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https://www.readbyqxmd.com/read/29340524/efficacy-of-removal-of-cariogenic-bacteria-and-carious-dentin-by-ablation-using-different-modes-of-er-yag-lasers
#1
A Baraba, L Kqiku, D Gabrić, Ž Verzak, K Hanscho, I Miletić
The primary objective of this in vitro study was to evaluate the efficiency of removal of cariogenic bacteria and carious dentin by ablation using two lasers: fluorescence-feedback controlled (FFC) Er:YAG laser and different pulses of Er:YAG laser based on variable square pulse technology (VSPt). The secondary objective was to measure the temperature during laser ablation of carious tissue. Seventy-two extracted human molars were used in this study. Sixty teeth with carious dentin were randomly divided into four experimental groups according to the treatment for caries removal: group 1: 400 µs (FFC group); group 2: super short pulse (SSP group, 50 µs pulse); group 3: medium short pulse (MSP group, 100 µs pulse); group 4: short pulse (SP group, 300 µs pulse) and one positive control group with no treatment...
January 11, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29336522/continued-root-maturation-despite-persistent-apical-periodontitis-of-immature-permanent-teeth-after-failed-regenerative-endodontic-therapy
#2
Louis M Lin, Sahng G Kim, Gabriela Martin, Bill Kahler
Three immature permanent teeth with pulp necrosis and apical periodontitis were treated with regenerative endodontic therapy (RET), which included root canal disinfection with sodium hypochlorite irrigation, intra-canal medication with calcium hydroxide paste, 17% EDTA rinse, induction of periapical bleeding into the canal, collagen matrix and MTA coronal seal, and composite resin restoration of access cavities. After different periods of follow-up, it was observed that continued root maturation, especially apical closure occurred despite persistent apical periodontitis of immature permanent teeth after failed RET...
January 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29335687/structure-of-the-bacterial-community-in-different-stages-of-early-childhood-caries
#3
Marcos Ximenes, Rafael Dutra de Armas, Thaisa Cezária Triches, Mariane Cardoso, Ricardo de Souza Vieira
PURPOSE: To characterise in vivo the structure of bacterial communities in decayed and sound primary teeth. MATERIALS AND METHODS: Samples of biofilms were collected from three groups of patients with complete and exclusively primary dentition (n = 45): G1: sound teeth (n = 15); G2: enamel lesion (n = 15); G3: dentin lesion (n = 15). DNA was extracted (CTAB 2%) from the biofilm, the partial 16S rRNA gene was amplified with Bacteria Universal Primers (BA338fGC - UN518r) and subjected to DGGE (denaturing gradient gel electrophoresis)...
January 15, 2018: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/29333323/alveolar-ridge-preservation-with-an-open-healing-approach-using-single-layer-or-double-layer-coverage-with-collagen-membranes
#4
Ho-Keun Choi, Hag-Yeon Cho, Sung-Jo Lee, In-Woo Cho, Hyun-Seung Shin, Ki-Tae Koo, Hyun-Chang Lim, Jung-Chul Park
Purpose: The aim of this prospective pilot study was to compare alveolar ridge preservation (ARP) procedures with open-healing approach using a single-layer and a double-layer coverage with collagen membranes using radiographic and clinical analyses. Methods: Eleven molars from 9 healthy patients requiring extraction of the maxillary or mandibular posterior teeth were included and allocated into 2 groups. After tooth extraction, deproteinized bovine bone mineral mixed with 10% collagen was grafted into the socket and covered either with a double-layer of resorbable non-cross-linked collagen membranes (DL group, n=6) or with a single-layer (SL group, n=5)...
December 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29327500/multiplex-polymerase-chain-reaction-detection-of-selected-bacterial-species-from-symptomatic-and-asymptomatic-non-vital-teeth-with-primary-endodontic-infections
#5
Smita Pattanshetty, Vijayalakshmi S Kotrashetti, Kishore Bhat, Ramakant S Nayak, Pradeep Somannavar, Madhu Pujar
AIM: The aim of the present study was to investigate the presence of selective anaerobic microorganisms in primary root canal infections of symptomatic and asymptomatic non-vital teeth with periapical pathosis using multiplex polymerase chain reaction. METHODS: A total of 100 root canal samples (50 from symptomatic and 50 from asymptomatic teeth) were obtained from patients with primary endodontic infections. DNA extracted from the samples was amplified by using specific primers for the 16S rRNA gene of each bacterium, and semiquantification was done to analyze the prevalence of microorganisms and their correlation to clinical features...
January 11, 2018: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/29326521/surgical-management-of-large-radicular-cyst-associated-with-mandibular-deciduous-molar-using-platelet-rich-fibrin-augmentation-a-rare-case-report
#6
Vijaya S Dhote, Nilima R Thosar, Sudhindra M Baliga, Priyanti Dharnadhikari, Poonam Bhatiya, Punit Fulzele
Radicular cysts arising from deciduous teeth are rare and usually cause a large bony defect. Autologous platelet-rich fibrin (PRF) is an easily available healing biomaterial in oral surgical defect with the new perspective of accelerated healing of a large bony defect. The present case is of unusually large radicular associated with neglected carious mandibular deciduous second molar in 10-year-old girl and its surgical management with PRF augmentation as a healing biomaterial in the bony defect. One-year follow-up showed uneventful healing and eruption of succedaneous tooth...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29322684/non-surgical-periodontal-therapy-reduces-salivary-adipocytokines-in-chronic-periodontitis-patients-with-and-without-obesity
#7
Nawwaf Al-Hamoudi, Tariq Abduljabbar, Sana Mirza, Zeyad H Al-Sowygh, Fahim Vohra, Fawad Javed, Zohaib Akram
AIM: The aim of the present study was to assess the effect of scaling and root planing (SRP) on periodontal parameters and whole salivary resistin and interleukin (IL)-6 levels in chronic periodontitis (CP) patients with and without obesity. METHODS: Participants were divided into two groups; group 1 included obese and non-obese individuals with CP; and group 2 included obese and non-obese individuals without CP. In both groups, bleeding on probing (BOP) and probing depth (PD) ≥4 mm and whole salivary resistin and IL-6 levels were measured using enzyme-linked immunosorbent assay at baseline and 6 months after SRP...
January 10, 2018: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/29322626/restorations-in-primary-teeth-a-systematic-review-on-survival-and-reasons-for-failures
#8
REVIEW
Luiz Alexandre Chisini, Kauê Collares, Mariana Gonzalez Cademartori, Luísa Jardim Corrêa de Oliveira, Marcus Cristian Muniz Conde, Flávio Fernando Demarco, Marcos Britto Corrêa
BACKGROUND: Several restorative materials with specific indications are used for filling cavities in primary teeth. AIM: To systematically review the literature in order to investigate the longevity of primary teeth restorations and the reasons for failure. DESIGN: Electronic databases were screened, and eligible studies were hand-searched to find longitudinal clinical studies evaluating the survival of restorations (class I, class II, and crown) placed with different materials in primary teeth with at least one year of follow-up...
January 10, 2018: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/29320886/contribution-of-preventive-methods-in-controlling-caries-among-saudi-primary-schoolchildren-a-population-based-cross-sectional-study
#9
Jehan AlHumaid, Zainah Salloot, Asim Al-Ansari, Maha El Tantawi, Yousef AlYousef, Fahad Al-Harbi
OBJECTIVE: This study assessed the association between caries preventive measures including regular dental checkups, twice a day tooth brushing using fluoridated toothpaste and pit and fissure sealants on one side and the presence of caries among primary schoolchildren in the Eastern Province of Saudi Arabia. MATERIALS AND METHODS: A cross-sectional study was conducted in 2016 including 1198, 6-12-year-old children from 13 randomly selected schools. The outcome variable was caries presence...
January 11, 2018: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29314214/oral-and-craniofacial-manifestations-in-a-hunter-syndrome-patient-with-hematopoietic-stem-cell-transplantation-a-case-report
#10
Rafaela de Oliveira Torres, Andréa Vaz Braga Pintor, Fábio Ribeiro Guedes, Liana Bastos Freitas-Fernandes, Anneliese Lopes Barth, Dafne Dain Gandelman Horovitz, Ivete Pomarico Ribeiro de Souza
We described herein the oral and craniofacial features of a 7-year-old boy, diagnosed in utero with mucopolysaccharidosis II (MPS II), who was treated with hematopoietic stem cell transplantation (HSCT) at 70 days of age. The main oral clinical findings were the following: macroglossia, posterior cross-bite, crowding, pointed cuspid teeth, delayed tooth eruption, retained primary teeth, and enamel hypoplasia. The image examination showed: retention eruption, posterior primary teeth with short roots, absence of some permanent teeth, and stretching of the stylohyoid processes bilaterally...
January 4, 2018: Special Care in Dentistry
https://www.readbyqxmd.com/read/29314144/bone-augmentation-followed-by-implant-surgery-in-the-edentulous-mandible-a-systematic-review
#11
REVIEW
R J de Groot, M A E M Oomens, T Forouzanfar, E A J M Schulten
INTRODUCTION: Long-standing loss of natural teeth in the mandible can lead to severe jaw atrophy and even mandibular fracture. There is no consensus on the best preprosthetic surgical treatment to reconstruct the atrophic edentulous mandible. The purpose of this review is to provide an overview of the existing literature and to give an evidence-based recommendation for bone grafting and future research. MATERIALS AND METHODS: This systematic review was conducted according to the PRISMA statement...
January 4, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29306776/histological-and-chemical-analyses-of-mesiodens-development-and-mineralization
#12
Awady Muhamad, Moskovitz Moti, Cohen Ornit, Zilberman Uri
OBJECTIVE: This study aimed to compare the developmental timing and mineralization quality of mesiodentes, i.e., supernumerary teeth located mainly in the midline of the maxilla between the central incisors, with the developmental timing and mineralization quality of permanent and primary central incisors. DESIGN: Sixteen mesiodentes, nine permanent and seven primary central incisors were collected. The location of the neonatal line was determined using a light microscope at 10× or 20× enlargements...
December 23, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29304003/a-high-resolution-proteomic-landscaping-of-primary-human-dental-stem-cells-identification-of-shed-and-pdlsc-specific-biomarkers
#13
Vasiliki Taraslia, Stefania Lymperi, Vasiliki Pantazopoulou, Athanasios K Anagnostopoulos, Issidora S Papassideri, Efthimia K Basdra, Marianna Bei, Evangelos G Kontakiotis, George Th Tsangaris, Dimitrios J Stravopodis, Ema Anastasiadou
Dental stem cells (DSCs) have emerged as a promising tool for basic research and clinical practice. A variety of adult stem cell (ASC) populations can be isolated from different areas within the dental tissue, which, due to their cellular and molecular characteristics, could give rise to different outcomes when used in potential applications. In this study, we performed a high-throughput molecular comparison of two primary human adult dental stem cell (hADSC) sub-populations: Stem Cells from Human Exfoliated Deciduous Teeth (SHEDs) and Periodontal Ligament Stem Cells (PDLSCs)...
January 5, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29302280/a-smart-rotary-technique-versus-conventional-pulpectomy-for-primary-teeth-a-randomized-controlled-clinical-study
#14
Negar Mokhtari, Alireza-Sarraf Shirazi, Masoumeh Ebrahimi
Background: Techniques with adequate accuracy of working length determination along with shorter duration of treatment in pulpectomy procedure seems to be essential in pediatric dentistry. The aim of the present study was to evaluate the accuracy of root canal length measurement with Root ZX II apex locator and rotary system in pulpectomy of primary teeth. Material and Methods: In this randomized control clinical trial complete pulpectomy was performed on 80 mandibular primary molars in 80, 4-6-year-old children...
November 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29301094/induced-post-traumatic-apexification-20-year-follow-up-and-morphological-study-after-new-fracture
#15
Federica Fonzar, Leopoldo Forner, Riccardo Fabian-Fonzar, Carmen Llena
Apexification is an endodontic technique used in immature necrotic teeth, the primary goal of which is to induce a calcified barrier in roots with open apices and to promote the continuation of apical root development. A 7-year-old patient with a coronal fracture in a maxillary central incisor was treated with an apexification technique using calcium hydroxide. The apical closure was obtained after one year, then a permanent root canal filling was performed. The tooth was monitored for a period of 20 years, up to when a trauma caused its extraction...
January 1, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29298937/an-early-chondrichthyan-and-the-evolutionary-assembly-of-a-shark-body-plan
#16
Michael I Coates, John A Finarelli, Ivan J Sansom, Plamen S Andreev, Katharine E Criswell, Kristen Tietjen, Mark L Rivers, Patrick J La Riviere
Although relationships among the major groups of living gnathostomes are well established, the relatedness of early jawed vertebrates to modern clades is intensely debated. Here, we provide a new description of Gladbachus, a Middle Devonian (Givetian approx. 385-million-year-old) stem chondrichthyan from Germany, and one of the very few early chondrichthyans in which substantial portions of the endoskeleton are preserved. Tomographic and histological techniques reveal new details of the gill skeleton, hyoid arch and jaws, neurocranium, cartilage, scales and teeth...
January 10, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29291254/supportive-periodontal-therapy-spt-for-maintaining-the-dentition-in-adults-treated-for-periodontitis
#17
REVIEW
Carolina Manresa, Elena C Sanz-Miralles, Joshua Twigg, Manuel Bravo
BACKGROUND: Periodontitis is a bacterially-induced, chronic inflammatory disease that destroys the connective tissues and bone that support teeth. Active periodontal treatment aims to reduce the inflammatory response, primarily through eradication of bacterial deposits. Following completion of treatment and arrest of inflammation, supportive periodontal therapy (SPT) is employed to reduce the probability of re-infection and progression of the disease; to maintain teeth without pain, excessive mobility or persistent infection in the long term, and to prevent related oral diseases...
January 1, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29290183/comparison-of-retrograde-primary-and-secondary-bonding-materials-with-tooth-substance
#18
Tabinda Nawaz Khan, Syed Yawar Ali Abidi
OBJECTIVE: To compare the microleakage of MTA (mineral trioxide aggregate) and resin-modified GIC (glass ionomer vitremer) as retrograde endodontic material. STUDY DESIGN: Experimental study. PLACE AND DURATION OF STUDY: Operative Department of DIIKIOHS (DUHS) and NED University, Karachi, from February to June 2014. METHODOLOGY: Forty human anterior teeth were divided into four groups. Each tooth was endodontically treated...
January 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29289729/replacing-amalgam-with-a-high-viscosity-glass-ionomer-in-restoring-primary-teeth-a-cost-effectiveness-study-in-brasilia-brazil
#19
A Goldman, J E Frencken, R G De Amorim, S C Leal
OBJECTIVES: When planning primary oral health care services the cost implications of adopting new intervention practices are important, especially in resource-strapped countries. Although on a trajectory to be phased-out, amalgam remains the standard of care in many countries. METHODS: Adopting a government perspective, this study compared the costs of performing amalgam and ART/high-viscosity glass-ionomer cement (HVGIC) restorations and the consequences of failed restorations over 3 years in suburban Brasilia, Brazil...
December 28, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29289726/caries-arrest-by-topical-fluorides-in-preschool-children-30-month-results
#20
D Duangthip, M C M Wong, C H Chu, E C M Lo
OBJECTIVE: To compare the effectiveness of three applications of silver diammine fluoride (SDF) solution at yearly interval and three applications of SDF solution or sodium fluoride (NaF) varnish at weekly interval at baseline in arresting active caries in the primary teeth of preschool children. METHODS: Children aged 3-4 years (n = 371) who had at least one active caries lesion (ICDAS codes 3-6) in their primary teeth were randomly allocated into three groups: Group 1 - annual application of 30% SDF solution; Group 2 - three applications of 30% SDF at weekly intervals; and Group 3 - three applications of 5% NaF varnish at weekly intervals...
December 28, 2017: Journal of Dentistry
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