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https://www.readbyqxmd.com/read/28214370/the-effect-of-pre-operative-submucosal-administration-of-tramadol-on-the-success-rate-of-inferior-alveolar-nerve-blocks-on-mandibular-molars-with-acute-irreversible-pulpitis-a-randomized-double-blind-clinical-trial
#1
A De Pedro-Muñoz, J Mena-Álvarez
AIM: This randomized, double-blind, placebo controlled, clinical trial was designed to improve the success of inferior alveolar nerve blocks (IANB) in mandibular molars with symptomatic irreversible pulpitis (SIP) by means of pre-operative submucosal administration of 50mg tramadol. METHODOLOGY: Forty-two patients with a mandibular molar diagnosed with symptomatic irreversible pulpitis took part in the trial. Patients were assigned randomly to one of two groups: tramadol group (n=21), who received 50mg tramadol in 1mL by mandibular infiltration, and a placebo group (n=21), who received 1 mL of normal saline administered to the affected tooth by the same means...
February 18, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28210443/evaluation-of-the-effect-of-adding-micro-hydroxyapatite-and-nano-hydroxyapatite-on-the-microleakage-of-conventional-and-resin-modified-glass-ionomer-cl-v-restorations
#2
Farahnaz Sharafeddin, Negar Feizi
BACKGROUND: Pulpal reaction to restorative materials depends on marginal microleakage, which is a dynamic phenomenon that allows bacteria and fluids to traverse across the tooth-restoration interface. Glass-ionomer cement (GIC) exhibits low microleakage due to direct bonding to tooth structures. Hydroxyapatite (HAP) based on the similarity with tooth structure may decrease the microleakage. The aim of this in vitro study was to evaluate marginal microleakage of a mixture of conventional and resin-modified glass-ionomer (RMGI) with micro- and nano-HAP...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28208995/a-comparative-analysis-of-caries-inhibitory-effect-of-remineralizing-agents-on-human-enamel-treated-with-er-yag-laser-an-in-vitro-atomic-emission-spectrometry-analysis
#3
Aswin Saseendran Nair, R Krishna Kumar, Sunil Thomas Philip, Syed Shaheed Ahameed, Sairaj Punnathara, Joby Peter
INTRODUCTION: The tug of war to maintain tooth integrity is dependent on a ratio between demineralization and remineralization. Hence, demineralization should be retarded and remineralization should be enhanced to maintain a natural equilibrium in the oral cavity. AIM: To compare in-vitro acid resistance of human enamel when using Casein Phosphopeptides Amorphous Calcium Phosphate (CPP-ACP) [GC Tooth mousse] cream, Casein Phosphopeptide Amorphous Calcium Fluoride Phosphate (CPP-ACFP) [GC Tooth mousse plus] cream, Er:YAG laser alone, combination of CPP-ACP with Er:YAG laser, CPP-ACFP with Er:YAG laser...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203028/-unerupted-first-deciduous-molar-located-higher-to-the-first-premolar-a-case-report
#4
Y Zhan, H Liu
Tooth eruption is defined as the movement of a tooth from its site of development within the alveolar process to its functional position in the oral cavity. The process of tooth eruption can be divided into different phases: pre-eruptive bone stage, alveolar bone stage, mucosal stage, preocclusal stage, occlusal stage and maturation stage. Any disturbance in these phases can lead to eruptive anomalies. The incidence of unerupted teeth is usually higher among permanent teeth than among deciduous ones. Of the primary teeth reported as unerupted, second deciduous molars are the teeth most frequently involved, followed by primary central incisors...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28203009/-digital-imaging-fiber-optic-transillumination-difoti-method-for-determining-the-depth-of-cavity
#5
J L Yu, R T Tang, L Feng, Y M Dong
OBJECTIVE: To analyze the accuracy of the digital imaging fiber optic transillumination (DIFOTI) on diagnosis of caries lesions depth using DIAGNOcam system. METHODS: This experiment adopted self-matching design. Seventy-four extracted teeth (molar: sixty-six, premolar: eight) with one caries lesions in proximity which were not damaged in surface marginal ridge were selected. Dental calculus and dental stains were removed from the extracted teeth for standby application...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28196330/decellularized-human-dental-pulp-as-a-scaffold-for-regenerative-endodontics
#6
J S Song, K Takimoto, M Jeon, J Vadakekalam, N B Ruparel, A Diogenes
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28194364/comparison-of-two-different-methods-of-detecting-residual-caries
#7
Uzay Koç Vural, Zeynep Bilge Kütük, Esra Ergin, Filiz Yalçın Çakır, Sevil Gürgan
OBJECTIVES: The aim of this study was to investigate the ability of the fluorescence-aided caries excavation (FACE) device to detect residual caries by comparing conventional methods in vivo. MATERIALS AND METHODS: A total of 301 females and 202 males with carious teeth participated in this study. The cavity preparations were done by grade 4 (Group 1, 154 teeth), grade 5 (Group 2, 176 teeth), and postgraduate (Group 3, 173 teeth) students. After caries excavation using a handpiece and hand instruments, the presence of residual caries was evaluated by 2 investigators who were previously calibrated for visual-tactile assessment with and without magnifying glasses and trained in the use of a FACE device...
February 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28191679/a-systematic-review-of-the-survival-and-complication-rates-of-resin-bonded-fixed-dental-prostheses-after-a-mean-observation-period-of-at-least-5%C3%A2-years
#8
REVIEW
Daniel S Thoma, Irena Sailer, Alexis Ioannidis, Marcel Zwahlen, Nikolay Makarov, Bjarni E Pjetursson
OBJECTIVES: The objective of this systematic review was to assess the 5-year and 10-year survival of resin-bonded fixed dental prostheses (RBBs) and to describe the incidence of technical and biological complications. MATERIALS AND METHODS: An electronic MEDLINE search complemented by manual searching was conducted to identify prospective and retrospective cohort studies and case series on RBBs with a mean follow-up time of at least 5 years. Patients had to have been examined clinically at the follow-up visit...
February 13, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28183665/degradation-in-the-fatigue-crack-growth-resistance-of-human-dentin-by-lactic-acid
#9
Santiago Orrego, Huakun Xu, Dwayne Arola
The oral cavity frequently undergoes localized changes in chemistry and level of acidity, which threatens the integrity of the restorative material and supporting hard tissue. The focus of this study was to evaluate the changes in fatigue crack growth resistance of dentin and toughening mechanisms caused by lactic acid exposure. Compact tension specimens of human dentin were prepared from unrestored molars and subjected to Mode I opening mode cyclic loads. Fatigue crack growth was achieved in samples from mid- and outer-coronal dentin immersed in either a lactic acid solution or neutral conditions...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28179936/vital-pulp-therapy-with-calcium-silicate-cements-report-of-two-cases
#10
Hengameh Ashraf, Afsaneh Rahmati, Neda Amini
This article describes successful use of calcium-enriched mixture (CEM) cement and Biodentine in apexogenesis treatment in two 8-year-old patients, one with immature permanent molar diagnosed primarily with irreversible pulpitis and the other with partially vital maxillary central incisor. After access cavity preparation, partial pulpotomy in molar and full pulpotomy in central was performed, and the remaining pulps was capped with either Biodentine or CEM cement, in each tooth. The crowns were restored with composite filling material at the following visit...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179916/postoperative-pain-following-pulpotomy-of-primary-molars-with-two-biomaterials-a-randomized-split-mouth-clinical-trial
#11
Leili Shafie, Hamide Barghi, Masoud Parirokh, Hamed Ebrahimnejad, Nozar Nakhae, Sara Esmaili
INTRODUCTION: The aim of this randomized clinical trial split-mouth study was to compare the postoperative pain following use of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement as pulpotomy agents in carious primary molars. METHODS AND MATERIALS: Forty-seven children aged between 6-10 years old were enrolled in this study. Each child had two cariously involved primary molar in need of pulpotomy. After caries removal and preparing access cavity in one of the carious teeth, either MTA or CEM cement was randomly used as the pulpotomy agent, while the other cariously involved primary molar tooth was capped with the other material in a separate visit...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28178323/non-invasive-evaluation-of-facial-crestal-bone-with-ultrasonography
#12
Hsun-Liang Chan, Khaled Sinjab, Ming-Pang Chung, Yi-Chen Chiang, Hom-Lay Wang, William V Giannobile, Oliver D Kripfgans
PURPOSE: Facial crestal bone level and dimension determine function and esthetics of dentition and dental implants. We have previously demonstrated that ultrasound can identify bony and soft tissue structures in the oral cavity. The aim of this study is to evaluate the accuracy of using ultrasound to measure facial crestal bone level and thickness. MATERIALS AND METHODS: A commercially available medical ultrasound scanner, paired with a 14 MHz imaging probe was used to scan dental and periodontal tissues at the mid-facial site of each tooth on 6 fresh cadavers...
2017: PloS One
https://www.readbyqxmd.com/read/28176213/development-of-a-new-dissolution-test-method-for-soft-chewable-dosage-forms
#13
Carmen Stomberg, Venkata-Rangarao Kanikanti, Hans-Jürgen Hamann, Peter Kleinebudde
Soft chewable dosage forms are a new approach to improve the compliance of medication for special patient populations. Based on their texture, they are chewed several times before they get swallowed. A suitable dissolution method based on in vivo chewing data was developed. The method covers parts of dissolution within the oral cavity (simulation of chewing) as well as the dissolution of the swallowed bolus within the gastrointestinal tract. Chewing was simulated by the help of a steel tooth assembled to a texture analyzer and wedge gliding on an inclined plane, imitating the occlusal glide...
February 7, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28174361/prevalence-and-pattern-of-mandibular-third-molar-impaction-in-eritrean-population-a-retrospective-study
#14
V Raj Kumar, Priya Yadav, Efrem Kahsu, Farhana Girkar, Rajnish Chakraborty
INTRODUCTION: The most commonly impacted tooth in the oral cavity is the mandibular third molar. Various etiologic factors have been suggested for impacted mandibular third molars. The pattern and prevalence of impacted mandibular third molars vary with different population and region. This study throws light on the prevalence and pattern of impacted mandibular third molars in Eritrea, East Africa. This is the first reported study regarding the same from Eritrea. AIM: To assess the prevalence and pattern of impacted mandibu-lar third molars in the population of Eritrea, East Africa by conducting a retrospective study from January 2009 to January 2014...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28168759/periodontal-disease-tooth-loss-and-dementia-is-there-a-link-a-systematic-review
#15
REVIEW
Pallavi P Tonsekar, Shuying S Jiang, Gang Yue
BACKGROUND: It has been suggested that dementia is caused by neuronal damage due to chronic inflammation from peripheral sources such as the oral cavity in periodontal disease. OBJECTIVE: The aim of our review was to assess the risk of dementia or cognitive impairment associated with chronic periodontitis and multiple tooth loss. MATERIALS AND METHODS: An extensive search of electronic databases of articles on the relation between periodontitis, tooth loss and dementia published on or before April 2016 was conducted...
February 7, 2017: Gerodontology
https://www.readbyqxmd.com/read/28166536/ancestral-morphology-of-crown-group-molluscs-revealed-by-a-new-ordovician-stem-aculiferan
#16
Jakob Vinther, Luke Parry, Derek E G Briggs, Peter Van Roy
Exceptionally preserved fossils provide crucial insights into extinct body plans and organismal evolution. Molluscs, one of the most disparate animal phyla, radiated rapidly during the early Cambrian period (approximately 535-520 million years ago (Ma)). The problematic fossil taxa Halkieria and Orthrozanclus (grouped in Sachitida) have been assigned variously to stem-group annelids, brachiopods, stem-group molluscs or stem-group aculiferans (Polyplacophora and Aplacophora), but their affinities have remained controversial owing to a lack of preserved diagnostic characters...
February 6, 2017: Nature
https://www.readbyqxmd.com/read/28160593/dental-extraction-following-zoledronate-induces-osteonecrosis-in-rat-s-jaw
#17
X Vidal-Gutiérrez, J-F Gómez-Clavel, L-A Gaitán-Cepeda
BACKGROUND: Bisphosphonate-Related Osteonecrosis of the Jaw (BRONJ) is clinically characterized by the presence of exposed bone in the oral cavity that persists for more than eight weeks. Previous attempts to establish an animal model have not sufficiently considered disease features. Our aim was to establish an inexpensive and replicable animal model that develops BRONJ in a short time. MATERIAL AND METHODS: Thirty-two male Wistar rats were randomly divided into two groups: control and experimental...
February 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28149467/effect-of-dental-restorative-materials-on-total-antioxidant-capacity-and-calcium-concentration-of-unstimulated-saliva
#18
Gholam H Ramezani, Mona-Momeni Moghadam, Mohammad-Ali Saghiri, Franklin Garcia-Godoy, Armen Asatourian, Mohsen Aminsobhani, Mark Scarbecz, Nader Sheibani
BACKGROUND: To evaluate the effect of dental amalgam and composite restorations on total antioxidant capacity (TAC) and calcium (Ca) ion concentration of unstimulated saliva. MATERIAL AND METHODS: Forty-eight children aged 6-10 years selected and divided into three groups of sixteen (8 males, 8 females). In group A and B, samples consisted of two class II dental composite or amalgam restorations, while in group C samples were caries-free (control group). Unstimulated saliva from all samples was collected and TAC was measured by spectrophotometry using an adaptation of 2, 2'-azino-di-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) assay...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28139480/evaluation-of-role-of-fixed-orthodontics-in-changing-oral-ecological-flora-of-opportunistic-microbes-in-children-and-adolescent
#19
Chandresh Shukla, Rajkumar Maurya, Vinod Singh, Manisha Tijare
OBJECTIVE: To determine the prevalence and counts of Streptococcus mutans and Candida species in orthodontic fixed appliance therapy patients and comparison of the efficiency of manual and electronic toothbrushes on minimizing plaque by reducing S. mutans and Candida species in above-mentioned patients. MATERIALS AND METHODS: The study was carried out on total number of sixty patients scheduled for orthodontic treatment (age group: 13-18). Plaque samples were collected to determine oral carriage of S...
January 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28133644/aggressive-periodontitis-the-unsolved-mystery
#20
Danielle Clark, Maria Febbraio, Liran Levin
Aggressive periodontal disease is an oral health mystery. Our current understanding of this disease is that specific bacteria invade the oral cavity and the host reacts with an inflammatory response leading to mass destruction of the alveolar bone. Aggressive periodontal disease is typically observed in a population under the age of 30 and occurs so rapidly that it is difficult to treat. Unfortunately, the consequence of this disease frequently involves tooth extractions. As a result, the aftermath is chewing disability and damage to self-esteem due to an altered self-image...
2017: Quintessence International
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