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Acta Odontologica Scandinavica

Bruno Ramos Chrcanovic, Ricardo Santiago Gomez
PURPOSE: To integrate the available data published on peripheral calcifying cystic odontogenic tumour (CCOT) and peripheral dentinogenic ghost cell tumour (DGCT) into a comprehensive analysis of its clinical and radiologic features. METHODS: An electronic search was undertaken in May, 2016. Eligibility criteria included publications reporting cases of peripheral CCOTs/DGCTs having enough clinical, radiological and histological information to confirm a definite diagnosis...
September 27, 2016: Acta Odontologica Scandinavica
Zornitsa Mihaylova, Vanyo Mitev, Pavel Stanimirov, Antonia Isaeva, Natalia Gateva, Nikolay Ishkitiev
OBJECTIVE: To describe and provide a comprehensive overview on the development, use and efficacy of autologous platelet concentrates in different in vitro and in vivo studies focusing on oral and maxillofacial pathologies. MATERIALS AND METHODS: Present work employs an extensive critical overview of the literature on the development and application of platelet concentrates. RESULTS: Platelet concentrates are innovative endogenous therapeutic agents which gained a lot of interest in different medical and dental disciplines due to their potential ability to stimulate and increase regeneration of soft and hard tissues...
September 27, 2016: Acta Odontologica Scandinavica
Omer Demirtas, Asım Dane, Eren Yildirim
OBJECTIVE: This study aimed to investigate the prevalence of pre-eruptive intracoronal resorption (PIR) using cone beam computed tomography (CBCT) and panoramic radiography and to compare the findings of these imaging techniques. METHODS: This retrospective study consisted of 733 patients who had at least one unerupted tooth and had undergoneimaging with both three-dimensional (3D) CBCT and two-dimensional (2D) panoramic radiography. In all the images, the number of teeth with intracoronal resorption, affected tooth type and number, and size and location of the PIR defects were recorded...
September 27, 2016: Acta Odontologica Scandinavica
Ingfrid Vaksdal Brattabø, Anette Christine Iversen, Anne Nordrehaug Åstrøm, Ragnhild Bjørknes
OBJECTIVE: Detecting and responding to child-maltreatment is a serious challenge and public health concern. In Norway, public dental health personnel (PDHP) have a mandatory obligation to report to child welfare services (CWS) if they suspect child-maltreatment. This study aimed to assess PDHP's frequency of reporting and failing to report to CWS and whether the frequencies varied according to personal, organizational and external characteristics. MATERIAL AND METHODS: An electronic questionnaire was sent to 1542 public dental hygienists and dentists in Norway, 1200 of who responded (77...
September 20, 2016: Acta Odontologica Scandinavica
Mohammad Reza Zarei, Mohammad Shabani, Goli Chamani, Fatemeh Abareghi, Moazamehosadat Razavinasab, Masoud Nazeri
OBJECTIVE: Headache is one of the most common disorders and has a heavy socioeconomic burden on both patients and society. Previous studies have demonstrated a high prevalence of psychological issues (e.g. depression and anxiety) in headache and especially migraine patients. The current study was designed to evaluate the prevalence of post-traumatic stress disorder (PTSD) symptomatology in chronic migraine (CM), chronic tension-type headache (CTTH) and healthy subjects. MATERIAL AND METHODS: CM and CTTH subjects were selected consecutively from patients referring to the department of neurology clinic at Shafa Hospital, Kerman University of Medical Sciences, Kerman, Iran...
September 20, 2016: Acta Odontologica Scandinavica
Ann Ingemansson Hultquist, Mats Bågesund
BACKGROUND: Early childhood caries (ECC) risk factors are suspected to vary between regions with different caries prevalence. AIM: Identify ECC risk factors for 1-year-olds predicting dentin caries at 3 years of age in a region with low caries prevalence. DESIGN: Caries risk was assessed by dental hygienist or dental assistant in 779 one-year-olds. The oral mutans streptococci (MS) score was performed from a tooth surface or (in pre-dentate children) from oral mucosa...
September 14, 2016: Acta Odontologica Scandinavica
Esben Boeskov Øzhayat, Peter Østergaard, Klaus Gotfredsen
OBJECTIVE: The aims of this study were to investigate and describe the Oral Health Related Quality of Life (OHRQoL) in a socially endangered group of people and to compare the OHRQoL to other patient groups. MATERIAL AND METHODS: About 294 socially endangered persons attending a volunteer clinic in Copenhagen Denmark filled in the OHIP-14 questionnaire. The group was compared in mean score and reported problems to a group of patients with tooth loss and about to have a removable dental prosthesis (RDP), a group with tooth loss about to have a fixed dental prosthesis (FDP) and a control group without tooth loss...
September 7, 2016: Acta Odontologica Scandinavica
Fernanda Ginani, Diego Moura Soares, Luciana Maria Rabêlo, Hugo Alexandre Oliveira Rocha, Lélia Batista de Souza, Carlos Augusto Galvão Barboza
OBJECTIVE: The aim of the present study was to evaluate the influence of a cryopreservation protocol on the proliferation and viability of stem cells from human exfoliated deciduous teeth (SHEDs). MATERIALS AND METHODS: Cells from the pulp of three deciduous teeth were isolated and characterized to confirm their stem cell nature. In second passage, part of the cells were submitted to normal conditions of cell culture (Control group), while part of the cells were maintained in 10% DMSO diluted in foetal bovine serum and submitted to the following cryopreservation protocol: 2 h at 4 °C, 18 h at -20 °C and then at -80 °C for two intervals (30 days - Cryopreservation I; and 180 days Cryopreservation II)...
August 31, 2016: Acta Odontologica Scandinavica
Alan Motta do Canto, Juliana Rodrigues Rozatto, Juliana Lucena Schussel, Ronaldo Rodrigues de Freitas, Bengt Hasséus, Paulo Henrique Braz-Silva
Ameloblastoma is an aggressive odontogenic tumour, which is locally invasive and highly recurrent. Studies show that ameloblastoma is a benign odontogenic neoplasia, being relatively rare and occasionally presenting behaviour of malignant lesions. In addition to these particularities, the histological diagnosis of ameloblastoma can be challenging when the tumour shows high rates of mitosis, absence of nuclear pleomorphism, basilar hyperplasia and neural invasion. In order to help in the diagnosis, prognosis and treatment of this neoplasia, some immunohistochemical markers were shown to be associated with tumoural epithelium...
August 30, 2016: Acta Odontologica Scandinavica
Nancy Birungi, Lars Thore Fadnes, Victoria Nankabirwa, James Kashugyera Tumwine, Anne Nordrehaug Åstrøm
OBJECTIVES: The first objective of this study is to examine the association between caretakers' caries experience and caries experience of their children. Second, to investigate whether children's and caretaker's caries experience is associated with oral health-related quality of life (OHRQoL) of children and their families. METHODS: This study is based on the prenatal recruitment interviews and the 5-year follow-up of 417 caretaker-children pairs from the Ugandan site of the PROMISE-EBF trial conducted in Mbale, Eastern Uganda...
August 30, 2016: Acta Odontologica Scandinavica
Lin Zhao, Juedan Li, Jiali Su, Malcolm L Snead, Jianping Ruan
OBJECTIVE: To investigate the possible biological mechanism of dental fluorosis at a molecular level. MATERIAL AND METHODS: Cultured LS8 were incubated with serum-free medium containing selected concentrations of NaF (0 ∼ 2 mM) for either 24 or 48 h. Subcellular microanatomy was characterized using TEM; meanwhile, selected biomolecules were analysed using various biochemistry techniques. Transient transfection was used to modulate a molecular pathway for apoptosis...
October 2016: Acta Odontologica Scandinavica
Momo Ide, Juri Saruta, Masahiro To, Yuko Yamamoto, Masahiro Sugimoto, Shinya Fuchida, Mina Yokoyama, Shigenari Kimoto, Keiichi Tsukinoki
OBJECTIVE: The antimicrobial substances in saliva contribute to the maintenance of both oral health and overall health of the body. Therefore, the associations among immunoglobulin A (IgA), lactoferrin and lysozyme flow rates in the saliva of children, and their relationships with the physical attributes and lifestyle factors of children, were examined. MATERIALS AND METHODS: Saliva was collected from 90 children who visited the Kanagawa Dental University Hospital Pediatric Dentistry, and questionnaires were completed by guardians...
October 2016: Acta Odontologica Scandinavica
Yan Zhang, Yanling Wang, Ying Ji
OBJECTIVE: Research on what family factors influence children's oral health behaviours (COHB) in developing countries is limited, and there have been no path analyses accounting for gender differences in these factors. Thus, our study evaluated gender differences in COHB including the influencing pathways of family factors in China. MATERIALS AND METHODS: Through multistage cluster sampling, 915 pairs of mothers and children from six public elementary schools in Beijing completed self-administered questionnaires regarding COHB, parents' modelling behaviours (PMB), parents' controlling behaviours (PCB), parents' oral health knowledge and attitudes (PKA), and children's oral health knowledge and attitudes (CKA)...
October 2016: Acta Odontologica Scandinavica
Tormod B Krüger, Bente B Herlofson, Maria A Landin, Janne E Reseland
OBJECTIVE: Due to accumulation in the bone matrix and a half-life of at least 10 years, it is important to understand the cellular impact of bisphosphonates (BPs). This study assessed the effects of alendronate (ALN) on human primary osteoblasts. MATERIAL AND METHODS: Osteoblasts were incubated with ALN (5, 20 and 100 μM), and both cells and cell culture media were harvested after d 1, 3, 7 or 14. Proliferation was evaluated by (3)H-thymidine incorporation and tetrazolium dye (MTT) colorimetric assay, and viability by the lactate dehydrogenase (LDH) activity in the medium...
October 2016: Acta Odontologica Scandinavica
Eylem Ayhan Alkan, Gülay Tüter, Ateş Parlar, Ayşegül Yücel, Bülent Kurtiş
OBJECTIVES: This study compares peri-implant crevicular fluid (PICF) prostaglandin E2 (PGE2) levels, clinical parameters and implant stability quotient (ISQ) values around implants placed in augmented extraction sockets. MATERIALS AND METHODS: The sockets (24 in total) were randomly augmented using either EMD or Bio-Oss Collagen. Implant placements were performed after three months of healing. ISQ readings were evaluated at three points: at the time of surgery, at the first month and at the third month...
October 2016: Acta Odontologica Scandinavica
Gülbahar Ustaoğlu, Esra Ercan, Mustafa Tunali
OBJECTIVE: We aimed to determine the clinical effects of titanium-prepared, platelet-rich fibrin (T-PRF) on human palatal mucosal wound healing (PMWH) and to identify its effect on time-dependent changes in palatal soft-tissue thickness (PSTT) in terms of histoconduction, which is a new concept. MATERIALS AND METHODS: Free gingival graft (FGG) donor sites were treated with T-PRF and compared with an untreated control group. The results of colour match and H2O2-bubbling tests for complete wound epithelization (CWE) were recorded on days 3, 7, 14 and 21...
October 2016: Acta Odontologica Scandinavica
Ayomi Dilhari, Manjula M Weerasekera, Anusha Siriwardhana, Oshanthi Maheshika, Chinthika Gunasekara, Sunil Karunathilaka, Ajith Nagahawatte, Neluka Fernando
OBJECTIVES: The study aimed to determine the proportion, known risk factors and etiology for Candida infection in leukoplakia lesions among patients with oral leukoplakia attending the Oral and Maxillofacial Clinic at a Tertiary Care Hospital in Sri Lanka. MATERIALS AND METHODS: Eighty clinically suspected oral leukoplakia patients were included. Two oral swabs each, from leukoplakia patients: one swab from the lesion and the other one from the contralateral unaffected corresponding area (as a control) were collected...
October 2016: Acta Odontologica Scandinavica
Pirkko-Liisa Tarvonen, Kirsi Sipilä, Yon Sil Ri, Jong Hyon Jang, Jong Hyok Kim, Anna L Suominen
OBJECTIVE: The study aimed to examine awareness of and compliance with healthy oral habits reported by children and their parents in Pyongyang, Democratic People's Republic of Korea (DPRK), after a preventive programme. MATERIALS AND METHODS: The data were collected in 2013 with self-completed, partly structured questionnaires from 1994 children aged 10 and 13 years and from 200 parents. Association between awareness of and compliance with healthy oral habits reported by the children and their parents was evaluated using Chi square tests and multivariate logistic regression analyses, children's oral health habits according to themselves and their parents were analysed using McNemar's test...
October 2016: Acta Odontologica Scandinavica
Balazs Jozsef Denes, Andrea Bresin, Stavros Kiliaridis
OBJECTIVES: Posterior bite-blocks are resin-based structures elevating the occlusion and creating intrusive force on the posterior teeth. Bite-blocks were applied to the molars of growing rats and a hard and soft diet was used to create altered functional masticatory forces. The aim of the present investigation was to study the effect of this appliance on the periodontal ligament space and alveolar bone thickness when combined with altered masticatory forces. MATERIAL AND METHODS: Fifty-two four-week-old rats were divided into two groups, hard and soft diet...
October 2016: Acta Odontologica Scandinavica
Denver F Marchiori, Garnet V Packota, Julia C Boughner
OBJECTIVE: To test in the maxilla and mandible for an association between stage of third-molar (M3) mineralization and space in the jaws for M3 eruption. Mineralization is hypothesized to be delayed not only for impacted M3s but also for M3s with eruption space less than their mesiodistal crown diameter. MATERIAL AND METHODS: Retrospective cone beam computed tomography (CBCT) scans of 37 females and 32 males aged 17-24 years, for a total sample of 197 upper and lower M3s, were used to assess the status of M3 eruption and measure the M3 crown diameter (CD) relative to the length of the retromolar space (RS)...
October 2016: Acta Odontologica Scandinavica
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