scholarly journals COMPARISON OF DENTINAL TUBULAR PENETRATION OF THREE BIOCERAMIC SEALERS

2020 ◽  
pp. 23-26
Author(s):  
CELINE MARISSA ◽  
MUNYATI USMAN ◽  
ENDANG SUPRASTIWI ◽  
ANITA ERDIANI ◽  
RATNA MEIDYAWATI
Keyword(s):  
Calcium Phosphate ◽  
Root Canal ◽  
Tricalcium Silicate ◽  
Filling Material ◽  
Dentinal Tubules ◽  
Penetration Distance ◽  
Phosphate Silicate ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Objective: The main objective of endodontic treatment is to remove microorganisms from the root canal space and prevents reinfection. Deep penetration of the dentinal tubule is advantageous because it increases the contact area between the root canal filling material and dentin, thereby increasing the sealing quality of the entire root canal system. Bioceramic sealers are biocompatible, nontoxic, non-shrinking, hydrophilic, and stable, do not expand during setting, and can form hydroxyapatite, which then forms chemical bonds with dentin to compare the abilities of three types of bioceramic-based sealers to penetrate the dentinal tubules.Methods: Obturation used three types of bioceramic sealers. Group 1 (calcium phosphate silicate), Group 2 (a mixture of tricalcium silicate and resin), and Group 3 (pure tricalcium silicate) were observed using a scanning electron microscope and measurement of the penetration distance with ImageJ.Results: The bioceramic sealers had statistically significant differences in penetration distance into dentinal tubules (p’s<0.001). The mean penetration value of Group 1 (calcium phosphate silicate) was 115.99 μm, Group 2 (a mixture of tricalcium silicate and resin) was 209.28 μm, and Group 3 (pure tricalcium silicate) was 84.07 μm.Conclusion: Although all three bioceramic sealers penetrated the dentinal tubules, they exhibited differences in their penetration capabilities. Group 2 had the deepest penetration, likely due to the resin content.

scholarly journals The Effect of Root Canal Irrigation with Combination of Sodium Hypo-chlorite and Chlorhexidine Gluconate on the Sealing Ability of Obturation Materials

2014 ◽  
Vol 8 (1) ◽  
pp. 184-187 ◽  
Author(s):  
Hamed Homayouni ◽  
Nima Moradi Majd ◽  
Heidar Zohrehei ◽  
Behrad Mosavari ◽  
Mamak Adel ◽  
...  
Keyword(s):  
Root Canal ◽  
Chlorhexidine Gluconate ◽  
Smear Layer ◽  
Fluid Filtration ◽  
Layer Removal ◽  
Gutta Percha ◽  
Sealing Ability ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Objectives: The aim of this study was to evaluate the effect of the precipitate that was formed by combining Sodium Hypochlorite (NaOCl) and Chlorhexidine Gluconate (CHX) on the sealing ability of root canal obturation materials. Materials and Methods: The fluid filtration method was conducted on a total of 100 roots. Samples were randomly divided into two control (n=5) and three experimental groups (n=30). The samples in group 1 were irrigated with 1.5 mL of 2.5% NaOCl, and then the smear layers of the teeth were removed by 17% EDTA, while the specimens of group 2 were irrigated by 1.5 mL of 2.5% NaOCl and 1.5 mL of 2% CHX; after the smear layer removal, a final flush with 1.5 mL of 2.5% NaOCl was performed. The samples of group 3 were irrigated the same as group 1 but after the smear layer removal canals were irrigated again with 1.5 mL of 2.5% NaOCl and then a final flush with 1.5 mL of 2% CHX was performed. Teeth were obturated with gutta-percha and AH26 sealer and after seven days, microleakage was evaluated by the fluid filtration technique. The results were analyzed by the ANOVA and Tukey's test. Results: The samples in group 3 had significantly greater microleakage compared to teeth in group 1, 2 (p<0.05), and the specimens in group 1 showed significantly less amount of microleakage than samples in group 2, 3 (p<0.05). Conclusion: The presence of the precipitate that is formed due to interaction between NaOCl and CHX has negative effect on the sealing ability of gutta-percha and AH26 sealer.

scholarly journals Effectiveness of NaOCl alone or in combination with EDTA on the diffusion of hydroxyl ions released by calcium hydroxide paste

2006 ◽  
Vol 14 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Mara Cristina Santos Felippe ◽  
Wilson Tadeu Felippe ◽  
Catherine Schmitz Espezim ◽  
Sérgio Fernando Torres de Freitas
Keyword(s):  
Calcium Hydroxide ◽  
Root Canal ◽  
Statistical Significance ◽  
Distilled Water ◽  
Mechanical Preparation ◽  
Group 3 ◽  
Group 2 ◽  
Water Canals ◽  
Group 1

AIM: To evaluate the effect of different irrigant solutions employed during removal and replacement of calcium hydroxide paste on the diffusion of hydroxyl ions through root canal dentine in vitro. METHODOLOGY: Thirty-five maxillary and mandibular human canines with straight and fully developed roots were used. After mechanical preparation up to 1mm short of tooth length, 30 canals were filled with calcium hydroxide paste and 5 canals were left empty; all teeth had their coronal accesses properly sealed. Teeth were placed in plastic containers with distilled water, and pH was read after 30 days when the paste from 20 teeth was renewed. After removal of the paste by endodontic instrumentation and irrigation with distilled water, canals were replenished with newly mixed paste in Group 1 and 2. In these groups, final irrigation was conducted with 5 mL of EDTA followed by 5 mL of NaOCl in specimens in Group 1, and 5 mL of NaOCl only in specimens in Group 2. In 10 teeth the paste was not replenished at 30 days (Group 3). All specimens were returned to the containers with fresh distilled water, and the pH was recorded after another 30 days. The differences between the first (30d) and second (60d) pH readings were calculated and submitted to analysis of variance and individual comparisons using the Scheffeé's test. RESULTS: Results of mean analysis on differences of pH readings showed that greater diffusion had occurred on specimens in Group 3. Individual comparisons using Scheffeé's test showed statistical significance between Groups 2 and 3, and equivalence between all other groups. CONCLUSION: It was concluded that the use of EDTA did not enhance diffusion of hydroxyl ions through root canal dentine.

scholarly journals Clinical Study of Sodium Hypochlorite, Polymyxin B And Limewater Effect on MMP-3,-8,-9 In Apical Periodontitis

2020 ◽  
Vol 31 (2) ◽  
pp. 116-121 ◽  
Author(s):  
Cláudio Antonio Talge Carvalho ◽  
Amjad Abu Hasna ◽  
Alessandra Sverberi Carvalho ◽  
Polyana das Graças Figueiredo Vilela ◽  
Lucas de Paula Ramos ◽  
...  
Keyword(s):  
Clinical Study ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Polymyxin B ◽  
Apical Periodontitis ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Abstract This study aimed to evaluate sodium hypochlorite (NaOCl), limewater (LW), and Polymyxin B (PMB) as irrigants over MMP-3, MMP-8 and MMP-9. Thirty-three patients with apical periodontitis of single-rooted teeth were treated according to three-experimental groups (n=11): group-1: 2.5% NaOCl was used as irrigant; group-2: 2.5% NaOCl for the first two files and LW: [0.14% Ca(OH)2] for the last two files; group-3: 2.5% NaOCl for the first two files and PMB for the last two files. The association of Ca(OH)2 and CHX was used as an intracanal medication in all groups. Four root canal samplings (S) were collected: S1) immediately after access cavity; S2) after biomechanical preparation; S3) after EDTA application; and S4) after removal of the intracanal medication. After quantification of MMP-3, MMP-8, and MMP-9, the data were analyzed by Friedman and Kruskal-Wallis tests and completed by Dunn test (5%). Regardless the used irrigant, there was no difference in reducing MMP-3 or MMP-8 (P=0,5273, P=0,7048 respectively). However, in reducing MMP-9 (P=0,0246) the NaOCl group was the most effective followed by NaOCl+LW group and NaOCl+PMB group respectively. The intracanal medication [Ca(OH)2 + CHX] with the NaOCl and NaOCl+LW was effective in reducing MMP-8 (P<0,0001, P=0,0025) and MMP-9 (P=0,0007, P=0,0047) respectively, but not for the group of NaOCl+PMB which was not effective in reducing MMP-8 or MMP-9 (P=0,1718, P=0,1953) respectively. NaOCl and NaOCl+LW were effective in reducing MMP-9 levels, and this effectivity could be improved by the use of the intracanal medication [Ca(OH)2 + CHX] in reducing MMP-8 and MMP-9 levels.

scholarly journals To Evaluate and Compare the Efficacy, Cleaning Ability of Hand and Two Rotary Systems in Root Canal Retreatment

2013 ◽  
Vol 14 (3) ◽  
pp. 440-444 ◽  
Author(s):  
Jyoti Sachdeva ◽  
Chetan R Patil ◽  
Venugopal Thangala ◽  
Pabbati Ravi Kumar ◽  
Akash Krishna
Keyword(s):  
Clinical Significance ◽  
Root Canal ◽  
Gutta Percha ◽  
Visual Scoring ◽  
Root Canal Retreatment ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Hand Instrumentation ◽  
Group 1

ABSTRACT Aim To evaluate and compare the efficacy, cleaning ability of hand and two rotary systems in root canal retreatment. Methodology Sixty extracted premolars were retreated with following systems: Group 1—ProTaper Universal retreatment files, Group 2—ProFile system, Group 3—H-file. Specimens were split longitudinally and amount of remaining gutta-percha on the canal walls was assessed using direct visual scoring with the aid of stereomicroscope. Results were statistically analyzed using ANOVA test. Results Completely clean root canal walls were not achieved with any of the techniques investigated. However, all three systems proved to be effective for gutta-percha removal. Significant difference was found between ProTaper universal retreatment file and H-file, and also between ProFile and H-file. Conclusion Under the conditions of the present study, ProTaper Universal retreatment files left significantly less guttapercha and sealer than ProFile and H-file. Clinical significance Rotary systems in combination with gutta-percha solvents can perform superiorly as compared to the time tested traditional hand instrumentation in root canal retreatment. How to cite this article Shivanand S, Patil CR, Thangala V, Kumar PR, Sachdeva J, Krishna A. To Evaluate and Compare the Efficacy, Cleaning Ability of Hand and Two Rotary Systems in Root Canal Retreatment. J Contemp Dent Pract 2013;14(3):440-444.

scholarly journals Apical Extrusion of Debris during Root Canal Preparation with ProTaper Next, WaveOne Gold and Twisted Files

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6254
Author(s):  
Wojciech Eliasz ◽  
Beata Czarnecka ◽  
Anna Surdacka
Keyword(s):  
Root Canal ◽  
Root Canal Preparation ◽  
Movement Kinematics ◽  
Liquid Component ◽  
Apical Extrusion ◽  
Working Length ◽  
Adaptive Motion ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

(1) Background: Apical extrusion of debris is an example of a complication that may arise during root canal treatment, and it has been proven to be an unavoidable occurrence during endodontic treatment by numerous authors. Even though it may not hinder the long-term outcome of treatment, it may lead directly to increased levels of postoperative pain and, therefore, lower levels of patient acceptance and satisfaction. The aim of the study was to assess the weight of apically extruded debris during root canal preparation with instruments that use different movement kinematics (rotary, reciprocating, and adaptive motion); (2) Methods: The study was performed using the Myers and Montgomery model. Sixty human premolar teeth were inserted into preweighed Eppendorf tubes and randomly classified into three groups. After manual glide-path preparation, teeth in each group were instrumented to working length set 1 mm short of the anatomical apex using the standard sequence provided by the manufacturers (for Group 1: ProTaper Next X1 & X2; for Group 2: WaveOne Gold Primary, for Group 3: Twisted Files SM1-SM3). Root canals were irrigated with 1 mL of 0.9% NaCl solution between each file insertion. The tubes with collected debris were stored in an incubator at 70 °C for 5 days in order to evaporate the liquid component. Measurement of the weight of extruded debris was performed by subtracting the preinstrumentation from the postinstrumentation weight of the tubes. The results were analyzed with Kruskal–Wallis ANOVA, with significance level set at 0.05; (3) Results: The weight of extruded debris was 0.337 mg (SD = 0.148) for Group 1, 0.305 mg (SD = 0.201) for Group 2, and 0.348 mg (SD = 0.135) for Group 3. (4) Conclusions: Engine-driven root canal preparation with the use of instruments ProTaper Next, WaveOne Gold and Twisted Files that use different movement kinematics (rotary, reciprocating, and adaptive motion) was associated with apical extrusion of debris to a similar extent.

scholarly journals Apical Extrusion of Debris and Irrigants Using Different Irrigation Needles

2016 ◽  
Vol 27 (2) ◽  
pp. 192-195 ◽  
Author(s):  
Paula Barcellos Silva ◽  
Angélica Mohnsam Krolow ◽  
Katerine Jahnecke Pilownic ◽  
Renata Picanço Casarin ◽  
Regina Karla Pontes Lima ◽  
...  
Keyword(s):  
Root Canal ◽  
Bonferroni Correction ◽  
Root Canals ◽  
Needle Type ◽  
Apical Extrusion ◽  
Group 3 ◽  
Group 2 ◽  
Root Canal Instrumentation ◽  
Final Instrument ◽  
Group 1

Abstract This study evaluated the influence of irrigation tip, root canal curvature and final apical diameter on periapical debris and irrigant extrusion during root canal instrumentation. After being classified as mildly or moderately curved, the mesiobuccal root canals of 90 human molars were instrumented. The teeth were allocated into three groups according to the used needle type: a flat open-end needle (Group 1), a side-vented needle (Group 2) or a double side-vented needle (Group 3). The amount of extruded material after instrumentation was calculated for each group. The differences in irrigant and debris extrusion between the experimental groups were analyzed with the Mann-Whitney U test. Irrigation tips and final instrument diameter differences were analyzed with the Kruskal-Wallis test. Multiple groups were compared using the Mann-Whitney U-test with a Bonferroni correction at α=0.05. The amount of extruded material from the double side-vented needle was significantly less than the open-ended flat needle (p=0.008), but there was no difference compared to the side-vented needle (p=0.929). The results showed no effect of root curvature and final apical diameter on the amount of irrigant and debris extrusion (p>0.05). The double side-vented needles generated the least material extrusion to the periapical tissues. Irrigation needle type had the greatest influence on periapical irrigant and debris extrusion and the double side-vented needles may be safely used during endodontic therapy.

scholarly journals Influence of cervical preflaring on apical file size determination in maxillary lateral incisors

2007 ◽  
Vol 18 (2) ◽  
pp. 102-106 ◽  
Author(s):  
Guilherme Siqueira Ibelli ◽  
Juliana Machado Barroso ◽  
Alexandre Capelli ◽  
Júlio César Emboava Spanó ◽  
Jesus Djalma Pécora
Keyword(s):  
Root Canal ◽  
Apical Region ◽  
File Size ◽  
Group 4 ◽  
Major Discrepancy ◽  
Group 3 ◽  
Group 2 ◽  
Passive Movements ◽  
Group 1

The purpose of this study was to investigate the influence of cervical preflaring on determination of the initial apical file in maxillary lateral incisors. Forty human lateral incisors with complete root formation were used. After standard access cavities, a size 06 K-file was inserted into each canal until the apical foramen was reached. The WL (WL) was set 1 mm short of the apical foramen. Four groups (n=10) were formed at random, according to the type of cervical preflaring performed. Group 1 received the initial apical instrument without previous preflaring of the cervical and middle root canal thirds. Group 2 had the cervical and middle root canal thirds enlarged with nickel-titanium Orifice Opener instruments. Group 3 had the cervical and middle root canal thirds enlarged with Gates-Glidden drills. Titanium-nitrite treated, stainless steel LA Axxess burs were used for preflaring the cervical and middle root canal thirds of group 4. Each canal was sized using manual K-files, starting with size 08 files with passive movements until the WL was reached. File sizes were increased until a binding sensation was felt at the WL, and the instrument size was recorded for each tooth. The apical region was then observed under a stereoscopic magnifier, images were recorded digitally and the differences between root canal and maximum file diameters were recorded (in mm) for each sample. Significant differences were found between the groups regarding the anatomical diameter at the WL and the first file to bind the canal (p = 0.01). The major discrepancy was found when no preflaring was performed (0.1882 mm average). Canals preflared with Orifice Opener instruments (0.0485 mm average) and Gates-Glidden drills (0.1074 mm average) also showed great discrepancy. The LA Axxess burs produced the smallest differences between anatomical diameter and first file to bind (0.0119 mm average). Instrument binding technique for determining anatomical diameter at WL was not accurate. Preflaring of the cervical and middle thirds of the root canal improved anatomical diameter determination; the instrument used for preflaring played a major role on determination of the anatomical diameter at the WL. Canals preflared with LA Axxess burs created a more accurate relationship between file size and anatomical diameter.

scholarly journals Comparison of Casein Phosphopeptide with Potassium Nitrate and Sodium Monofluorophosphate Desensitizing Efficacy after In-Office Vital Bleaching—A Randomized Trial

2021 ◽  
Vol 11 (19) ◽  
pp. 9291
Author(s):  
Hafiz Muhammad Adil ◽  
Rizwan Jouhar ◽  
Muhammad Adeel Ahmed ◽  
Sakeenabi Basha ◽  
Naseer Ahmed ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Potassium Nitrate ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Desensitizing Agents ◽  
Group 3 ◽  
Group 2 ◽  
Casein Phosphopeptide ◽  
Group 1

Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), potassium nitrate, and sodium monofluorophosphate are desensitizing agents that help in reducing teeth sensitivity. However, indecisive evidence exists regarding their efficacy. Therefore, this study was conducted to compare the desensitizing efficacy of casein phosphopeptide-amorphous calcium phosphate and potassium nitrate with sodium monofluorophosphate agents after in-office vital bleaching. A randomized controlled trial was conducted on 2011 patients. The patients were randomly and equally divided into the CPP-ACP group (group 1), potassium nitrate with sodium monofluorophosphate group (group 2), and placebo gel (group 3). The upper and lower anterior teeth including the first premolar were isolated with a rubber dam, then the bleaching agents were applied on the labial surface of all the teeth, followed by light activation for 15 min. The procedure was repeated 3 times with an interval of 5 min in-between. After carrying out the bleaching procedure, patients were given a desensitizing gel or placebo gel in unmarked syringes with an instruction to apply it every 12 h for up to 3 days. The intensity of pain was recorded using a discomfort interval scale (DIS). A decrease in pain was observed 24 h after the application of the desensitizing gel in groups 1 and 2. However, in group 3, the pain persisted, with 46 (69.69%) patients having moderate pain and 14 (21.21%) developing severe pain over time. A significant difference in discomfort level with time was noted in group 1 (p = 0.015) and group 2 (p = 0.036). However, no significant difference was found in group 3 (p = 0.085). It was concluded that both desensitizing agents performed exceptionally well in reducing teeth sensitivity.

scholarly journals Efektivitas Ekstrak Daun Belimbing Wuluh (Averrhoa bilimbi Linn) sebagai Bahan Pembersih Saluran Akar Gigi (The Effectiveness of Wuluh Starfruit (Averrhoa bilimbi Linn) Leaf Extract as Root Canal Cleaner)

2016 ◽  
Vol 6 (2) ◽  
pp. 82
Author(s):  
Amalia Dara N ◽  
Ira Widjiastuti ◽  
Laksmiari Setyowati
Keyword(s):  
Root Canal ◽  
Leaf Extract ◽  
Inorganic Materials ◽  
Filling Material ◽  
Root Canal Filling ◽  
Human Teeth ◽  
Group 4 ◽  
Group 3 ◽  
Group 5 ◽  
Group 2

Background: Preparation is one of the stages in endodontic treatment that always produce debris as a result of intrumentation on root canal walls. Debris consist of organic and inorganic materials. Debris will impede the penetration of disinfection materials and reduce attachment of the root canal filling material, therefore needed root canal irrigant which can remove the debris. Wuluh starfruit leaf extract (Averrhoa bilimbi Linn) contain various active compound, such as saponin. Saponin act as “surfactants” which can remove the debris. Purpose: This study was to determine the cleaning effectiveness concentration of wuluh starfruit leaf extract which can clean the root canal walls from debris. Method: Twenty five first premolar human teeth with straight single roots were randomized into five groups in which each group consist of five teeth. Those teeth instrumented with K-file and irrigated as follows: Group 1 (control) used aquadest as irrigant, group 2 used extract 5%, group 3 used extract 10%, group 4 used extract 15%, and group 5 used extract 20%. Then, those teeth were split horizontally and longitudinally in 1/3 apex. After that, the apical third of root canal walls were observed by using scanning electron microscope (SEM). Result: There were significant differences between each group (p<0,05). Group 4 and 5 had smallest median score that was 1. Saponin in wuluh star fruit leaf extract 15% has been reach critical micelle concentration (CMC). Conclusion: Wuluh starfruit leaf extract 15% effective for cleaning root canal walls from debris.

scholarly journals Guttaflow Bioseal as Monocone Obturation Technique: A Scanning Electron Microscopy Study

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Mustaffa M ◽  
Nordin N ◽  
Embong SNH ◽  
Mohd Ibrahim MS
Keyword(s):  
Surface Area ◽  
Root Canal ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Filling Material ◽  
Gutta Percha ◽  
Significant Difference ◽  
Group 2 ◽  
Scanning Electron ◽  
Group 1

INTRODUCTION: This study compared the obturated surface area, the extrusion of root filling material beyond the apical foramen and the duration of obturation procedure in single-rooted mandibular premolar using monocone obturation technique. MATERIALS AND METHODS: The root canal of twenty single-rooted mandibular premolars were prepared, and then divided into two groups; Group 1 (GuttaFlow Bioseal (GFB) and a gutta-percha (GP) cone) and Group 2 (RoekoSeal Automix root canal sealer and a GP cone). The obturation procedure was timed and the obturation radiograph was taken after the procedure. The roots were sectioned perpendicularly and the surfaces were observed under scanning electron microscope. The images were transferred to the SketchAndCalc Area Calculator software for evaluation of the obturated surface area. RESULTS: The median score of obturated surface area in Group 1 and 2 at the apical was 86.51 and 83.00, at the middle was 90.48 and 87.35 and at the coronal was 93.00 and 83.39, respectively. The extrusion of root filling material between two groups did not show statistically significant difference. The mean duration of obturation in Group 1 and 2 was 149.50 and 137.60, respectively. CONCLUSIONS: The obturated surface area at the apical and middle root regions in Group 1 and 2 was comparable but at the coronal region, Group 1 showed 11.5% better coverage. The extrusion of root filling material in Group 1 and 2 was equivalent. Obturation procedure in Group 1 took 8.6% longer than in the Group 2.

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