Displaying publications 1 - 20 of 33 in total

  1. Hussein TA, Bakar WZ, Ghani ZA, Mohamad D
    J Conserv Dent, 2014 Nov;17(6):531-5.
    PMID: 25506139 DOI: 10.4103/0972-0707.144585
    To investigate the effect of acidic solution on surface roughness and microleakage of tooth-colored restorative materials.
  2. de Moraes Porto IC, Honório NC, Amorim DA, de Melo Franco AV, Penteado LA, Parolia A
    J Conserv Dent, 2014 Jan;17(1):65-9.
    PMID: 24554865 DOI: 10.4103/0972-0707.124151
    The radiopacity of contemporary adhesive systems has been mentioned as the indication for replacement of restorations due to misinterpretation of radiographic images.
  3. Zuryati AG, Qian OQ, Dasmawati M
    J Conserv Dent, 2013 Jul;16(4):356-61.
    PMID: 23956541 DOI: 10.4103/0972-0707.114362
    Home bleaching agents may not be safe for composite resins. The purpose of this study was to evaluate the effects of 10 and 20% Opalescence(®) PF home bleaching agents on the surface roughness and hardness of universal nanocomposite (Filtek Z350), anterior nanocomposite (KeLFiL), and nanohybrid composite (TPH 3).
  4. Mahshim N, Reza F, Omar NS
    J Conserv Dent, 2013 Jul;16(4):331-5.
    PMID: 23956536 DOI: 10.4103/0972-0707.114364
    To evaluate physical properties and cytotoxicity of pure gypsum-based (pure-GYP) and experimental gypsum-based biomaterials mixed with polyacrylic acid (Gyp-PA). The results were compared with calcium hydroxide (CH) and glass ionomer cement (GIC) for application as base/liner materials.
  5. Reza F, Lim SP
    J Conserv Dent, 2012 Apr;15(2):123-6.
    PMID: 22557808 DOI: 10.4103/0972-0707.94576
    To compare push-out bond strength between self-cured and dual-cured resin cement using a titanium post.
  6. Ahmed HM, Al Rayes MH, Saini D
    J Conserv Dent, 2012 Jan;15(1):77-9.
    PMID: 22368341 DOI: 10.4103/0972-0707.92612
    Crown fractures are common detrimental consequences of dental traumatic injuries. Early management of such cases is mandatory in order to prevent subsequent pathological changes that could further complicate the treatment. Pulp necrosis, chronic and cystic apical periodontitis can be the fate if these teeth are left untreated. Despite these serious complications, root canal treatment followed by apical surgery is considered a valid treatment option when such cases become complicated with large periapical lesions. However, whether a retrograde filling is essential to be placed or not is still a matter of debate. This case report discusses the orthograde endodontic management, the surgical approach and the clinical outcomes of longstanding crown fractured teeth with large cyst-like periapical lesions with and without retrograde filling.
  7. Said HM, Bakar WZ, Farea M, Husein A
    J Conserv Dent, 2012 Jul;15(3):257-60.
    PMID: 22876014 DOI: 10.4103/0972-0707.97952
    The aim of this in vitro study was to evaluate the sealing ability of an endodontic sealer following different techniques of its placement.
  8. Ahmed HM, Omar NS, Luddin N, Saini R, Saini D
    J Conserv Dent, 2011 Oct;14(4):406-8.
    PMID: 22144813 DOI: 10.4103/0972-0707.87212
    This study aims to evaluate the cytotoxicity of a new fast set highly viscous conventional glass ionomer cement (GIC) with L929 fibroblasts.
  9. Abd Wahab MH, Bakar WZ, Husein A
    J Conserv Dent, 2011 Oct;14(4):387-90.
    PMID: 22144809 DOI: 10.4103/0972-0707.87207
    Porcelain from prosthesis such as crown or bridge can be fractured if exposed to trauma; and, can be repaired at chairside using composite resin.
  10. Luddin N, Ahmed HM
    J Conserv Dent, 2013 Jan;16(1):9-16.
    PMID: 23349569 DOI: 10.4103/0972-0707.105291
    Complete debridement and disinfection of the root canal system are fundamental requirements for successful endodontic treatment. Despite the morphological challenges of the internal root anatomy, root canal irrigants play an important role in the optimization of the root canal preparation, which is essentially a chemo-mechanical procedure. Enterococcus faecalis is one of the most resistant microorganisms that dominants the microbial ecosystem of persistent periradicular lesions in retreatment cases. For that reason, many in vitro and in vivo studies evaluated and compared the antibacterial activity of sodium hypochlorite and chlorhexidine at varying concentrations using different experimental models against this microorganism. However, many controversies with regard to the ideal irrigant and concentration do in fact exist. Hence, this review aims to discuss the antibacterial activity of these two main root canal irrigants against Enterococcus faecalis using the agar diffusion and direct contact methods and the possible modulating factors responsible for inconsistent findings among different studies. In addition, the disinfection potential of both chemical agents on gutta percha and Resilon cones are also discussed. The source of this review was conducted through an electronic literature search using PubMed database from December 1997 until December 2011, which analyze the related laboratory investigations of both irrigants, published in major endodontic journals.
  11. Ab-Ghani Z, Jaafar W, Foo SF, Ariffin Z, Mohamad D
    J Conserv Dent, 2015 Sep-Oct;18(5):355-9.
    PMID: 26430296 DOI: 10.4103/0972-0707.164028
    To evaluate the shear bond strength between the dentin substrate and computer-aided design and computer-aided manufacturing feldspathic ceramic and nano resin ceramics blocks cemented with resin cement.
  12. Baranwal AK, Paul ML, Mazumdar D, Adhikari HD, Vyavahare NK, Jhajharia K
    J Conserv Dent, 2015 Sep-Oct;18(5):399-404.
    PMID: 26430305 DOI: 10.4103/0972-0707.164054
    Where nonsurgical endodontic intervention is not possible, or it will not solve the problem, surgical endodontic treatment must be considered. A major cause of surgical endodontic failures is an inadequate apical seal, so the use of the suitable substance as root-end filling material that prevents egress of potential contaminants into periapical tissue is very critical.
  13. Mohan RP, Pai AR
    J Conserv Dent, 2015 Jul-Aug;18(4):275-8.
    PMID: 26180409 DOI: 10.4103/0972-0707.159717
    The aim was to assess the influence of two irrigation regimens having ethylenediaminetetraacetic acid (EDTA) and ethylenediaminetetraacetic acid with cetrimide (EDTAC) as final irrigants, respectively, on the dentine wettability for AH Plus sealer by comparing its contact angle formed to the irrigated dentine.
  14. Vankayala B, Anantula K, Saladi H, Gudugunta L, Basavarajaiah JM, Yadav SS
    J Conserv Dent, 2020 08 20;22(6):559-563.
    PMID: 33088065 DOI: 10.4103/JCD.JCD_221_19
    Aim: This study aims to evaluate the amount of apical extrusion of bacteria during root canal instrumentation using K3XF, Protaper Gold, Edge taper platinum, and Hyflex CM Rotary systems.

    Materials and Methods: Sixty freshly extracted maxillary incisors teeth collected in saline. Access cavity prepared and canals were made free of bacterial and pulp. The teeth were mounted on the bacteria collecting apparatus. Root canals were contaminated with the Fusobacterium Nucleatum (ATCC25586) and dried at 37°C for 24 h. In Group 1 (Control group): No instrumentation was done and biomechanical preparation done in all other groups with Group 2: Hand K-files, Group 3: Protaper gold, Group 4: K3XF, Group 5: Edge taper platinum, and Group 6: Hyflex CM rotary file systems. Then, the extrude was collected, and it is incubated in Mueller-Hinton agar for 24 h and the number of colony forming units were counted and statistical comparison was done using Kruskal-Wallis test and Mann-Whitney U test.

    Results: Hand K-files extruded more bacteria when compared to other four rotary systems, K3XF file system extruded least number of bacteria.

    Conclusion: All instrumentation techniques extruded intracanal bacteria apically. However, engine-driven nickel-titanium instruments extruded less bacteria than the manual technique. The K3XF rotary file system comparatively extruded less bacteria than other rotary file systems.

  15. Ooi HY, Tee WY, Davamani F, Nagendrababu V
    J Conserv Dent, 2019 8 2;22(3):241-244.
    PMID: 31367106 DOI: 10.4103/JCD.JCD_521_18
    Introduction: The aim of this study is to compare the antimicrobial activity of pediocin with chlorhexidine (CHX) and calcium hydroxide (Ca(OH)2) against Enterococcus faecalis and Staphylococcus epidermidis biofilms.

    Materials and Methods: The prepared root canals of 80 teeth were contaminated with E. faecalis (n = 40) and S. epidermidis (n = 40) for 21 days to create biofilms. The samples in each group were allocated randomly into the following four subgroups (n = 10) according to the decontamination protocol: Group 1: 1% Pediocin, Group 2: 2% CHX, Group 3: Ca(OH)2, and Group 4: saline (negative control). At 5 days, the antimicrobial efficacy of the medicaments against E. faecalis and S. epidermidis was assessed by collecting dentin shavings from the canal walls created using Gates Glidden drill sizes 4 and 5, corresponding to a depth into the root canal walls of 200 μm and 400 μm, respectively. The total number of colony-forming units (CFUs) was counted. The Wilcoxon signed-rank test was used to compare the difference in CFUs between the two depths (P > 0.05).

    Results: There was no bacterial growth in samples treated with pediocin, CHX, or Ca(OH)2 at either depth.

    Conclusion: In this laboratory experimental model, pediocin exhibited the same antimicrobial properties against E. faecalis and S. epidermidis as CHX and Ca(OH)2.

  16. Ismail IH, Al-Bayaty FH, Yusof EM, Gulam Khan HBS, Hamka FA, Azmi NA
    J Conserv Dent, 2021 02 10;23(5):489-496.
    PMID: 33911359 DOI: 10.4103/JCD.JCD_528_20
    Introduction: Enterococcus faecalis can be found in failed endodontic treatment (FET) even after performing primary endodontic treatment (PET). Calcium hydroxide (Ca(OH)2) cannot fully eliminate this microorganism during PET. Brazilian green propolis (bee glue) was found to be more effective against E. faecalis when compared to Ca(OH)2. A much less studied Malaysian geopropolis (MP) as well as Aloe vera (AV) is antibacterial but is unknown against E. faecalis.

    Objective: The objective of this study is to determine the antimicrobial effects of MP, AV, and MP + AV in comparison with Ca(OH)2 against E. faecalis, as an intracanal medicament.

    Materials and Methods: Antimicrobial activity of MP, AV, MP + AV, Ca(OH)2, and dimethyl sulfoxide was tested against E. faecalis using antimicrobial sensitivity testing, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC). The results were analyzed by Kruskal-Wallis test with Mann-Whitney post hoc test and repeated measures analysis of variance with Bonferroni post hoc test (P < 0.05).

    Results: For agar well-diffusion method, MP + AV gave maximum inhibition zone diameter (mean: 8.11 ± 0.015 mm), MP (mean: 6.21 ± 0.046 mm, Ca(OH)2 (mean: 5.5 ± 0.006), and AV (mean: 5.05 ± 0.012) with P < 0.05. MIC for MP + AV was 2 mg/ml, MP at 8 mg/ml, Ca(OH)2 at 8 mg/ml, and AV at 16 mg/ml. The MBC for MP + AV is at 4 mg/ml, MP at 16 mg/ml, Ca(OH)2 at 16 mg/ml, and AV at 32 mg/ml.

    Conclusion: The combination of MP and AV consistently showed better antimicrobial activity compared to MP and AV alone against E. faecalis. The findings suggest that MP and AV used in combination may be an ideal intracanal medicament in FET and PET.

  17. Karobari MI, Khijmatgar S, Noorani TY, Assiry A, Alharbi T
    J Conserv Dent, 2021 02 10;23(5):518-521.
    PMID: 33911363 DOI: 10.4103/JCD.JCD_220_19
    Objective: The aim of this study is to determine the role of clinical audit in improving endodontic treatment outcomes.

    Materials and Methods: An audit at the department of endodontics at dental specialty centre kingdom of Saudi Arabia was carried out. The audit was conducted by developing endodontics treatment and success predictors based on evidence, that can be measured for endodontic care. A total of 12 months' data was examined from the previous dental records. Ten clinical cards were which included root canal treatment were selected. The audit was carried out for a minimum of 50 teeth and a maximum of 200 teeth. The radiographs of record cards were studied and a single dentist completed the audit tool.

    Results: The vitality test was performed in 1.98% cases, intra-canal medicament was used and named in 3.96% cases, 3.96% the teeth were extracted due to endodontic failure. Further, in 6.93% of the cases that were identified had certain spaces but overall root canal filling was evaluated as satisfactory.

    Conclusion: The vitality test, type of intracanal medicament, and assessment of root canal filling were not done, but there was an overall performance of predictors for endodontic treatment.

  18. Yusof EM, Abdullah SA, Mohamed NH
    J Conserv Dent, 2021 02 10;23(5):473-478.
    PMID: 33911356 DOI: 10.4103/JCD.JCD_509_20
    Objective: The objective of this study was to compare the effects of light and laser activation of in-office tooth bleaching systems on enamel microhardness and surface roughness.

    Materials and Methods: Twenty-five enamel slabs were divided into three treatment groups: light-activated bleaching, laser-activated bleaching, and control. The baseline data were recorded for enamel microhardness (Vickers microhardness [VMH]) and surface roughness (Roughness average, Ra). The specimens were cured for 10 min upon hydrogen peroxide application for the light-activated bleaching group and activated with a laser source, 8 cycles, 10 s per cycle for the laser-activated group. The changes in VMH and Ra at days 1, 7, and 28 were evaluated. Kruskal-Wallis, Friedman, Wilcoxon, and Mann-Whitney tests were used to analyze both VMH and Ra between the treatment groups at different time intervals.

    Results: There were a significant reduction in VMH values and significant differences between days 1, 7, and 28 against the baseline in the light-activated bleaching group (P = 0.001). The Ra values revealed significant differences in both light- (P = 0.001) and laser-activated (P = 0.033) groups.

    Conclusion: Light activation of a bleaching agent caused a reduction in enamel microhardness and an increase in surface roughness when compared to laser activation.

  19. Ang Y, Tew IM
    J Conserv Dent, 2021 02 11;23(6):644-647.
    PMID: 34083924 DOI: 10.4103/JCD.JCD_533_20
    Restoring extensively damaged endodontically treated posterior teeth is always a challenge in dentistry. The use of endocrowns has gained popularity in restoring severely damaged endodontically treated teeth (ETT) in recent years. In this clinical report, a structurally compromised mandibular second molar with symptomatic irreversible pulpitis and normal apical tissue was endodontically treated. Surgical crown lengthening was attempted thereafter to increase the crown height. However, marginal periodontal tissue re-growth occurred after surgical crown lengthening. The tooth was subsequently restored with endocrown which was fabricated using computer-aided design and computer-aided manufacturing-based hybrid-ceramic. In conclusion, endocrown can be a viable restorative modality for ETT with compromised clinical crown height.
  20. Siang Lin GS, Singbal KP, Abdul Ghani NRN
    J Conserv Dent, 2021 07 05;24(1):67-71.
    PMID: 34475683 DOI: 10.4103/JCD.JCD_616_20
    Aim: The aim is to compare the shaping ability, canal straightening, and the preparation time of five different nickel-titanium rotary files in simulated J-shaped canals.

    Materials and Methods: Ninety J-shaped canals in resin blocks were filled with 2% Methylene Blue solution and pre-instrumentation images were taken using a Leica microscope at a ×10. They were prepared until size 25 taper 0.04 using (n = 18 per group): T-Flex, HyFlex CM, Vortex Blue, S5, and iRace. After instrumentation, images were captured again, and composite images were made using Adobe Photoshop imaging software. The differences in canal width and canal curvature at each respective landmark were measured and compared. The preparation time and canal abbreviations were also recorded. Statistical analyses were performed using one-way ANOVA and post hoc Tukey HSD tests. The level of statistical significance was set to P = 0.05.

    Results: HyFlex CM demonstrated the least difference in canal width after instrumentation, but no significant difference (P > 0.05) as compared to T-Flex and Vortex Blue. The mean canal straightening ranged between 0.91° and 7.65°. T-Flex created the least canal straightening after instrumentation which was significantly less (P < 0.05) than S5, but there was no significant difference (P > 0.05) when compared to HyFlex CM. Instrumentation with the S5 file was significantly faster (P < 0.05), whereas HyFlex CM was the slowest.

    Conclusion: T-Flex, HyFlex CM, and Vortex Blue demonstrated better shaping ability, whilst T-Flex and HyFlex CM maintained the original canal curvatures well. S5 tended to straighten the canals and caused the greatest canal transportation, but it required the least amount of time to shape the canal.

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