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   2017| October-December  | Volume 8 | Issue 4  
    Online since November 29, 2017

 
 
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ORIGINAL RESEARCHES
Efficacy of NovaMin- and Pro-Argin-containing desensitizing dentifrices on occlusion of dentinal tubules
Shivani Shah, Ashwini Tumkur Shivakumar, Onkar Khot, Chetan Patil, Namrata Hosmani
October-December 2017, 8(4):104-109
DOI:10.4103/denthyp.denthyp_30_17  
Introduction: Dentin hypersensitivity is a commonly occurring condition characterized by short, sharp pain arising from the exposed dentine in response to stimuli. Materials and Methods: Seventy extracted human permanent molars were selected and divided into four groups. The photomicrographs of the surface from the center of each dentinal block were obtained using a scanning electron microscope. The objective of this study was to evaluate the ability of three desensitizing dentifrices − SHY-NM (NovaMin), Sensitive Pro-Relief (8% arginine and calcium carbonate) and Thermoseal (10% strontium chloride) − for dentinal tubule occlusion using a scanning electron microscope. Results: All of the desensitizing dentifrices evaluated, SHY-NM showed the highest percentage of tubular occlusion (95.58%) followed by Sensitive Pro-Relief (89.90%). The least amount of tubular occlusion was shown by Thermoseal (86.12%). Conclusion: NovaMin-containing toothpaste, SHY-NM, showed maximum tubular occlusion and it appears to be a promising desensitizing dentifrice.
  3,179 291 -
EDITORIAL
Facebook and contemporary dental researches
Jafar Kolahi
October-December 2017, 8(4):85-86
DOI:10.4103/denthyp.denthyp_51_17  
  1,689 1,088 1
ORIGINAL RESEARCHES
Readiness and utilization of computer-assisted learning among dental students and faculty
Baranya S Suprabha, Ramya Shenoy, Arathi Rao, Ashwini Rao, Dilip G Naik
October-December 2017, 8(4):87-93
DOI:10.4103/denthyp.denthyp_18_17  
Introduction: An assessment of computer literacy and readiness is required for successful implementation of a structured computer-assisted learning (CAL). The present study was aimed to assess and compare computer literacy, attitude toward implementation of a structured CAL, and the current level of use of computer/laptop for academic purposes by students and faculty. In addition, the difference in attitude toward structured CAL and the current level of use of computer/laptop, based on computer literacy were evaluated. Materials and Methods: In this cross-sectional study 316 undergraduate students and 57 faculties of a dental school in India. Computer literacy, the current level of use, and attitudes toward a structured CAL were assessed using a questionnaire. Participants were divided into basic user, intermediate user, and advanced user based on computer literacy. Data were analyzed using Chi-square test. Results: Most of the students and faculty were intermediate users. Faculty used the internet for academic purposes at a significantly higher frequency and accessed a wide variety of internet sites and material as compared to students. Most of the students and faculty favored introducing a structured CAL. The favorable attitude toward structured CAL and the better utilization of laptops for academic purposes were associated with the level of computer literacy among students. Conclusions: Both faculty and students favor the use of structured CAL. Higher computer literacy results in more use and favorable attitude toward structured CAL among students. Further training of faculty and students is needed to improve the readiness and utilization of CAL.
  1,525 990 -
Antimicrobial efficacy of silver nanoparticles with and without different antimicrobial agents against Enterococcus faecalis and Candida albicans
Anil Chandra, Rakesh K Yadav, Vijay K Shakya, Suaib Luqman, Simith Yadav
October-December 2017, 8(4):94-99
DOI:10.4103/denthyp.denthyp_17_17  
Introduction: The aim of this ex vivo study was to check the antimicrobial efficacy of silver nanoparticles with and without different antimicrobials against Enterococcus faecalis and Candida albicans. Materials and Methods: Two-hundred and fifty two freshly extracted single-rooted human teeth were contaminated with E. faecalis and C. albicans. The teeth were randomly divided into five experimental (n = 21) and one control group (n = 21). Each subgroup was then exposed to different antimicrobials, namely calcium hydroxide (Ca(OH)2) (Group 1), 2% chlorhexidine (CHX) (Group 2), silver nanoparticles (SNP) (Group 3), SNP with Ca(OH)2 (Group 4), SNP with 2% CHX (Group 5), and saline as control group (Group 6). Cultures were made from each group after 24 h, 7 days, and 14 days, and colony forming units were counted. The Kruskal–Wallis test was used to compare the study parameters among the groups at 24 h, 7 days, and 14 days. Results: Significant difference was found in the antimicrobial efficacy of different intracanal medicaments against E. faecalis and C. albicans after 24 h, 7 days, and 14 days. 2% CHX was found to be the most effective medicament at 24 h, 7 days, and 14 days against E. faecalis and C. albicans. Combination of SNP with 2% CHX and Ca(OH)2 and SNP alone ranked second in their antimicrobial efficacy against E. faecalis and C. albicans at 24 h, 7 days, and 14 days, respectively. Conclusion: 2% CHX was more effective as intracanal medicament against E. faecalis and C. albicans biofilm in both short as well as long-term duration, i.e., at 24 h, 7 days, and 14 days.
  1,569 247 1
The accuracy of linear and angular measurements in the different regions of the jaw in cone-beam computed tomography views
Mehrdad Abdinian, Homa Baninajarian
October-December 2017, 8(4):100-103
DOI:10.4103/denthyp.denthyp_29_17  
Introduction: The use of cone-beam computed tomography (CBCT) has increased lately. The aim of this study was to evaluate the accuracy of linear and angular measurements by CBCT in the different areas of the jaws. Materials and Methods: In this study, the mesiodistal width and height as well as the angular measurements were ascertained in four different sites of the mandibular and maxillary jaws (anterior, canine, premolar, and molar regions). Each area was outlined by gutta-percha as opaque markers. The measurements were obtained by a digital caliper (as gold standard) and on CBCT views including “three-dimensional” and “panaroma” (section thickness of 5 and 10 mm). Data were analyzed by the one-way analysis of variance (ANOVA). Results: The means [standard deviation (SD)] of measurement accuracy of all groups were more than 90%. There was no significant difference between the means (SD) of measurement accuracy of all views (oneway ANOVA, P > 0.05). The means (SD) of measurement accuracy of all views in four regions of the jaws had no significant difference (one-way ANOVA, P > 0.05). Conclusion: This study showed that CBCT imaging has a high degree of measurement accuracy in all three horizontal, vertical, and angular measurements as well as the “panorama” (5- and 10-mm thicknesses) and “three-dimensional” views in all the areas of the jaws. Therefore, the use of CBCT in the linear and angular measurements of the dentomaxillofacial region can be recommended.
  1,615 197 1
CASE REPORT
Management of complicated crown-root fracture in central incisors using intentional replantation with 180° rotation: A case report
Reyhaneh Faghihian, Alireza Eshghi, Hamid Mosleh, Najmeh Akhlaghi
October-December 2017, 8(4):113-116
DOI:10.4103/denthyp.denthyp_34_17  
Introduction: Complicated crown-root fractures are rare and their treatment is complex. Numerous methods such as crown lengthening and orthodontic or surgical extrusion have been described for the treatment of crown-root fracture. The aim of this study was to report managing complicated crown-root fracture using intentional replantation with 180° rotation. Case report: This case report demonstrates successful management of complicated crown-root fracture in central incisor of a 10-year-old boy using intentional replantation with 180° rotation. Discussion: At 18-month follow-up, the replanted tooth revealed normal function with no obvious resorption.
  1,444 206 -
ORIGINAL HYPOTHESIS
New evaluation for dental treatment using a body-composition analyzer
Yuki Kojima, Mizuha Kojima, Nobuhiro Kokubun, Megumi Inage, Tomoka Kasen, Kaori Nohara, Kazuhiro Sakaguchi, Yutaka Sakaguchi
October-December 2017, 8(4):110-112
DOI:10.4103/denthyp.denthyp_36_17  
Introduction: Patients receiving home dental treatment typically have worse activities of daily living (ADL) scores than those of dental clinic outpatients. They cannot live independently, without somebody’s help, because of disabilities and motor dysfunction. In home-care, treatment for dysphagia is important for maintaining or improving ADL. New indicators that can be measured more simply and more quantitatively are required. The Hypothesis: We hypothesized that measurements obtained using a body composition analyzer may be applicable as a whole-body condition evaluation method for home-care patients. The advantage is its simple operation, lack of invasiveness, and short measurement time. Evaluation of the Hypothesis: If certain easy-to-use devices that can be used for home-based measurements can be developed in future, it may become possible to perform more effective check-ups in home-care cases. On the basis of the measurements obtained in this manner, patients can be provided rehabilitation plans and daily meal guidance.
  915 140 -
LETTER TO EDITOR
Comment: Does absence or malformations of oral frenulae indicate orofacial developmental fields with dermatome abnormalities
Santhosh Kumar, Kukkamalla Meena Anand
October-December 2017, 8(4):117-117
DOI:10.4103/denthyp.denthyp_39_17  
  776 97 -
AUTHORS REPLY
Author's reply: Comment: Does absence or malformations of oral frenulae indicate orofacial developmental fields with dermatome abnormalities
Inger Kjaer
October-December 2017, 8(4):118-119
DOI:10.4103/denthyp.denthyp_46_17  
  698 81 -
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