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JICDRO is a UGC approved journal (Journal no. 63927)
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2017| January-June | Volume 9 | Issue 1
Online since
June 30, 2017
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ORIGINAL RESEARCH — BASIC AND CLINICAL
Comparative evaluation of dentinal defects induced by hand files, hyflex, protaper next and one shape during canal preparation: A stereomicroscopic study
Ekta Garg, Shafia Sarfi, Dildeep Bali, Akhil K Garg
January-June 2017, 9(1):16-21
DOI
:10.4103/2231-0754.201735
Aim:
This study aims to evaluate and compare the incidence of dentinal defects induced by Hand Files, HyFlex CM, ProTaper Next (PTN), and One Shape during canal preparation.
Materials and Methods:
One hundred and fifty extracted mandibular premolar teeth with single root canal were selected. Specimens were then divided into five groups with thirty specimens each. Group I: Specimens were prepared with hand instruments. Group II: Specimens were prepared with HyFlex CM rotary files (Coltene) using a crown-down technique according to the manufacturer's instructions. Group III: Specimens were prepared with PTN rotary files (Dentsply) using a crown-down technique according to the manufacturer's instructions. Group IV: Specimens were prepared with One Shape Single file rotary system (MicroMega) using a crown-down technique according to the manufacturer's instructions. Group V: Specimens were used as a control and left unprepared. All roots were cut horizontally at 3, 6, and 9 mm from the apex. Sections were then viewed under stereomicroscope and dentinal defects were registered as “no defect,” “fracture,” and “other defects.”
Statistical Analysis:
Results of the study were subjected to Chi-square test.
Results:
Results were expressed as the number and percentage of defected, partially defected and roots with no defects in each groups.
Conclusion:
Hand files and One Shape file system caused less root defects compared to PTN and HyFlex file systems.
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SHORT COMMUNICATION
Clinical efficacy of probiotic mouthwash in the treatment of gingivitis patients in Himachal population
Vikas Jindal, Neha Mahajan, Amit Goel, Rupinder Kaur, Atin Mahajan, Puja Thakur Malhotra
January-June 2017, 9(1):41-44
DOI
:10.4103/2231-0754.207386
This study was conducted to analyze the changes in gingival health in patients treated with probiotic containing mouth rinse. Thirty volunteers between 20 and 35 years were randomly divided into two groups. While one group was given placebos, the other was given probiotic mouth rinse for 14 days. The volunteers were instructed to swish the mouth rinse for 60 s twice a day. Intergroup comparison of the plaque scores (baseline-14 days) showed there was statistically significant difference in the mean plaque scores between the placebos group (0.14) (
P
≤ 0.05) and the test group (0.42) (
P
≤ 0.05) and a statistically significant difference in the mean gingival scores from baseline-14 days between the placebos group (0.9) (
P
≤ 0.05) and the test group (0.38) with (
P
≤ 0.05). Despite the short period for which the probiotics mouthwash was used by the patients, substantial improvement in gingival health of patients was observed in the study.
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CLINICAL SCIENCE AND TECHNIQUES/CASE REPORT WITH DISCUSSION
Radix entomolaris: A case report with cone-beam computed tomography evaluation
Shafia Sarfi, Dildeep Bali
January-June 2017, 9(1):28-30
DOI
:10.4103/2231-0754.201733
The purpose of this article is to draw the correlation between the morphology of the right and left radix entomoralis (RE) in a bilateral case using CBCT. In this report a case involving root canal treatment of both the mandibular molars (36 & 46) is presented. A correlation between the morphology of the two is drawn using CBCT. During root canal treatment of 46 the presence of RE was identified clinically and then radiographically. Following which, 36 was treated and similar morphologic variation was seen. A CBCT was performed after obturation of both the teeth was completed in order to analyse and compare the morphologic variation and similarity. The morphology of both the radices was found to be similar. Anatomic variations can occur in any tooth, therefore careful clinical and radiographic examination is compulsory for successful outcome. This report describes the similarity of tooth root anatomy in a patient with bilateral RE and hence its clinical implication.
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ORIGINAL RESEARCH — BASIC AND CLINICAL
Comparative evaluation of sealing ability of light cure glass ionomer cement and light cure composite as coronal sealing material: An
in vitro
study
Pragya Jaiswal, Aditi Jain, Mahesh Motlani, Gunjan Agarwal, Vaibhav Sharma, Apoorva Bhatnagar
January-June 2017, 9(1):12-15
DOI
:10.4103/2231-0754.203047
Aim:
To compare and evaluate the sealing ability of light cure composite and light cure GIC as coronal sealing materials.
Materials and Methods:
30 extracted human teeth were divided into three experimental groups of 10 teeth each. The teeth in group I are obturated without coronal seal, teeth in group II are obturated with light cure GIC (3M ESPE VITREMER) as coronal seal and teeth in group III are obturated with light cure composite(3M ESPE filtek z250) as coronal seal, after removing 2mm of coronal gutta percha. These teeth (crown portion) are then suspended in methylene blue, sealed and kept for 72 hours, to observe the amount of dye penetration. After 72 hours teeth were removed, washed under running water, dried and sectioned longitudinally, separating buccal and lingual halves. The linear extent of dye penetration was measured from cavosurface margin of the access cavity to the most apical extent of dye penetration point. The length from the cavosurface margin to the apex of the tooth was also measured and percentage linear micro leakage was estimated.
Statistical Analysis:
Data was statistically analyzed using one-way ANOVA followed by Post-Hoc Multiple comparison (Bonferroni).
Results:
In the present study specimens in group I showed the maximum percentage of linear microleakage of 31.51 percent. The specimens in group II showed the minimal amount of linear micro leakage of 6.49 percent.
Conclusion:
It can be concluded coronal seal reduces the micro leakage, and light cure GIC has better coronal sealing ability.
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Predicting the dental implant stability based on the antiresonance phase of a piezo-based impedance sensor
Paramita Banerjee, Abhijit Chakraborty, Ratna Ghosh, Bhaswati Goswami
January-June 2017, 9(1):22-27
DOI
:10.4103/2231-0754.201734
Background:
The stability of dental implants (DIs) in
in vivo
tests can be determined using noninvasive resonance frequency analysis technique. A low-cost piezo-based sensor has been developed for this purpose which uses a readily available two-terminal piezo element, to which a metal substrate is adhesively glued for attaching the implant.
Aim:
The attainment of implant stability in dynamic tests using this sensor must be standardized in terms of the major antiresonance (AR) in the impedance phase responses using sensor-DI assembly. This will be used to predetermine the dimensions of the glued metal substrate in the sensor design.
Materials and Methods:
Multiple sensors with varying sensor dimensions were developed. Static and dynamic impedance studies were performed on these and corresponding sensor-implant assemblies. Static tests as well as
in vitro
tests with the sensor-implant assembly dipped in a standardized dental plaster mixture were performed in controlled laboratory conditions.
Results:
The probability of acceptance of the hypothesis has been checked using binomial distribution with a significance level of 5%. Statistically observed that for 95% of the cases where the DI becomes stable in dental plaster, both AR phase and AR frequency (ARF) return to their corresponding static values. Furthermore, for a piezo element, whose ARF is within 6–6.6 kHz, the sensor yields maximal phase when the length of the metallic strip is 2 cm.
Conclusions:
Experimental validation supports both claims. Hence, this work can be extended to
in vivo
DI stability determination and design aspects of the corresponding sensor.
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Effect of different layering techniques on microleakage of nanofilled composite in class i restorations: An
In Vitro
study
Shafia Sarfi, Dildeep Bali, Mandeep S Grewal
January-June 2017, 9(1):8-11
DOI
:10.4103/2231-0754.194289
Aim:
To compare effect of different layering techniques on microleakage of nanofilled composites in class I restorations.
Materials and Methods:
40 extracted maxillary premolar teeth were assigned to 2 different groups (Group 1 and 2) 20 teeth per group. A Class 1 cavity measuring 3mm´3mm´2mm was prepared in all the teeth. In group 1 and 2 teeth Clearfil TMSE Bond (Kurary Medical inc. Okayama, Japan) was applied. Group 1 teeth were filled with FiltekTM Z350 XT (nanocomposite) (3M ESPE, St Paul, USA) using oblique incremental technique and in Group 2 teeth were filled with FiltekTM Z350 XT (nanocomposite) (3M ESPE, St Paul, USA) using vertical incremental technique and each increment was cured for 30 seconds. Specimens were thermocycled for 1000 cycles (5/55°C,30 seconds) and immersed in 2% methylene blue dye for 24 hours. Following immersion teeth were sectioned and observed under a stereomicroscope. Results were analysed using paired “
t
” test and Mann–Whitney test.
Results and Conclusion:
The difference between the oblique group and the vertical group was found to be statistically non significant (
P
value >0.05) but mean microleakage was more in vertical group compared to oblique group.
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SHORT COMMUNICATION
Evidence-based dentistry: Future aspects
Kanika Mohindra, Ashutosh Nirola
January-June 2017, 9(1):45-49
DOI
:10.4103/2231-0754.201436
Traditionally, clinical decisions in dentistry have been based on the experience of the dentist. If the given treatment works, it was utilized again, but if the results were disappointing, the procedure was deserted. Evaluating clinical treatment in this fashion is difficult because it is hard to know which factors are important for success and which contribute to failure. This came with the concept of evidence-based approach which facilitates conclusions for clinical practice based on sound research studies.
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CLINICAL SCIENCE AND TECHNIQUES/CASE REPORT WITH DISCUSSION
Management of peri-implant soft tissue defect with connective tissue graft - A case report
Mohinder Panwar, Subrata Roy, Manab Kosala
January-June 2017, 9(1):31-34
DOI
:10.4103/2231-0754.201437
The use of dental implants to replace missing and nonrestorable teeth has increased significantly in the past two decades. The health of peri-implant tissues plays an important role in the long-term success of dental implants. Soft tissue dehiscence around dental implants has frequently been reported which may lead to poor oral hygiene, plaque accumulation, inflamed gingiva, compromised esthetics, and further progression to peri-implantitis. The coverage of exposed implants is aimed to provide adequate keratinized tissue around dental implant. Complete coverage of mucosal defect around the dental implants is still a challenging prospect. This case report describes correction of soft tissue defect and building up of keratinized tissue in relation to implant in the maxillary right first premolar region with subepithelial connective tissue graft along with coronally advanced flap.
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Platelet-rich fibrin application in immediate implant placement
Vijayalakshmi Rajaram, Ramakrishnan Theyagarajan, Jaideep Mahendra, Ambalavanan Namachivayam, Svedha Priyadharshini
January-June 2017, 9(1):35-40
DOI
:10.4103/2231-0754.201435
The dental rehabilitation of a patient following single-tooth extraction in the esthetic zone is often clinically challenging. The treatment option for this is implant-supported single crown which has the advantage that adjacent teeth do not have to be prepared, as in a fixed prosthesis. This article presents a case of immediate implant placement in relation to 22 and a guided bone regeneration approach with platelet-rich fibrin (PRF) and bone graft. After immediate implant placement, to compensate for the gap (jumping distance) between the implant surface and bone walls of the socket, we used bone grafts and PRF clot as well as PRF membrane to achieve guided bone regeneration. PRF, which is the second generation platelet concentrate, offers the surgeon an access to growth factors with a simple and available technology. These growth factors, which are autologous, nontoxic, and nonimmunogenic, enhance and accelerate the normal bone regeneration pathways. The case presented showed successful outcome with a 1 year follow-up period.
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COVER STORY
Cover story: Three-dimensional HD intraoral scanner – simplifying dentistry
Rahul Kathariya
January-June 2017, 9(1):2-3
DOI
:10.4103/jicdro.jicdro_13_17
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EDITORIAL
Innovations in dentistry
Sonali Deshmukh
January-June 2017, 9(1):1-1
DOI
:10.4103/jicdro.jicdro_12_17
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SPECIAL FEATURE
Restructuring of dental implant education in India
Abhay P Kolte
January-June 2017, 9(1):4-7
DOI
:10.4103/jicdro.jicdro_7_17
Various treatment modalities have been proposed and practiced over the years for comforting the functions of individuals with enhanced life expectancy leading to an aging population. These therapeutic modalities are directed toward providing masticatory apparatus to patients with atrophic edentulous ridges. After evolving over several years, clinicians have now been enabled to use dental implants and provide a functionally viable and esthetically pleasing masticatory apparatus to their patients. However, majority of the dentists lack the detailed knowledge, skills, and experience which are necessary and essential for a successful implant therapy. Various training programs have been conducted across the country with the motive to bridge the gap between the clinician and the therapy. However, the existing training programs and courses lack the detailed theoretical inputs and deliberations, which form the very basis for an implicative understanding of the therapeutic modality and thus do not offer desired outcomes many a times. The success of implant therapy depends not only merely in achieving osseointegration of the implant but also providing the esthetic and functional standards, which are in tune with the patient's expectation. Oral implantology cases can be briefly divided based on their complexity as either straightforward or complex placement and/or restoration of implant. To benefit the society at large, it is high time that training programs be proposed with differential skill upgradation with different avenues. The article proposes a few training avenues for the dental professionals which if taken up in the right perspective will restructure the education in oral implantology in our country. Such training avenues need to be brought under regulatory bodies such as the State Health Universities and Dental Council of India so as to achieve a desired standardization and uniformity.
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