ABSTRACT
Objective @# To explore from the perspective of microorganisms the changes in plaque microbial community of children with severe early childhood caries (S-ECC) before and 3 months after dental treatment. Meanwhile to show the effect of treatment on the maintenance of long- term caries-free state. @*Methods@# S-ECC children completed dental treatment under general anesthesia. We collected plaque from caries-free dental surfaces before treatment (caries, C) and at the postoperative follow-up review time points of 7 days (C-7D), 1 month (C-1 M), and 3 months (C-3 M). We included caries-free children (caries free, CF) as the control group to analyze the dynamic modification process of the plaque microbial community in the short-term pre- and postdental treatment.@*Results@#Species clustering analysis showed that the compositions of the microbial communities of the S-ECC and CF groups were highly similar. The α diversity index was not statistically significant (P>0.05). From the analysis of the relative abundance, Leptotrichia spp. and Aggregatibacter spp. decreased after treatment compared with before treatment (P<0.05). Streptococcus sanguinis in the C-7D group increased compared with that in the C group and gradually decreased within 3 months. Veillonella spp., Actinomyces spp., Allprevotella spp., Capnocytophaga spp., and Streptococcus mutans differed between the C and CF groups (P<0.05), Streptococcus mutans did not differ significantly between the C-7D and C-1 M groups and the CF group after treatment, while C-3 M showed an increase compared with the CF group (P<0.01). @*Conclusion@#The rapid change in the structure of the flora of children with S-ECC after treatment. The plaque microbial community structure in a caries-free state gradually starts to be established 1-3 months after treatment. There is a "core microbiota" in the oral plaque community that jointly maintains microecological stability. Veillonella spp., Allprevotella spp. and Streptococcus mutans have potential as possible microbial markers.
ABSTRACT
Los logros de los avances obtenidos en el manejo actual de la caries han dado la oportunidad a los odontólogos de detectar lesiones de caries en sus estadios incipientes. A pesar de la existencia de una gran variedad de materiales restauradores directos disponibles en el mercado actual y que pueden utilizarse para restaurar lesiones pequeñas de caries, el material que tiene más posibilidades de éxito para este tipo de lesiones es sin duda alguna el oro cohesivo, también conocido como oro directo (AU)
The goals obtained with the current management of dental caries has given the dentists the opportunity to detect incipient caries lesions in early stages. Although, the current existence of a great variety of direct restorative materials available in the market to restore small caries lesions, the material that may show better success for these type of lesions, is without any doubt: the gold foil or direct gold (AU)
Subject(s)
Humans , Dental Caries , Dental Restoration, Permanent/instrumentation , Conservative Treatment , Gold Alloys/therapeutic use , Chemical PhenomenaABSTRACT
The purpose of this study was to classify risk groups according to Caries Risk Assessment (CRA) and to investigate the effect of caries prevention program after 1 year of caries prevention intervention program in 6-year-old infants with high caries risk. The subjects were selected based on responses to CRA questionnaires. At the first visit, oral examination, Cariview, bacteria and saliva flow test were performed. The caries risk group was classified accordingly. The subjects were given fluoride application and oral health education every four months and evaluated the same as the first visit after 1 year. As a result of classifying the risk level according to CRA, more than 80% of the subjects were in the high or extreme high risk. The dft index was increased in all risk groups after the intervention. There was a significant difference between the before and after intervention (p < 0.05). The Cariview score showed a slight decrease after the intervention in the moderate and high risk groups. As a result of the evaluation of bacteria test, Streptococcus mutans were decreased to ≥10⁵ CFU/ml saliva after intervention in all groups. Lactobacilli were decreased after intervention in high risk and extreme high risk groups. As a result of saliva flow, there was significant difference between caries risk groups before and after intervention (p < 0.05). In conclusion, regular caries management has been shown to influence caries risk factors in high-caries risk children. Also, it is necessary to find out periodical dental risk management system which is suitable for domestic situation through the related studies.
Subject(s)
Child , Humans , Infant , Bacteria , Diagnosis, Oral , Education , Fluorides , Oral Health , Risk Assessment , Risk Factors , Risk Management , Saliva , Streptococcus mutansABSTRACT
Dental caries is one of the most important chronic oral diseases that seriously threaten human health. Because of the characteristics of high incidence, low rate of treatment and high rate of retreatment, conventional prevention and treatment strategies cannot effectively control the occurrence of caries. This article proposes the concept of whole life cycle management of dental caries, focusing on group management of dental caries according to different ages and physiological characteristics on one hand, and personal management of dental caries according to various risk factors and risk levels of individual patient on the other hand, to achieve the goals of controlling the multiple factors that affect the development of dental caries, restoring the oral microecological balance, and further controlling the progress of caries and reconstructing the structure and function of carious teeth.
ABSTRACT
Background: To assess the approach of GPDs in Upper Egypt regarding preventive and restorative treatments for various stages of carious lesion development. Methods: A 42-item questionnaire was constructed for obtaining the GPD’s opinions. Factor analyses (with Varimax rotation) were conducted to identify scales (clusters) of variables. Logistic regression analyses, with continuing professional development as dependent variable, were conducted to test for the effect of single and scaled factors regarding indications to perform preventive or restorative treatments Results: All 70 participants returned the questionnaire. Three scale factors, i.e., treatment strategies, were identified as: ‘operative-minded dentists’ (who make >10 amalgam and resin composite restorations per week); ‘problem solvers’ (who have >10 years of experience, see >60 patients and make >10 temporary restorations per week); and ‘thinkers’ (who spend >50 hours / year on continuing professional development but also make >10 restorations per week). Logistic regression analyses found only one statistically significant relationship (p=0.03): ‘operative-minded dentists’ indicated provision of significantly less caries-preventive measures. Most patient visits were pain-induced. Conclusion: It was concluded that most GPDs in Upper Egypt have an operative-minded treatment philosophy, and spend less time on preventive measures. Amalgam is the most common restorative material used.