Rainer Haak

Prof. Rainer Haak

University of Leipzig, Leipzig, Saxony, Germany
orcid

Research Focus & Metrics

Academic Career Length

32Years (1995-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2013 in Patient Education and Counseling
Verified
Journal Article
Closed access
CBCadja Bachmann
Cadja Bachmann
HAHenry Abramovitch
Henry Abramovitch
CBCarmen Gabriela Barbu
Carmen Gabriela Barbu
Afonso CavacoAfonso Cavaco
Afonso Cavaco
RERosario Dago Elorza
Rosario Dago Elorza
MRMarcy Rosenbaum
Marcy Rosenbaum

1 October 2017 in Oral Oncology
Verified
Journal Article
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Simin LiSimin Li
Simin Li
XCXiujie Chen
Xiujie Chen
XLXiangqiong Liu
Xiangqiong Liu
YYYang Yu
Yang Yu
HPHongying Pan
Hongying Pan
GSGerhard Schmalz
Gerhard Schmalz

1 July 2020 in Caries Research
Verified
Journal Article
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CSChristian H. Splieth
Christian H. Splieth
ABAvijit Banerjee
Avijit Banerjee
Peter BottenbergPeter Bottenberg
Peter Bottenberg
Lorenzo BreschiLorenzo Breschi
Lorenzo Breschi
GCGuglielmo Campus
Guglielmo Campus
SDSophie Doméjean
Sophie Doméjean
This paper provides recommendations for dentists for the treatment of dental caries in children, with an emphasis on early childhood caries (ECC), primary teeth, and occlusal surfaces in permanent teeth. A consensus workshop followed by an e-Delphi consensus process was conducted with an expert panel nominated by the European Organization for Caries Research (ORCA) and European Federation of Conservative Dentistry (EFCD)/German Association of Conservative Dentistry (DGZ) boards. Based on 3 systematic reviews and a nonsystematic literature search, recommendations were developed. The caries decline has led to a more polarized disease distribution in children and adolescents along social gradients which should be taken into account when managing the caries process at all levels, such as the individual, the group, or a population. The control or reduction of caries activity is the basis for successful caries management. In children, caries management requires adequate daily oral hygiene and fluoride application via toothpaste, ensured by caregivers, and especially for ECC prevention an emphasis on sugar intake reduction is needed. These noninvasive interventions are also suitable to arrest or control initial or even cavitated dentine caries lesions in the absence of irreversible pulpitis. Fluoride varnish or silver diammine fluoride can be added as supplementary agents. In pits and fissures, composite resin materials can be used as preventive sealants and for defect-oriented minimally invasive restorations. In primary molars, preformed metal crowns are more successful than multisurface fillings, especially in caries-active patients. With persisting high caries activity, multiple lesions, and limited cooperation, caries control should consist of robust measures with high success rates, even including extraction in selected cases. This applies especially to treatments performed under general anesthesia.

1 April 2017 in Journal of Periodontology
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Journal Article
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JSJan Schmickler
Jan Schmickler
ARAnnegret Rupprecht
Annegret Rupprecht
SPSusann Patschan
Susann Patschan
DPDaniel Patschan
Daniel Patschan
GMGerhard A. Müller
Gerhard A. Müller
DZDirk Ziebolz
Dirk Ziebolz
Background: This study evaluates periodontal conditions and microbiologic findings and their influence on rheumatologic disease parameters in patients with rheumatoid arthritis (RA).Methods: One hundred and sixty‐eight patients with RA were included. A healthy control group (HC, n = 168) was composed according to age, sex, and smoking habits. Rheumatologic data (duration of illness, Disease Activity Score 28, rheumatic factor [RF], anti‐cyclic citrullinated peptide [aCCP], medications) were extracted from patients’ records. Dental examination included: 1) dental findings (decayed, missing, and/or filled adult teeth [DMF‐T] index); 2) gingival inflammation (papillary bleeding index [PBI]); and 3) periodontal status (probing depth [PD], attachment loss [AL]). Periodontal condition was classified as healthy/mild, moderate, or severe periodontitis. Subgingival biofilm was analyzed regarding 11 periodontopathogenic bacteria. Statistical analyses included: 1) Kolmogorov–Smirnov test; 2) Mann–Whitney U test; 3) Pearson χ2 test; 4) Kruskal–Wallis test; and 5) regression analysis; level of significance α = 5%.Results: Mean DMF‐T was significantly higher in patients with RA (19.3 ± 4.8) than in HC group (16.9 ± 5.8), especially owing to number of missing teeth (RA = 6.0 ± 5.4, HC = 3.1 ± 3.3; P <0.01). Patients with RA had a significantly higher proportion of increased PD (P <0.01) and AL compared with HC group (P <0.01). Moderate to severe periodontitis was noted in 98% of patients with RA and 82% of the HC group (P <0.01). RF‐positive patients with RA suffered from worse periodontal conditions than RF‐negative patients (P = 0.01). Age, PBI, and presence of Treponema denticola (P <0.03) are related to periodontal condition in patients with RA. Although not statistically significant, Porphyromonas gingivalis and Fusobacterium nucleatum occur in higher concentrations more often in aCCP‐positive patients with RA (P = 0.06).Conclusions: Patients with RA had worse periodontal conditions than HC participants. Although a trend for higher F. nucleatum and P. gingivalis concentrations in aCCP‐positive patients with RA was found, importance of periodontal pathogenic bacteria and rheumatoid parameters in the interrelationship between periodontitis and RA remains unclear.

8 March 2018 in Journal of Periodontal Research
Verified
Journal Article
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Simin LiSimin Li
Simin Li
XLX. Liu
X. Liu
HLH. Li
H. Li
HPH. Pan
H. Pan
DBDivyashri Baraniya
Divyashri Baraniya
DZDirk Ziebolz
Dirk Ziebolz

3 May 2017 in Applied Sciences
Verified
Journal Article
Open access
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Hartmut SchneiderHartmut Schneider
Hartmut Schneider
KPKyung-Jin Park
Kyung-Jin Park
MHMatthias Häfer
Matthias Häfer
CRClaudia Rüger
Claudia Rüger
GSGerhard Schmalz
Gerhard Schmalz
Rainer HaakRainer Haak
Rainer Haak
Across all medical disciplines, therapeutic interventions are based on previously acquired diagnostic information. In cariology, which includes the detection and assessment of the disease “caries” and its lesions, as well as non-invasive to invasive treatment and caries prevention, visual inspection and radiology are routinely used as diagnostic tools. However, the specificity and sensitivity of these standard methods are still unsatisfactory and the detection of defects is often afflicted with a time delay. Numerous novel methods have been developed to improve the unsatisfactory diagnostic possibilities in this specialized medical field. These newer techniques have not yet found widespread acceptance in clinical practice, which might be explained by the generated numerical or color-coded output data that are not self-explanatory. With optical coherence tomography (OCT), an innovative image-based technique has become available that has considerable potential in supporting the routine assessment of teeth in the future. The received cross-sectional images are easy to interpret and can be processed. In recent years, numerous applications of OCT have been evaluated in cariology beginning with the diagnosis of different defects up to restoration assessment and their monitoring, or the visualization of individual treatment steps. Based on selected examples, this overview outlines the possibilities and limitations of this technique in cariology and restorative dentistry, which pertain to the most clinical relevant fields of dentistry.