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1.
Eur Arch Paediatr Dent ; 25(2): 277-284, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38427158

ABSTRACT

PURPOSE: The study aimed to evaluate temporary fillings using Biodentine™ in asymptomatic deep carious lesions after 12, 24, and 36 months in school children from the remote village of Kerung, Nepal. METHODS: From November 2018 to November 2019, 91 temporary fillings were placed using Biodentine™ (a hydraulic calcium silicate cement) in permanent molars with deep carious lesions of schoolchildren in the remote district of Kerung, Nepal. These restorations were performed after selective caries removal in a non-dental setting with hand instruments and cotton roll isolation, as electric motors and saliva ejection systems were unavailable. In total, 78 single-surface and 13 multi-surface fillings were placed. Clinical and radiographic follow-up periods encompassed 12, 21, and 33 months, respectively. RESULTS: After 12 months, all single-surface fillings (100%) survived, whilst all multi-surface fillings were partially or entirely lost. The survival rate of single-surface restorations after 21 and 33 months was 67.6% and 50%, respectively. Radiographically, no pathology was observed. CONCLUSION: This study showed that Biodentine could be used in deep carious lesions as a temporary filling in single-surface lesions for at least up to 1 year and in a substantial number of cases for up to 21 and 33 months.


Subject(s)
Calcium Compounds , Dental Caries , Silicates , Humans , Calcium Compounds/therapeutic use , Dental Caries/therapy , Prospective Studies , Child , Follow-Up Studies , Silicates/therapeutic use , Female , Male , Nepal , Dental Restoration, Temporary , Molar , Dentition, Permanent , Pulp Capping and Pulpectomy Agents/therapeutic use
2.
Animal ; 17(4): 100730, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36868057

ABSTRACT

Cattle behaviour is fundamentally linked to the cows' health, (re)production, and welfare. The aim of this study was to present an efficient method to incorporate Ultra-Wideband (UWB) indoor location and accelerometer data for improved cattle behaviour monitoring systems. In total, 30 dairy cows were fitted with UWB Pozyx wearable tracking tags (Pozyx, Ghent, Belgium) on the upper (dorsal) side of the cow's neck. In addition to the location data, the Pozyx tag reports accelerometer data as well. The combination of both sensor data was performed in two steps. In the first step, the actual time spent in the different barn areas was calculated using location data. In the second step, accelerometer data were used to classify cow behaviour using the location information of step 1 (e.g., a cow located in the cubicles cannot be classified as feeding, or drinking). A total of 156 hours of video recordings were used for the validation. For each hour of data, the total time each cow spent in each area and performing which behaviours (feeding, drinking, ruminating, resting, and eating concentrates) were computed using the sensors and compared against annotated video recordings. Bland-Altman plots for the correlation and difference between the sensors and the video recording were then computed for the performance analysis. The overall performance of locating the animals into the correct functional areas was very high. The R2 was 0.99 (P < 0.001), and the root-mean-square error (RMSE) was 1.4 min (7.5% of the total time). The best performance was obtained for the feeding and lying areas (R2 = 0.99, P < 0.001). Performance was lower in the drinking area (R2 = 0.90, P < 0.01) and the concentrate feeder (R2 = 0.85, P < 0.05). For the combined location + accelerometer data, high overall performance (all behaviours) was obtained with an R2 of 0.99 (P < 0.001) and a RMSE of 1.6 min (12% of the total time). The combination of location and accelerometer data improved the RMSE of the feeding time and ruminating time compared to the accelerometer data alone (2.6-1.4 min). Moreover, the combination of location and accelerometer enabled accurate classification of additional behaviours that are difficult to detect using the accelerometer alone, such as eating concentrates and drinking (R2 = 0.85 and 0.90, respectively). This study demonstrates the potential of combining accelerometer and UWB location data for the design of a robust monitoring system for dairy cattle.


Subject(s)
Eating , Feeding Behavior , Female , Cattle , Animals , Behavior, Animal , Monitoring, Physiologic/veterinary , Monitoring, Physiologic/methods , Accelerometry/veterinary , Lactation , Dairying/methods
3.
Eur Arch Paediatr Dent ; 22(1): 99-108, 2021 Feb.
Article in English | MEDLINE | ID: mdl-32424690

ABSTRACT

PURPOSE: To compare oral health [dental caries, periodontal status, and erosive tooth wear (ETW)], diet and oral hygiene habits between obese and normal weight adolescents, and to explore possible risk associations. METHODS: In this case-control study, a convenience sample of 71 obese adolescents (age range 11-18) from a rehabilitation centre, and 54 age-sex-matched normal weight adolescents were selected for this study. Groups were defined using the Body Mass Index and growth curves for Flemish adolescents. Oral health was measured using DMFT, gingival, plaque and BEWE index. A validated questionnaire was utilized to assess diet and oral hygiene habits. Mann-Whitney U test was used to compare oral health between groups. Multivariate Firth's logistic regression analysis, conditional regression analysis and classification trees were used to detect associations between oral health and potential risk factors. RESULTS: Prevalence of ETW did not differ significantly between groups, although obese adolescents presented a significantly higher caries experience, gingivitis, presence of plaque and periodontal problems, compared to normal weight adolescents. After adjusting for age and sex, obesity was associated only with the presence of dental plaque (p ≤ 0.001). Obese participants reported a significantly higher intake of sugar-rich and caloric food items than normal weight group. The consumption of acidic drinks, however, was similar. CONCLUSION: Obese adolescents presented significantly higher caries experience, gingivitis and plaque, although after adjusting, obesity became significantly associated only with the presence of dental plaque.


Subject(s)
Dental Caries , Periodontal Diseases , Tooth Wear , Adolescent , Case-Control Studies , Child , Cross-Sectional Studies , Dental Caries/epidemiology , Dental Caries/etiology , Humans , Obesity/complications , Obesity/epidemiology , Prevalence
5.
Eur Arch Paediatr Dent ; 21(4): 509-518, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32519275

ABSTRACT

PURPOSE: To evaluate near-infrared light transillumination (NILT) for interproximal caries detection in children by comparing the correlation between both NILT and visual inspection (ICDAS) with bitewing (BW) radiography and by investigating possible differences in caries detection with NILT between primary and permanent teeth. METHODS: From 35 patients, 121 and 63 interproximal surfaces in, respectively, primary and permanent teeth were included. NILT images were obtained using DIAGNOcam™ (KaVo) and scored by two calibrated raters. A consensus diagnosis was reached for BW radiography; whereas, the ICDAS scores were obtained by one calibrated rater. Weighted Kappa (wκ) was used to evaluate inter- and intra-rater reliability of NILT and to evaluate the correlation between NILT, ICDAS and BW radiography. RESULTS: The correlation between NILT and BW radiography was moderate to substantial for primary teeth [Rater 1: wκ = 0.61 (95% CI = 0.49-0.75), Rater 2: wκ = 0.55 (95% CI = 0.41-0.69)] and fair for permanent teeth [Rater 1: wκ = 0.34 (95% CI = 0.15-0.53), Rater 2: wκ = 0.33 (95% CI = 0.08-0.58)]. The correlation between ICDAS and BW radiography was moderate for primary teeth [wκ = 0.49 (95% CI = 0.35-0.63)] and substantial for permanent teeth [wκ = 0.62 (95% CI = 0.32-0.92)]. No significant differences were found between primary and permanent teeth. CONCLUSION: NILT cannot be recommended as a single diagnostic tool for interproximal caries detection in primary teeth. The number of false negatives for dentine caries, especially in first primary molars, was too high. For the use in permanent teeth, NILT could be more accurate than BW radiography.


Subject(s)
Dental Caries , Transillumination , Child , Humans , Radiography, Bitewing , Reproducibility of Results , Sensitivity and Specificity , Tooth, Deciduous
6.
Ned Tijdschr Geneeskd ; 1642020 02 25.
Article in Dutch | MEDLINE | ID: mdl-32267647

ABSTRACT

BACKGROUND: Urethral coitus is rare and can arise in women who were born without a vagina, for instance in the context of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome. CASE DESCRIPTION: A 16-year-old girl presented at the general practitioner's surgery with primary amenorrhoea. After a long diagnostic process she was diagnosed with MRKH syndrome and treatment with a vaginal dilator was started. During follow-up the patient reported pain on coitus and that she sometimes lost a lot of fluid during intercourse. It appeared that the patient had dilated her urethra, not her vagina, and that she had had urethral coitus. The patient underwent Davydovvaginoplasty without complications. CONCLUSION: In patients with MRKH syndrome who experience urinary incontinence (particularly during and after coitus), recurrent urinary tract infections and dyspareunia urethral coitus should be suspected.


Subject(s)
46, XX Disorders of Sex Development/diagnosis , Coitus , Congenital Abnormalities/diagnosis , Dyspareunia/diagnosis , Mullerian Ducts/abnormalities , Urethra/physiopathology , Vagina/abnormalities , Adolescent , Dilatation , Female , Humans , Urinary Incontinence
7.
BMC Oral Health ; 19(1): 37, 2019 02 28.
Article in English | MEDLINE | ID: mdl-30819176

ABSTRACT

BACKGROUND: Special Olympics (SO) events represent an opportunity to obtain considerable information regarding intellectual disable (ID) patients. Studies done with SO data have shown an overview of the oral health status of these athletes; however, no information exists regarding the erosive tooth wear (ETW). Therefore, the aim of this study is to determine the presence and severity of ETW in athletes with ID who participated in the SO Belgium 2016. METHODS: The study population consisted in 232 athletes with ID who participated in the SO special smiles program, Belgium 2016. For analysis, the sample was divided in three groups: a) athletes with ID under the age of 25 not diagnosed with Down Syndrome (DS) (n = 174), b) athletes with DS under the age of 25 (n = 39) and c) athletes with DS from 25 and older ages (n = 58). Two calibrated dentists performed dental examinations using the Basic Erosive Wear Examination Index (BEWE). The BEWE sum > 0 was used to determine prevalence of ETW. Severity was determined by two- indicators: 1) By risk levels (low, medium and high risk) proposed by the BEWE index, and 2) by the highest score reached per subject in at least one tooth (BEWE1, 2 or 3). Chi-square test and Mann-Whitney U test were used to detect significant differences among different groups (p < 0.05). RESULTS: The prevalence of ETW for young athletes with ID was 51.14%. Within these athletes, the DS group presented a significant higher mean BEWE sum (4.67, SD 5.64) and prevalence of ETW (69.2%BEWE> 0) when compared to athletes without DS (mean BEWE sum: 1.96, SD 3.47 and 46.3% BEWE> 0; p < 0.05). Furthermore, a significantly higher percentage of athletes with DS were considered at high risk of ETW (p < 0.05). CONCLUSIONS: As a conclusion, half of the young athletes with ID presented at least one affected surface with ETW. The recorded prevalence and severity of ETW for the younger group of athletes with DS was distinctly higher than the athletes with ID not having DS. This shows the need to generate knowledge in order to provide correct management and prevention of erosive tooth wear in populations with ID.


Subject(s)
Intellectual Disability , Tooth Erosion , Tooth Wear/epidemiology , Aged , Athletes , Belgium , Humans , Middle Aged , Prevalence
8.
Clin Microbiol Infect ; 25(7): 907.e1-907.e6, 2019 Jul.
Article in English | MEDLINE | ID: mdl-30502489

ABSTRACT

OBJECTIVES: Mumps used to affect children between 2 and 15 years old. The mumps-measles-rubella (MMR) vaccine is available, with vaccine coverage rate of about 85% after two vaccine doses. Recently new mumps outbreaks have emerged in highly vaccinated populations; the causes for these new outbreaks are yet unknown. We tested if a difference in seroneutralizing capacity against the vaccine and wild-type viruses existed and if waning immunity could be detected. METHODS: In this study, 570 serum samples (age group 2-3 years (n = 96), 8-9 years (n = 95), 13-14 years (n = 94), 18-20 years (n = 96), 24-26 years (n = 92) and 50 + years (n = 97)) in Belgium were tested in the rapid fluorescent foci inhibition test for their neutralizing capacity against the vaccine and wild-type viruses. RESULTS: Neutralizing antibodies against the vaccine strain were present in 84% (81/97) of the 2-3-year, 74% (70/95) of the 8-9-year, 81% (76/94) of the 13-14-year, 76% (73/96) of the 18-20-year, 67% (62/92) of the 24-26-year and 77% (75/97) of the 50+-year age group serum samples. For all age groups, only about half of these serum samples were also positive for the wild-type virus. The geometric mean titres for the vaccine and wild-type virus for all younger age groups, except for 24-26 years, were significantly different, demonstrating poor in vitro cross-neutralization. CONCLUSIONS: A possible contribution of antigenic differences between the genotype A and G mumps virus as well as other immune factors, in addition to lower-than-optimal vaccination coverage and waning immunity, could explain the poor in vitro cross-neutralization and should be further studied.


Subject(s)
Antibodies, Neutralizing/blood , Antibodies, Viral/blood , Disease Outbreaks , Measles-Mumps-Rubella Vaccine/immunology , Mumps virus/immunology , Mumps/immunology , Adolescent , Adult , Belgium/epidemiology , Child , Child, Preschool , Cohort Studies , Female , Humans , Immunoglobulin G/blood , Male , Measles-Mumps-Rubella Vaccine/therapeutic use , Middle Aged , Mumps/epidemiology , Mumps virus/isolation & purification , Neutralization Tests , Vaccination Coverage , Young Adult
9.
Eur Arch Paediatr Dent ; 19(4): 245-253, 2018 Aug.
Article in English | MEDLINE | ID: mdl-29949083

ABSTRACT

AIM: This was primarily to perform a retrospective analysis of 1000 emergency dental visits in order to characterize the nature of the dental emergency and the treatment provided and secondly to define a guideline for dental emergency treatment in children including pain management. MATERIALS AND METHODS: A retrospective review was conducted of 1000 patients (aged 0-16 years) who visited the dental emergency service of the paediatric dental clinic at the Ghent University Hospital, Belgium over a period of 3 years. Data regarding age, gender, reason for visit, year of visit, consequent appointments and treatment provided were collected. Statistical analysis was carried out using descriptive statistics (frequency distribution) and Chi-square test, with significance level set as P < 0.05. RESULTS: The number of patients visiting with a dental emergency increased annually. Approximately half (50.2%) of all paediatric dental emergency consultations were based on pain due to caries and its consequences. More than a quartile (26.7%) of emergency patients suffered from dental trauma of either primar or permanent teeth. The majority (96.7%) of the patients reported pain, 16.3% of the patients did not necessarily need immediate attention. CONCLUSION: Dental emergencies in a university hospital based setting were predominantly related to caries and trauma. A precise definition of dental emergencies is recommended in order to prevent abuse of paediatric emergency services.


Subject(s)
Dental Caries/epidemiology , Emergencies/epidemiology , Pain Management , Tooth Injuries/epidemiology , Adolescent , Age Distribution , Belgium , Child , Child, Preschool , Dental Care for Children , Dental Caries/complications , Dental Caries/therapy , Dental Service, Hospital , Emergency Treatment , Female , Hospitals, University , Humans , Infant , Male , Pain Management/statistics & numerical data , Practice Guidelines as Topic , Retrospective Studies , Tooth Injuries/therapy , Toothache/epidemiology , Toothache/etiology , Toothache/therapy
10.
Eur Arch Paediatr Dent ; 19(2): 129, 2018 04.
Article in English | MEDLINE | ID: mdl-29546622

ABSTRACT

Owing to a misunderstanding on the part of the authors, the name of the last author, Prof. R. M. H. Verbeeck, was omitted from this article.

11.
Eur Arch Paediatr Dent ; 19(1): 1-22, 2018 02.
Article in English | MEDLINE | ID: mdl-29372451

ABSTRACT

INTRODUCTION: Biodentine™ has frequently been acknowledged in the literature as a promising material and serves as an important representative of tricalcium silicate based cements used in dentistry. AIM: To provide an update on the physical and biological properties of Biodentine™ and to compare these properties with those of other tricalcium silicate cements namely, different variants of mineral trioxide aggregate (MTA) such as ProRoot MTA, MTA Angelus, Micro Mega MTA (MM-MTA), Retro MTA, Ortho MTA, MTA Plus, GCMTA, MTA HP and calcium enriched mixture (CEM), Endosequence and Bioaggregate™. STUDY DESIGN: A comprehensive literature search for publications from November 20, 2013 to November 20, 2016 was performed by two independent reviewers on Medline (PubMed), Embase, Web of Science, CENTRAL (Cochrane), SIGLE, SciELO, Scopus, Lilacs and clinicaltrials.gov. Electronic and hand search was carried out to identify randomised control trials (RCTs), case control studies, case series, case reports, as well as in vitro and animal studies published in the English language. CONCLUSIONS: The enhanced physical and biologic properties of Biodentine™ could be attributed to the presence of finer particle size, use of zirconium oxide as radiopacifier, purity of tricalcium silicate, absence of dicalcium silicate, and the addition of calcium chloride and hydrosoluble polymer. Furthermore, as Biodentine™ overcomes the major drawbacks of MTA it has great potential to revolutionise the different treatment modalities in paediatric dentistry and endodontics especially after traumatic injuries. Nevertheless, high quality long-term clinical studies are required to facilitate definitive conclusions.


Subject(s)
Calcium Compounds/chemistry , Calcium Compounds/pharmacology , Dental Cements/chemistry , Dental Cements/pharmacology , Pulp Capping and Pulpectomy Agents/chemistry , Pulp Capping and Pulpectomy Agents/pharmacology , Silicates/chemistry , Silicates/pharmacology , Aluminum Compounds/chemistry , Aluminum Compounds/pharmacology , Animals , Drug Combinations , Humans , Oxides/chemistry , Oxides/pharmacology , Particle Size
12.
Nat Commun ; 8(1): 620, 2017 09 20.
Article in English | MEDLINE | ID: mdl-28931816

ABSTRACT

CD103+CD11b+ dendritic cells (DCs) are unique to the intestine, but the factors governing their differentiation are unclear. Here we show that transforming growth factor receptor 1 (TGFßR1) has an indispensable, cell intrinsic role in the development of these cells. Deletion of Tgfbr1 results in markedly fewer intestinal CD103+CD11b+ DCs and a reciprocal increase in the CD103-CD11b+ dendritic cell subset. Transcriptional profiling identifies markers that define the CD103+CD11b+ DC lineage, including CD101, TREM1 and Siglec-F, and shows that the absence of CD103+CD11b+ DCs in CD11c-Cre.Tgfbr1 fl/fl mice reflects defective differentiation from CD103-CD11b+ intermediaries, rather than an isolated loss of CD103 expression. The defect in CD103+CD11b+ DCs is accompanied by reduced generation of antigen-specific, inducible FoxP3+ regulatory T cells in vitro and in vivo, and by reduced numbers of endogenous Th17 cells in the intestinal mucosa. Thus, TGFßR1-mediated signalling may explain the tissue-specific development of these unique DCs.Developmental cues for the different dendritic cell (DC) subsets in the intestine are yet to be defined. Here the authors show that TGFßR1 signalling is needed for development of CD103+CD11b+ intestinal DCs from CD103-CD11b+ cells and that they contribute to the generation of Th17 and regulatory T cells.


Subject(s)
Cell Differentiation/genetics , Dendritic Cells/immunology , Intestinal Mucosa/immunology , Protein Serine-Threonine Kinases/genetics , Receptors, Transforming Growth Factor beta/genetics , T-Lymphocytes, Regulatory/immunology , Th17 Cells/immunology , Animals , Antigens, CD/immunology , CD11b Antigen/immunology , Cell Lineage , Colitis/immunology , Dendritic Cells/cytology , Immunity, Mucosal , Integrin alpha Chains/immunology , Intestinal Mucosa/cytology , Intestines/cytology , Intestines/immunology , Lymphopoiesis/genetics , Mice , Mice, Knockout , Receptor, Transforming Growth Factor-beta Type I , T-Lymphocytes, Regulatory/cytology , Th17 Cells/cytology
13.
Eur J Paediatr Dent ; 18(1): 66-68, 2017 Mar.
Article in English | MEDLINE | ID: mdl-28494607

ABSTRACT

BACKGROUND: Congenital Indifference to Pain (CIP) is a rare condition that inhibits the ability of patients to perceive physical pain but otherwise keeps normal sensory modalities. The condition has been mapped to an autosomal recessive trait to chromosome 2q 24.3 with mutations on the SCN9A gene. CASE REPORT: A 2 year old Caucasian female presented with CIP. Bite injuries, tongue wounds and unaccounted dental trauma episodes were frequently reported. Preventive instructions and possible treatment modalities were discussed with the parents. CONCLUSION: The cornerstone of treating CIP patients is an extensive preventive approach alongside regular oral examination at home by parents as well as routine recall appointments with dentists.


Subject(s)
Channelopathies/genetics , Mouth/injuries , NAV1.7 Voltage-Gated Sodium Channel/genetics , Pain Insensitivity, Congenital/genetics , Child, Preschool , Female , Humans , Mutation
14.
Dent Mater ; 33(4): e186-e203, 2017 04.
Article in English | MEDLINE | ID: mdl-28196604

ABSTRACT

OBJECTIVES: Glass ionomer cements (GICs) are a subject of research because of their inferior mechanical properties, despite their advantages such as fluoride release and direct bonding to bone and teeth. Recent research aims to improve the bioactivity of the GICs and thereby improve mechanical properties on the long term. In this study, two types of bioactive glasses (BAG) (45S5F and CF9) are combined with GICs to evaluate the physico-chemical properties and biocompatibility of the BAG-GIC combinations. The effect of the addition of Al3+ to the BAG composition and the use of smaller BAG particles on the BAG-GIC properties was also investigated. MATERIALS AND METHODS: Conventional aluminosilicate glass (ASG) and (modified) BAG were synthesized by the melt method. BAG-GIC were investigated on setting time, compressive strength and bioactivity. Surface changes were evaluated by Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), EDS and PO43- -and Ca2+ uptake in SBF. Biocompatibility of selected BAG-GICs was determined by a direct toxicity assay. RESULTS: The addition of BAG improves the bioactivity of the GIC, which can be observed by the formation of an apatite (Ap) layer, especially in CF9-containing GICs. More BAG leads to more bioactivity but decreases strength. The addition of Al3+ to the BAG composition improves strength, but decreases bioactivity. BAGs with smaller particle sizes have no effect on bioactivity and decrease strength. The formation of an Ap layer seems beneficial to the biocompatibility of the BAG-GICs. SIGNIFICANCE: Bioactive GICs may have several advantages over conventional GICs, such as remineralization of demineralized tissue, adhesion and proliferation of bone- and dental cells, allowing integration in surrounding tissue. CF9 BAG-GIC combinations containing maximum 10mol% Al3+ are most promising, when added in ≤20wt% to a GIC.


Subject(s)
Glass Ionomer Cements , Compressive Strength , Dental Materials , Glass , Materials Testing , Particle Size , Spectroscopy, Fourier Transform Infrared
15.
Eur Arch Paediatr Dent ; 18(2): 69-82, 2017 Apr.
Article in English | MEDLINE | ID: mdl-28238103

ABSTRACT

AIM: To provide a systematic review and meta-analyses investigating the association between overweight/obesity as defined by Body Mass Index (BMI) and periodontal disease in terms of clinical periodontal outcomes. MATERIALS AND METHODS: A systematic search of the literature was conducted by two authors (SR and SD) independently in the Cochrane Library, PubMed, Web of Science (ISI), Scopus, Scielo, Lilacs and System for Information on Grey Literature in Europe (SIGLE) for full articles published until September 2015. Studies analysing the association between overweight/obesity as defined by Body Mass Index (BMI) and periodontal disease in children and/or adolescents (age ≤18 years) were included. The Gwets AC1 inter-rater reliability coefficient for screening data was calculated using Agreestat 2011.1. Meta-analyses were carried out by using RStudio version 0.97.551-©2009-2012 RStudio, Inc. software. RESULTS: A total of 769 titles and abstracts were screened and 12 articles met the inclusion criteria for the systematic review while only 7 were selected for meta-analyses. The Gwets AC1 inter-rater reliability coefficient for screening data was excellent (0.98; CI 0.98-0.99). A positive association between overweight/obesity and a number of periodontal diseases was seen. For the association between prevalent periodontal disease and obesity in children, the overall fixed-effects OR and 95% CI was 1.46 (1.20-1.77) with a χ2 statistic for heterogeneity (Q) of 33.4 with 6 degrees of freedom (P < 0.005). CONCLUSION: The available evidence suggests a significantly positive association between periodontal disease and obesity in children. Paediatric dentists should be aware of periodontal alterations as a potential hazard associated with obesity.


Subject(s)
Overweight/complications , Pediatric Obesity/complications , Periodontal Diseases/complications , Adolescent , Body Mass Index , Child , Comorbidity , Humans , Overweight/epidemiology , Pediatric Obesity/epidemiology , Periodontal Diseases/epidemiology
16.
Int Endod J ; 50(3): 215-228, 2017 Mar.
Article in English | MEDLINE | ID: mdl-26863893

ABSTRACT

AIM: To compare the clinical and radiographic efficacy of Biodentine™ , ProRoot® White Mineral Trioxide Aggregate (WMTA) and Tempophore™ as pulpotomy medicaments in the treatment of carious primary molars. METHODOLOGY: A parallel-design, randomized controlled trial was developed. Patients above 3 years of age with carious primary teeth with vital pulps without spontaneous pain or history of swelling were included. Fifty-eight patients (82 teeth) with a mean age of 4.79 ± 1.23 years were included. The teeth were randomized, blinded and allocated to one of the three groups (Biodentine™ , ProRoot® WMTA or Tempophore™ ) for pulpotomy treatment. All teeth were followed up clinically and radiographically (after 6, 12 and 18 months) by two blinded calibrated investigators. A generalized estimating equation (GEE), Wald chi-square test and an intention-to-treat analysis (ITT) with 'last carried forward' approach were performed using Statistical Package for Social Sciences v 21.0 (IBM Corp., Armonk, NK, USA). RESULTS: Forty-six patients and 69 teeth were available for follow-up after 18 months. Clinical success (radiographic success in parenthesis) was 95.24% (94.4%), 100% (90.9%) and 95.65% (82.4%) in the Biodentine™ , ProRoot® WMTA and Tempophore™ groups, respectively, but the difference was not significant. Pulp canal obliteration was significantly different amongst the experimental groups as the Biodentine™ group exhibited significantly more pulp canal obliteration when compared to the ProRoot® WMTA group at 6 months (P = 0.008) and 18 months (P = 0.003). CONCLUSIONS: After 18-month follow-up, there was no significant difference between Biodentine™ in comparison with ProRoot® WMTA or Tempophore™ .


Subject(s)
Dental Caries/therapy , Pulp Capping and Pulpectomy Agents , Pulpotomy , Aluminum Compounds , Calcium Compounds , Child , Child, Preschool , Creosote , Dental Caries/diagnostic imaging , Drug Combinations , Female , Follow-Up Studies , Humans , Hydrocarbons, Iodinated , Intention to Treat Analysis , Male , Molar , Oxides , Radiography, Dental , Silicates , Thymol , Tooth, Deciduous , Treatment Outcome
17.
Dent Mater ; 32(11): 1414-1428, 2016 11.
Article in English | MEDLINE | ID: mdl-27686260

ABSTRACT

OBJECTIVE: Bioactive glasses (BAG) form, in contrast to formerly used implant materials, a stable bond with tissues, especially bone, when implanted. Nowadays BAGs are often mixed with a cement/composite that hardens in situ to broaden its applications in dentistry or orthopedics. The bioactivity and biocompatibility of possible BAG candidates for BAG-cement/composite development were evaluated. METHODS: Two fluoride containing BAGs were tested: a Na+-containing (45S5F), based on the first commercial BAG, and a Na+-free BAG (CF9), with a higher Ca2+ and PO43- content. BAGs were tested on their bioactivity upon immersion in SBF for 7days by evaluating the surface changes by FT-IR, SEM, EDS and PO43- and Ca2+ uptake and/or release from SBF. Moreover, the biocompatibility of the BAGs was investigated with a direct contact cell viability study with HFF cells and a cell adhesion study with MG-63 cells. RESULTS: The Na+-free BAG, CF9, showed the highest potential to bioactivate cements because of its high Ca2+-release and apatite (Ap) formation, as evidenced by SEM pictures and corresponding EDX patterns. FT-IR confirmed the formation of an Ap layer. Moreover CF9 had a higher biocompatibility than 45S5F. SIGNIFICANCE: For the bioactivation of GICs/composites in order to enhance bonding and remineralization of surrounding tissues, fluoride containing BAG may have advantages over other BAGs as a more stable fluorapatite can be formed. CF9 may be an excellent candidate therefore.


Subject(s)
Fluorides , Glass Ionomer Cements , Materials Testing , Bone Cements , Dental Implants , Fibroblasts , Humans , Spectroscopy, Fourier Transform Infrared
18.
Eur J Paediatr Dent ; 17(1): 24-8, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26949235

ABSTRACT

BACKGROUND: Pulp necrosis is the second most common complication after traumatic dental injuries and occurs mostly within the first 6-24 months of follow-up period, depending on the type of dental trauma. CASE REPORT: Three cases with endodontic treatment scenarios of trauma-induced necrosis in immature permanent anterior teeth. All cases were treated by full canal obturation with Biodentine (Septodont, Saint Maur des Fosses, France) and documented for a follow-up period of 24 months. CONCLUSION: Copious irrigation of the root canal, minimal mechanical preparation, use of calcium hydroxide for a short period of time and complete obturation of these immature teeth with a bioactive cement with superior mechanical properties such as Biodentine were the prominent reasons attributed to the success of these three cases.


Subject(s)
Apexification/methods , Calcium Compounds/therapeutic use , Dental Pulp Necrosis/therapy , Incisor/injuries , Pulp Capping and Pulpectomy Agents/therapeutic use , Silicates/therapeutic use , Tooth Apex/drug effects , Calcium Hydroxide/therapeutic use , Child , Dental Fistula/therapy , Follow-Up Studies , Humans , Male , Odontogenesis/drug effects , Root Canal Obturation/methods , Therapeutic Irrigation/methods , Tooth Avulsion/therapy , Treatment Outcome
19.
Annu Int Conf IEEE Eng Med Biol Soc ; 2016: 3048-3051, 2016 Aug.
Article in English | MEDLINE | ID: mdl-28268954

ABSTRACT

Physical-layer characterization is important for design of in-to-out body communication for wireless body area networks (WBANs). This paper numerically investigates the path loss of an in-to-out body radio frequency (RF) wireless link between an endoscopy capsule and a receiver outside the body using a 3D electromagnetic solver. A spiral antenna in the endoscopy capsule is tuned to operate in the Medical Implant Communication Service (MICS) band at 402 MHz, accounting for the properties of the human body. The influence of misalignment, rotation of the capsule, and human body model are investigated. Semi-empirical path loss models for various homogeneous tissues and 3D realistic human body models are provided for manufacturers to evaluate the performance of in-to-out-body WBAN systems.


Subject(s)
Capsule Endoscopy/instrumentation , Radio Waves , Wireless Technology , Adult , Child , Humans , Male , Models, Anatomic
20.
Eur Arch Paediatr Dent ; 16(6): 491-6, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26026789

ABSTRACT

BACKGROUND: Apexogenesis after traumatic exposure in vital young permanent teeth can be accomplished by implementing the appropriate vital pulp therapy such as pulp capping (direct or indirect) or pulpotomy (partial or complete) depending on the time between the trauma and treatment of the patient, degree of root development, and size of the pulp exposure. CASE REPORT: Two children with respectively 2 and 1 complicated enamel dentine fractures in immature permanent incisors were treated with new tricalcium silicate cement (Biodentine™). The treatment plan in these cases was to maintain pulp vitality aiming for apexogenesis which allows continued root development along the entire root length. Endodontic management included partial pulpotomy or pulpotomy using Biodentine™. Clinical and radiographical evaluation (up to 48 months) showed continual apexogenesis with no periodontal or periapical pathology. The appropriate restorations were functionally acceptable and aesthetically satisfying. The three traumatised teeth showed complete success both clinically (vitality and aesthetic outcome) as well as radiographically (apexogenesis and absence of pathological findings) after up to 48 months follow-up. CONCLUSION: Biodentine™ is a suitable alternative to MTA for vital pulpotomy in traumatised permanent incisors. It is also beneficial as a temporary filling without any risk of discolouration.


Subject(s)
Calcium Compounds/therapeutic use , Incisor/injuries , Pulp Capping and Pulpectomy Agents/therapeutic use , Pulpotomy/methods , Silicates/therapeutic use , Tooth Fractures/therapy , Apexification/methods , Child , Composite Resins/chemistry , Dental Enamel/injuries , Dental Materials/chemistry , Dental Pulp/injuries , Dental Pulp/physiology , Dental Pulp Exposure/therapy , Dental Restoration, Permanent/methods , Dentin/injuries , Female , Follow-Up Studies , Humans , Male , Tooth Root/growth & development , Treatment Outcome
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