Microbiology and management of endodontic infections in children

2004 ◽  
Vol 28 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Itzhak Brook
Keyword(s):  
Root Canal ◽  
Anaerobic Bacteria ◽  
Bacterial Invasion ◽  
Restorative Material ◽  
Root Canal Therapy ◽  
Tooth Structure ◽  
Systemic Spread ◽  
Amoxicillin Clavulanate ◽  
Endodontic Infections ◽  
Aerobic And Anaerobic

The first step in the origination of caries is the formation of a dental plaque. Dental caries can lead to destruction of enamel and dentin resulting in bacterial invasion of the pulp. Invasion of the pulp and the periapical areas can promote the development of dento-alveolar abscess and spread of the infection to other anatomical areas. Several oral acid producing aerobic and anaerobic bacteria, including Streptococcus mutans, Lactobacillus acidophilus, and Actinomyces viscosus, are capable of initiating the carious lesion. The organisms that predominate in pulpitis and dento-alveolar abscess are Prevotella, Porphyromonas, Fusobacterium, and Peptostreptococcus spp. Treatment of caries involves removal of all affected tooth structure and proper replacement with a restorative material. Once pulpitis has developed the infected tissue should be removed and root canal therapy instituted, or the tooth should be extracted. Extraction, root canal therapy and/or drainage of pus usually are indicated for an abscess. Antimicrobial therapy supplementing the dental care should be considered, especially when local or systemic spread of the infection is suspected. Penicillin or amoxicillin are generally effective against most of the aerobic and anaerobic bacteria recovered. The patient whose oral cavity may harbor penicillin-resistant organisms should be considered for treatment with drugs effective against these organisms. These agents include amoxicillin-clavulanate, clindamycin or the combination of metronidazole plus amoxicillin or a macrolide.

scholarly journals A review of microbiological root canal sampling: updating an emerging picture

2013 ◽  
Vol 9 (1) ◽  
Author(s):  
Ana Moura Teles ◽  
M. Conceição Manso ◽  
Cristina Pina ◽  
José Cabeda
Keyword(s):  
Root Canal ◽  
English Language ◽  
Anaerobic Bacteria ◽  
Sample Collection ◽  
Scientific Rigor ◽  
Root Canals ◽  
Additional Information ◽  
Endodontic Infections ◽  
Language Accessibility ◽  
Positive Results

Objectives: The significance of microorganisms in root canals with regard to the aetiology of periapical infection and the need for crucial bacteria control during treatment are undeniable. In this study, we re-port and discuss a review of the literature on Microbiological Root Canal Sampling (MRS). The procedure is analyzed in detail, discussing its powers, limitations and the influence of sample collection procedures on the incidence of true and false positive results. Data sources: MEDLINE/PUBMED, B-On and library files of Oporto University were accessed. Selection: Papers were selected using the keywords: “root ca¬nal sampling”; “apical periodontitis”; “endodontic pathogens”; “root canal infection”; “Culture”; “molecular biology”. The references were selected under inclusion criteria such as English language, accessibility, rel¬evance to the theme and scientific rigor. Conclusions: This review illustrated the absolute need to adhere to strict methodology procedures if valid samples are to be obtained. A combination of Culture and molecular identification approaches have confirmed the polymicrobial nature of endodontic infections with a pre¬dominance of anaerobic bacteria. Nucleic acid-based techniques provide significant additional information particularly regarding the not-yet-cultivable species of the microbial community, but greatly increase the budget of the procedure. Thus, assessment of the endodontic microflora, in the context of a polymicro¬bial biofilm ecosystem, and its relevance to endodontic treatments must rely in the complementariness of Culture and Metagenomics approaches as they are neither mutually exclusive nor competitive, but strongly complementary.

scholarly journals In vivo antimicrobial efficacy of 6% Morinda citrifolia, Azadirachta indica, and 3% sodium hypochlorite as root canal irrigants

2015 ◽  
Vol 09 (04) ◽  
pp. 529-534 ◽  
Author(s):  
Rajesh Podar ◽  
Gaurav P. Kulkarni ◽  
Shifali S. Dadu ◽  
Shraddha Singh ◽  
Shishir H. Singh
Keyword(s):  
Sodium Hypochlorite ◽  
Azadirachta Indica ◽  
Root Canal ◽  
Anaerobic Bacteria ◽  
Morinda Citrifolia ◽  
Antimicrobial Efficacy ◽  
Root Canal Irrigants ◽  
Aerobic And Anaerobic ◽  
Culture Sample

ABSTRACT Objective: To evaluate and compare the antimicrobial efficacy of 6% Morinda citrifolia, Azadirachta indica, and 3% sodium hypochlorite (NaOCl) as root canal irrigants. Materials and Methods: Thirty nonvital maxillary anteriors were randomly assigned to one of the three groups corresponding to the irrigant to be tested; 6% Morinda citrifolia juice (MCJ) (n = 10), A. indica (n = 10) and 3% NaOCl (n = 10). After the root canal access opening a root canal culture sample was taken with two paper points and cultured under aerobic and anaerobic conditions. Cleaning and shaping were completed with irrigation by 10 mL of respective irrigants and 5 mL of final rinse. The patients were recalled after 3 days and canals were rinsed again with 5 mL of the test irrigants. This was followed by obtaining a posttreatment root canal culture sample and culturing and analyzed by counting the colony forming units (CFUs). Results: Six percentage MCJ, A. indica, and 3% NaOCl showed a significant reduction (P < 0.05) in the mean CFU counts for aerobic and anaerobic bacteria between baseline and 3 days. Conclusion: There was no difference in the antimicrobial efficacy of 6% M. citrifolia, A. indica, and 3% NaOCl as root canal irrigants.

scholarly journals Assessment of Coronal Leakage of Temporary Restorations in Root Canal-treated Teeth: An in vitro Study

2017 ◽  
Vol 18 (2) ◽  
pp. 126-130 ◽  
Author(s):  
Ajay Nagpal ◽  
Pankaj K Srivastava ◽  
Gaurav Setya ◽  
Alankrita Chaudhary ◽  
Kuldeep Dhanker
Keyword(s):  
Root Canal ◽  
Bacterial Resistance ◽  
Ethylenediaminetetraacetic Acid ◽  
Sodium Hypochlorite Solution ◽  
Restorative Material ◽  
Root Canal Therapy ◽  
Group I ◽  
Significant Difference ◽  
Provisional Restoration

ABSTRACT Introduction Coronal leakage is one of the constant concerns in routine dental practice. It is one of the factors responsible for the failure of root canal therapy. Permanent restorations should be given as soon as possible after the completion of root canal therapy. If unavoidable, provisional restoration should be given in such a way that it maximally reduced the leakage of microorganisms and fluids from the external environment into the canal space. Hence, we evaluated the effect of saliva on the coronal leakage of temporary restorations. Materials and methods Biomechanical preparation of the root canals of 204 fresh mandibular first premolar teeth was done using endodontic files with intermittent irrigation of sodium hypochlorite solution and ethylenediaminetetraacetic acid. Alternate irrigation with normal saline was done periodically. After preparation, drying of the canals was done using paper points followed by sealing of the apical foramen. For the assessment of the microleakage, Siqueira et al apparatus and method was used. All the specimens were divided into four groups based on the provisional restorative material used. All the groups were further divided into three subgroups based on the presence and absence of intracanal medicaments. Verissimo et al's criteria were used to check the turbidity at 1-, 2-, 3-, and 4-week interval respectively. All the results were analyzed by Statistical Package for the Social Sciences (SPSS) software. Chi-square test was used to measure the level of significance, and p < 0.05 was considered to be significant. Results In group I, all the subgroups’ specimens showed significant difference at 1 week's time. Only the subgroup with no intracanal medicaments in Cavit-containing provisional restoration showed nonsignificant alterations. Statistically significant alterations were seen at 1, 2, and 3 weeks’ interval in all the subgroups except for one with intracanal medicaments. Conclusion All the temporary restorative materials were not able to prevent microleakage after 1 week's time, with worst bacterial resistance shown by Ketac Molar and ionomer restorative material. Future studies are advocated for better prognosis of root canal therapy. How to cite this article Srivastava PK, Nagpal A, Setya G, Kumar S, Chaudhary A, Dhanker K. Assessment of Coronal Leakage of Temporary Restorations in Root Canal-treated Teeth: An in vitro Study. J Contemp Dent Pract 2017;18(2):126-130.

scholarly journals A matched irrigation and obturation strategy for root canal therapy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rafaela Fernandes Zancan ◽  
Mohammed Hadis ◽  
David Burgess ◽  
Zhenyu Jason Zhang ◽  
Alessandro Di Maio ◽  
...  
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Bacterial Load ◽  
Confocal Laser ◽  
Root Canal Therapy ◽  
Tooth Structure ◽  
Gutta Percha ◽  
Inorganic Matter ◽  
Hydraulic Calcium Silicate Cement ◽  
Root Canal Sealers

AbstractIn root canal therapy, irrigating solutions are employed to eliminate the bacterial load and also prepare dentin for sealer interaction. The aim of this research was to assess how irrigating solutions employed on their own or in sequence affected the tooth structure. The best way to prepare the tooth for obturation using hydraulic calcium silicate cement (HCSC) sealers and gutta-percha, thus guiding clinicians on a matched irrigation-obturation strategy for optimized root canal treatment was investigated. The effect of irrigating solutions on dentine was investigated by assessing changes in dentin microhardness, ultrastructure and mineral content, organic/inorganic matter, surface roughness and Young’s modulus. The interaction of four root canal sealers with the dentin was analysed by assessing the changes in microhardness of the dentin after sealer placement and also the sealer to dentin interface by scanning electron and confocal laser microscopy. The irrigating solutions damaged the dentin irreversibly both when used on their own and in combination. The best sequence involved sodium hypochlorite followed by chelator and a final rinse with sodium hypochlorite and obturation using HCSC sealers that enabled the restoration of dentin properties. The HCSC sealers did not rely on chelator irrigating solutions for a good material adaptation to dentin.

scholarly journals Comparative In Vitro Activities of Amoxicillin-Clavulanate against Aerobic and Anaerobic Bacteria Isolated from Antral Puncture Specimens from Patients with Sinusitis

1999 ◽  
Vol 43 (3) ◽  
pp. 705-707 ◽  
Author(s):  
Ellie J. C. Goldstein ◽  
Diane M. Citron ◽  
C. Vreni Merriam
Keyword(s):  
Haemophilus Influenzae ◽  
Anaerobic Bacteria ◽  
Dilution Method ◽  
Agar Dilution Method ◽  
Antimicrobial Susceptibilities ◽  
Amoxicillin Clavulanate ◽  
Agar Dilution ◽  
Peptostreptococcus Magnus ◽  
Aerobic And Anaerobic

By an agar dilution method, the antimicrobial susceptibilities of antral sinus puncture isolates were studied. Pneumococci were generally susceptible to amoxicillin, azithromycin, and clarithromycin, but 17% of pneumococcal isolates were resistant to cefuroxime.Haemophilus influenzae isolates were resistant to amoxicillin and clarithromycin. β-Lactamase production occurred in 69% of Prevotella species. One-third ofPeptostreptococcus magnus isolates were resistant to azithromycin and clarithromycin. Cefuroxime had limited activity against Prevotella species and P. magnus. Levofloxacin was active against most isolates except peptostreptococci. Amoxicillin-clavulanate was active against all isolates, with the MIC at which 90% of the isolates were inhibited being ≤1 μg/ml.

scholarly journals Investigation of the Impact of Endodontic Therapy on Survival among Dialysis Patients in Taiwan: A Nationwide Population-Based Cohort Study

2021 ◽  
Vol 18 (1) ◽  
pp. 326
Author(s):  
Chih-Chien Chiu ◽  
Ya-Chieh Chang ◽  
Ren-Yeong Huang ◽  
Jenq-Shyong Chan ◽  
Chi-Hsiang Chung ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Root Canal ◽  
Dialysis Patients ◽  
Root Canal Therapy ◽  
Risk Of Death ◽  
Stage Renal Disease ◽  
End Stage

Objectives Dental problems occur widely in patients with chronic kidney disease (CKD) and may increase comorbidities. Root canal therapy (RCT) is a common procedure for advanced decayed caries with pulp inflammation and root canals. However, end-stage renal disease (ESRD) patients are considered to have a higher risk of potentially life-threatening infections after treatment and might fail to receive satisfactory dental care such as RCT. We investigated whether appropriate intervention for dental problems had a potential impact among dialysis patients. Design Men and women who began maintenance dialysis (hemodialysis or peritoneal dialysis) between January 1, 2000, and December 31, 2015, in Taiwan (total 12,454 patients) were enrolled in this study. Participants were followed up from the first reported dialysis date to the date of death or end of dialysis by December 31, 2015. Setting Data collection was conducted in Taiwan. Results A total of 2633 and 9821 patients were classified into the RCT and non-RCT groups, respectively. From the data of Taiwan’s National Health Insurance, a total of 5,092,734 teeth received RCT from 2000 to 2015. Then, a total of 12,454 patients were followed within the 16 years, and 4030 patients passed away. The results showed that members of the non-RCT group (34.93%) had a higher mortality rate than those of the RCT group (22.79%; p = 0.001). The multivariate-adjusted hazard ratio for the risk of death was 0.69 (RCT vs. non-RCT; p = 0.001). Conclusions This study suggested that patients who had received RCT had a relatively lower risk of death among dialysis patients. Infectious diseases had a significant role in mortality among dialysis patients with non-RCT. Appropriate interventions for dental problems may increase survival among dialysis patients. Abbreviations: CKD = chronic kidney disease, ESRD = end-stage renal disease, RCT = root canal therapy.

scholarly journals BiodentineTM Full Pulpotomy in Mature Permanent Teeth with Irreversible Pulpitis and Apical Periodontitis

Healthcare ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 720
Author(s):  
Xuan Vinh Tran ◽  
Lan Thi Quynh Ngo ◽  
Tchilalo Boukpessi
Keyword(s):  
Root Canal ◽  
Periodontal Ligament ◽  
Clinical Signs ◽  
Apical Periodontitis ◽  
Permanent Teeth ◽  
Definitive Treatment ◽  
Capping Agent ◽  
Root Canal Therapy ◽  
Pulp Capping ◽  
Irreversible Pulpitis

Vital pulp therapy, including direct pulp capping and partial and full pulpotomy, is primarily indicated for immature or mature permanent teeth with reversible pulpitis. Mature permanent teeth with irreversible pulpitis are frequently treated with root canal therapy. This report presents two cases of full pulpotomy using BiodentineTM in mature permanent teeth with irreversible pulpitis and acute apical periodontitis. The periapical radiograph illustrated a deep carious lesion extended to the pulp with apical radiolucency lesion or widened periodontal ligament space. Full pulpotomy with a tricalcium silicate-based cement was chosen as the definitive treatment. After decayed tissue excavation under a rubber dam, the exposed pulp tissue was amputated to the level of the canal orifice with a new sterile bur. BiodentineTM was applied as the pulp capping agent after hemostasis was obtained and for temporary restoration. The clinical signs disappeared quickly after the treatment. After one month, the coronal part of the temporary restoration was removed, and a composite resin was placed over the capping agent as a final restoration. At two-year follow-ups, the teeth were asymptomatic. Radiographs showed healing of the periapical lesion and periodontal ligament. BiodentineTM full pulpotomy of mature permanent teeth with irreversible pulpitis and apical periodontitis can be an alternative option to root canal therapy.

scholarly journals Advances in glass-ionomer cements

2006 ◽  
Vol 14 (spe) ◽  
pp. 3-9 ◽  
Author(s):  
Carel Leon Davidson
Keyword(s):  
Glass Ionomer Cement ◽  
Minimal Invasive ◽  
Composite Resins ◽  
Restorative Material ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Tooth Structure ◽  
Ionomer Cement

This article describes the properties, advances and shortcomings of glass-ionomer cement as a restorative material. The adhesion of glass-ionomer to tooth structure is less technique sensitive than composite resins and its quality increases with time. Therefore glass-ionomer might turn out to the more reliable restorative material in minimal invasive dentistry based on adhesive techniques.

Sign in / Sign up

Export Citation Format

Share Document