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Journal of Investigative and Clinical Dentistry

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https://www.readbyqxmd.com/read/28762671/comparison-of-different-polishing-methods-on-the-surface-roughness-of-microhybrid-microfill-and-nanofill-composite-resins
#1
Mariana D Moda, André Gustavo de L Godas, Juliana C Fernandes, Thaís Y U Suzuki, Ana Paula A Guedes, André L F Briso, Ana Karina Bedran-Russo, Paulo H Dos Santos
AIM: The aim of the present study was to evaluate the effect of different polishing methods on the surface roughness of resin-based composites subjected to a thermocycling procedure. METHODS: A total of 192 specimens were divided into 24 groups, according to composite materials (Filtek Z250, Point 4, Renamel Nanofill, Filtek Supreme Plus, Renamel Microfill, and Premise) and finishing and polishing systems (Sof-Lex Pop On, Super Snap, Flexidisc, and Flexidisc+Enamelize)...
August 1, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28762669/white-spot-lesions-does-etching-really-matter
#2
Moufida Abufarwa, Robert D Voorhees, Venu G Varanasi, Phillip M Campbell, Peter H Buschang
AIM: The clinical significance of acid etching prior to orthodontic bonding is controversial. In the present study, we evaluated the effect of 15 seconds of acid etching on enamel demineralization. METHODS: Twenty-seven human molars were sectioned and assigned to two groups. Under standardized conditions, the enamel surfaces were imaged using FluoreCam to obtain baseline data. Group 1 was etched using 37% phosphoric acid for 15 seconds, rinsed with water, and then imaged again; group 2 was only rinsed with water...
August 1, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28762655/knowledge-and-practice-of-and-attitudes-toward-pulp-therapy-in-deciduous-teeth-among-pediatric-dentists-in-india
#3
Ullal A Nayak, Saakshe Wadhwa, Nilotpol Kashyap, Deepesh Prajapati, Amit V Mahuli, Reena Sharma
AIM: The aim of the present study was to assess the knowledge and practice of, and attitudes toward, pulp therapy in deciduous dentition among pediatric dentists. METHODS: A cross-sectional, observational survey was conducted using a closed-ended, multiple-choice questionnaire evaluating the knowledge and practice of, and attitudes toward, pulp therapy in deciduous dentition, which was formulated and sent to 360 pediatric dentists across India. Descriptive statistics were done, followed by χ(2) -test to test the association between years of experience and the questionnaire items...
August 1, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28714220/histochemical-analysis-of-collagen-reorganization-at-the-invasive-front-of-oral-squamous-cell-carcinoma-tumors
#4
Alrani Devendra, Kochli C Niranjan, Acharya Swetha, Hallikeri Kaveri
AIM: The aim of the present study was to: (a) analyze the nature of collagen with respect to cohesive and discohesive invasive tumor front (ITF) of oral squamous cell carcinoma (OSCC); (b) analyze the clinicopathological correlation with the nature of collagen at the ITF of OSCC; and (c) correlate the nature of collagen with Broder's and Bryne's histological grading system of OSCC. METHODS: Tissue sections of 29 OSCC with ITF were stained with hematoxylin-eosin and picrosirius red staining for evaluation under a polarized microscope...
July 17, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28707772/clinicopathological-characteristics-of-desmoplastic-ameloblastoma-a-systematic-review
#5
REVIEW
Rahul Anand, Gargi S Sarode, Sachin C Sarode, Mamatha Reddy, Hemant V Unadkat, Shazia Mushtaq, Revati Deshmukh, Shakira Choudhary, Nitin Gupta, Anjali P Ganjre, Shankargouda Patil
The aim of the present review was to systematically present the clinicopathological data of desmoplastic ameloblastoma (DA) from articles published in the literature. A comprehensive search of the databases (PubMed, Medline, SCOPUS, Web of Science, and Google Scholar) for published articles on DA was conducted. A total of 238 cases were identified and analyzed from 76 published papers. DA showed a slight male predilection (male: female=1.07:1) with a predominance in the fourth and fifth decades of life. Mandibular involvement (52...
July 14, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28691316/efficacy-of-an-unwaxed-dental-floss-impregnated-with-2-chlorhexidine-on-control-of-supragingival-biofilm-a%C3%A2-randomized-clinical-trial
#6
Francisco Wilker Mustafa Gomes Muniz, Heitor da Silva Lima, Cassiano Kuchenbecker Rösing, Ricardo Souza Martins, Maria Mônica Studart Mendes Moreira, Rosimary de Sousa Carvalho
AIM: In the present study, we evaluated the antiplaque and antigingivitis efficacy of a dental floss impregnated with 2% chlorhexidine digluconate. METHODS: Thirty dental students were randomly divided into three groups (n=10): (a) negative control (NC) group, in which no interproximal cleaning was performed; (b) the positive control (PC) group, which used a standard unwaxed dental floss twice daily; and (c) and the test group, which used a unwaxed dental floss impregnated with 2% chlorhexidine twice daily...
July 9, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28685949/traditional-oral-health-beliefs-and-practices-of-bulang-people-in-yunnan-china
#7
Shinan Zhang, Edward C M Lo, Chun-Hung Chu
AIM: The aim of the present study was to explore traditional oral health beliefs among the Bulang ethnic minority group in China. METHODS: Eighteen village leaders, chiefs, elders, and seniors in Yunnan, China were assigned to three focus groups for discussion of traditional oral health beliefs. The discussions were led by a facilitator. Transcripts were made, and data were extracted. RESULTS: The focus group discussions on traditional oral health beliefs addressed three themes: (a) the perception of oral health; (b) the impact of healthy teeth (oral health), in that healthy teeth essentially have an impact on physical health, emotions, and social status; and (c) toothache management, which was regarded as tooth decay (dental caries)...
July 7, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28631896/boric-acid-gel-as-local-drug-delivery-in-the-treatment-of-class-ii-furcation-defects-in-chronic-periodontitis-a-randomized-controlled-clinical-trial
#8
Sandeep Singhal, Avani Raju Pradeep, Dharmendra Kanoriya, Shruti Garg, Vibhuti Garg
AIM: Boric acid (BA) exhibits antibacterial, anti-inflammatory, as well as osteoblastic, activity. The aim of the present study was to explore the efficacy of 0.75% BA gel as a local drug-delivery system in adjunct to scaling and root planing (SRP) for the treatment of class II furcation defects in comparison with placebo gel. METHODS: A total of 48 mandibular class II furcation defects were randomized and treated with either 0.75% BA gel or placebo gel. Clinical parameters were recorded at baseline, 3 months, and 6 months, while radiographic parameters were recorded at baseline and 6 months...
June 20, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28631891/no-detectable-human-herpesvirus-8-oral-shedding-in-seronegative-healthy-immunocompetent-individuals-from-non-endemic-regions-for-kaposi-s-sarcoma-a-pilot-study
#9
Tânia R Tozetto-Mendoza, Laura M Sumita, Michelle Palmieri, Mariana Ornaghi, Alan M do Canto, Paulo H Braz-Silva
AIM: Saliva can play an important role in human herpesvirus-8 (HHV-8) transmission in endemic regions for Kaposi's sarcoma (KS). Little is known about HHV-8 oral shedding in immunocompetent individuals from non-endemic regions for KS. METHODS: We conducted a prospective study of HHV-8 salivary excretion among 59 healthy, immunocompetent individuals from São Paulo, Brazil, followed up weekly for 4 months, resulting in 16 saliva samples from each participant. Antibodies to HHV-8 latency-associated nuclear antigen (LANA) and lytic-phase antigens were investigated with immunofluorescence assays (IFA)...
June 20, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28631885/reliability-and-validity-of-fluorecam-for-white-spot-lesion-detection-an-in-vitro-study
#10
Moufida Abufarwa, Amal Noureldin, Phillip M Campbell, Peter H Buschang
AIM: In the present study, we tested the reliability and validity of a new light fluorescence device, the FluoreCam. METHODS: Twenty-five human teeth were sectioned mesiodistally into halves. Group 1 (n=30) included specimens with either sound enamel or natural white-spot lesions (WSL). Group 2 (n=20) included specimens with sound enamel used to create artificial WSL. Using the FluoreCam, baseline scans of enamel surfaces were obtained under standardized conditions...
June 20, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28608463/effect-of-etching-on-bonding-of-a-self-etch-adhesive-to-dentine-affected-by-amelogenesis-imperfecta
#11
Don Jeevanie Epasinghe, Cynthia Kar Yung Yiu
AIM: Dentine affected by amelogenesis imperfecta (AI) is histologically altered due to loss of hypoplastic enamel and becomes hypermineralized. In the present study, we examined the effect of additional acid etching on microtensile bond strength of a self-etch adhesive to AI-affected dentine. METHODS: Flat coronal dentine obtained from extracted AI-affected and non-carious permanent molars were allocated to two groups: (a) Clearfil SE Bond (control); and (b) Clearfil SE Bond and additional etching with 34% phosphoric acid for 15 seconds...
June 13, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28544729/comparative-study-of-two-chemical-protocols-for-creating-white-spot-lesions-an-in-vitro-fluorecam-evaluation
#12
Moufida Abufarwa, Amal Noureldin, Phillip M Campbell, Peter H Buschang
AIM: The aim of the present study was to compare the effectiveness and practicality of two commonly-used protocols for white spot lesion creation. METHODS: Sound posterior human teeth were sectioned into halves and randomly allocated into two groups (n=20). Using the FluoreCam system, the enamel surfaces were imaged under standardized conditions, and baseline data (area, intensity, and impact) were recorded. Specimens were covered with an acid-resistant polish, leaving a 2×6-mm enamel window...
May 23, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28544653/minimally-invasive-dental-anesthesia-patients-preferences-and-analysis-of-the-willingness-to-pay-index
#13
Dino Re, Massimo Del Fabbro, Lorena Karanxha, Gabriele Augusti, Davide Augusti, Sabrine Fessi, Silvio Taschieri
AIM: The aim of the present prospective study was to evaluate the impact of a computer-controlled anesthesia on patients' comfort and to investigate, through the willingness-to-pay (WTP) index, and patients' acceptance of this new technology. METHODS: Fifty patients undergoing a class I or II restorative procedure were enrolled. A computer-controlled device for anesthetic delivery was utilized, and a questionnaire on the level of discomfort and WTP was given to all patients...
May 23, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27492786/variability-between-credit-units-dedicated-to-dental-and-clinical-sciences-in-dental-schools-across-the-usa
#14
Romesh P Nalliah, Michael S Forman, Sydnee E Chavis, Peggy Timothé
PURPOSE: The Commission of Dental Accreditation (CODA) does not set minimum standards for clock hours of training in Dental and Clinical sciences. The purpose of this evaluation was to compare United States (US) dental schools for variability in clock hours. The current paper utilizes the American Dental Association's survey of clock hours of all US dental schools which is publicly available data. Clock hours survey from 2010 to 2011 was utilized and the analysis tool, JMP, was utilized to visualize and report variability...
August 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27477327/accuracy-of-radiographic-measurements-for-implant-planning-using-cone-beam-and-helical-computer-tomography
#15
Carl K K Leung, Edmond H N Pow, Thomas K L Li, Edward C M Lo, Tak W Chow
AIM: The aim of the present study was to compare the accuracy of radiographic measurements for dental implants planning using cone-beam computed tomography (CBCT) and helical computed tomography (HCT). METHODS: Six pig ribs were wrapped by putty impression material, with radiographic markers placed. Two CBCT and an HCT were taken following the standard protocols. Twenty-five locations were selected, with vertical and horizontal dimensions measured using the default software, as well as on the processed HCT films by a digital caliper...
August 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27477110/treatment-of-periodontal-intrabony-defects-using-autologous-platelet-rich-fibrin-and-titanium-platelet-rich-fibrin-a-randomized-clinical-comparative-study
#16
Anirban Chatterjee, Avani R Pradeep, Vibhuti Garg, Shravanthi Yajamanya, Mohammed M Ali, V Sneha Priya
AIM: The aim of the present study was to compare the effectiveness of open flap debridement (OFD) alone and OFD with either autologous platelet-rich fibrin (PRF) or titanium PRF (TPRF) in the treatment of intrabony defects (IBD). METHODS: The study was conducted on patients reporting to the Department of Periodontics, The Oxford Dental College and Hospital, Bangalore, India. Thirty-eight patients with 90 periodontal IBD of moderate-severe periodontitis were selected and assigned to the OFD alone group (group I), the OFD with autologous PRF group (group II), or the OFD with TPRF group (group III)...
August 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27443897/effect-of-an-extra-layer-of-hydrophobic-resin-on-the-microleakage-of-cl-v-composite-resin-restorations-with-a-universal-adhesive-system
#17
Mahmoud Bahari, Narmin Mohammadi, Parnian Alizadeh Oskoee, Siavash Savadi Oskoee, Farnaz Davoodi
AIM: The aim of the present study was to evaluate the effect of the application of a hydrophobic resin on the microleakage of Cl V composite resin restorations using a universal adhesive system applied in the self-etch (SE) and etch-and-rinse (ER) modes. METHOD: Cl V cavities were prepared on the buccal surfaces of 64 human premolar teeth and divided into four groups (n = 16): ER, ER with hydrophobic resin (ERH), SE, and SE with hydrophobic resin (SEH). Microleakage at occlusal and gingival margins was evaluated using 0...
August 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27443699/oral-lichen-planus-and-epithelial-dysplasia-with-lichenoid-features-a-review-and-discussion-with-special-reference-to-diagnosis
#18
REVIEW
D SharathKumar Sanketh, Shankargouda Patil, Balamukundan Swetha
Despite guidelines for the diagnosis of oral lichen planus (OLP), there has been much difficulty and ambiguity in rendering a straightforward diagnosis. The root of the problem might arise in not following universal guidelines and being too rigid and unilateral in making a diagnosis. Because of its autoimmune pathogenesis, the dynamic nature of OLP has further fueled confusions. This has had repercussions in the form of controversies in its diagnosis, treatment protocols, research, and most importantly, its potentially malignant nature...
August 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27440214/association-among-interleukin-6-gene-polymorphisms-type-2-diabetes-mellitus-and-chronic-periodontitis-a-pilot-study
#19
Loganathan Kavitha, Jayaseelan Vijayshree Priyadharshini, Balasundaram Sivapathasundharam
AIM: The purpose of this pilot study was to determine the association between single nucleotide polymorphisms (-174 G>C) in the interleukin-6 (IL-6) gene with chronic periodontitis (CP) and type 2 diabetes mellitus (T2DM) in south Indian population. METHODS: Genomic DNA was obtained from the white blood cells of 30 patients with T2DM, 30 patients with CP, 30 patients with T2DM with CP, and 30 controls. DNA was amplified using polymerase chain reaction with specific primers flanking the locus -174 of the IL-6 gene and further genotyped using the restriction fragment length polymorphism method...
August 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/27389714/matrix-metalloproteinases-3-gene-promoter-polymorphism-as-a-risk-factor-in-oral-submucous-fibrosis-in-an-indian-population-a-pilot-study
#20
Prajakta R Zade, Suchitra R Gosavi, Vinay K Hazarey, Sindhu M Ganvir
AIM: Host-related factors could be important to the fundamental understanding of oral diseases. One such factor is matrix metalloproteinases (MMP). MMP3 (stromelysin 1) is crucial in connective tissue remodeling. Promoter regions are specific segments of DNA that control the rate of mRNA synthesis. Thus, polymorphism in the (5A/6A) promoter region of the MMP3 gene results in different transcriptional activities and is related to susceptibility in diseases. The aim of the present study was to detect polymorphism in the MMP3 gene-promoter region in oral submucous fibrosis patients (OSF), oral squamous cell carcinoma patients (OSCC), and normal individuals with tobacco and areca nut habit and without lesions, and to correlate the genotype as a risk factor in these diseases...
August 2017: Journal of Investigative and Clinical Dentistry
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