Poliklinik für Kieferorthopädie, Präventive Zahnmedizin und Kinderzahnheilkunde
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- Poliklinik für Kieferorthopädie, Präventive Zahnmedizin und Kinderzahnheilkunde (42)
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1. The study confirms an association between transverse arch dimensions and severity of ankyloglossia, which reflects relationship between molar difference and free tongue. 2. Molar difference in group A (complete and severe ankyloglossia cases) has high negative values (average -4.38) which was much smaller than the data from the literature concerning many different types of occlusion. 99 3. The exact relation between transverse arch dimension and severity of ankyloglossia needs further research.
Therapeutic Sealing of Proximal Tooth Surfaces: Two-Year Clinical and Radiographic Evaluation
(2009)
The diagnosis, prevention and treatment of proximal carious lesions comprise a constant problem in clinical dentistry. The purpose of this investigation was to test the safety and clinical effect of a new treatment for proximal caries. In 50 patients with two proximal initial lesions (D1-3 without cavitation, bitewing X-ray), orthodontic rubber rings were applied to gain access to the interproximal space. One of the lesions was sealed with a thin polyurethane-dimethacrylate foil using a bonding agent (Heliobond®, Vivadent, Schaan/Liechtenstein); the other lesion received oral home-care with dental floss and fluoridated toothpaste and was left as control. In clinical follow-ups after 6 and 12 months and X-ray evaluation after two years, clinical retention of proximal tape and the underlying sealant, marginal adaptation, discoloration, tooth vitality, proximal plaque and gingivitis were checked. In addition, caries was assessed clinically and radiographically. The sealants showed good retention, marginal adaptation and colour. After two years, vitality of all teeth was still positive and no relevant differences in plaque accumulation or gingival status were found between sealed and control teeth. Two sealed surface had to be filled due to caries progression (D3 with cavitation). 9 sealed lesions showed caries regression. In contrast, only 4 control lesions regressed and also two showed progression. The loss of tape had no significant influence on the lesion progression indicating the effect of the underlying bond. All other sealants and control lesions were stable indicating an arrest of the lesion. In conclusion, sealing initial proximal lesions showed no clinical problems and mostly arrest of initial carious lesions on bitewing X-rays.
A 2-day workshop of ORCA and the IADR Cariology Research Group was organized to discuss and reach consensus on definitions of the most commonly used terms in cariology. The aims were to identify and to select the most commonly used terms of dental caries and dental caries management and to define them based on current concepts. Terms related to definition, diagnosis, risk assessment, and monitoring of dental caries were included. The Delphi process was used to establish terms to be considered using the nominal group method favored by consensus. Of 222 terms originally suggested by six cariologists from different countries, a total of 59 terms were reviewed after removing duplicates and unnecessary words. Sixteen experts in cariology took part in the process of reaching consensus about the definitions of the selected caries terms. Decisions were made following thorough “round table” discussions of each term and confirmed by secret electronic voting. Full agreement (100%) was reached on 17 terms, while the definitions of 6 terms were below the agreed 80% threshold of consensus. The suggested terminology is recommended for use in research, in public health, as well as in clinical practice.
A 2-day workshop of ORCA and the IADR Cariology Research Group was organized to discuss and reach consensus on definitions of the most commonly used terms in cariology. The aims were to identify and to select the most commonly used terms of dental caries and dental caries management and to define them based on current concepts. Terms related to definition, diagnosis, risk assessment, and monitoring of dental caries were included. The Delphi process was used to establish terms to be considered using the nominal group method favored by consensus. Of 222 terms originally suggested by six cariologists from different countries, a total of 59 terms were reviewed after removing duplicates and unnecessary words. Sixteen experts in cariology took part in the process of reaching consensus about the definitions of the selected caries terms. Decisions were made following thorough “round table” discussions of each term and confirmed by secret electronic voting. Full agreement (100%) was reached on 17 terms, while the definitions of 6 terms were below the agreed 80% threshold of consensus. The suggested terminology is recommended for use in research, in public health, as well as in clinical practice.
The Study of Health in Pomerania (SHIP), a population-based study from a rural state in northeastern Germany with a relatively poor life expectancy, supplemented its comprehensive examination program in 2008 with whole-body MR imaging at 1.5 T (SHIP-MR). We reviewed more than 100 publications that used the SHIP-MR data and analyzed which sequences already produced fruitful scientific outputs and which manuscripts have been referenced frequently. Upon reviewing the publications about imaging sequences, those that used T1-weighted structured imaging of the brain and a gradient-echo sequence for R2* mapping obtained the highest scientific output; regarding specific body parts examined, most scientific publications focused on MR sequences involving the brain and the (upper) abdomen. We conclude that population-based MR imaging in cohort studies should define more precise goals when allocating imaging time. In addition, quality control measures might include recording the number and impact of published work, preferably on a bi-annual basis and starting 2 years after initiation of the study. Structured teaching courses may enhance the desired output in areas that appear underrepresented.
Abstract
Aim
Observational research suggests that periodontitis affects psoriasis. However, observational studies are prone to reverse causation and confounding, which hampers drawing causal conclusions and the effect direction. We applied the Mendelian randomization (MR) method to comprehensively assess the potential bi‐directional association between periodontitis and psoriasis.
Materials and Methods
We used genetic instruments from the largest available genome‐wide association study of European descent for periodontitis (17,353 cases, 28,210 controls) to investigate the relationship with psoriasis (13,229 cases, 21,543 controls), and vice versa. Causal Analysis Using Summary Effect (CAUSE) estimates and inverse variance‐weighted (IVW) MR analyses were used for the primary analysis. Robust MR approaches were used for sensitivity analyses.
Results
Both univariable methods, CAUSE and IVW MR analyses, did not reveal any impact of periodontitis on psoriasis (CAUSE odds ratio [OR] = 1.00, p = 1.00; IVW OR = 1.02, p = .6247), or vice versa (CAUSE OR = 1.01, p = .5135; IVW OR = 1.00, p = .7070). The null association was corroborated by pleiotropy‐robust methods with ORs close to 1 and p‐values >.59. Overall, MR analyses did not suggest any effect of periodontitis on psoriasis. Similarly, there was no evidence to support an effect of psoriasis on periodontitis.
Conclusions
Within the limitations of this MR study, the outcomes supported neither periodontitis affecting psoriasis nor psoriasis affecting periodontitis.
Objective: To compare the effectiveness and complications of intraligamentary anesthesia
(ILA) with conventional inferior alveolar nerve block (IANB) during injection and dental
treatment of mandibular posterior teeth.
Materials and Methods: In this randomized, prospective clinical trial, 72 patients (39 males, 33
females) patients scheduled for dental treatment of mandibular posterior teeth, were randomly
allocated to ILA group (n=35) received ILA injection or IANB group (n=37) received the
conventional IANB. Our primary outcome was to assess pain and stress (discomfort) during the
injection and dental treatment, using the Numeric Rating Scale (NRS) from 0 to 10 (0 = no
pain, 10= the worst pain imaginable). Whereas; recording 24 hours postoperative complications
were our Secondary outcomes.
Results: Patients in ILA group reported significantly less pain during injection when compared
with IANB group (p=0.03). While pain during dental treatment was similar in both groups
(p=0.2). Patients in both groups also reported similar low values of discomfort during treatment
(p= 0.7). Although no signs of nerve contact or any other postoperative complications were
observed, five patients in IANB group (none in ILA group) reported temporary irritations
Conclusion: This study showed equivalent effectiveness of both intraligamentary anesthesia
and conventional inferior alveolar nerve block, for pain control during routine dental treatment
of mandibular posterior teeth. Nevertheless, ILA showed significantly less pain during
injection. No major postoperative complications in both groups were observed.
Clinical Relevance: ILA could be considered as an effective alternative for routine dental
treatment.
Due to the wide range of reported prevalence of Molar-Incisor-Hypomineralisation (MIH) found in regional studies, the aim of this study was to determine the prevalence of MIH in school children at different areas in Germany and to compare the findings to other studies. In the compulsory dental school examination, the first permanent molars, permanent incisors and second primary molars were examined for the presence of MIH according to EAPD criteria (Lygidakis et al., 2010; Weerheijm et al., 2003) in 2395 children attending 2nd to 4th grade (mean age 8.1 ±0.8 years, range 7- 10 years) in four regions in Germany. Examinations were performed by five calibrated examiners (Kappa> 0.9) on clean teeth after brushing. The MIH prevalence at the four regions differed considerably (Düsseldorf 14.6 %, Hamburg 14.0 %, Heidelberg 6.0 %, Greifswald 4.3%) with a mean prevalence of 10.1 % (10.7 % boys, 9.5 % girls, χ2-test: p= 0.57). The caries prevalence was low in general, but children with MIH exhibited statistically significantly higher caries experience in the primary and permanent dentition (MIH group: dmft 2.0 ±2.5; DMFT 0.2 ±0.6; other children: dmft 1.5 ±2.2; DMFT 0.1 ±0.5; t-test: p= 0.001 and p< 0.001, respectively). The mean number of permanent teeth affected by MIH was 2.8 (±1.7). 12.0 % of the children with MIH also had at least one affected primary molar which resulted in a statistically significant correlation for MIH in primary and permanent teeth (p< 0.01, Spearmans correlation). Most of the affected teeth had demarcated opacities (81.2 %), but more than half of the affected children showed at least one tooth with a severe form of MIH characterized by breakdown of the tooth, atypical restorations or pain during brushing or eating. In conclusion, MIH is a clinically and epidemiologically relevant problem in German school children. The prevalence which is highly varying in different regions requires more research on the aetiology of MIH. The high rate of severe forms is of clinical concern. The findings of the present study stress the need for educating present and future dentists and pediatric specialists in MIH, as well as for developing public health policies for the prevention and adequate treatment of MIH.
Prediction of high caries increment in adults – a 5-year longitudinal study from North-East Germany
(2013)
The aim of this study is to develop an easily applicable prediction model for high coronal caries increment in adults (20-79 years) from a representative sample (N=2,565) to identify a high risk-group for specific caries prevention. The data from SHIP-0 (1997-2001) and the 5-year follow-up SHIP-1 (2002-2006) is used for analyses. The oral health examination was conducted according to WHO criteria [1997]. The drop-out analysis reveals that drop-outs are significantly older, have a lower school education, are more frequently current smokers, but have a better self-perception of their teeth. The majority of the study-population (76%) has caries incidence in this 5-year period. Caries increment shows a polarized distribution, as the high caries increment group (≥9 surfaces in half-mouth, 11.4% of the sample) comprise 40% of the total increment. The variables male gender, age ≥40 years, lower school education or lower income, current smoking, pain-associated dental visit, baseline caries experience and a non-satisfying self-perception of teeth show a statistically significant influence on high caries increment. The prediction model allows a fair to good prediction on an epidemiological level for men (AUC=0.75). The factors smoking, school education and pain-associated visit only have a significant impact on the prediction of high caries increment in men. Due to very high caries prevalence and increment a population-based prevention in adults should be optimized first, before risk-group specific preventive programmes might be implemented.
The aim of this study was to analyse the predictive power of several clinical baseline parameters and the de-/remineralisation properties of in vivo etched sites measured with quantitative light-induced fluorescence (QLF) for subsequent 2-year caries increment. At baseline, in 44 children (8.23 ± 1.5 years) two areas (diameter 2 mm) of the buccal surface of a primary posterior tooth were etched with 36% phosphoric acid gel for 1 and 4 min, respectively. The etched sites were analysed immediately after etching (ΔQ1) and 24 h (ΔQ2) later by QLF. Additionally, caries status (deft/DMFT and initial caries), approximal plaque, bleeding on probing, and the patient’s current use of fluorides were recorded. In the 2-year follow-up, 29 children were re-assessed. After clinical examination, the caries increment was calculated (ΔDMFT) and correlated with the baseline clinical variables and the QLF readings. Results showed a significant positive correlation between ΔQ<sub>1 min</sub> and the ΔDMFT (r = 0.44, p = 0.02). The ΔDMFT was significantly correlated with the baseline deft (r = 0.56, p = 0.002), cavitated active caries lesions (r = 0.52, p = 0.003), and filled teeth (r = 0.53, p = 0.003). In a regression analysis the use of fluoridated salt (SC = –0.10) and fluoride gel (SC = –0.14) were negatively associated with ΔDMFT. In conclusion, these findings suggest that the demineralisation properties of the etched sites and the outcome of the 24-hour measurements with QLF are significantly associated with caries increment. Previous caries experience strongly correlated with caries increment in this group of children.