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https://www.readbyqxmd.com/read/29676256/-the-smile-a-challenge-in-the-treatment-of-class-iii
#1
Laure De Launay, Sarah Gebeile-Chauty
INTRODUCTION: The smile poses a challenge in the treatment of class III. Untreated, the class III patient presents excessive maxillary torque and a predominant display of the mandibular incisors, a sign that becomes more visible with age. Functional orthopedics restores the aesthetic appearance of the smile by maxillary protraction (sometimes temporarily because 20% of cases will still need surgery). Depending on the initial severity of the case (-4.5 mm AoBo would be the threshold value), the options are compensation or surgical correction...
March 2018: L' Orthodontie Française
https://www.readbyqxmd.com/read/29674828/depth-and-percentage-of-resin-based-sealer-penetration-inside-the-dentinal-tubules-using-endovac-endoactivator-navi-tip-fx-irrigation-system-a-confocal-laser-scanning-microscope-study
#2
Ramesh Bharti, Aseem Prakash Tikku, Anil Chandra, Vijay Kumar Shakya, Simith Yadav
Aim: This in vitro study was conducted to evaluate the effect of EndoVac, EndoActivator, and Navy Tip FX irrigation system on lateral depth and percentage of sealer penetration into the dentinal tubules using confocal laser scanning microscope. Materials and Methods: Forty recently extracted single-rooted mandibular premolars were taken and root canal treatment was performed using three different irrigation system, that is, EndoVac, EndoActivator, and Navi tip FX...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29674823/efficacy-of-new-irrigating-solution-on-smear-layer-removal-in-apical-third-of-root-canal-a-scanning-electron-microscope-study
#3
Priyanka Himmatrao Patil, Meenal Nitin Gulve, Swapnil Janardan Kolhe, Roshan Mathew Samuel, Gayatri Balasaheb Aher
Aims: The aim of this in vitro study is to evaluate and compare the smear layer removal efficacy of etidronic acid-based irrigating solution with others in the apical third of the root canal. Materials and Methods: Forty human single-rooted mandibular premolar teeth were taken and decoronated to standardize the canal length. After biomechanical preparation, teeth were randomly divided into four groups ( n = 10) and the final irrigation was carried out with tested irrigants...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29674818/efficacy-of-denoising-and-enhancement-filters-for-detection-of-approximal-and-occlusal-caries-on-digital-intraoral-radiographs
#4
Abbas Shokri, Shahin Kasraei, Sima Lari, Majid Mahmoodzadeh, Amin Khaleghi, Saeid Musavi, Vahid Akheshteh
Background and Objectives: Image processing and enhancement filters can significantly improve the diagnostic value of digital radiographs. Evidence shows that increasing the contrast and filtering improve the diagnostic accuracy for caries detection. This study sought to assess the diagnostic accuracy of original and enhanced digital radiographs for the detection of approximal and occlusal caries. Subjects and Methods: In this experimental study, incipient carious lesions were artificially created on 120 proximal and occlusal surfaces of human extracted permanent molar and premolar teeth...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29674816/comparative-evaluation-of-dentinal-crack-formation-after-root-canal-preparation-using-protaper-next-oneshape-and-hyflex-edm
#5
Sanjib Das, Prasanti Kumari Pradhan, S Lata, Sachidananda Prasad Sinha
Introduction: The purpose of this study was to compare the incidence of dentinal crack formation after root canal preparation using ProTaper Next, OneShape, and Hyflex electrodischarge machining (HEDM). Materials and Methods: A total of 75 extracted mandibular premolars were selected. The root canals were instrumented using ProTaper Next, OneShape, and HEDM rotary files. All roots were horizontally sectioned at 3, 6, and 9 mm from apex with slow-speed saw under water cooling...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29674811/efficacy-of-different-irrigation-regimes-on-the-push-out-bond-strength-of-various-resin-based-sealers-at-different-root-levels-an-in-vitro-study
#6
Diksha Verma, Sonali Taneja, Manju Kumari
Aim: This study aims to evaluate and compare the efficacy of various irrigation regimens on push-out bond strength of AH Plus/gutta-percha, Real Seal/Resilon, and MetaSeal/gutta-percha at three different root levels. Materials and Methods: Single-rooted mandibular premolars ( n = 120) were prepared and divided into four groups ( n = 30) based on irrigation regimen used: I: 5.25% sodium hypochlorite (NaOCl)-17% ethylenediaminetetraacetic acid (EDTA); II: 5.25% NaOCl-2...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29670735/microleakage-of-porcelain-laminate-veneers-cemented-with-different-bonding-techniques
#7
Satheesh B Haralur
Background: Porcelain laminate veneers (PLV) are continued to be popular in modern dental practice due to its high aesthetic outcome and conservative tooth preparation. The composite resins are commonly used as luting agents for cementation of PLV. Polymerisation shrinkage induced marginal gap and interfacial leakage is the persistent limitation with the resin luting cements. The objective of the study was to assess the effect of various dentin bonding techniques on the microleakage after accelerated ageing in porcelain laminate veneres...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29670731/effect-of-different-irrigations-on-the-bond-strength-of-self-adhesive-resin-cement-to-root-dentin
#8
Carlos Garcia, Edwin Ruales-Carrera, Luiz-Henrique-Maykot Prates, Claudia-Angela-Maziero Volpato
Background: Different disinfectant solutions or medications are indicated prior fiber post bonding procedures.The aim was to evaluate the effect of different pretreatments of root canal on the bond strength of a fiber post luted to dentin with self-adhesive resin cement. Material and Methods: Forty-eight single-rooted mandibular premolars were endodontically treated and prepared to receive fiber posts. Teeth were assigned to four groups (n=12). Root canal walls were subjected to no pretreatment (G1 - control); irrigation with 10 mL of 5% sodium hypochlorite (NaOCl) (G2); 10 mL of 17% ethylenediaminetetraacetic acid (EDTA) associated with 10 mL of 5% NaOCl (G3); or 10 mL of 17% EDTA (G4)...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29668673/new-data-on-amynodontidae-mammalia-perissodactyla-from-eastern-europe-phylogenetic-and-palaeobiogeographic-implications-around-the-eocene-oligocene-transition
#9
Jérémy Tissier, Damien Becker, Vlad Codrea, Loïc Costeur, Cristina Fărcaş, Alexandru Solomon, Marton Venczel, Olivier Maridet
Amynodontidae is a family of Rhinocerotoidea (Mammalia, Perissodactyla) known from the late Early Eocene to the latest Oligocene, in North America and Eurasia. European Amynodontidae are very rare, and all remains belong almost exclusively to a single post-Grande Coupure genus from the Oligocene, Cadurcotherium. The "Grande Coupure" defines an extinctions and dispersal-generated originations event in Europe that is nearly contemporaneous with the Eocene-Oligocene transition. Perissodactyls are one of the major groups affected by this event: Palaeotheriidae went almost extinct during this crisis, whereas Rhinocerotidae appeared for the first time in Europe...
2018: PloS One
https://www.readbyqxmd.com/read/29667468/growth-hormone-receptor-gene-is-related-to-root-length-and-tooth-length-in-human-teeth
#10
Yu Hikita, Tetsutaro Yamaguchi, Daisuke Tomita, Mohamed Adel, Takatoshi Nakawaki, Koshu Katayama, Koutaro Maki, Ryosuke Kimura
OBJECTIVES: To examine the relationship between tooth length and growth hormone receptor (GHR) gene variants in a healthy Japanese population. MATERIALS AND METHODS: The subjects consisted of 193 Japanese adults (69 men, 124 women), aged 13 to 56 years. Genomic DNA was extracted from saliva and genotyped GHR rs6184 and rs6180 variants using the Taqman genotyping. Computed tomography (CT) images were acquired using a dental cone-beam CT scanner and reconstructed using open-source OsiriX medical image processing software...
April 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29664335/maxillary-molar-distalization-with-miniscrew-supported-appliances-in-class-ii-malocclusion-a-systematic-review
#11
Roshan Noor Mohamed, Sakeenabi Basha, Yousef Al-Thomali
OBJECTIVES: To evaluate the quantitative effects of miniscrew supported appliances for maxillary molar distalization in Class II malocclusion. MATERIALS AND METHODS: The systematic search included MEDLINE, EMBASE, CINAHL, PsychINFO, Scopus, and key journals and review articles. The date of the last search was January 30, 2017. Methodological quality of the retrospective studies was graded by means of the Quality Assessment Tool for Quantitative Studies, developed for the Effective Public Health Practice Project (EPHPP) and prospective studies by means of Newcastle-Ottawa Scale...
April 17, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29664333/relationship-between-tooth-length-and-three-dimensional-mandibular-morphology
#12
Yu Hikita, Tetsutaro Yamaguchi, Daisuke Tomita, Mohamed Adel, Takatoshi Nakawaki, Koshu Katayama, Koutaro Maki, Ryosuke Kimura
OBJECTIVES: To clarify the relationship between tooth length and three-dimensional mandibular morphology in a healthy Japanese population. MATERIALS AND METHODS: This study included 181 Japanese adults: 66 men and 115 women. Cone-beam computed tomography (CBCT) images were acquired with a dentofacial cone-beam x-ray CT scanner. Tooth length was measured with open-source OsiriX medical image processing software. Crown height and root length were measured in the maxillary and mandibular central incisors, lateral incisors, canines, first premolars, second premolars, first molars, and second molars...
April 17, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29664332/characterization-of-dental-phenotype-in-patients-with-cleidocranial-dysplasia-using-longitudinal-data
#13
Sang-Woon Ha, Yu-Jin Jung, Han-Sol Bae, Hyun-Mo Ryoo, Il-Sik Cho, Seung-Hak Baek
OBJECTIVE: To investigate the characteristics of the dental phenotype in patients with cleidocranial dysplasia (CCD) using longitudinal data. MATERIALS AND METHODS: Twelve unrelated Korean CCD patients were observed using a longitudinal series of radiographs and clinical photographs. Statistical analysis was performed on the dental phenotypic data. RESULTS: Although dysplasia of the clavicles, open fontanelle, and wormian bone were observed in all 12 patients, delayed fusion of the mandibular symphysis was found in four patients...
April 17, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29663492/efficacy-of-epinephrine-free-articaine-compared-to-articaine-with-epinephrine-1-100-000-for-maxillary-infiltration-a-randomized-clinical-trial
#14
Konstantinos Paterakis, Marc Schmitter, Sareh Said Yekta-Michael
OBJECTIVE: The selection of local anesthetic in dental practice is essential to the patient's comfort and the success of the treatment. Many patients prefer anesthesia even for short treatments. Articaine is a local anesthetic commonly used for dental practice. The duration of the effect of articaine on the nerve fibers is not yet precisely reported. This study was aimed to evaluate the clinical efficacy of 4% articaine with and without epinephrine in treatment of occlusal caries. MATERIALS AND METHODS: Thirty healthy patients were included in this randomized double-blind study...
April 16, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29663186/mandibular-canal-branching-assessed-with-cone-beam-computed-tomography
#15
Mauricio Augusto Aquino de Castro, Sâmila Gonçalves Barra, Manuel Oscar Lagravere Vich, Mauro Henrique Guimaraes Abreu, Ricardo Alves Mesquita
PURPOSE: The mandibular canal must be considered in dental procedures to avoid injuries of the alveolar inferior nerve. The occurrence of anatomical variations of the mandibular canal increases the risk of neurovascular injuries. The purpose of this study was to identify and describe the prevalence of mandibular canal branching (MCB) using cone beam computer tomography (CBCT). METHODS: Seven hundred standardized CBCTs were selected. The images were evaluated for the presence of MCB and for the detection of pathologies that could affect the structure of the canals...
April 16, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/29663086/marginal-adaptation-of-lithium-disilicate-ceramic-crowns-cemented-with-three-different-resin-cements
#16
Ingrid Peroz, Triantafyllos Mitsas, Kurt Erdelt, Niko Kopsahilis
OBJECTIVES: The cementation process and cementation materials have an influence on the marginal adaptation of restorations. The gap could be affected by thermal and mechanical loading (TCML). The computerized x-ray microtomography (μCT) method offers the possibility of measuring the marginal gap without destruction of the restoration. The aim of this study was to evaluate the marginal gap (MG) and the absolute marginal discrepancy (AMD) before and after TCML. MATERIALS AND METHODS: Thirty-nine human premolars were prepared for full ceramic crowns made of lithium disilicate...
April 17, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29662262/treatment-of-endo-periodontal-lesion-using-leukocyte-platelet-rich-fibrin-a-case-report
#17
Pablo Betancourt, Ricardo Elgueta, Ramon Fuentes
Case Description: The main objective of this paper was to report the clinical effectiveness of leukocyte- platelet- rich fibrin (L-PRF) in the treatment of a combined endo-periodontal lesion of an upper first premolar. Clinical Findings: The tooth had a profound abfraction on the vestibular aspect and presented no mobility but revealed a deep pocket measuring of 11 mm on the mesial vestibular aspect and 14 mm on the mesial palatine aspect. The three dimensional image analysis showed total bone loss in the mesial aspect and an extensively bone loss of the vestibular aspect of the vestibular root...
December 30, 2017: Colombia Médica: CM
https://www.readbyqxmd.com/read/29659350/does-dental-caries-affect-dental-development-in-children-and-adolescents
#18
Brunilda Dhamo, Besiana Elezi, Lea Kragt, Eppo B Wolvius, Edwin M Ongkosuwito
Although a link between dietary changes, caries, and dental development has been observed, the literature provides little insight about this relationship. The aim of our study was to investigate the association between dental caries and dental development in a clinical sample of Albanian children and adolescents. In total, 118 children and adolescents, born between 1995 and 2004 and aged 6-15 years, were included. Dental caries in the deciduous dentition was assessed using the Decayed, Filled Teeth (dft) index and dental caries in the permanent dentition was assessed using the Decayed, Missing, Filled Teeth (DMFT) index...
April 6, 2018: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29657499/age-estimation-in-indian-adults-by-the-coronal-pulp-cavity-index
#19
Vaishali Vasant Koranne, Amit A Mhapuskar, Swati P Marathe, Sameer A Joshi, Rashmi S Saddiwal, Shams Ul Nisa
Background: Age estimation from tooth coronal index (TCI) using intraoral periapical radiographs by paralleling technique based on a reduction in the size of the dental pulp cavity with advancing age as a result of secondary dentin deposition. Aim and Objectives: The aim of this study is to estimate age for Indian adults using radiographs of mandibular first molar and second premolar teeth using coronal pulp cavity index. Materials and Methods: The study material consists of 400 intraoral periapical radiographs of mandibular second premolar and mandibular first molar from enrolled participants of either gender in the age group of 20-60 years...
September 2017: Journal of Forensic Dental Sciences
https://www.readbyqxmd.com/read/29657496/applicability-of-odontometric-dimensions-and-indices-in-sexual-dimorphism-among-nalgonda-population
#20
Sandipamu Thabitha Rani
Background: Teeth morphology varies among different population groups as they are exposed to various environmental conditions. Teeth being the most stable and hard tissue, human identification can be made when the other tissues are unavailable. Odontometric analysis can be considered for anthropological and forensic investigations. Aim: The aim of this study is to assess the reliability of odontometric mesiodistal (MD) width dimensions and indices in sexual dimorphism among Nalgonda population...
September 2017: Journal of Forensic Dental Sciences
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