journal
MENU ▼
Read by QxMD icon Read
search

Journal of Oral Science

journal
https://www.readbyqxmd.com/read/29311501/retrospective-clinical-evaluation-of-posterior-monolithic-zirconia-restorations-after-1-to-3-5-years-of-clinical-service
#1
Hiroto Gunge, Yoichiro Ogino, Masafumi Kihara, Yoshihiro Tsukiyama, Kiyoshi Koyano
This retrospective study analyzed clinical outcomes of monolithic zirconia restorations (MZRs) and factors related to restoration success. Patient records were searched to identify those provided MZRs (Cercon ht) for premolars or molars between April 2012 and March 2016. All MZRs were placed according to a standardized protocol. Kaplan-Meier analysis was used to assess MZR performance and failure after recall appointments at 1 year or later. In total, 101 patients received 148 MZRs. Mean duration of follow-up was 25...
December 28, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29162786/are-there-early-signs-that-predict-development-of-temporomandibular-joint-disease
#2
Adrian Salinas Fredricson, Farid Khodabandehlou, Carina Krüger Weiner, Aron Naimi-Akbar, Johanna Adami, Annika Rosén
Temporomandibular joint disorders (TMJD) involve orofacial pain and functional limitations that may limit important daily activities such as chewing and speaking. This observational case-control study attempted to identify factors associated with TMJD development, particularly inflammation. The study participants were patients treated at Karolinska University Hospital, Stockholm, Sweden. The cases were patients who received a diagnosis of TMJD, chronic closed lock, or painful clicking and were treated surgically during the period from 2007 through 2011...
November 22, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29162785/relevance-of-surface-characteristics-in-the-adhesiveness-of-polymicrobial-biofilms-to-crown-restoration-materials
#3
Ayako Teranaka, Kiyoshi Tomiyama, Katsura Ohashi, Kaori Miyake, Tota Shimizu, Nobushiro Hamada, Yoshiharu Mukai, Satoshi Hirayama, Tomotaro Nihei
We used a polymicrobial (PM) biofilm model to examine associations of bacterial adhesiveness with surface characteristics of various dental materials. Four types of dental materials (apatite pellet, zirconia, ceramic, and composite resin) with rough and mirror surfaces were used. Surface roughness, surface free energy, zeta potential, and colony-forming units (CFUs) of the biofilm formations were measured. Biofilms were cultured for 24 h under anaerobic conditions, plated onto blood agar medium, and anaerobically cultured for 4 days...
November 22, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29162784/quantitative-analysis-of-chronological-changes-in-the-volume-of-flaps-used-for-reconstruction-of-oral-cavity-defects
#4
Masashi Kimura, Ken Takada, Kenichiro Ishibashi, Hiroyuki Ohto, Akio Shibata, Hiroki Yamada, Shusuke Nishiwaki, Yoshiyuki Naganawa, Masahiro Umemura
Reconstruction of oral defects using flaps following resection of oral cancer has become a standard approach for restoration of oral function. The purpose of this study was to investigate chronological changes in the volume of such flaps used for reconstruction and the factors affecting flap volume. We performed a retrospective analysis of 17 patients who had undergone oral cancer resection and reconstruction with flaps. Measurements were performed using data from computed tomography, and the flaps were selected semi-automatically using a computer-operated region-of-interest system...
November 22, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29151459/the-ball-on-disk-cyclic-wear-of-cad-cam-machinable-dental-composite-and-ceramic-materials
#5
Kazuyuki Handa, Natsuko Murakami, Toshiki Yamazaki, Hidekazu Takahashi, Noriyuki Wakabayashi
The purpose of this study was to investigate the wear volume and the principal strain of machinable dental composite and ceramics in simulated mastication. A ball-on-disk wear test was performed for 3,000 cycles in water, using nine ball/disk combinations of three commercial CAD/CAM materials: feldspathic, lithium disilicate glass ceramics, and a highly loaded composite material (n = 7 for each combination). The wear volume was optically measured using a digital scanner and analyzed for statistical differences based on the materials (α = 0...
November 17, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29151458/comparison-of-efficacy-and-outcome-satisfaction-between-in-office-and-home-teeth-bleaching-in-chinese-patients
#6
Jie Nie, Fu-Cong Tian, Zu-Hua Wang, Adrian U Yap, Xiao-Yan Wang
This in vivo study aimed to evaluate the efficacy of in-office and home teeth bleaching in Asian patients. Moreover, the correlation between tooth color change and patient's outcome satisfaction was investigated. Overall, 40 Chinese patients were randomly divided into two groups and prescribed in-office (OB) or take-home bleaching (HB). The color of the maxillary central incisor and canine were recorded at baseline, immediately after first treatment, 1 week, and 3 months after treatment by using a spectrophotometer...
November 17, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29151457/anatomical-profile-of-the-mesial-root-of-the-burmese-mandibular-first-molar-with-vertucci-s-type-iv-canal-configuration
#7
Maung Maung Kyaw Moe, Jung-Hong Ha, Myoung-Uk Jin, Young-Kyung Kim, Sung Kyo Kim
This study evaluated the anatomical profile of the mesial root canals of the Burmese mandibular first molar with Vertucci's type IV canal configuration (VT4) using microcomputed tomography analysis. Seventy-five mesial roots of extracted mandibular first molars were scanned and evaluated. Fourteen middle mesial canals (MMCs) were observed in the specimens; each specimen had an average of 1.63 lateral canals and 3.77 apical foramina. The lateral canals arising from the mesiobuccal canal, mesiolingual canal, MMC, and isthmus terminated at an average distance of 0...
November 17, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29151456/characterization-of-specimens-obtained-by-different-sampling-methods-for-evaluation-of-periodontal-bacteria
#8
Ayako Okada, Kaoru Sogabe, Hiroaki Takeuchi, Masaaki Okamoto, Yoshiaki Nomura, Nobuhiro Hanada
Quantitative analysis of periodontal bacteria is considered useful for clinical diagnosis, evaluation and assessment of the risk of periodontal disease. The purpose of this study was to compare the effectiveness of sampling of saliva, supragingival and subgingival plaque for evaluation of periodontal bacteria. From each of 12 subjects, i) subgingival plaque was collected from the deepest pocket using a sterile paper point, ii) stimulated whole saliva was collected after chewing gum, and iii) supragingival plaque was collected using a tooth brush...
November 17, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29093284/cxcr4-signaling-contributes-to-alveolar-bone-resorption-in-porphyromonas-gingivalis-induced-periodontitis-in-mice
#9
Hidekazu Nagashima, Masamichi Shinoda, Kuniya Honda, Noriaki Kamio, Akira Hasuike, Naoyuki Sugano, Yoshinori Arai, Shuichi Sato, Koichi Iwata
Periodontitis caused by bacterial infection gradually progresses accompanied by periodontal tissue destruction. As a result, teeth lose their supporting structures, and this leads to tooth exfoliation. CXC-chemokine receptor 4 (CXCR4) is known to be expressed in lymphocytes, fibroblasts and osteoclasts in periodontal tissues, suggesting that periodontal CXCR4 signaling contributes to alveolar bone resorption in the milieu of periodontitis. However, the role of CXCR4 signaling in the pathogenesis of periodontitis has remained unknown...
October 31, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29093283/effect-of-adjunctive-use-of-systemic-antioxidant-therapy-n-acetylcysteine-on-soluble-receptor-activator-nuclear-factor-%C3%AE%C2%BAb-ligand-levels-in-gingival-crevicular-fluid-following-surgical-periodontal-treatment-for-chronic-periodontitis
#10
Baleegh Alkadasi, Saleem Abdulrab, Soheir Gaafer, Butchibabu Kalakonda, Manal Hosny, Olfat Shaker, Mohamed Hosny
N-acetylcysteine (NAC) is an anti-oxidant drug that has been used as a mucolytic agent and a paracetamol antidote for many years. This study was designed to determine the efficacy of the adjunctive use of NAC for periodontal treatment. Thirty subjects with moderate-to-severe chronic periodontitis were randomized to surgery with NAC (600 mg; S-NAC), surgery only (S-nonNAC), and healthy control groups. Gingival crevicular fluid (GCF) samples were obtained from all patients and sRANKL levels were determined by enzyme-linked immunosorbent assay at baseline, and 1, 3, and 7 months post-surgery...
October 31, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29093282/peri-implant-strain-around-mesially-inclined-two-implant-retained-mandibular-overdentures-with-locator-attachments
#11
Moustafa A Elsyad, Salem M Eltowery, Ashraf A Gebreel
This study aimed to evaluate the peri-implant strain around mesially inclined implants used to retain mandibular overdentures with Locator resilient attachments. Four mandibular edentulous acrylic resin models received two implants in the canine areas with 0°, 5°, 10°, and 20° mesial inclinations. Overdentures were connected to the implants using Locator attachments. Pink nylon inserts (light retention) were used for all implant inclinations, and red inserts were used for 20° inclination (20°red). Four strain gages were bonded on the mesial (M), distal (D), buccal (B), and lingual (L) surfaces of each implant...
October 31, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29093281/the-effects-of-essential-oil-povidone-iodine-and-chlorhexidine-mouthwash-on-salivary-nitrate-nitrite-and-nitrate-reducing-bacteria
#12
Takahiro Mitsui, Ryô Harasawa
Dietary nitrate is reduced to nitrite and nitric oxide by microbial flora, and this activity is beneficial to vascular health. It has been reported that this bacterial process is inhibited by chlorhexidine mouthwash, although the effects of other products are largely unknown. This study examined the effects of several treatments on salivary nitrate/nitrite and nitrate-reducing bacteria. Twelve university staff and students performed mouth-washing with water (control), essential oil, 0.35% povidone-iodine, or 0...
October 31, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28993579/role-of-orexin-receptor-subtypes-in-the-inhibitory-effects-of-orexin-a-on-potassium-chloride-induced-increases-in-intracellular-calcium-ion-levels-in-neurons-derived-from-dorsal-root-ganglion-of-carrageenan-treated-rats
#13
Manabu Ishikawa, Yuri Aono, Tadashi Saigusa
We analysed the roles of orexin receptors in the effects of orexin-A on KCl-induced increases in intracellular calcium ion levels ([Ca(2+)]i) in C-fiber-like small neurons of rats with inflammation induced by intraplantar injection of carrageenan into the hind paw. Controls were treated with saline. Paw withdrawal and threshold forces in response to tactile stimuli were determined using von Frey filaments. [Ca(2+)]i in C-fiber-like neurons derived from dorsal root ganglia was visualised using a calcium fluorescence probe...
October 6, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28993578/characterizations-of-oral-microbiota-in-elderly-nursing-home-residents-with-diabetes
#14
Taiji Ogawa, Mariko Honda-Ogawa, Kazunori Ikebe, Yumiko Notomi, Yoshiko Iwamoto, Itsuki Shirobayashi, Seiko Hata, Masahito Kibi, Shizuko Masayasu, Satoshi Sasaki, Shigetada Kawabata, Yoshinobu Maeda
Over 700 bacterial species have been detected in the oral cavity. Several studies have suggested that periodontitis is associated with systemic disorders such as diabetes mellitus, indicating a key role for oral microbiota in human health. However, the relationship between oral microbiota and diabetes has not been well clarified. Therefore, we conducted microbiome analysis of saliva samples obtained from 15 elderly residents (3 with type 2 diabetes mellitus [DM] and 12 without diabetes [non-DM]) at three different nursing homes, as well as 9 young healthy controls (HC)...
October 6, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28993577/effect-of-biochanin-a-versus-17%C3%AE-estradiol-in-rat-submandibular-salivary-gland
#15
Amira M Elsherbini, Mohammed A R Mohammed, Fatma M Ibrahim
The epigenetic nature of development mandates the observation of the effect of any exogenous substance, especially those with estrogenic activities, during critical phases of development. The submandibular gland (SMG) presents as a great model due to extensive postnatal development, and is known to be regulated and affected by hormones as well as growth factors. Herein, we observed postnatal development following low doses of Biochanin A (BCA) and 17β estradiol (E2) in rats. The pups were randomly divided into four groups: control, BCA, E2, and dimethyl sulfoxide (DMSO), and euthanized at the 6th, 15th, 30th, and 60th postnatal days (PND)...
October 6, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28855443/influences-of-differences-in-tray-design-and-impression-material-on-impression-pressure-at-edentulous-mandible
#16
Sayumi Inoue, Misao Kawara, Takashi Iida, Masatoshi Iwasaki, Osamu Komiyama
The aim of this study was to examine the effects of tray design and impression material on impression pressure in a clinical simulation model of an edentulous mandible. Two types of polyvinylsiloxane elastomer, one type of polyether elastomer, and one type of alginate were used. The three tray types had no relief, 0.36 mm of relief, or 1.4 mm of relief, with or without escape holes. Impression pressure was measured at the median alveolar crest, the bilateral alveolar crests corresponding to molars, and the bilateral buccal shelves...
August 31, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28855442/evaluating-the-statistical-methodology-of-randomized-trials-on-dentin-hypersensitivity-management
#17
Domenica Matranga, Federico Matera, Giuseppe Pizzo
The present study aimed to evaluate the characteristics and quality of statistical methodology used in clinical studies on dentin hypersensitivity management. An electronic search was performed for data published from 2009 to 2014 by using PubMed, Ovid/MEDLINE, and Cochrane Library databases. The primary search terms were used in combination. Eligibility criteria included randomized clinical trials that evaluated the efficacy of desensitizing agents in terms of reducing dentin hypersensitivity. A total of 40 studies were considered eligible for assessment of quality statistical methodology...
August 31, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28529281/the-expression-and-significance-of-the-hoxa7-gene-in-oral-squamous-cell-carcinoma
#18
Xiaofeng Duan, Hao Chen, Hong Ma, Yufeng Song
The aim of this study was to examine the expression of HOXA7 in oral squamous cell carcinoma (OSCC) and its correlation with clinical features. Sixty tissue specimens were collected from 60 OSCC patients who underwent surgical treatment at the Stomatological Hospital affiliated to Guizhou Medical University. Sixty specimens of normal oral tissue were also collected from 60 age- and sex-matched healthy controls. Expression of HOXA7 was assessed by real time polymerase chain reaction and immunohistochemistry...
May 19, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28529280/alternative-methods-to-visual-and-radiographic-examinations-for-approximal-caries-detection
#19
Naif Abogazalah, Masatoshi Ando
A shift in caries prevalence from occlusal surfaces to approximal surfaces has been demonstrated by epidemiological studies. Two recent meta-analyses evaluated the performance of visual examination and radiography for carious lesion detection, and reported low sensitivity but high specificity for early approximal caries detection. This suggests that the conventional methods have a higher risk of failing to detect approximal lesions. Consequently, in caries susceptible populations, there is a risk of progression of non-cavitated lesions to irreversible tooth destruction before the lesions are detected...
May 19, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28529279/comparing-the-occlusal-contact-area-of-individual-teeth-during-low-level-clenching
#20
Hideta Nishimori, Takashi Iida, Hirona Kamiyama, Yoshihiro Komoda, Ryoko Obara, Takashi Uchida, Misao Kawara, Osamu Komiyama
The aim of this study was to investigate the occlusal contact area (OCA) in individual teeth during low-level tooth clenching in 24 healthy participants. Before measurements were made, the 100% maximum voluntary contraction (MVC) was determined. At baseline, all subjects were instructed to close their mouth and touch the opposing teeth with minimal force. Occlusal contact was recorded during three jaw motor tasks (baseline, 20% MVC, and 40% MVC) using a blue silicone material. OCA thickness was determined from images and defined on five levels: level 1 (0-149 µm), level 2 (0-89 µm), level 3 (0-49 µm), level 4 (0-29 µm), and level 5 (0-4 µm)...
May 19, 2017: Journal of Oral Science
journal
journal
33015
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"