scholarly journals The effect of polymer burs on microbiological reduction of carious dentin in deciduous teeth: a systematic review

2016 ◽  
Vol 4 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Daniela Silva Barroso de Oliviera ◽  
Driely Barreiros ◽  
Léa Assed Bezerra da Silva ◽  
Raquel Assed Bezerra da Silva ◽  
Paulo Nelson-Filho ◽  
...  
Keyword(s):  
Systematic Review ◽  
Streptococcus Mutans ◽  
New Technology ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Before And After ◽  
Quantitative Systematic Review ◽  
Caries Removal ◽  
Microbiological Reduction ◽  
Microbiological Aspects

Background. Polymer bur is a new technology that proposes to conserve the dentin that is capable of remineralization. Aim: To conduct a quantitative systematic review to evaluate the effect of polymer burs on the reduction of Streptococcus mutans and Lactobacillus after dentin carious excavation in deciduous teeth. Methods and Material: Two reviewers performed the database to identify the relevant clinical papers. Only papers in English that compared polymer burs with other caries removal techniques with the microbiological aspects as an outcome were included. Papers that evaluated only permanent teeth were excluded. Risk of bias was also assessed. Individual study effect sizes were calculated using Cohen’s d formula for the comparisons of microorganism reduction before and after carious excavation. Results: The search resulted in 12 non-duplicated papers. After the revision, only 2 were selected. The quantitative evaluation demonstrated that polymer bur reduces microorganism levels in carious dentin. The larger effect size observed was for Streptococcus mutans in the polymer bur technique (r=0.84; d=3.12), followed by Lactobacillus in the carbide bur technique (r=0.83; d=3.03). Conclusion: Polymer burs promoted a significant reduction of microorganism levels, mainly Streptococcus mutans in carious dentin. 

scholarly journals Hardness and modulus of elasticity of primary and permanent teeth after wear against different dental materials

2015 ◽  
Vol 09 (04) ◽  
pp. 587-593 ◽  
Author(s):  
Rodrigo Galo ◽  
Marta Maria Martins Giamatei Contente ◽  
Daniel Galafassi ◽  
Maria Cristina Borsatto
Keyword(s):  
Modulus Of Elasticity ◽  
Artificial Saliva ◽  
Dental Materials ◽  
Permanent Tooth ◽  
Composite Resins ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Fissure Sealant ◽  
Plate Design ◽  
Before And After

ABSTRACT Objectives: The purpose of this study was to determine the Young's modulus and the hardness of deciduous and permanent teeth following wear challenges using different dental materials. Materials and Methods: Wear challenges were performed against four dental materials: A resin-based fissure sealant (Fluoroshield®), a glass ionomer based fissure sealant (Vitremer®), and two microhybrid composite resins (Filtek Z250 and P90®). Using the pin-on-plate design, a deciduous or a permanent tooth was made into a pin (4 mm × 4 mm × 2 mm) working at a 3 N vertical load, 1 Hz frequency, and 900 cycles (15 min) with Fusayama artificial saliva as a lubricant. Before and after the tribological tests, the hardness and elasticity modulus of the tooth samples were measured by creating a nanoindentation at load forces up to 50 mN and 150 mN. All of the results were statistically analyzed using ANOVA and post-hoc Duncan's tests (P < 0.05). Results: No difference in hardness was encountered between deciduous and permanent teeth (P < 0.05) or modulus of elasticity (P < 0.05) before or after the wear challenges for all of the dental materials tested. Conclusions: Wear challenges against the studied dental materials did not alter the properties of permanent or deciduous teeth after the application of a 3 N load.

scholarly journals Present Status of Research on the Regenerative Potential of Dental Pulp Stem Cells in Malaysia: A Systematic Review

2021 ◽  
Vol 8 (1) ◽  
pp. 304-309
Author(s):  
Nazmul Haque
Keyword(s):  
Systematic Review ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Present Status ◽  
Dental Pulp ◽  
Dental Pulp Stem Cells ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Invasive Technique ◽  
Human Exfoliated Deciduous Teeth

Stem cells from human exfoliated deciduous teeth (SHED) or dental pulp stem cells (DPSCs) from permanent teeth are considered promising sources of mesenchymal stem cells. It requires a less invasive technique to isolate stem cells from exfoliated or permanent teeth. Hence this study aimed to identify the present status of research on the regenerative potential of SHED/DPSCs in Malaysia. The results indicate that only 60 articles were published in regenerative medicine from Malaysia till 5th July 2019. Only 16 tertiary institutes and four industries/clinics were involved in these studies. A poor pattern of collaboration has also been identified. Outcomes of this study have emphasized the conduction of more research on the regenerative potential of SHED/DPSCs, and active collaboration among the tertiary institutes and industries for successful translation of these cells from bench side to bedside.

scholarly journals ICDAS and dmft/DMFT. Sensitivity and specificity, the importance of the index used: a systematic review

2020 ◽  
Vol 11 (2) ◽  
pp. 176
Author(s):  
Marcial Andrés Guiñez Coelho
Keyword(s):  
Systematic Review ◽  
Chronic Disease ◽  
Sensitivity And Specificity ◽  
Comparative Studies ◽  
Assessment System ◽  
Caries Detection ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Untreated Caries ◽  
Dmft Index

INTRODUCTION: Untreated dental caries is the most prevalent chronic disease in adults and untreated caries in deciduous teeth is the tenth most frequent chronic disease. Most of the studies do not present a representative population and there are no comparative studies between Decay - Missing - Filled in permanent teeth (dmft/DMFT) and International Caries Detection and Assessment System (ICDAS). We will seek to evaluate if there are differences in sensitivity and specificity in the diagnosis of caries using the ICDAS and dmft/DMFT index. OBJECTIVES: The objective of the investigation is to evaluate if there are differences in the sensitivity and specificity in the detection of caries using the ICDAS and dmft/DMFT indexes. METHODS AND MATERIALS: A qualitative systematic review was performed, searching the dmft/DMFT caries index and ICDAS in the Medline, ClinicalKey and SciELO databases, finding 3,581 of which 21 were read in full and 14 met the inclusion and exclusion criteria. RESULTS: The sensitivity and specificity are higher with ICDAS than with the dmft/DMFT index and provides up to 43% more information when detecting noncavitated lesions, but requires more time and resources due to the use of light, compressed air and pre-examination prophylaxis. Previous training, knowledge and experience in ICDAS are fundamental for the best result, studies showed that the more experience the sensitivity and specificity increased, unlike the dmft/DMFT index, although ICDAS was easy to understand by inexperienced professionals. CONCLUSION: More comparative studies between both indexes should be carried out and include ICDAS in children due to their ability to detect non-cavitated lesions which are the most prevalent in temporary teeth.

Clinical and Microbiological Evaluation of the Carious Dentin Before and After Application of Papacarie Gel

2013 ◽  
Vol 38 (2) ◽  
pp. 133-138 ◽  
Author(s):  
S Gupta ◽  
C Singh ◽  
Y Ramakrishna ◽  
K Chaudhry ◽  
AK Munshi
Keyword(s):  
Primary Teeth ◽  
Patient Comfort ◽  
Permanent Teeth ◽  
Agar Diffusion ◽  
Before And After ◽  
Caries Removal ◽  
Agar Diffusion Assay ◽  
Caries Excavation ◽  
Diffusion Assay

Objective: To evaluate clinically and microbiologically the efficacy of Papacarie® in the removal of carious dentin in both permanent and primary teeth. Study design: Thirty permanent and primary molars with dentinal carious lesions were excavated and subjected to clinical and microbiological assessment before and after application of Papacarie®. The gel was further tested for in vitro antimicrobial efficacy against standard cariogenic micro-organisms using agar diffusion assay. Results: Papacarie® was able to differentiate between infected and affected dentin clinically along with high patient comfort during caries excavation. The mean time taken for caries removal and restoration was observed to be 4.17 ± 0.40 min. and 8.57 ± 0.45 min. for permanent teeth and 4.21 ± 0.36 min. and 9.24 ± 0.58 min. for primary teeth. There was a significant reduction in the total viable colony forming units from the dentin samples before and after application of Papacarie®. It was also observed that Papacarie® had no inhibitory effect on standard cariogenic microorganisms in the agar diffusion assay. Conclusions: Papacarie® is an effective caries removal method clinically in both permanent and primary teeth. The number of viable microorganisms after complete caries excavation using Papacarie® still appears to be high and this bacterial count should be tackled by a suitable restorative material with potent antimicrobial activity.

scholarly journals Genotypic Diversity and Virulence Traits ofStreptococcus mutansIsolated from Carious Dentin after Partial Caries Removal and Sealing

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Nailê Damé-Teixeira ◽  
Rodrigo Alex Arthur ◽  
Clarissa Cavalcanti Fatturi Parolo ◽  
Marisa Maltz
Keyword(s):  
Streptococcus Mutans ◽  
Genotypic Diversity ◽  
Morphological Type ◽  
Wilcoxon Test ◽  
Arbitrary Primer ◽  
Dentin Caries ◽  
Virulence Traits ◽  
Before And After ◽  
Caries Removal ◽  
Partial Caries Removal

The aim of this study was to compare the genotypic diversity and virulence traits ofStreptococcus mutansisolated from carious dentin before and after partial dentin caries removal (PDR) and sealing. Carious dentin samples were obtained three months before and after the PDR and cavity sealing. Up to seven isolates of each morphological type ofS. mutanswere selected and strain identity was confirmed using gtfB primer. Genotyping was performed by arbitrary primer-PCR (AP-PCR). Acidogenesis and acidurance of the genotypes were evaluated as virulence traits. A pairedt-test and a Wilcoxon test were used to compare the virulence of genotypes. A total of 48 representativeS. mutansisolates were genotyped (31 before and 17 after the sealing). At least one of the genotypes found before the sealing was also found on dentin after the sealing. The number of genotypes found before the sealing ranged from 2 to 3 and after the sealing from 1 to 2 genotypes. No difference was observed in the acidogenesis and acidurance between genotypes isolated before and after the sealing. In conclusion, genotypic diversity ofS. mutansdecreased after the PDR and sealing, but the virulence traits ofS. mutansremained unchangeable.

Treating Velopharyngeal Inadequacy Using Bilateral Buccal Flap Revision Palatoplasty

2019 ◽  
Vol 4 (5) ◽  
pp. 878-892
Author(s):  
Joseph A. Napoli ◽  
Linda D. Vallino
Keyword(s):  
Systematic Review ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
A Priori ◽  
Sufficient Evidence ◽  
Obstructive Sleep ◽  
Before And After ◽  
Buccal Flap

Purpose The 2 most commonly used operations to treat velopharyngeal inadequacy (VPI) are superiorly based pharyngeal flap and sphincter pharyngoplasty, both of which may result in hyponasal speech and airway obstruction. The purpose of this article is to (a) describe the bilateral buccal flap revision palatoplasty (BBFRP) as an alternative technique to manage VPI while minimizing these risks and (b) conduct a systematic review of the evidence of BBFRP on speech and other clinical outcomes. A report comparing the speech of a child with hypernasality before and after BBFRP is presented. Method A review of databases was conducted for studies of buccal flaps to treat VPI. Using the principles of a systematic review, the articles were read, and data were abstracted for study characteristics that were developed a priori. With respect to the case report, speech and instrumental data from a child with repaired cleft lip and palate and hypernasal speech were collected and analyzed before and after surgery. Results Eight articles were included in the analysis. The results were positive, and the evidence is in favor of BBFRP in improving velopharyngeal function, while minimizing the risk of hyponasal speech and obstructive sleep apnea. Before surgery, the child's speech was characterized by moderate hypernasality, and after surgery, it was judged to be within normal limits. Conclusion Based on clinical experience and results from the systematic review, there is sufficient evidence that the buccal flap is effective in improving resonance and minimizing obstructive sleep apnea. We recommend BBFRP as another approach in selected patients to manage VPI. Supplemental Material https://doi.org/10.23641/asha.9919352

Clinical and microbiological aspects of vaginal microbiota at pregnant with threat of late miscarriages during treatment with vaginal gestagens forms

2017 ◽  
pp. 68-73
Author(s):  
I.P. Polishchuk ◽  
Keyword(s):  
Pregnant Women ◽  
Therapeutic Effect ◽  
Local Treatment ◽  
Vaginal Microbiota ◽  
Control Group ◽  
Before And After ◽  
Low Efficiency ◽  
Late Miscarriage ◽  
Microbiological Aspects ◽  
Micronized Progesterone

The objective: was to examine the effectiveness of treatment of late miscarriage threat by micronized form of progesterone for 100 mg – 3 times a day in the form of gelatin pills and vaginal tablets with lactose. Patients and methods. Under our supervision there were 70 pregnant women with normocenosis of vagina (NCV) without extragenital pathology, which were not performed systemic or local treatment with antibacterial drugs in the last 4 weeks. Among them 25 pregnant women with TLSM treated by gelatin tablets of micronized progesterone (GTP) (group 1); 25 pregnant women with TLSM, treated by vaginal micronized progesterone tablets (VPT) (2nd group) and 20 healthy women with physiological pregnancy – PV (control group). The distribution of women in the group adhered to the principles of randomization. The age of examined women ranged from 19 to 32 years, most pregnant women were aged under 30 years (89.02%). General clinical examination was carried out according to the standard scheme according to the Order MH of Ukraine № 620. Results. During the research we have determined the colpocytologcal dynamics and state of vaginal microbiota in pregnant women with threatened late miscarriage with initial vaginal normocenosis before and after treatment whit vaginal forms of progesterone. Conclusion. The received results showed low efficiency of micronized progesterone gelatin dragee at threat of the late miscarriage that at small therapeutic effect has led to the development of vaginal dysbiosis in all surveyed. In contrast, the use of micronized progesterone vaginal tablets – the maximally rapid therapeutic effect without disturbance of vaginal normocenosis. Key words: the threat of a late miscarriage, vaginal micronized forms of progesterone.

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