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Clinical Oral Investigations

Martina Schriber, Michael M Bornstein, Valerie G A Suter
OBJECTIVES: To compare the dimensions of maxillary sinuses in dentate and edentulous patients using cone beam computed tomography (CBCT) scans and a customised software program. MATERIALS AND METHODS: This study comprised CBCTs of 50 dentate and 50 edentulous posterior maxillae. The observers drew two planar curves in all included sinuses in the frontal, sagittal and axial planes of the respective CBCT scans. The volume (mm3 ), surface (mm2 ) and maximum diameter (mm) of the sinuses were calculated using a custom-made software program...
July 17, 2018: Clinical Oral Investigations
Anna Lena Sundell, Agneta Marcusson
OBJECTIVES: The objectives of this study were to assess orofacial profiles in 5- and 10-year-old children with cleft lip and/or palate (CL/P) compared to controls and to estimate a possible association between orofacial dysfunction and caries frequency. MATERIALS AND METHODS: A total of 133 children with CL/P (77 5-year-olds and 56 10-year-olds) and 308 controls (142 5-year-olds and 166 10-year-olds) were included in the study. Orofacial function was evaluated with Nordic Orofacial Test-Screening (NOT-S), and caries were scored according to the International Caries Detection and Assessment System (ICDAS)...
July 16, 2018: Clinical Oral Investigations
Dorota Olczak-Kowalczyk, Emil Korporowicz, Dariusz Gozdowski, Agnieszka Lecka-Ambroziak, Mieczysław Szalecki
OBJECTIVE: To assess the significance of changes in the saliva in the etiology of gingivitis and tooth wear in children and adolescents with Prader-Willi syndrome (PWS). MATERIALS AND METHODS: The study included 80 (2.8-18 years old; 39 girls and 41 boys): 40 in PWS group (mean age 8.0 ± 4.24 years) and 40 in control group (mean age 7.9 ± 4.12 years). General condition, oral para-functional habits, tooth wear (modified TWI), oral hygiene and gingival status (Plaque Index (PLI) and Gingival Index (GI)), localization of gingivitis, and salivary characteristics were assessed...
July 14, 2018: Clinical Oral Investigations
Wilana da Silva Moura, Kelly Chiqueto, Gustavo Menezes Pithon, Leniana Santos Neves, Renata Castro, José Fernando Castanha Henriques
INTRODUCTION: Due to potential impact of the effects of ionizing radiation used in medical and dental examinations on public health in recent years, many studies are being conducted to quantify the radiation dose values, evaluate scanners, and indicate factors that could influence or reduce radiation doses. OBJECTIVES: This study aimed to evaluate, by a systematic review, the factors that influence the effective radiation dose associated with cone beam computed tomography and respective effects, and compared the effective dose of different cone beam computed tomography (CBCT) scanners with similar exposure parameters...
July 13, 2018: Clinical Oral Investigations
Hugo Almeida Varela, Júlio C M Souza, Rubens M Nascimento, Raimundo F Araújo, Roseane C Vasconcelos, Rômulo S Cavalcante, Paulo M Guedes, Aurigena A Araújo
OBJECTIVES: The aim of the present study was to evaluate the blood cell content, morphological aspects, gene expression of type I collagen, and release of growth factors on an injectable platelet rich fibrin (i-PRF). MATERIALS AND METHODS: Blood samples were collected from 15 volunteers to prepare i-PRF samples. Peripheral blood was used as a control group. Blood clot and i-PRF samples were cultured for 10 days. The supernatant of the samples was collected for ELISA immunoassay quantification of PDGF and VEGF growth factors over periods of 1, 8, 24, 72, and 240 h...
July 12, 2018: Clinical Oral Investigations
Matthew Moberg, John Brewster, John Nicholson, Howard Roberts
OBJECTIVES: The objective of this study was to investigate selected physical properties of nine contemporary and recently marketed glass ionomer cement (GIC) and four resin-modified glass ionomer cement (RMGI) dental restorative materials. MATERIALS AND METHODS: Specimens (n = 12) were fabricated for fracture toughness and flexure strength using standardized, stainless steel molds. Testing was completed on a universal testing machine until failure. Knoop hardness was obtained using failed fracture toughness specimens on a microhardness tester, while both flexural modulus and flexural toughness was obtained by analysis of the flexure strength results data...
July 11, 2018: Clinical Oral Investigations
N Abogazalah, G J Eckert, Masatoshi Ando
OBJECTIVES: The objective was to evaluate a visible-light-transillumination (using Digital Imaging Fiber-Optic Transillumination machine: DIFOTI) method using occlusal view (DIFOTI-occl), axial view (buccal and lingual: DIFOTI-axial), and combination of all views (DIFOTI-all) for detecting non-cavitated approximal caries and to compare its performance to visual examination (International Caries Detection and Assessment System: ICDAS). MATERIALS AND METHODS: Thirty extracted human premolars were selected (sound to lesions into the outer one-third of the dentine) based on micro-computed tomography (μ-CT)...
July 10, 2018: Clinical Oral Investigations
Katri Croft, Sari Kervanto-Seppälä, Lina Stangvaltaite, Eero Kerosuo
OBJECTIVES: To find out which management methods are preferred by dentists in Finland for a deep carious lesion or a pulp exposed during carious tissue removal in adult patients. MATERIALS AND METHODS: An electronic questionnaire consisting of 25 questions was sent to 1000 randomly sampled dentists in Finland. The response rate was 32%. RESULTS: Less invasive excavation strategies (stepwise or selective removal) were preferred by 64% for an asymptomatic deep lesion, while 34% chose nonselective removal to hard dentine...
July 9, 2018: Clinical Oral Investigations
Ane Poly, Fernando Marques, Sandra R Fidel, Antonio Fernando Monnerat, Luciana M Sassone
OBJECTIVES: This study aimed to quantitatively assess the ability of two single-step restorative materials to avoid crown darkening caused by the use of minocycline as an intracanal medicament. MATERIALS AND METHODS: After coronal access and instrumentation, 120 maxillary incisors were divided into four groups (n = 30). Two experimental groups according to the restorative material applied to the inner walls of the access cavity: OB, OptiBond All-In-One + minocycline intracanal paste; U200, RelyX U200 + minocycline intracanal paste...
July 9, 2018: Clinical Oral Investigations
Deborah Queiroz Freitas, Taruska Ventorini Vasconcelos, Marcel Noujeim
OBJECTIVES: To evaluate the influence of artifacts produced by zirconium implant on the diagnosis of vertical root fracture (VRF) in teeth close and distant to the implant in cone beam computed tomography (CBCT) images. We also determined if kilovoltage (kVp) and metal artifact reduction (MAR) tool could influence this diagnosis. MATERIALS AND METHODS: Twenty single-root teeth were divided in control and fractured groups (n = 10). The teeth were randomly positioned in the first and second and right and left pre-molar alveoli of a dry human mandible...
July 8, 2018: Clinical Oral Investigations
Thais Cristina Pereira, Layla Reginna da Silva Munhoz Vasconcelos, Márcia Sirlene Zardin Graeff, Maria Cristina Marcucci Ribeiro, Marco Antonio Hungaro Duarte, Flaviana Bombarda de Andrade
OBJECTIVE: This in vitro study compared the penetration, pH, calcium ion release, solubility, and intradentinal decontamination capacity of calcium hydroxide (CH) pastes with different vehicles and additives. MATERIALS AND METHODS: Infected standard bovine dentine contaminated with Enterococcus faecalis were treated with propolis extract, chlorhexidine, and camphorated paramonochlorophenol (CPMC) loaded in CH paste for the bacterial viability evaluation made by confocal laser scanning microscopy (CLSM) and microbiological culture...
July 7, 2018: Clinical Oral Investigations
Wladimir Gushiken de Campos, Camila Vieira Esteves, Lígia Gonzaga Fernandes, Carina Domaneschi, Celso Augusto Lemos Júnior
OBJECTIVE: The aim of this systematic review is to summarize the results of all published studies on symptomatic benign migratory glossitis and evaluate the best available treatment. METHODS: We searched the Cochrane Library, EMBASE, LILACS, PubMed, Scopus, and Web of Science for articles published up to September 2017, with no time restriction. We considered only articles published in English that evaluated the treatment of symptomatic benign migratory glossitis in children and adults...
July 7, 2018: Clinical Oral Investigations
Tiago Silva da Fonseca, Guilherme F Silva, Juliane M Guerreiro-Tanomaru, Mateus Machado Delfino, Estela Sasso-Cerri, Mário Tanomaru-Filho, Paulo Sérgio Cerri
OBJECTIVES: Evaluate the tissue reaction of periodontium subjacent to furcation perforations in rat molars sealed with Biodentine or mineral trioxide aggregate (MTA). MATERIALS AND METHODS: The pulp chamber floor of right upper first molars of 60 rats was perforated and filled with Biodentine, MTA, or cotton pellet (sham); the left first molars were used as control. After 7, 15, 30, and 60 days, maxillary fragments were processed for paraffin-embedding. The periodontal space (PS), volume density of inflammatory cells (VvIC) and fibroblasts (VvFb), number of osteoclasts, and collagen content were obtained...
July 7, 2018: Clinical Oral Investigations
Carolin Walther, Hendrik Meyer-Lueckel, Georg Conrads, Marcella Esteves-Oliveira, Karsten Henne
OBJECTIVES: The present study aims at correlating the relative bacterial activity with the H+ concentration and the ldh expression of caries-associated bacteria in co-cultures. MATERIALS AND METHODS: Well plates were prepared with BHI medium and cultures of Lactobacillus paracasei and Fusobacterium nucleatum. Bacterial growth at 37 °C was measured using a microplate-photometer before and after adding sucrose to the samples. Samples of co-cultures (n = 12) and single-species cultures (n = 3) were taken and pH was assessed...
July 6, 2018: Clinical Oral Investigations
Stan Jagodin, Martin Sasse, Sandra Freitag-Wolf, Matthias Kern
OBJECTIVES: The purpose of this laboratory study was to evaluate the influence of the attachment design and material on the retention of resin-bonded attachments (RBAs) before and after dynamic loading. MATERIALS AND METHODS: Forty-eight caries-free human premolars were prepared for RBAs fabricated either from a CoCr alloy or from zirconia ceramic. Specimens were divided into three groups (n = 16 each). Two groups had a standard attachment design for alloys (group M made from a CoCr alloy and group Z1 made from zirconia ceramic)...
July 6, 2018: Clinical Oral Investigations
Retief Wessels, Sam De Roose, Thomas De Bruyckere, Aryan Eghbali, Wolfgang Jacquet, Tim De Rouck, Jan Cosyn
OBJECTIVES: A critical and uniform assessment of mucosal scarring following oral surgery is needed to refine surgical decision-making. For that purpose, the Mucosal Scarring Index (MSI) was developed. MATERIALS AND METHODS: The MSI is a composite index based on five parameters: width, height/contour, color, suture marks, and overall appearance. Each parameter is assessed with a 0-1-2 score, yielding a MSI score ranging from 0 (no scar) to 10 (most extreme scar)...
July 3, 2018: Clinical Oral Investigations
Manuel Toledano, Inmaculada Cabello, Estrella Osorio, Fátima S Aguilera, Antonio Luis Medina-Castillo, Manuel Toledano-Osorio, Raquel Osorio
OBJECTIVE: Nanogels designing for effective treatment of eroded cervical dentin lesions. MATERIALS AND METHODS: Polymethylmetacrylate-based nanoparticles (NPs) were doxycycline (D), calcium, or zinc loaded. They were applied on eroded cervical dentin. Treated surfaces were characterized morphologically by atomic force and scanning electron microscopy, mechanically probed by a nanoindenter to test nanohardness and Young's modulus, and chemically analyzed by Raman spectroscopy at 24 h and 7 days of storage...
July 3, 2018: Clinical Oral Investigations
M Mínguez, O K Ennibi, P Perdiguero, L Lakhdar, L Abdellaoui, M C Sánchez, M Sanz, David Herrera
BACKGROUND AND OBJECTIVE: Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis have been frequently isolated in periodontitis patients in Morocco. Its persistence after the subgingival debridement of the biofilm has been correlated with worse clinical outcomes. The aim of this study was to evaluate the antimicrobial susceptibilities of A. actinomycetemcomitans and P. gingivalis, to amoxicillin, amoxicillin plus clavulanate, metronidazole, and azithromycin. In addition, microbiological profiles of patients harbouring A...
July 2, 2018: Clinical Oral Investigations
Viveca Wallin Bengtsson, G Rutger Persson, Johan Berglund, Stefan Renvert
OBJECTIVE: To assess if carotid calcifications detected in panoramic radiographs are associated with future events of stroke, and/or ischemic heart diseases over 10-13 years in individuals between 60 and 96 years. MATERIALS AND METHODS: Baseline (2001-2004) panoramic radiographs were assessed for evidence of carotid calcifications from individuals with no previous history of stroke and/or ischemic heart diseases. A radiopaque nodular mass adjacent to the cervical vertebrae, at or below the intervertebral space C3-C4, was interpreted as carotid calcification...
July 2, 2018: Clinical Oral Investigations
Noriyuki Narita, Kazunobu Kamiya, Yasuhide Makiyama, Sunao Iwaki, Osamu Komiyama, Tomohiro Ishii, Hiroyuki Wake
OBJECTIVES: Neuropsychological associations can be considerable in occlusal dysesthesia (OD) patients who routinely complain of persistent occlusal discomfort, and somatization effects in the superior medial prefrontal cortex and the temporal and parietal regions are also present. However, the relationship between physical activity, i.e., chewing, prefrontal cognitive demand, and psychiatric states in OD patients remains unclear. We investigated this relationship in this study. MATERIALS AND METHODS: OD patients (n = 15) and healthy control (n = 15; HC) subjects were enrolled in this study...
July 2, 2018: Clinical Oral Investigations
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