiltration is a micro-invasive treatment to arrest and to camouflage non-cavitated proximal caries lesions that virtually bridges non-invasive and restorative treatment options.
    Type of Medium: Online Resource
    ISSN: 0305-5000 , 2515-589X
    URL: Article
    DOI: 10.12968/denu.2012.39.9.623
    Language: English
    Publisher: Mark Allen Group
    Publication Date: 2012
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  • 8
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    Online Resource
    Dental caries, fluorosis, and oral health behavior of children from Herat, Afghanistan
    Wiley ; 2015
    In:  Community Dentistry and Oral Epidemiology Vol. 43, No. 6 ( 2015-12), p. 521-531
    Details
    In: Community Dentistry and Oral Epidemiology, Wiley, Vol. 43, No. 6 ( 2015-12), p. 521-531
    Abstract: Decades of conflict, poverty, and dysfunctional public services have affected people's health in Afghanistan. To estimate treatment needs and guide health initiatives, epidemiologic data are required. Such data are currently unavailable for dental health. The present study assessed caries experience, fluorosis, and oral health behavior in children from Afghanistan. Methods We performed a two‐stage, school‐based cross‐sectional study in Herat province in Afghanistan. A total of 1059 children, 369 children aged 6–7, 300 aged 12, and 390 aged 15 years, were sampled. Caries was assessed according to ICDAS , and oral hygiene, dietary habits, and parental economic and educational status evaluated. Prevalence of fluorosis was assessed, and fluoride concentrations in drinking water and in used toothpastes were measured. Results Mean ( SD ) number of decayed, missing, or filled teeth was dmft = 4.88 (3.11), DMFT  = 2.57 (2.16), and DMFT  = 4.04 (3.03) in 6‐/7‐, 12‐, and 15‐year‐olds, respectively. The majority of lesions in 6‐year‐olds were cavitated, while 12‐ and 15‐year‐olds showed more non‐ or microcavitated lesions. Most lesions, especially in young children, were untreated. Mean (range) water fluoride concentration was 0.37 (0.19–0.67) ppm. Fluoride concentrations in evaluated toothpastes did not meet internationally recommended levels. The majority of children showed no or minimal fluorosis. Having fluorosis, infrequently consuming sweets, or having a father with high education was associated with low caries experience (dmfs/ DMFS   〈  10), with OR (95% CI ) being 0.64 (0.47/0.90), 0.65 (0.44–0.95), and 0.64 (0.47/0.90), respectively. Conclusions Examined Afghan children had high unmet dental treatment needs and caries experience. Sufficient access to restorative treatment and prevention measures is urgently required.
    Type of Medium: Online Resource
    ISSN: 0301-5661 , 1600-0528
    URL: Issue
    URL: Article
    DOI: 10.1111/cdoe.2015.43.issue-6
    DOI: 10.1111/cdoe.12177
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2027101-3
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  • 9
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    Online Resource
    Correlation of quantitative light-induced fluorescence and qualitative visual rating in infiltrated post-orthodontic white spot lesions
    Oxford University Press (OUP) ; 2023
    In:  European Journal of Orthodontics Vol. 45, No. 2 ( 2023-03-31), p. 133-141
    Details
    In: European Journal of Orthodontics, Oxford University Press (OUP), Vol. 45, No. 2 ( 2023-03-31), p. 133-141
    Abstract: The aim of this prospective, clinical single-centre study was to evaluate the masking efficacy of post-orthodontic resin infiltration after 12-month follow-up and correlate quantitative and qualitative outcome measures. Methods Patients with completed fixed orthodontic treatment and the presence of one or more vestibular active non-cavitated white spot lesion/s (WSL) [ICDAS 1 or 2 (International Caries Detection and Assessment System)] were provided with resin infiltration 3–12 months after bracket removal. All patients (n = 31) participating before (t0) intervention were invited again and examined after 12 months (t2). Enamel demineralization was scored using quantitative light-induced fluorescence [QLF (DeltaF[flourescence] , DeltaQ[lesion volume], White Spot Area)] and qualitative visual rating [11-point Likert-scale from 0 (no lesions visible on any tooth) to 10 (all teeth affected on the entire vestibular surface)]. Results In 17 patients (7 female and 10 male) 112 WSL (ICDAS 1: n = 1; ICDAS 2: n = 111) in 112 teeth were (re)examined. Before treatment (t0) a significant, weak (DeltaF), and moderate (DeltaQ, White Spot Area) correlation was observed between the quantitative and the qualitative rating (P & lt; 0.002) [median DeltaF: −7.31 (−10.4/−6.58)%; DeltaQ:−2.25 (−10.8/−0.41)% mm2; White Spot Area: 0.34 (0.05/1.16) mm2; visual rating:3.7 ± 1.2]. Resin infiltration led to significantly increased fluorescence and decreased visual scores (P & lt; 0.001) 7 days (t1) and 12 months (t2) after treatment. No significant changes based on DeltaF [−6.55 (−7.29/−6.08)%] and on visual ratings [1.0 ± 1.0] were observed between t1 and t2 (P = 1.000). After 7 days (t1) the correlation between the quantitative and the qualitative ratings remained significant, weak to moderate (P & lt; 0.002). After 12 months (t2) the correlation was (non-)significant and weak for DeltaF, DeltaQ, and White Spot Area (P ≤ 0.097). Limitations Since the overall masking efficacy of resin infiltration has been shown previously, an untreated control group was omitted. Conclusions When assessing the masking efficacy of infiltrated post-orthodontic WSL only a weak to moderate correlation was found between QLF values and visual ratings. Furthermore, over time this correlation decreased. Thus, it remains unclear if QLF is a viable method to assess and quantify infiltrated post-orthodontic WSL over time. Trial registration German Clinical Trials Register (DRKS-ID:DRKS00005067).
    Type of Medium: Online Resource
    ISSN: 0141-5387 , 1460-2210
    URL: Article
    DOI: 10.1093/ejo/cjac051
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2023
    detail.hit.zdb_id: 1466699-6
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  • 10
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    Randomized in situ evaluation of surface polishing protocols on the caries-protective effect of resin Infiltrant
    Springer Science and Business Media LLC ; 2022
    In:  Scientific Reports Vol. 12, No. 1 ( 2022-11-30)
    Details
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 12, No. 1 ( 2022-11-30)
    Abstract: The aim of this placebo-controlled randomized in situ study was to evaluate the effect of different surface polishing protocols on enamel roughness, bacterial adhesion and caries-protective effect of a resin infiltrant. Seventy-five bovine enamel samples having artificial caries lesions were treated with a resinous infiltrant and afterwards randomly dividided into five polishing protocols: aluminum oxide flexible disks (Al 2 O 3 -Disks), silicon carbide tips (SIC-Tips), silicon carbide brush (SIC-Brush), silicon carbide polyester strips (SIC-Strips) or no polishing [negative control (NC)]. Average surface roughness (Ra) was assessed by profilometry. Samples were mounted in palatal appliances under a mesh for biofilm accumulation. Fifteen volunteers wore the intraoral appliances (14-days) and cariogenic challenge was triggered by sucrose solutions . Biofilm formed was collected for microbiological analysis of caries-related bacteria ( Streptococcus mutans, Lactobacillus acidophilus ) and demineralization was assessed by cross-sectional microhardness. Mean Knoop hardness numbers (Kg/mm 2 ) were plotted over lesion depth (µm) and area under the lesion curve was subtracted from sound enamel to determine demineralization (ΔS, Kg/mm 2 xµm). Data were analyzed by ANOVA and post-hoc comparisons (α = 0.05). NC resulted in significantly higher Ra means than Al 2 O 3 -Disks and SIC-Strips. Bacterial counts were not significantly different between the groups (p  〉  0.05). Regards ΔS means, however none of the groups were significantly different to NC (6983.3 kg/mm 2 xµm /CI 4246.1–9720.5, p  〉  0.05). Conclusions: Polishing protocols (Al 2 O 3 -Disks, SIC-Strips) significantly decreseased roughness of infiltrated-enamel, however none of the polishing protocols could signicantly decrease bacterial counts nor resulted in significant less demineralization.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    URL: Article
    DOI: 10.1038/s41598-022-25091-8
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2615211-3
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