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Diabetes mellitus has been linked with an increased risk for oral diseases, especially periodontitis. However, studies results were not consistent. The present study was conducted to evaluate whether both type 1 (T1DM) and type 2 diabetes mellitus (T2DM) are associated with increased prevalence and extent of periodontal disease and tooth loss compared with non-diabetic subjects within a homogeneous adult study population. T1DM, T2DM and non-diabetic subjects were recruited from the population-based Study of Health in Pomerania (SHIP). Additionally, T1DM subjects were retrieved from a Diabetes Centre in the same region. The total study population comprised 145 T1DM and 2,647 non-diabetic subjects aged 20-59 years, and 182 T2DM and 1,314 non-diabetic subjects aged 50-81 years. Multivariable regression revealed an association between T1DM and mean attachment loss (B=0.40 [95% CI; 0.19, 0.61], adjusted). Also, T1DM was positively associated with increased number of missing teeth after full adjustment (p<0.001). The association between T1DM and tooth loss was enhanced in subjects aged 40-49 and 50-59 years (p for interaction=0.01). In T2DM subjects, mean attachment loss was significantly higher compared with non-diabetic subjects (B=0.47 [95% CI; 0.21, 0.73], adjusted). The effect of T2DM was significantly enhanced in 60-69-years-old subjects (p for interaction=0.04). The association between T2DM and number of missing teeth was not statistically significant after adjustment (p=0.25). Analyses showed that the effect of T2DM on tooth loss was pronounced in females compared with males (p for interaction=0.01). In accordance with previous literature, present results suggested that periodontal diseases and tooth loss can been seen as a complication of both types of diabetes. Generally, periodontal diseases are preventable and treatable. Therefore, appropriate goals and strategies for improving periodontal health in subjects with diabetes need to be developed. Further, early detection and careful managed therapeutics with the physician and dentist working hand-in-hand may prove beneficial to the patient–s general health.
Because of some disadvantages of chemical disinfection in dental practice (especially denture cleaning), we investigated the effects of physical methods on Candida albicans biofilms. For this purpose, the antifungal efficacy of three different low-temperature plasma devices (an atmospheric pressure plasma jet and two different dielectric barrier discharges (DBDs)) on Candida albicans biofilms grown on titanium discs in vitro was investigated. As positive treatment controls, we used 0.1% chlorhexidine digluconate (CHX) and 0.6% sodium hypochlorite (NaOCl). The corresponding gas streams without plasma ignition served as negative treatment controls. The efficacy of the plasma treatment was determined evaluating the number of colony-forming units (CFU) recovered from titanium discs. The plasma treatment reduced the CFU significantly compared to chemical disinfectants. While 10 min CHX or NaOCl exposure led to a CFU log10 reduction factor of 1.5, the log10 reduction factor of DBD plasma was up to 5. In conclusion, the use of low-temperature plasma is a promising physical alternative to chemical antiseptics for dental practice.
Chronic infections, including periodontal infections, may reduce lung function. To date, there are hardly any population-based studies evaluating the association between periodontitis and lung function. However, there are some studies that used variables associated with obstructive pulmonary diseases (FEV1, FEV1/FVC). Thus, we aimed to assess the potential association of periodontal diseases with lung volumes and airflow limitation in the population-based Study of Health in Pomerania (SHIP). Of 3300 participants aged 25-85 years of the 5-year follow-up (SHIP-1), 1809 subjects participated in lung function examinations. 1465 subjects were included in the analyses. Lung function was measured using spirometry, body plethysmography, helium dilution, and diffusing capacity for carbon monoxide. Periodontal status was assessed by clinical attachment loss, probing depth, and number of missing teeth. Linear regression models using fractional polynomials were used to assess linear and non-linear associations between periodontal disease and lung function adjusting for confounders. Adjusting for age, sex, waist circumference, physical activity, diabetes, asthma, and time between core and pulmonary examination, mean attachment loss was significantly associated with variables of dynamic and static lung volumes, airflow limitation and hyperinflation. Total lung capacity and diffusing capacity for carbon monoxide were not associated with mean attachment loss. Adjustment for smoking and height considerably changed coefficients indicating profound confounding. Including fibrinogen and high sensitive CRP into fully adjusted models did not change coefficients of mean attachment loss. Restricted to never smokers, mean attachment loss was significantly associated with FEV1, FVC, and RV/TLC. Relations with lung function were confirmed for mean probing depth, extent measures of attachment loss/probing depth, and number of missing teeth. Periodontal disease was significantly associated with decreased lung function. Systemic inflammation did not provide a mechanism linking both diseases. However, cohort studies evaluating lung function in the current manner are needed to confirm results from this study and to assess a causal relationship. Furthermore, it needs to be investigated with the help of randomized clinical trials whether prevention or treatment of periodontitis might have a beneficial impact on lung function.
Sealing ability of ProRoot MTA when placed as an apical barrier using three different techniques
(2013)
A one-visit apexification protocol with Mineral Trioxide Aggregate (MTA) can be seen as an alternative to the traditional treatment practices with calcium hydroxide. The aim of this study was to investigate the sealing ability of ProRoot MTA when placed as an apical barrier using three different techniques. Sixty freshly extracted single-rooted human teeth were decoronated and standardized to a root length of 15mm. The root segments were prepared with Gates Glidden burs (size 1-6) to simulate the clinical situation of an open apex and randomly assigned into 3 experimental groups of 20 samples each. 5mm MTA was placed by pluggers (Group 1) paper points (Group 2) or ultrasonic tips (Group 3). Radiographs were taken to verify the placement of the apical barriers. After obturation of all samples with warm gutta-percha (Obtura) and AH26 sealer, the coronal portion of all samples was sealed with Cavit. The root segments were then double coated with nail varnish except for the open apex and were exposed to methylene blue dye for 48 hours at room temperature. Afterwards, the samples were sectioned longitudinally and the extent of dye penetration was measured with a stereomicroscope. The mean depth of dye leakage for Group 1 was 1.34mm (±0.5 SD) Group 2 1.25mm (±0.4 SD) and Group 3 1.14mm (± 0.4 SD). Statistical analysis showed that there were no significant differences among the 3 experimental groups (0.178<p<0.552). In conclusion, ProRoot MTA has a similar sealing ability when placed as an apical barrier with pluggers, paper points or ultrasonic tips.
Aim: To evaluate the association of Insulin-like Growth Factor (IGF) I related variables with periodontitis in the population-based Study of Health in Pomerania (SHIP). Material and Methods: From the cross-sectional SHIP, 2293 subjects with clinical attachment loss (CAL) data and 2398 subjects with tooth count data aged 20-59 years were analysed. Serum IGF-I and IGF binding protein (BP)-3 levels were determined by chemiluminescence immunoassays. Linear and logistic regressions with fractional polynomials were used to study associations between IGF-related variables and mean CAL or high tooth loss. For non-linear relations between IGFBP-3 and mean CAL, graphical presentations of fractional polynomials were used to deduce knots for linear splines. Results: In fully adjusted models, for serum IGFBP-3 values ≤1200 ng/mL, mean CAL increased significantly for decreasing serum IGFBP-3 levels (B=-0.027 (95% CI, -0.049; -0.005), p=0.02). The odds for high tooth loss decreased significantly for high serum IGFBP-3 values (OR=0.97 (0.95; 0.99), p=0.02). Serum IGF-I levels and the IGF-I/IGFBP-3 ratio were not related to mean CAL or tooth loss after full adjustment. Conclusions: Low serum IGFBP-3 levels might be associated with higher levels of periodontal disease. Neither serum IGF-I nor IGF-I/IGFBP-3 ratios were associated with periodontitis.
Background: Restorative treatment for children’s teeth is still an important aspect of dentistry. In the light of an only moderate caries decline in the primary dentition and a persistently low care index in Germany during the past years [DAJ 2010], there is still a demand for further work on recent patterns and outcomes of restorative treatments in primary teeth placed in everyday practices under the Germany National Health System. Objectives: The present study aimed firstly to describe the prevalence of caries and restorations in the primary teeth in Berlin and Germany from the representative Germany surveys [DAJ 2010], secondly, to describe the frequency and distribution of restorative treatment in primary teeth performed in everyday dental practice in Berlin including children age groups from 1- to 13-years of age, thirdly, to evaluate the outcomes of restorative treatment performed in everyday dental practices in these children and finally to compare results of the present study with data from the German National Health System [KZBV 2011] and randomized community data on the longevity of restorations in primary teeth in Denmark [Qvist et al. 2010a]. Material and Methodology: In the first part of present study data from representative German surveys [DAJ 2010] were interpreted to describe and compare the prevalence of caries and restorations in the primary teeth in Berlin and Germany. For the second and third parts data generated from German National Health System in Berlin (KZV-Berlin) on fillings done in everyday practices in primary teeth of 1- to 13-year-olds during 2010/2011 were collected. This data included: distribution of children with dental treatment regardless of the type of intervention provided, of children who received restorative treatments in primary teeth during dental care visits including total number of fillings per child, the number of filled tooth surfaces, retreatment with another filling, stainless steel crowns, pulp involvement and extractions after prior filling therapy. Information on the age of the original fillings at the time of retreatment was also included. The collected data then were entered into a data base for descriptive and analytical analysis. The results were compared with equivalent data from the German National Health System [KZBV 2011] and randomized community data from Denmark [Qvist et al. 2010a]. Results: Result showed a high similarity in patterns of caries and restorative treatment in primary teeth in Berlin and all of Germany as reported in the representative German surveys [DAJ 2010]. About of 84% of 1-13-year-olds insured in the German National Health System in Berlin received dental care during 2010/2011, with considerably lower rates in very young children. Fillings in primary teeth were performed in 31.17% of all children attending the dentist. Most restorations were placed in 5-8-year-olds. In 1-13-year-olds mostly just one filling was placed, more than five fillings were per child were recorded on average for very young age groups (1-4-year-olds). 55.60% of all fillings in primary teeth were two-surface restorations, whereas more than three-surface restorations comprised 6.17% of all fillings and they were performed most frequently in young children of 1-4-years of age. Retreatment to fillings in primary teeth was 7.66% of fillings placed in 1-13-year-olds. Most retreatments took place from 5 to 9 years of age with a peak in 6-year-olds. In 1-3-year-old children fillings showed shorter mean age at the time of retreatment compared to 7-year-olds and above. Retreatment of fillings in primary teeth by stainless steel crowns was very limited with only 5.16% of all retreatments and it was preferred in children from 3 to 7 years of age. The retreatment with pulp involvement was 11.27% of all retreatments. Extractions were almost as often as retreatment as another filling (ratio 4:5), but they were preferred in older children due to the course of exfoliation. Conclusions: Under the conditions of this retrospective study, the restorative treatment with fillings performed within the National Health System in primary teeth in Berlin was very successful with low rates of retreatment and the fillings shows comparable results to data on the longevity of restorations in primary teeth in Denmark. The study highlighted the need to a structured program for prevention in primary teeth, especially for very young children with high caries activity and possibly also different treatment structures with specialized dentists in this field who can perform oral rehabilitations with pulpotomies and stainless steel crowns.
The Institute of German Dentists [Institut der Deutschen Zahnärzte (IDZ)] conducted four national cross-sectional surveys of oral health in the German resident population [German Oral Health Studies, "Deutsche Mundgesundheitsstudien", (DMS)]: in 1989 (DMS I, only West Germany), 1992 (DMS II, only East Germany), 1997 (DMS III), and 2005 (DMS IV). In this study, the first two surveys (1989/92) were merged to achieve comparability with the last two studies. The Studies of Health in Pomerania (SHIP) are two independent regional cross-sectional population-based studies conducted during 1997-2001 (SHIP-0) and 2008-2012 (SHIP-Trend) in northeast Germany. In this thesis, we addressed three main questions: First, we aimed to explore the relative contributions of clinical oral health variables assessing caries, periodontal status, and prosthetic status to self-perceived oral health by means of an age-specific approach in DMS IV. Second, we aimed to assess the changes of dental health in West and East Germany between 1989 and 2005 in DMS I-IV. Third, we aimed to evaluate the changes of periodontal status and number of teeth within the last decade based on data from the DMS and the SHIP studies. To explore the associations of self-perceived oral health with clinical oral health variables, we developed separate multinomial logistic regression models for adults and seniors in DMS IV by using stepwise methods. To assess the changes of dental health in West and East Germany between 1989 and 2005, we applied regression models and assessed associations between region, survey year, their interactions and variables assessing dental disease status (number of missing, filled, decayed and sound teeth, the DMFT-index and the probability of having ≤20 teeth), adjusting for potential risk factors for caries. To assess changes of periodontal status in Germany, prevalences, percentages and numbers of teeth affected were defined. In summary, the number of unreplaced teeth showed the strongest association with self-perceived oral health in adults and was the second variable to enter the model for seniors during the stepwise selection process. Between 1997 and 2005, the number of missing teeth considerably decreased in DMS but East Germans had consistently more missing teeth than West Germans in each survey year. Further, during the last decade, the periodontal status significantly improved in SHIP and in West German adults, which might translate into a even higher tooth retention in the future.
Estimating effects of craniofacial morphology on gingival recession and clinical attachment loss
(2017)
Objectives: Currently, evidence for the association between face morphology, attachment loss and
recession is lacking. Face type can be described by the ratio of facial width and facial length. We
hypothesize, that the facial type might be related to gingival recession (REC) and clinical attachment
loss (CAL) and that a broad face is associated with less recession and attachment loss than a long
face.
Materials and methods: Data from the 10 year follow-up of the Study of Health in Pomerania
(SHIP-2; 2008-2012; 2333 participants) were used. Periodontitis was assessed by probing depth (PD)
and clinical attachment loss (CAL). Generalized regression models were used to assess associations
between specific landmark distances extracted from magnetic resonance images (MRI) head scans
and clinically assessed gingival recession adjusting(REC) or clinical attachment loss(CAL) adjusting
for relevant confounders.
Results: Maximum cranial width was negatively associated with mean REC and mean CAL
(p<0.05). Also, higher mean REC and higher mean CAL correlate positively with long face
(B=0.361 with 95% CI), upper anterior facial height.
Conclusion: According to the results of the present study, gingival recession and clinical attachment
loss were associated with higher Prosopic face and facial length indices results.
The aim of the present study was to construct a biological age score reflecting one’s physiologic capability and aging condition with respect to tooth loss over 10 y. From the follow-up to the population-based Study of Health in Pomerania (i.e., SHIP-2), 2,049 participants were studied for their baseline biomarker measures 10 y before (i.e., in SHIP-0). Metabolic and periodontal data were regressed onto chronological age to construct a score designated as “biological age.” For either sex separately, the impact of this individualized score was used to predict tooth loss in the follow-up cohort in comparison with each participant’s chronological age. Outcome data after 10 y with respect to tooth loss, periodontitis, obesity, and inflammation were shown to be better for biologically younger subjects than as expected by their chronological age, whereas for the older subjects, data were worse. Especially for tooth loss, a striking increase was observed in subjects whose biological age at baseline appeared to be higher than their chronological age. Biological age produced significantly better tooth loss predictions than chronological age (P < 0.001). Areas under receiver operating characteristic curves for tooth loss of ≥3 teeth in men during follow-up were 0.811 and 0.745 for biological and chronological age, respectively. For women, these figures were 0.788 and 0.724. For total tooth loss, areas under the curve were 0.890 and 0.749 in men and 0.872 and 0.752 in women. Biological age combines various measures into a single score and allows identifying individuals at increased risk of tooth loss.
Evidence is limited regarding whether periodontal treatment improves hemoglobin A1c (HbA1c) among people with prediabetes and periodontal disease, and it is unknown whether improvement of metabolic status persists >3 mo. In an exploratory post hoc analysis of the multicenter randomized controlled trial “Antibiotika und Parodontitis” (Antibiotics and Periodontitis)—a prospective, stratified, double-blind study—we assessed whether nonsurgical periodontal treatment with or without an adjunctive systemic antibiotic treatment affects HbA1c and high-sensitivity C-reactive protein (hsCRP) levels among periodontitis patients with normal HbA1c (≤5.7%, n = 218), prediabetes (5.7% < HbA1c < 6.5%, n = 101), or unknown diabetes (HbA1c ≥ 6.5%, n = 8) over a period of 27.5 mo. Nonsurgical periodontal treatment reduced mean pocket probing depth by >1 mm in both groups. In the normal HbA1c group, HbA1c values remained unchanged at 5.0% (95% CI, 4.9% to 6.1%) during the observation period. Among periodontitis patients with prediabetes, HbA1c decreased from 5.9% (95% CI, 5.9% to 6.0%) to 5.4% (95% CI, 5.3% to 5.5%) at 15.5 mo and increased to 5.6% (95% CI, 5.4% to 5.7%) after 27.5 mo. At 27.5 mo, 46% of periodontitis patients with prediabetes had normal HbA1c levels, whereas 47.9% remained unchanged and 6.3% progressed to diabetes. Median hsCRP values were reduced in the normal HbA1c and prediabetes groups from 1.2 and 1.4 mg/L to 0.7 and 0.7 mg/L, respectively. Nonsurgical periodontal treatment may improve blood glucose values among periodontitis patients with prediabetes (ClinicalTrials.gov NCT00707369).