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Odontology

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https://www.readbyqxmd.com/read/29330707/effects-of-periodontal-treatment-on-carotid-intima-media-thickness-in-patients-with-lifestyle-related-diseases-japanese-prospective-multicentre-observational-study
#1
Chieko Kudo, Wee Soo Shin, Nobuhiro Sasaki, Kazuo Harai, Kai Kato, Hiroaki Seino, Eiji Goke, Takemasa Fujino, Nobuichi Kuribayashi, Youko Onuki Pearce, Masato Taira, Ryoji Matsushima, Masato Minabe, Shogo Takashiba
Atherosclerosis, a chronic inflammatory disease in arterial blood vessels, is one of the major causes of death in worldwide. Meanwhile, periodontal disease is a chronic inflammatory disease caused by infection with periodontal pathogens such as P. gingivalis (Porphyromonas gingivalis). Several studies have reported association between periodontal infection and atherosclerosis, but direct investigation about the effects of periodontal treatment on atherosclerosis has not been reported. We have planned Japanese local clinics to determine the relationship between periodontal disease and atherosclerosis under collaborative with medical and dental care...
January 12, 2018: Odontology
https://www.readbyqxmd.com/read/29330706/color-stability-of-different-composite-resins-after-polishing
#2
Stefano Ardu, O Duc, E Di Bella, I Krejci
The goals of the present study were to evaluate, in vitro, the staining of different composite resins submitted to different common beverages, and to compare the staining effect of each of these solutions. A total of 288 specimens were randomly divided into six groups and immersed for 4 weeks in five staining solutions represented by red wine, orange juice, coke, tea and coffee or in artificial saliva as a control group. When analyzed over a black background, mean ΔE00 values varied from 0.8 for Venus Diamond, Saremco Microhybrid and ELS in saliva and Estelite Posterior in coke to 37...
January 12, 2018: Odontology
https://www.readbyqxmd.com/read/29330705/association-between-skeletal-morphology-and-agenesis-of-all-four-third-molars-in-japanese-orthodontic-patients
#3
Yoshiko Sugiki, Yoshiki Kobayashi, Miwa Uozu, Toshiya Endo
The purpose of this study was to clarify differences in skeletal morphologies between male and female orthodontic patients with and without agenesis of all four third molars. A total of 64 patients (32 males and 32 females) with agenesis of all four third molars without agenesis of other teeth were selected as the third molars agenesis group (group 1). In addition, 64 patients (32 males and 32 females) with all these teeth were selected as controls (group 2). Lateral cephalograms taken between the ages of 14 and 30 years were used to compare skeletal morphology between groups 1 and 2 and between sexes...
January 12, 2018: Odontology
https://www.readbyqxmd.com/read/29274049/correction-to-expression-of-optineurin-isolated-from-rat-injured-dental-pulp-and-the-effects-on-inflammatory-signals-in-normal-rat-kidney-cells
#4
Kyoko Senoo, Keisuke Yamashiro, Tadashi Yamamoto, Fumio Myokai, Mari Kawamura, Shogo Takashiba
In the original publication of the article, one of the author name was published incorrectly as "Keisuke Yamashairo" and correct name should be "Keisuke Yamashiro".
December 22, 2017: Odontology
https://www.readbyqxmd.com/read/29260334/from-editor-in-chief
#5
EDITORIAL
Makoto Tsuchimochi
No abstract text is available yet for this article.
December 19, 2017: Odontology
https://www.readbyqxmd.com/read/29256042/clinical-usability-of-aspartate-aminotransferase-to-evaluate-the-prognosis-of-periodontal-regeneration-therapies-prospective-longitudinal-study
#6
Yohei Nakayama, Miyuki Takei-Obi, Izumi Toyoshima-Matsumura, Mai Tsutamori, Ayako Kato, Chiharu Okano, Masaru Mezawa, Yorimasa Ogata
To evaluate the degree of periodontal tissue destruction, aspartate aminotransferase (AST) levels in the gingival crevicular fluid (GCF) are utilized as a predictor of periodontal therapy. We have previously shown that the usefulness of AST activities [periodontal tissue monitor (PTM) values] using a PTM-kit to evaluate the effects of initial periodontal therapy and periodontal regeneration therapy by enamel matrix derivative (EMD). This prospective, longitudinal study was conducted using 38 healthy and 80 periodontitis sites with probing depth (PD) of 5-10 mm for guided tissue regeneration (GTR) and EMD from 36 patients...
December 18, 2017: Odontology
https://www.readbyqxmd.com/read/29243187/bonding-performance-of-self-adhesive-flowable-composites-to-enamel-dentin-and-a-nano-hybrid-composite
#7
Jana Peterson, Marta Rizk, Monika Hoch, Annette Wiegand
This study aimed to analyze bond strengths of self-adhesive flowable composites on enamel, dentin and nano-hybrid composite. Enamel, dentin and nano-hybrid composite (Venus Diamond, Heraeus Kulzer, Germany) specimens were prepared. Three self-adhesive composites (Constic, DMG, Germany; Fusio Liquid Dentin, Pentron Clinical, USA; Vertise Flow, Kerr Dental, Italy) or a conventional flowable composite (Venus Diamond Flow, Heraeus Kulzer, Germany, etch&rinse technique) were applied to enamel and dentin. Nano-hybrid composite specimens were initially aged by thermal cycling (5000 cycles, 5-55 °C)...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29243186/effect-of-root-canal-sealers-on-human-periodontal-ligament-fibroblast-viability-ex-vivo-study
#8
Grzegorz Szczurko, Małgorzata Pawińska, Elżbieta Łuczaj-Cepowicz, Anna Kierklo, Grażyna Marczuk-Kolada, Adam Hołownia
The aim of the study was to compare ex vivo the toxic effects of six root canal sealers immediately after mixing or setting on human periodontal ligament fibroblasts (HPdLF). Freshly mixed (I group) or set (allowed to dry for 24 h) (II group) specimens of AH Plus Jet (AH), Apexit Plus (AP), MTA Fillapex (FL), GuttaFlow (GF), MetaSEAL Soft (META), and Tubli-Seal (TS) were prepared. HPdLF were exposed for 24 h to the specimens. 3-(4,5-dimethylthiazolo-2-yl)-2,5-diphenyltetrazolium bromide assay was used to examine the effect of the root canal sealers on mitochondrial metabolic activity...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29243185/effect-of-fiber-post-length-and-abutment-height-on-fracture-resistance-of-endodontically-treated-premolars-prepared-for-zirconia-crowns
#9
Jie Lin, Jukka Pekka Matinlinna, Akikazu Shinya, Michael George Botelho, Zhiqiang Zheng
The purpose of this study was to compare the fracture resistance, mode of fracture, and stress distribution of endodontically treated teeth prepared with three different fiber post lengths and two different abutment heights, using both experimental and finite element (FE) approaches. Forty-eight human maxillary premolars with two roots were selected and endodontically treated. The teeth were randomly distributed into six equally sized groups (n = 8) with different combinations of post lengths (7.5, 11, and 15 mm) and abutment heights (3 and 5 mm)...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29243184/study-of-myb-nfib-chimeric-gene-expression-tumor-angiogenesis-and-proliferation-in-adenoid-cystic-carcinoma-of-salivary-gland
#10
Junya Ono, Yasuo Okada
Adenoid cystic carcinoma (ACC) is one of the common malignant tumors in salivary glands, and the clinical prognosis is poor with frequent distant metastasis which may lead to death. Expression of the MYB-NFIB chimeric gene in ACC has been reported recently. MYB is an oncogene with transcription regulating functions, and NFIB encodes nuclear transcription factor although detailed functions are unknown. This study investigated whether MYB-NFIB chimeric gene expression affects tumor angiogenesis and proliferation in salivary gland ACC...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29243183/effects-of-experimental-periodontitis-on-the-metabolic-system-in-rats-with-diet-induced-obesity-dio-an-analysis-of-serum-biochemical-parameters
#11
Ryutaro Kuraji, Miyako Fujita, Hiroshi Ito, Shuichi Hashimoto, Yukihiro Numabe
Recent studies have shown that periodontitis accelerates the progression of obesity-associated metabolic diseases. Thus, we examined the influence of periodontitis on serum biochemical parameters of metabolic disease in a diet-induced obesity (DIO) rat. First, we established the DIO model using ten male rats fed with either basal diet (lean group) or high-fat diet (DIO group) for 12 weeks. Second, to examine the interaction between periodontitis and obesity, we divided 24 DIO rats into the following four groups...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29243182/the-facial-nerve-anatomy-and-associated-disorders-for-oral-health-professionals
#12
Kojiro Takezawa, Grant Townsend, Mounir Ghabriel
The facial nerve, the seventh cranial nerve, is of great clinical significance to oral health professionals. Most published literature either addresses the central connections of the nerve or its peripheral distribution but few integrate both of these components and also highlight the main disorders affecting the nerve that have clinical implications in dentistry. The aim of the current study is to provide a comprehensive description of the facial nerve. Multiple aspects of the facial nerve are discussed and integrated, including its neuroanatomy, functional anatomy, gross anatomy, clinical problems that may involve the nerve, and the use of detailed anatomical knowledge in the diagnosis of the site of facial nerve lesion in clinical neurology...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29243181/tooth-agenesis-code-tac-in-complete-unilateral-and-bilateral-cleft-lip-and-palate-patients
#13
Ana López-Giménez, Javier Silvestre-Rangil, Francisco Javier Silvestre, Vanessa Paredes-Gallardo
The objective of this study is to characterize and compare tooth agenesis codes and their prevalence in a population of Spanish patients with unilateral cleft lip and palate (UCLP) and bilateral cleft lip and palate (BCLP), and to determine if the extent of the cleft (BCLP or UCLP) was associated with the number of absent teeth. This retrospective cross-sectional human study included 118 patients with complete BCLP (29) or UCLP (89) and permanent dentition from first molar to first molar. Congenitally missing teeth were identified on panoramic radiographs using the tooth agenesis code (TAC) to identify agenesis codes...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29236177/effect-of-er-yag-laser-enamel-conditioning-and-moisture-on-the-microleakage-of-a-hydrophilic-sealant
#14
Zeynep Aslı Güçlü, Andrew Paul Hurt, Nazmiye Dönmez, Nichola Jayne Coleman
For a given sealant, successful pit and fissure sealing is principally governed by the enamel conditioning technique and the presence of moisture contamination. A new generation of hydrophilic resin sealants is reported to tolerate moisture. This study investigates the impact of Er:YAG laser pre-conditioning and moisture contamination on the microleakage of a recent hydrophilic sealant. Occlusal surfaces of extracted human molars were either acid etched (n = 30), or successively lased and acid etched (n = 30)...
December 13, 2017: Odontology
https://www.readbyqxmd.com/read/29236176/na18f-accumulates-on-the-compressive-side-of-peri-implant-bone-under-immediate-loading
#15
Miou Yamamoto, Toru Ogawa, Masayoshi Yokoyama, Yoshihito Funaki, Kenta Shobara, Aya Shibamoto, Juan Ramón Vanegas Sáenz, Keiichi Sasaki
This study aimed to examine the dynamic change in bone metabolism by immediate loading in several sites around implants using high-resolution Na18F-PET scan. Two titanium implants (Ø 1.2 mm) were inserted parallel to each other in the right tibiae of Wistar rats (n = 4). The left tibia was set as control side. One day after insertion, closed coil springs of 4.0 N were attached to the expose superior portions of the implants to apply a continuous mechanical stress. The rats with fluorine-18 (18F) ion (5 mCi/rat) intravenously injected were scanned by PET scanner at 4, 7, 14, 28 days after load application...
December 13, 2017: Odontology
https://www.readbyqxmd.com/read/29071451/effect-of-antimicrobial-photodynamic-therapy-apdt-on-the-sterilization-of-infected-dentin-in-vitro
#16
Yuta Nagai, Anri Suzuki, Hiroaki Katsuragi, Koichi Shinkai
The aim of this study was to evaluate the bactericidal effect of antimicrobial photodynamic therapy (aPDT) on an infected dentin model. Dentin plates were prepared from extracted human molars and infected through immersion in a solution of Streptococcus mutans. The nine experimental groups consisted of two laser irradiation groups (650 nm laser: 650 laser and 940 nm laser: 940 laser), two photosensitizer groups (methylene blue: MB, and azulenocyanine: Azc), four aPDT groups (650 nm laser irradiation of MB: 650 laser-MB, 650 nm laser irradiation of Azc: 650 laser-Azc, 940 nm laser irradiation of MB: 940 laser-MB and 940 nm laser irradiation of Azc: 940 laser-Azc) and a control...
October 25, 2017: Odontology
https://www.readbyqxmd.com/read/28988286/odontology-prize-2017
#17
(no author information available yet)
No abstract text is available yet for this article.
October 2017: Odontology
https://www.readbyqxmd.com/read/28936637/significant-prognostic-factors-affecting-treatment-outcomes-of-salivary-gland-carcinoma-a-multicenter-retrospective-analysis
#18
Shin-Ichi Yamada, Hiroshi Kurita, Takahiro Kamata, Tadaaki Kirita, Michihiro Ueda, Tetsuro Yamashita, Yoshihide Ota, Mitsunobu Otsuru, Nobuhiro Yamakawa, Masaya Okura, Tomonao Aikawa, Masahiro Umeda
The purpose of this study was to investigate the prognostic factor in salivary gland carcinoma patients. Clinical and pathological data of 211 consecutive patients who treated with curative intent were analyzed. The overall survival (OS) rate, local control rate, and distant metastasis rate were calculated. To examine a prognostic factor in salivary gland carcinoma patients, a multivariate analysis was performed. The 5-year-OS rate was 84.0%, and 10-year was 69.2%. The 5-year-local control rate was 84.6%, and 10-year was 70...
September 21, 2017: Odontology
https://www.readbyqxmd.com/read/28840411/long-term-durability-of-orthodontic-mini-implants
#19
Mona Aly Abbassy, Ahmed Samir Bakry, Khalid Hashim Zawawi, Ali Habib Hassan
The current study aimed at examining surface and chemical composition changes of retrieved mini-implants after different periods of service as aids of anchorage for orthodontic patients. This study examined 72 retrieved orthodontic self-tapping and self-drilling mini-implants, 1.7 mm in diameter and 8 mm in length (OrthoEasy system, Forestadent, Pforzheim, Germany) from 36 adult orthodontic patients (18 men and 18 women, mean age = 23 years). The retrieved mini-implants were divided into 3 groups according to service period: 3-6 months (3M-6M) group, 6-12 months (6M-12M) group, and 12-24 months (12M-24M) group, with 24 mini-implants in each group...
August 24, 2017: Odontology
https://www.readbyqxmd.com/read/28831602/plaque-accumulation-on-titanium-disks-with-different-surface-treatments-an-in-vivo-investigation
#20
Enrico Conserva, Luigi Generali, Alberto Bandieri, Francesco Cavani, Francesco Borghi, Ugo Consolo
Implants with rough surfaces are today widely used. It has been speculated that rough surfaces (Ra > 0.2 μm) provide a better "substrate" for retention and accumulation of plaque in terms of area, thickness and colony-forming unit that can eventually lead to peri mucositis and/or peri-implantitis. The aim of this investigation was to evaluate in vivo the plaque accumulation after 48 h on three implant surfaces with different treatments. For this investigation, we used 21 sterilized titanium disks, with a diameter of 8mm and a thickness of 3 mm, provided by the manufacturer: 7 with machined surface, as smooth control, 7 with HA grit sandblasted RBM surface and 7 with Ca(++) incorporated in titanium Xpeed surface...
August 22, 2017: Odontology
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