Astrid Abbeele - Academia.edu (original) (raw)
Papers by Astrid Abbeele
PubMed, Oct 16, 2018
Introduction: Emergencies in pediatric dentistry are a real challenge for any healthcare professi... more Introduction: Emergencies in pediatric dentistry are a real challenge for any healthcare professional. As pediatric dentists, we are aware that this practitioner has to manage an emotional situation, often the first contact of a young child with dentistry, with sometimes complex clinical circumstances. This review of the different emergency pathologies presents the characteristics, the diagnoses and treatments, analyzed with special attention to the role of the physician and the dentist. . Material and methods: Literature analysis is conducted using the Pubmed and Google Scholar databases. Results: The pathologies are of several types: nocturnal pains, mainly due to pulpitis or a septum syndrome, and the pains caused by hot, cold or sugar, can only be managed by a dentist because they are due to caries. Only acute pain is an emergency per se. The colorations must also be managed by a dentist due to the specificity of the differential diagnosis. Special attention is paid to baby bottle polycaries, still too common. Finally, the different types of trauma, dental or periodontal are discussed with their treatment. Conclusions: The dentist, the pediatrician and the physician have their role to play both in the management of the emergency consultation and in the early detection of traumatic and non- traumatic lesions such as polycaries, in order to avoid at best both dental and psychological complications.
PubMed, Jun 1, 1992
Filtration or centrifugation are two methods frequently used to clarify human whole saliva. This ... more Filtration or centrifugation are two methods frequently used to clarify human whole saliva. This study compares both the drop in peroxidase activity following filtration (49.3% +/- 16.4%; N = 12) or centrifugation (33.6% +/- 15.9%; N = 6) and the drop in total protein concentration after filtration (33.9% +/- 13.4%) and centrifugation (23.6% +/- 8.7%). After filtration, the loss was not only due to retention of the large particle-bound fraction but also to adsorption on the filter membranes. This adsorption could be inhibited by a previous dilution of saliva in a citrate buffer, which also gave rise to active subunits with a molecular weight less than or equal to 100 kDa.
PubMed, Sep 1, 2008
The management of paediatric dentistry treatment is essentially based on behaviour management but... more The management of paediatric dentistry treatment is essentially based on behaviour management but some behaviour troubles or mental retardation may hinder this kind of treatment at the dental office without any premedication. This often leads the dentist to change his treatment planning even if this may compromise the quality of treatment . Conscious sedation techniques enable stress and pain control during the active treatment phase and represent a useful alternative to general anaesthesia which cannot be used on a routine based level. Conscious sedation by the inhalation of nitrous oxide and oxygen (MEOPA) represents a good choice, as well as by its harmlessness as by its fast reversibility. MEOPA is a precious help in our practice, provided that its administration is totally under central and all contra-indication are respected. However sedation by inhalation should in no case be systematized and its goal must remain the progressive rehabilitation of the patient in a circuit of traditional ambulatory care.
Objectives: This report deals with a comparison of decayed, missing and filled teeth prevalence (... more Objectives: This report deals with a comparison of decayed, missing and filled teeth prevalence (DMFT index) in non-diabetic and diabetic patients. Methods: The DMFT index were used in 28 male, 93 female control subjects and in 63 male , 92 female diabetic subjects. Results: Pooling together all available data, no significant difference was found between the values recorded at the mandibular and maxillar level. In 28 male and 93 female control subjects, no obvious gender-related difference was observed, whilst the slope of the regression line relating the DMFT index to age was more elevated in 92 female than in 63 male diabetic subjects. When considering separately decayed, missing and filled teeth, significant correlations with age were always observed for missing teeth. Likewise, the sole consistent difference between control and diabetic patients consisted in a higher slope of the regression lines relating the number of missing teeth to age in the latter patients. Conclusion: Tak...
PubMed, Sep 1, 1992
The susceptibility of Capnocytophaga ochracea, Eikenella corrodens, Eubacterium yurii, Fusobacter... more The susceptibility of Capnocytophaga ochracea, Eikenella corrodens, Eubacterium yurii, Fusobacterium nucleatum, Peptostreptococcus micros, Prevotella intermedia, Selenomonas sputigena, Wolinella recta to hypothiocyanite (OSCN-) produced by the lactoperoxidase system was tested. Results showed a decrease of bacterial survival rate after OSCN- exposure, with an intra- and inter-species variability from 0 to 95% for C. ochracea, 34-100% for E. corrodens, 0-83% for E. yurii, 1-15% for F. nucleatum, 8-61% for P. micros, 0-100% for P. intermedia, 0-44% for S. sputigena and 0-8% for W. recta. The survival rate did not correlate with the NADH/OSCN- oxidoreductase activity present in the lysed bacteria (r = -0.3248; N = 15; NS).
Revue Médicale de Bruxelles, Apr 1, 2021
Revue Médicale de Bruxelles, 2022
PubMed, Feb 1, 1996
This study describes an in vivo inhibition of dental plaque growth after peroxidase-generated hyp... more This study describes an in vivo inhibition of dental plaque growth after peroxidase-generated hypoiodite (OI-) mouth-washes. After giving up all other usual hygiene procedures nine healthy volunteers washed their mouth using 10 ml of the mouth-wash [H2O2 (0.005%), KI (50 mM) and lactoperoxidase (0.04%)] three times a day for 1 minute for 3 days. The initial oxidation power of this mixture represented 430 +/- 11 microM oxidised cysteine (n = 6), dropping down to 87 +/- 6 microM after the solution was spat out (n = 5). A saline solution served as a negative control, and a 0.2% chlorhexidine digluconate solution as a positive control. Proximal dental plaque between mandibular canine and lateral incisor (left and right) was collected after 3 days using standardized sterile toothpicks, then analysed for ATP and protein content. ATP concentrations dropped to 49% of the control values after OI- rinsing, and to 9% after chlorhexidine rinsing while the protein content dropped to 48% for OI- versus 31% for chlorhexidine. However, when considering the ATP content per protein micrograms, only the decrease to 6% of the initial value in the chlorhexidine testing was significant while the drop to 81% for the OI- testings was not significant. This study points out a negative effect of OI- on plaque growth in vivo.
Journal of Dental Research, 1991
European Journal of Oral Sciences, 1995
info:eu-repo/semantics/publishe
Revue Médicale de Bruxelles, Mar 1, 2021
Mediators of Inflammation, 1995
info:eu-repo/semantics/publishe
Journal of Dental Research, 1992
info:eu-repo/semantics/publishe
The oral flora is under the control of both immunity and non specific defense factors. The immuni... more The oral flora is under the control of both immunity and non specific defense factors. The immunity factors are mostly represented by polymorphonuclears immunoglobulins Non specific defense factors include lysozyme lactoferrin high molecular weight proteins, such as mucins fibronectin and beta 2 microglobulin histidine rich proteins cystatins salivary amylases salivary peroxidase system.
info:eu-repo/semantics/publishe
European Journal of Oral Sciences, 1995
info:eu-repo/semantics/publishe
EAPD 14th congress, Jun 1, 2018
info:eu-repo/semantics/publishe
PubMed, Oct 16, 2018
Introduction: Emergencies in pediatric dentistry are a real challenge for any healthcare professi... more Introduction: Emergencies in pediatric dentistry are a real challenge for any healthcare professional. As pediatric dentists, we are aware that this practitioner has to manage an emotional situation, often the first contact of a young child with dentistry, with sometimes complex clinical circumstances. This review of the different emergency pathologies presents the characteristics, the diagnoses and treatments, analyzed with special attention to the role of the physician and the dentist. . Material and methods: Literature analysis is conducted using the Pubmed and Google Scholar databases. Results: The pathologies are of several types: nocturnal pains, mainly due to pulpitis or a septum syndrome, and the pains caused by hot, cold or sugar, can only be managed by a dentist because they are due to caries. Only acute pain is an emergency per se. The colorations must also be managed by a dentist due to the specificity of the differential diagnosis. Special attention is paid to baby bottle polycaries, still too common. Finally, the different types of trauma, dental or periodontal are discussed with their treatment. Conclusions: The dentist, the pediatrician and the physician have their role to play both in the management of the emergency consultation and in the early detection of traumatic and non- traumatic lesions such as polycaries, in order to avoid at best both dental and psychological complications.
PubMed, Jun 1, 1992
Filtration or centrifugation are two methods frequently used to clarify human whole saliva. This ... more Filtration or centrifugation are two methods frequently used to clarify human whole saliva. This study compares both the drop in peroxidase activity following filtration (49.3% +/- 16.4%; N = 12) or centrifugation (33.6% +/- 15.9%; N = 6) and the drop in total protein concentration after filtration (33.9% +/- 13.4%) and centrifugation (23.6% +/- 8.7%). After filtration, the loss was not only due to retention of the large particle-bound fraction but also to adsorption on the filter membranes. This adsorption could be inhibited by a previous dilution of saliva in a citrate buffer, which also gave rise to active subunits with a molecular weight less than or equal to 100 kDa.
PubMed, Sep 1, 2008
The management of paediatric dentistry treatment is essentially based on behaviour management but... more The management of paediatric dentistry treatment is essentially based on behaviour management but some behaviour troubles or mental retardation may hinder this kind of treatment at the dental office without any premedication. This often leads the dentist to change his treatment planning even if this may compromise the quality of treatment . Conscious sedation techniques enable stress and pain control during the active treatment phase and represent a useful alternative to general anaesthesia which cannot be used on a routine based level. Conscious sedation by the inhalation of nitrous oxide and oxygen (MEOPA) represents a good choice, as well as by its harmlessness as by its fast reversibility. MEOPA is a precious help in our practice, provided that its administration is totally under central and all contra-indication are respected. However sedation by inhalation should in no case be systematized and its goal must remain the progressive rehabilitation of the patient in a circuit of traditional ambulatory care.
Objectives: This report deals with a comparison of decayed, missing and filled teeth prevalence (... more Objectives: This report deals with a comparison of decayed, missing and filled teeth prevalence (DMFT index) in non-diabetic and diabetic patients. Methods: The DMFT index were used in 28 male, 93 female control subjects and in 63 male , 92 female diabetic subjects. Results: Pooling together all available data, no significant difference was found between the values recorded at the mandibular and maxillar level. In 28 male and 93 female control subjects, no obvious gender-related difference was observed, whilst the slope of the regression line relating the DMFT index to age was more elevated in 92 female than in 63 male diabetic subjects. When considering separately decayed, missing and filled teeth, significant correlations with age were always observed for missing teeth. Likewise, the sole consistent difference between control and diabetic patients consisted in a higher slope of the regression lines relating the number of missing teeth to age in the latter patients. Conclusion: Tak...
PubMed, Sep 1, 1992
The susceptibility of Capnocytophaga ochracea, Eikenella corrodens, Eubacterium yurii, Fusobacter... more The susceptibility of Capnocytophaga ochracea, Eikenella corrodens, Eubacterium yurii, Fusobacterium nucleatum, Peptostreptococcus micros, Prevotella intermedia, Selenomonas sputigena, Wolinella recta to hypothiocyanite (OSCN-) produced by the lactoperoxidase system was tested. Results showed a decrease of bacterial survival rate after OSCN- exposure, with an intra- and inter-species variability from 0 to 95% for C. ochracea, 34-100% for E. corrodens, 0-83% for E. yurii, 1-15% for F. nucleatum, 8-61% for P. micros, 0-100% for P. intermedia, 0-44% for S. sputigena and 0-8% for W. recta. The survival rate did not correlate with the NADH/OSCN- oxidoreductase activity present in the lysed bacteria (r = -0.3248; N = 15; NS).
Revue Médicale de Bruxelles, Apr 1, 2021
Revue Médicale de Bruxelles, 2022
PubMed, Feb 1, 1996
This study describes an in vivo inhibition of dental plaque growth after peroxidase-generated hyp... more This study describes an in vivo inhibition of dental plaque growth after peroxidase-generated hypoiodite (OI-) mouth-washes. After giving up all other usual hygiene procedures nine healthy volunteers washed their mouth using 10 ml of the mouth-wash [H2O2 (0.005%), KI (50 mM) and lactoperoxidase (0.04%)] three times a day for 1 minute for 3 days. The initial oxidation power of this mixture represented 430 +/- 11 microM oxidised cysteine (n = 6), dropping down to 87 +/- 6 microM after the solution was spat out (n = 5). A saline solution served as a negative control, and a 0.2% chlorhexidine digluconate solution as a positive control. Proximal dental plaque between mandibular canine and lateral incisor (left and right) was collected after 3 days using standardized sterile toothpicks, then analysed for ATP and protein content. ATP concentrations dropped to 49% of the control values after OI- rinsing, and to 9% after chlorhexidine rinsing while the protein content dropped to 48% for OI- versus 31% for chlorhexidine. However, when considering the ATP content per protein micrograms, only the decrease to 6% of the initial value in the chlorhexidine testing was significant while the drop to 81% for the OI- testings was not significant. This study points out a negative effect of OI- on plaque growth in vivo.
Journal of Dental Research, 1991
European Journal of Oral Sciences, 1995
info:eu-repo/semantics/publishe
Revue Médicale de Bruxelles, Mar 1, 2021
Mediators of Inflammation, 1995
info:eu-repo/semantics/publishe
Journal of Dental Research, 1992
info:eu-repo/semantics/publishe
The oral flora is under the control of both immunity and non specific defense factors. The immuni... more The oral flora is under the control of both immunity and non specific defense factors. The immunity factors are mostly represented by polymorphonuclears immunoglobulins Non specific defense factors include lysozyme lactoferrin high molecular weight proteins, such as mucins fibronectin and beta 2 microglobulin histidine rich proteins cystatins salivary amylases salivary peroxidase system.
info:eu-repo/semantics/publishe
European Journal of Oral Sciences, 1995
info:eu-repo/semantics/publishe
EAPD 14th congress, Jun 1, 2018
info:eu-repo/semantics/publishe