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Clinical Oral Investigations

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https://www.readbyqxmd.com/read/29779182/locator%C3%A2-versus-ceramic-electroplated-double-crown-attachments-a-prospective-study-on-the-intraindividual-comparison-of-implant-supported-mandibular-prostheses
#1
Silvia Brandt, Jan Brandt, Ali-Reza Ketabi, Hans-Christoph Lauer, Anna Kunzmann
OBJECTIVES: Implant-supported overdentures are an established dental treatment mode. The aim of this prospective study was and interindividual comparison of patient satisfaction with restorations retained by a prefabricated and thus inexpensive attachment system (Locator®) or with a technologically complex and thus expensive attachment system (ceramic/electroplated double crowns) with similar retentive performance. MATERIALS AND METHODS: Twelve patients received a Locator and a double-crown prosthesis in a crossover study for test periods of 3 months each...
May 19, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29777311/sufficiency-of-curing-in-high-viscosity-bulk-fill-resin-composites-with-enhanced-opacity
#2
Nicoleta Ilie
OBJECTIVES: The study aims analyzing if improved opacity in modern high-viscosity bulk-fill resin composites (BF-RBC) contradicts with the sufficiency of curing and to assess material's tolerance to less ideal curing conditions. MATERIALS AND METHODS: Simulated large cavities (10 × 6) mm were filled in one increment with three BF-RBCs (Filtek One, FO; Tetric Evo Ceram Bulk Fill, TEC-BF; SonicFill2, SF2). One central and two peripheral (4 mm apart from the center) micromechanical property line-profiles (HV, Vickers hardness; YHU , indentation modulus) were measured in 0...
May 18, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29777310/mechanical-sensitivity-and-psychological-factors-in-patients-with-burning-mouth-syndrome
#3
Mika Honda, Takashi Iida, Hirona Kamiyama, Manabu Masuda, Misao Kawara, Peter Svensson, Osamu Komiyama
OBJECTIVES: The aim of this study was to compare mechanical sensitivity on the tongue using quantitative sensory testing (QST) and psychological factors using the General Health Questionnaire (GHQ) between burning mouth syndrome (BMS) patients and healthy participants. MATERIALS AND METHODS: Participants comprised 20 female BMS patients (68.1 ± 7.4 years) and 20 healthy females (65.4 ± 4.6 years). Psychological factors were evaluated with GHQ. Tactile detection thresholds (TDT) and filament-prick pain detection thresholds (FPT) were used to evaluate mechanical sensitivity on the tongue in all participants...
May 18, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29770877/polishing-effects-and-wear-performance-of-chairside-cad-cam-materials
#4
Mike Matzinger, Sebastian Hahnel, Verena Preis, Martin Rosentritt
OBJECTIVES: To investigate the surface roughness of CAD/CAM materials immediately after milling and after different chairside and labside polishing procedures. A two-body wear test was performed to compare the different wear characteristics of the materials and the corresponding antagonists. MATERIALS AND METHODS: Specimens (n = 12 per series) from different CAD/CAM materials (three composites: Lava Ultimate, Cerasmart, BRILLIANT Crios; one hybrid ceramic: VITA Enamic; three ceramics: Celtra Duo, VITA Suprinity, IPS Emax...
May 16, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29766378/2-methacryloyloxyethyl-phosphorylcholine-mpc-polymer-suppresses-an-increase-of-oral-bacteria-a-single-blind-crossover-clinical-trial
#5
Natsumi Fujiwara, Hiromichi Yumoto, Koji Miyamoto, Katsuhiko Hirota, Hiromi Nakae, Saya Tanaka, Keiji Murakami, Yasusei Kudo, Kazumi Ozaki, Yoichiro Miyake
OBJECTIVES: The biocompatible 2-methacryloyloxyethyl phosphorylcholine (MPC)-polymers, which mimic a biomembrane, reduce protein adsorption and bacterial adhesion and inhibit cell attachment. The aim of this study is to clarify whether MPC-polymer can suppress the bacterial adherence in oral cavity by a crossover design. We also investigated the number of Fusobacterium nucleatum, which is the key bacterium forming dental plaque, in clinical samples. MATERIALS AND METHODS: This study was a randomized, placebo-controlled, single-blind, crossover study, with two treatment periods separated by a 2-week washout period...
May 16, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29756172/relationship-between-erosive-tooth-wear-and-beverage-consumption-among-a-group-of-schoolchildren-in-mexico-city
#6
Álvaro Edgar González-Aragón Pineda, Socorro Aída Borges-Yáñez, María Esther Irigoyen-Camacho, Adrian Lussi
OBJECTIVE: To assess the association between erosive tooth wear (ETW) and consumption of different kinds of beverages in a group of schoolchildren 11-14 years old in Mexico City. METHODS: Cross-sectional study in a sample of students (n = 512) in Mexico City. The Basic Erosive Wear Examination (BEWE) was used to quantify ETW. Beverage consumption (BC) was determined using a frequency questionnaire; beverages included pure water, natural fruit juices, milk, hot beverages, and soft drinks...
May 13, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29754197/efficacy-and-acceptance-of-professional-dental-cleaning-among-nursing-home-residents
#7
Anna Greta Barbe, Hannah Elisa Kottmann, Stefanie Hamacher, Sonja Henny Maria Derman, Michael Johannes Noack
OBJECTIVES: To determine the impact of general and oral health status of nursing home residents in Germany on efficacy and acceptance of professional dental cleaning performed by a dental nurse. MATERIALS AND METHODS: Participants (N = 41; mean age 83 ± 8 years) living in a nursing home were included. Personal and general health, oral health, oral hygiene habits, and needs were investigated. Individual acceptance regarding professional dental cleaning via different devices (scaler, interdental brushes, ultrasonic cleaning) was assessed, as was the efficacy of this method using after-cleaning indices...
May 13, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29752532/both-operator-and-heat-treatment-determine-the-centring-ability-of-reciproc%C3%A2-files-in-vitro
#8
N Hofmann
OBJECTIVES: To determine the shaping ability of reciprocating files without/with post-manufacturing heat treatment (Reciproc®/Reciproc blue®, VDW) when used by six operators of similar level of experience. MATERIALS AND METHODS: Plastic training blocs with curved root canals (5 mm radius, 55° angle) were mounted in a dental manikin. Each operator prepared six specimens with each instrument system using the file sizes R25, R40 and R50 consecutively. Specimens were photographed, and deviations from the centre of the canal were measured at intervals of 0...
May 12, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29748864/the-effect-of-intraosseous-local-anesthesia-of-4-articaine-with-1-100-000-epinephrine-on-pulpal-blood-flow-and-pulpal-anesthesia-of-mandibular-molars-and-canines
#9
Kadkao Vongsavan, Tshering Samdrup, Kanittha Kijsamanmith, Praphasri Rirattanapong, Noppakun Vongsavan
OBJECTIVES: The aim of this study was to determine the effect of intraosseous (IO) anesthesia with 4% articaine and 1:100,000 epinephrine on pulpal blood flow (PBF) and pulpal anesthesia of mandibular first molars and canines in human subjects. MATERIALS AND METHODS: Ten healthy volunteers with intact mandibular first molar and canine were given an osteocentral technique of IO injection using the Quick Sleeper 5 system and 4% articaine with 1:100,000 epinephrine at distal site of mandibular first molar...
May 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29744724/comparative-evaluation-of-three-obturation-techniques-in-primary-incisors-using-digital-intra-oral-receptor-and-c-b-c-t-an-in-vitro-study
#10
Jose E J Akhil, Babaji Prashant, K K Shashibushan
OBJECTIVES: Successful pulpectomy in primary teeth depends on quality of obturation. It can be evaluated using digital intra-oral receptor (D.I.O.R) and cone beam computed tomography (C.B.C.T). The purposes of this study were to compare 3 different obturation techniques such as lentulospiral, insulin syringe, and endodontic plugger in primary incisors and to evaluate its quality of obturation using D.I.O.R and C.B.C.T technique. MATERIALS AND METHODS: Thirty-three extracted primary incisors were biomechanically prepared and obturated with zinc oxide eugenol cement by 3 different obturation techniques...
May 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29744723/micro-ct-evaluation-of-different-final-irrigation-protocols-on-the-removal-of-hard-tissue-debris-from-isthmus-containing-mesial-root-of-mandibular-molars
#11
Emmanuel João Nogueira Leal Silva, Carla Rodrigues Carvalho, Felipe Gonçalves Belladonna, Marina Carvalho Prado, Ricardo Tadeu Lopes, Gustavo De-Deus, Edson Jorge Lima Moreira
OBJECTIVES: This study aimed to compare four final irrigation protocols (passive ultrasonic irrigation [PUI], EndoVac, Self-Adjusting File [SAF] and EasyClean) on the removal of accumulated hard-tissue debris (AHTD) from mesial canals of mandibular molars through microcomputed tomographic (micro-CT) analysis. MATERIALS AND METHODS: Forty mesial roots of mandibular molars presenting isthmuses type I or III were scanned in a micro-CT device and instrumented up to Reciproc R40 instrument...
May 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29744722/chronic-stress-and-temporalis-muscle-activity-in-tmd-patients-and-controls-during-sleep-a-pilot-study-in-females
#12
Marc Schmitter, Alexandra Kares-Vrincianu, Horst Kares, Carolin Malsch, Hans Jürgen Schindler
OBJECTIVES: The aim of this study was to assess the correlation between chronic stress and temporalis muscle activity during four nights. MATERIAL AND METHODS: Forty-four female subjects were recruited in five dental practices located in different areas of the federal state of Saarland, Germany (dental practice network in Saarland). The following inclusion criteria were used: female, aged between 18 and 65, no somatization or depression, and no pain medication, graded chronic pain status < 3...
May 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29744721/the-evaluation-of-mta-and-biodentine-as-a-pulpotomy-materials-for-carious-exposures-in-primary-teeth
#13
Burcu Nihan Çelik, Merve Safa Mutluay, Volkan Arıkan, Şaziye Sarı
OBJECTIVE: This study examined the effects of MTA and Biodentine on the clinical and radiographic success rates of pulpotomies performed on primary teeth with carious pulp exposures. MATERIALS AND METHODS: This study was conducted with 44 mandibular primary molars requiring vital pulpotomy. Carious dentin surrounding the exposure site was used as the inclusion criteria for all teeth, which were randomly divided into two groups according to pulpotomy material [MTA group (n = 24), Biodentine group (n = 20)]...
May 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29740720/predictors-of-dental-plaque-and-gingivitis-in-patients-receiving-integrated-dental-treatment-a-longitudinal-retrospective-study
#14
Bárbara Rocha Christofoli, Natália Caldeira Silva, João Augusto Peixoto Oliveira, Marilene Issa Fernandes, Alex Nogueira Haas
OBJECTIVES: The identification of predictors of supragingival biofilm accumulation may improve the results of therapeutic strategies for dental caries and periodontal diseases in general clinical practice. This study aimed to determine predictors of changes in visible plaque (VP) and gingival bleeding (GB) during integrated dental care. MATERIALS AND METHODS: A retrospective longitudinal study was conducted by a census of patients receiving integrated dental care in a general clinical practice ambulatory at the Federal University of Rio Grande do Sul (Brazil)...
May 9, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29737429/properties-of-calcium-silicate-monobasic-calcium-phosphate-materials-for-endodontics-containing-tantalum-pentoxide-and-zirconium-oxide
#15
Fausto Zamparini, Francesco Siboni, Carlo Prati, Paola Taddei, Maria Giovanna Gandolfi
OBJECTIVE: The aim of the study was to evaluate chemical-physical properties and apatite-forming ability of three premixed calcium silicate materials containing monobasic calcium phosphate (CaH4 P2 O8 ) bioceramic, tantalum pentoxide and zirconium oxide, recently marketed for endodontics (TotalFill BC-Sealer, BC-RRM-Paste, BC-RRM-Putty). MATERIALS AND METHODS: Microchemical and micromorphological analyses, radiopacity, initial and final setting times, calcium release and alkalising activity were tested...
May 8, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29737428/the-ratios-of-pro-inflammatory-to-anti-inflammatory-cytokines-in-the-serum-of-chronic-periodontitis-patients-with-and-without-type-2-diabetes-and-or-smoking-habit
#16
Tamires Szeremeske Miranda, Sílvia Lacerda Heluy, Daniele Ferreira Cruz, Hélio Doyle Pereira da Silva, Magda Feres, Luciene Cristina Figueiredo, Poliana Mendes Duarte
OBJECTIVE: This study assessed the impact of chronic periodontitis (CP) and CP associated with type 2 diabetes mellitus (DM) and/or smoking on the serum ratios of pro- to anti-inflammatory cytokines. MATERIALS AND METHODS: Subjects were assigned into one of the following groups: control (n = 25, non-diabetic non-smokers with no history of periodontitis), CP (n = 26, non-diabetic non-smokers with CP), DMCP (n = 30, non-smokers with DM and CP), SCP (n = 27, non-diabetic smokers with CP), and SDMCP (n = 22, smokers with type 2 DM and CP)...
May 8, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29736683/the-relationship-between-masticatory-ability-age-and-dental-and-prosthodontic-status-in-an-institutionalized-elderly-dentate-population-in-qingdao-china
#17
Qian Zhang, Dick J Witter, Ewald M Bronkhorst, Nico H J Creugers
OBJECTIVES: To identify relationships between masticatory ability and age, and dental and prosthodontic status amongst an institutionalized elderly dentate population in China. MATERIALS AND METHODS: A sample of 512 elders living in eight nursing homes in Qingdao was categorized based on a hierarchical dental functional classification system with and without tooth replacements. Masticatory disability scores (MDSs) were analyzed using multiple regression models with only age, and age and dentition variables for participants having ≥ 10 natural and those having < 10 natural teeth in each jaw...
May 7, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29730707/does-the-association-of-blood-derived-growth-factors-to-nanostructured-carbonated-hydroxyapatite-contributes-to-the-maxillary-sinus-floor-elevation-a-randomized-clinical-trial
#18
Carlos Fernando de Almeida Barros Mourão, Emanuelle Stellet Lourenço, Jhonathan Raphael Barros Nascimento, Rafael Coutinho Mello Machado, Alexandre Malta Rossi, Paulo Emílio Corrêa Leite, José Mauro Granjeiro, Gutemberg Gomes Alves, Mônica Diuana Calasans-Maia
OBJECTIVE: The combination of calcium phosphate with blood-derived growth factors (BDGF) has been widely used in bone regeneration procedures although its benefits are still unclear. The purpose of this study was to evaluate whether or not BDGF improves the efficacy of a modified carbonated calcium phosphate biomaterial in sinus floor augmentation. MATERIAL AND METHODS: Ten patients underwent 20 sinus floor augmentation procedures using nanostructured carbonated hydroxyapatite (cHA) microspheres alone or associated with BDGF in a randomized controlled clinical trial...
May 5, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29728860/treatment-outcome-of-bimaxillary-surgery-for-asymmetric-skeletal-class-ii-deformity
#19
Yun-Fang Chen, Yu-Fang Liao, Yin-An Chen, Yu-Ray Chen
OBJECTIVES: Facial asymmetry is one of the main concerns in patients with a dentofacial deformity. The aims of the study were to (1) evaluate the changes in facial asymmetry after bimaxillary surgery for asymmetric skeletal class II deformity and (2) compare preoperative and postoperative facial asymmetry of class II patients with normal controls. MATERIALS AND METHODS: The facial asymmetry was assessed for 30 adults (21 women and 9 men, mean age: 29.3 years) who consecutively underwent bimaxillary surgery for asymmetric skeletal class II deformity using cone-beam computed tomography before and at least 6 months after surgery...
May 4, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29725853/effect-of-implant-macrogeometry-on-peri-implant-healing-outcomes-a-randomized-clinical-trial
#20
Luiz Carlos do Carmo Filho, Fernanda Faot, Marina de Matos Madruga, Raissa Micaella Marcello-Machado, Dimorvan Bordin, Altair Antoninha Del Bel Cury
OBJECTIVES: This randomized split-mouth clinical trial investigated the influence of implant macrogeometry on bone properties and peri-implant health parameters during the healing process. MATERIAL AND METHODS: Ninety-nine implants were placed bilaterally in posterior mandibles of 23 patients that received at least four dental implant macrogeometries: standard geometry, Integra (IN) and three geometries inducing "healing chamber": Duo (D), Compact (C), and Infra (IF)...
May 3, 2018: Clinical Oral Investigations
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