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2015| September-October | Volume 12 | Issue 5
Online since
September 29, 2015
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REVIEW ARTICLES
Outcomes of vital pulp therapy in permanent teeth with different medicaments based on review of the literature
Najmeh Akhlaghi, Abbasali Khademi Khademi
September-October 2015, 12(5):406-417
DOI
:10.4103/1735-3327.166187
PMID
:26604953
Vital pulp therapy (VPT) is a biologic and conservative treatment modality to preserve the vitality and function of the coronal or remaining radicular pulp tissue in vital permanent teeth. A search was conducted via the Cochrane database, PubMed, MEDLINE, and Ovid for any articles with the criteria for "pulp-capping," or "pulp-capping materials" and "VPT outcomes" from 1978 to mid 2014. All articles were evaluated and the valid papers were selected. The outcomes of various VPT techniques, including indirect pulp treatment, direct pulp treatment, partial pulpotomy, and complete pulpotomy in vital permanent teeth were extracted. Although various studies have different research approach, most studies noted a favorable treatment outcome. Mineral trioxide aggregate (MTA) appears to be more effective than calcium hydroxide (Ca(OH)
2
) for maintaining long-term pulp vitality after indirect and direct pulp-capping. However, it seems that the success rate for partial pulpotomy and pulpotomy with Ca(OH)
2
is similar to MTA.
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ORIGINAL ARTICLES
The use of platelet-rich fibrin (PRF) and PRF-mixed particulated autogenous bone graft in the treatment of bone defects: An experimental and histomorphometrical study
Nesligül Niyaz Kökdere, Timuçin Baykul, Yavuz Findik
September-October 2015, 12(5):418-424
DOI
:10.4103/1735-3327.166188
PMID
:26604954
Background:
Various materials and techniques have been developed to facilitate bone healing process and reduce its healing period. In recent studies, it is pointed out that, platelet-rich fibrin (PRF) which is derived autogenously from the own blood of the individuals, increase regeneration and accelerate the healing of the wound, due to the consisting various growing factors. The aim of the experimental study is to evaluate the efficiency of PRF and PRF/autogenous graft combination on bone healing in different time intervals.
Materials and Methods:
A total of 24 skeletally mature New Zealand rabbits were used. Animals were divided randomly into two groups. Two bone defects with a diameter 3, 3 mm were created on the right and left tibia in all group animals. Only particulate autogeneous bone graft, only PRF, combination of PRF and autogeneous bone graft and empty bone cavity, were performed to all animals. The animals in the first experimental group were sacrificed after 30 days. The animals in the second experimental group were sacrificed after 60 days from the operation. Histomorphometrical and statistical analysis was performed. The data were analyzed using Tukey test (
P
< 0.05 for osteoblast number,
P
< 0.01 for osteoclast and new bone area values).
Results:
Histomorphometrical analyzes showed that either PRF used alone or used in conjuction with autogenous bone graft, PRF accelerated the healing of the bone defects. There were statistically significant differences in osteoblast, osteoblast and new bone area values in PRF alone and autogenous graft with PRF than the other groups.
Conclusion:
Our preliminary result demonstrated that PRF increase new bone formation and has a positive effect on early bone healing.
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REVIEW ARTICLES
The antioxidant master glutathione and periodontal health
Vivek Kumar Bains, Rhythm Bains
September-October 2015, 12(5):389-405
DOI
:10.4103/1735-3327.166169
PMID
:26604952
Glutathione, considered to be the master antioxidant (AO), is the most-important redox regulator that controls inflammatory processes, and thus damage to the periodontium. Periodontitis patients have reduced total AO capacity in whole saliva, and lower concentrations of reduced glutathione (GSH) in serum and gingival crevicular fluid, and periodontal therapy restores the redox balance. Therapeutic considerations for the adjunctive use of glutathione in management of periodontitis, in limiting the tissue damage associated with oxidative stress, and enhancing wound healing cannot be underestimated, but need to be evaluated further through multi-centered randomized controlled trials.
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CASE REPORTS
Management of external perforating root resorption by intentional replantation followed by Biodentine restoration
Preeti Jain Pruthi, Umesh Dharmani, Ruchika Roongta, Sangeeta Talwar
September-October 2015, 12(5):488-493
DOI
:10.4103/1735-3327.166235
PMID
:26604965
Resorption of tooth structures can occur as a result of physiological, pathological, and idiopathic factors. Early diagnosis and appropriate treatment can prevent its serious complications. This case report presents surgical endodontic management of a trauma-induced perforating external root resorption, which was diagnosed with the help of cone beam computed tomography. Following root canal treatment, intentional replantation of the tooth was performed so as to expose the opening of the resorption defect to allow for complete debridement and closure. Eighteen months follow-up showed arrest of root resorption, and progressive healing of the defect.
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ORIGINAL ARTICLES
Systemic effects of fluoxetine on the amount of tooth movement, root resorption, and alveolar bone remodeling during orthodontic force application in rat
Mehdi Rafiei, Soosan Sadeghian, Nakisa Torabinia, Valiollah Hajhashemi
September-October 2015, 12(5):482-487
DOI
:10.4103/1735-3327.166232
PMID
:26604964
Background:
Antidepressant drugs such as fluoxetine are of the most commonly used drugs among the public. These drugs may impact the regulation of bone cell functioning, and thus affect orthodontic tooth movement. The aim of this study was to determine the effect of fluoxetine on tooth movements during orthodontic treatment in rats.
Materials and Methods:
In this study, 30 male rats were randomly assigned into two groups and injected with fluoxetine 10 mg/kg (experimental group) and normal saline (control group) for a period of 1-month intraperitoneally 5 times/week. Then, the rats were anesthetized and a nickel-titanium closed-coil spring was placed between the left maxillary first molar and left maxillary central incisors of all samples, and then fluoxetine (experimental group) and normal saline (control group) were injected for another 3 weeks by the same method. After measuring tooth movements, rats were sacrificed, and histomorphometric analyses were conducted and the obtained data were statistically analyzed using independent
t
-test and the significance was set at 0.05.
Results:
Following the fluoxetine injection, the mean amount of tooth movements in the experimental group was reduced compared to the control group, which was not statistically significant (
P
= 0.14). There was no significant difference between the two groups regarding bone apposition rate (
P
= 0.83), external root resorption rate (
P
= 0.1), and mean number of root resorption lacunae (
P
= 0.16).
Conclusion:
Within the limitations of this study, systemic use of fluoxetine may cause insignificant reduction of tooth movement rate in rats; however, this subject needs more evaluations.
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Clinical evaluation of the effect of platelet rich plasma on the coronally advanced flap root coverage procedure
Sharashchandra Madhavarao Biradar, Ashok Satyanarayan, Arun J Kulkarni, Basavaraj Patti, Sunil K Mysore, Ambika Patil
September-October 2015, 12(5):469-475
DOI
:10.4103/1735-3327.166226
PMID
:26604962
Background:
Coronally advanced flap (CAF) has been shown to effectively treat gingival recession. Platelet rich plasma (PRP), containing autologous growth factors, has been shown to promote soft tissue healing. The aim of this clinical study was to determine whether the addition of an autologous PRP to a CAF when compared to a CAF alone would improve the clinical outcome for treatment of multiple gingival recessions.
Materials and Methods:
Thirty patients with Miller's class I and class II buccal recession defect were randomly assigned to control (CAF alone) or test (CAF with PRP) groups. Recession depth (RD), recession width (RW), probing depth (PD), clinical attachment level (CAL), width of keratinized tissue, wound healing index, percentage of root coverage was assessed. Patients were followed at 2, 4, 12 and 16 weeks post-surgery. Statistical analysis for intra and inter group comparisons was done using Wilcoxon sign rank and Wilcoxon rank sum tests respectively.
P
< 0.05 denoted statistical significance.
Results:
The differences between the test and control groups were not significant with respect to all the clinical variables. The RD at 16 weeks was significantly reduced from 2.88 ± 0.69 to 0.76 ± 0.24 mm in control group (
P
< 0.05) and from 2.95 ± 0.43 to 0.76 ± 0.35 mm in the test group (
P
< 0.05). The mean percentage of root coverage was 73.1 ± 7.3 in the control group and 75.0 ± 8.3 in test group (
P
< 0.05). The CAL gain was 3.17 ± 0.84 mm within the control group and 3.17 ± 0.79 mm within test group.
Conclusion:
Within the limitations of this study, PRP with CAF can provide an early healing of soft tissues, but does not provide clinically measurable improvement in the final therapeutics outcome in CAF.
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Three-dimensional accuracy of different impression techniques for dental implants
Mohammadreza Nakhaei, Azam S Madani, Azizollah Moraditalab, Hamidreza Rajati Haghi
September-October 2015, 12(5):431-437
DOI
:10.4103/1735-3327.166190
PMID
:26604956
Background:
Accurate impression making is an essential prerequisite for achieving a passive fit between the implant and the superstructure. The aim of this
in vitro
study was to compare the three-dimensional accuracy of open-tray and three closed-tray impression techniques.
Materials and Methods:
Three acrylic resin mandibular master models with four parallel implants were used: Biohorizons (BIO), Straumann tissue-level (STL), and Straumann bone-level (SBL). Forty-two putty/wash polyvinyl siloxane impressions of the models were made using open-tray and closed-tray techniques. Closed-tray impressions were made using snap-on (STL model), transfer coping (TC) (BIO model) and TC plus plastic cap (TC-Cap) (SBL model). The impressions were poured with type IV stone, and the positional accuracy of the implant analog heads in each dimension (x, y and z axes), and the linear displacement (ΔR) were evaluated using a coordinate measuring machine. Data were analyzed using ANOVA and
post
-
hoc
Tukey tests (α = 0.05).
Results:
The ΔR values of the snap-on technique were significantly lower than those of TC and TC-Cap techniques (
P
< 0.001). No significant differences were found between closed and open impression techniques for STL in Δx, Δy, Δz and ΔR values (
P
= 0.444,
P
= 0.181,
P
= 0.835 and
P
= 0.911, respectively).
Conclusion:
Considering the limitations of this study, the snap-on implant-level impression technique resulted in more three-dimensional accuracy than TC and TC-Cap, but it was similar to the open-tray technique.
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Viscosity of endodontic irrigants: Influence of temperature
Claudio Poggio, Matteo Ceci, Riccardo Beltrami, Marco Colombo, Alberto Dagna
September-October 2015, 12(5):425-430
DOI
:10.4103/1735-3327.166189
PMID
:26604955
Background:
The aim of this study was to assess the influence of temperature on the viscosity of different endodontic irrigants.
Materials and Methods:
The measurements of viscosity of 3% hydrogen peroxide, 0.9% sodium chloride, aqueous solution of 0.2% chlorhexidine (CHX) and 0.2% cetrimide, 5% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA) at different temperatures (22°C, 30°C, 40°C, 50°C and 60°C) were obtained using Mohr balance and Ostwald viscometer. The Shapiro-Wilk test and Mann-Whitney U-tests were used for the statistical analysis. (α = 0.05).
Results:
No significant differences were recorded at each temperature among 3% hydrogen peroxide, 0.9% sodium chloride and aqueous solution of 0.2% CHX and 0.2% cetrimide. 5% NaOCl and 17% EDTA showed the higher values. Viscosity statistically decreased with increasing temperature.
Conclusion:
Within the limitations of this study, 5% NaOCl and 17% EDTA are significantly viscous at room temperature and their viscosity reduces with elevating temperature.
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358
Correlation between cervical vertebral maturation and chronological age in a group of Iranian females
Seyed Mohammadreza Safavi, Hanie Beikaii, Raheleh Hassanizadeh, Farnaz Younessian, Alireza Akbarzadeh Baghban
September-October 2015, 12(5):443-448
DOI
:10.4103/1735-3327.166192
PMID
:26604958
Background:
Correlation between chronological age at different stages of cervical vertebral maturation (CVM) is important in clinical orthodontic practice. The objective of this study was to evaluate the correlation between CVM stage and chronological age in a group of Iranian female patients.
Materials and Methods:
This study was conducted on 196 digital lateral cephalometry of female patients with the age ranged 9-14 years. The CVM stage was determined with two calibrated examiners, using the method developed by Baccetti and its correlation with mean chronological age was assessed by the Spearman rank-order. The intra and inter-agreements were evaluated by weighted Kappa statistics in overall diagnosis of stages, in addition to determination of presence or absent of concavities at the lower border of second, third and fourth cervical vertebrae and the shapes of the third and fourth vertebrae.
P
< 0.05 was considered as significant.
Results:
The correlation coefficient between CVM stages and chronological age was relatively low (
r
= 0.62). The least amount of inter-observer agreement was determined to be at the clinical decision of the shape of the fourth vertebra.
Conclusion:
Regarding the low reported correlation, the concomitant usage of other skeletal indicators seems necessary for precise determination of physiological age of the patients.
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Therapeutic effects of
Zataria Multiflora
essential oil on recurrent oral aphthous lesion
Neda Babaee, Mahmoud Baradaran, Hossein Mohamadi, Shaghayegh Nooribayat
September-October 2015, 12(5):456-460
DOI
:10.4103/1735-3327.166218
Background:
Aphthous lesions are one of the most common diseases of the oral cavity. They can cause severe pain, and there is no definite treatment. The purpose of this study was to determine the efficacy of
Zataria multiflora
(ZM, a thyme-like plant) essential oil for the control and treatment of aphthous lesions.
Materials and Methods:
This Triple blind clinical trial study was performed on 28 patients who were divided into two groups (eight men and six women in each group) and given ZM or placebo (control). The healing time, pain intensity, and aphthous zone diameter were recorded for each patient and followed for 6-month. Data were analyzed using Mann-Whitney and Friedman tests (
P
< 0.05).
Results:
After 6-month of follow-up, 4 patients in the placebo group and 6 patients in the ZM group suffered from recurrent aphthous lesions. The average complete healing time and duration of burning sensation were significantly lower in the ZM group (
P
< 0.05). Significant difference was observed between the two groups with regard to the diameter of lesions and halo of the lesions (
P
< 0.05).
Conclusion:
Within the limitations of this study, ZM shortened the healing period compared to placebo.
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Inflammatory markers in gingival crevicular fluid of periodontitis patients with type 2 diabetes mellitus according to glycemic control: A pilot study
Priscila Larcher Longo, Hilana Paula Carilo Artese, Anna Carolina Ratto Tempestini Horliana, Giovane Hisse Gomes, Giuseppe Alexandre Romito, Sergio Atala Dib, Marcia Pinto Alves Mayer
September-October 2015, 12(5):449-455
DOI
:10.4103/1735-3327.166193
PMID
:26604959
Background:
Type 2 diabetes mellitus (T2DM) and periodontitis are inflammatory conditions with a bidirectional association. This pilot study aimed to evaluate whether T2DM and glycemic control interfere in inflammatory markers profiles in gingival crevicular fluid (GCF) in periodontitis patients.
Materials and Methods:
Fourteen diabetic periodontitis patients were enrolled in this study, seven with adequate glycemic control (glycated hemoglobin [HbA1c] <8.0%) (DMA + P) and seven with inadequate control (HbA1c ≥8.0%) (DMI + P). Seven chronic periodontitis patients without diabetes formed the control group (P). GCF was obtained from diseased sites (probing depth >6 mm) of an entirely hemiarch, pooled and cytokines levels determined using multiplex beads immunoassay. Clinical periodontal parameters were analyzed by Mann-Whitney test and levels of cytokines by Kruskal-Wallis and Dunn's multiple comparison tests with confidence level of 95% (
P
< 0.05).
Results:
Cytokines profile of GCF obtained from deep periodontal pockets presented high levels of inflammatory cytokines, and there were no statistical differences between levels of interleukin-6 (IL-6), IL-8 and tumor necrosis factor-α according to presence of diabetes or percentage of HbA1c among the groups, despite groups with T2DM and periodontitis exhibit higher levels of PD.
Conclusion:
Within the limitations of this study, inflammatory mediators in GCF are dependent to the local response and do not correlate with the diabetic status.
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Improving oral health status of preschool children using motivational interviewing method
Tayebeh Malek Mohammadi, Abolghasem Hajizamani, Elham Bozorgmehr
September-October 2015, 12(5):476-481
DOI
:10.4103/1735-3327.166231
PMID
:26604963
Background:
Oral diseases are common chronic diseases that are affected by human health behavior. One-way to promote health behaviors can be achieved through education. The present study aims to assess the effect of an oral health education program using motivational interviewing (MI) method on oral health status of preschool children.
Materials and Methods:
This study recruited 222 volunteer children and their parents from 10 elementary schools into a community trial. At baseline, plaque, gingival and decayed, missing, and filled teeth indexes were measured in the children. They were randomly allocated into test groups where they and their parents received oral health education using MI and the control group received traditional oral health education. The test group had recall and postal reminder during 6 months of the study, but there was no reminder for the control group. After 6 months, the same oral health indexes were measured. Data were analyzed using SPSS version 20 (SPSS Inc., Chicago, IL, USA) by
t
-test, Mann-Whitney and Wilcoxon signed ranks test.
P
< 0.05 was considered as significant.
Results:
The results showed that after both oral health education programs, differences of plaque index (PI) (
P
= 0.000) and gingival index (
P
= 0.000) were significant between the two groups. The number of children with healthy gingiva and low PI were more frequent in the test group after intervention.
Conclusion:
Considering the limitations of this study, oral health status of children after education of parents using MI was observed, and it should be considered in oral health education programs.
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CASE REPORTS
Giant sialoliths of Wharton duct: Report of two rare cases and review of literature
Hossein Shahoon, Sareh Farhadi, Roya Hamedi
September-October 2015, 12(5):494-497
DOI
:10.4103/1735-3327.166238
PMID
:26604966
Sialolithiasis is a common disease of the major salivary glands, characterized by the obstruction of a salivary gland or its excretory duct due to the formation of calcareous concretions. Sialoliths usually measure from 1 mm to <10 mm. They rarely measure more than 15 mm, and infrequently giant salivary gland calculi >15 mm have been reported in the literature. The submandibular gland and its duct appear to be the most susceptible sites for this disease. In this article, we report two unique cases, including a giant bilateral case, measuring 50 mm in length and 5 mm in width on the right side and one, 30 mm in length, and 5 mm in width on the left side; and another case, measuring 83 mm in length. The diagnostic and therapeutic approaches consisted of transocclusal radiography with the conservative transoral surgical technique in both cases. The follow-up showed the normal function of the relevant salivary glands. To the best of our knowledge and belief, similar cases have not been reported in the literature.
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ORIGINAL ARTICLES
Effect of the use of snuff on the levels of interleukin-1 β and interleukin-8 in the gingival crevicular fluid of periodontitis patients
Vijayendra Pandey, Sharib Abdus Salam, Aman Moda, Preeti Agarwal, Sonia Nath, Shaju Jacob Pulikkotil
September-October 2015, 12(5):461-468
DOI
:10.4103/1735-3327.166222
Background:
Use of smokeless tobacco in the form of moist snuff placed in the oral cavity is popular in rural India. The aim of the present cross-sectional study was to determine the effect of snuff on periodontitis by assessing interleukin (IL)-1 β and IL-8 levels in gingival crevicular fluid.
Materials and Methods:
A total of 60 subjects were selected for this study. 40 subjects presented with periodontitis, which included 20 snuff users (SP) and 20 nonsnuff users (NS). 20 periodontally healthy patients formed the controls (healthy control: HC). The clinical parameters recorded were gingival index (GI), plaque index, calculus index, bleeding on probing (BOP), probing depth (PD), recession (RC), and clinical attachment level (CAL). The IL-1 β and IL-8 levels were assessed through enzyme-linked immunosorbent assay (Quantikine
®
). Analysis of variance (ANOVA),
post
-
hoc
Tukey's, Kruskal-Walli's ANOVA and Mann-Whitney test was used for comparison among groups and
P
> 0.05 was considered statistically significant.
Results:
No significant difference was seen in levels of IL-1 β and IL-8 between SP and NS groups (
P
= 0.16, 0.97). However, both the periodontitis groups (SP and NS) had increased IL-β levels when compared to HC group (
P
= 0.01, 0.001). The snuff users showed significant increase in GI, BOP, RC, and CAL when compared with NS (
P
= 0.002, 0.001, 0.012, 0.002) whereas NS group had significant increase in PD (
P
= 0.003).
Conclusion:
Within the limitations of this study, use of snuff does not affect the host inflammatory response associated with periodontitis and leads to RC and increased CAL due to local irritant effect.
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NOTICE OF RETRACTION
Emergence of cancer stem cells in head and neck squamous cell carcinoma: A therapeutic insight with literature review: Retraction
September-October 2015, 12(5):498-498
DOI
:10.4103/1735-3327.166239
PMID
:26604967
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1,556
234
ORIGINAL ARTICLES
Effect of electrical spot welding on load deflection rate of orthodontic wires
Shiva Alavi, Arezoo Abrishami
September-October 2015, 12(5):438-442
DOI
:10.4103/1735-3327.166191
PMID
:26604957
Background:
One of the methods used for joining metals together is welding, which can be carried out using different techniques such as electric spot welding. This study evaluated the effect of electric spot welding on the load deflection rate of stainless steel and chromium-cobalt orthodontic wires.
Materials and Methods:
In this experimental-laboratory study, load deflection rate of 0.016 × 0.022 inch stainless steel and chromium cobalt wires were evaluated in five groups (
n
=18): group one: Stainless steel wires, group two: chromium-cobalt wires, group three: stainless steel wires welded to stainless steel wires, group four: Stainless steel wires welded to chromium-cobalt wires, group five: chromium-cobalt wire welded to chromium-cobalt wires. Afterward, the forces induced by the samples in 0.5 mm, 1 mm, 1.5 mm deflection were measured using a universal testing machine. Then mean force measured for each group was compared with other groups. The data were analyzed using repeated measure analysis of variance (ANOVA), one-way ANOVA, and paired
t
-test by the SPSS software. The significance level was set as 0.05.
Results:
The Tukey test showed that there were significant differences between the load deflection rates of welded groups compared to control ones (
P
< 0.001).
Conclusion:
Considering the limitation of this study, the electric spot welding process performed on stainless steel and chromium-cobalt wires increased their load deflection rates.
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