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https://www.readbyqxmd.com/read/29334437/a-randomized-clinical-trial-to-measure-the-erosion-protection-benefits-of-a-novel-stabilized-stannous-fluoride-dentifrice-versus-a-control-dentifrice
#1
Xinyi Zhao, Tao He, Yanyan He, Cathy Cheng, Haijing Chen
OBJECTIVES: The aim of this investigation was to assess the erosion protection ability of a novel stabilized stannous fluoride (SnF2) dentifrice and a control sodium fluoride dentifrice (NaF) using a well-credentialed human in situ model. METHODS: A novel smooth texture 0.454% stabilized SnF2 dentifrice (Crest® Pro-Health™ smooth formula) and a 0.23% NaF marketed control dentifrice with 5% potassium nitrate (Sensodyne® Pronamel®) were compared in a 10-day, single center, randomized, controlled, double-blind, two-treatment, three-period crossover in situ clinical trial...
December 2017: Journal of 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
#2
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/29326504/oral-health-related-quality-of-life-following-third-molar-surgery-in-an-african-population
#3
Adebayo Aremu Ibikunle, Wasiu Lanre Adeyemo
Introduction: Surgical extraction of impacted mandibular third molars is often associated with sequelae such as postoperative pain, facial edema, and limitation in mouth opening ability. These sequelae may result in changes in the patients' lifestyle and quality of life (QoL). Aim: The aim of this study was to evaluate the effect of surgical extraction of impacted mandibular third molars on patients' QoL in the immediate postoperative period (7 days). Materials and Methods: Ethical approval for this study was obtained from the Health Research and Ethics committee of the Lagos University Teaching Hospital...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29322857/morphometric-analysis-for-evaluating-the-relation-between-incisal-guidance-angle-occlusal-plane-angle-and-functional-temporomandibular-joint-shape-variation
#4
Seulgi Han, Sang Min Shin, Yong-Seok Choi, So Yeun Kim, Ching-Chang Ko, Yong-Il Kim
OBJECTIVE: The correlations between morphology of the temporomandibular joint structure, the anterior guidance angle, and occlusal plane were investigated. MATERIALS AND METHODS: A cone beam computed tomography analysis was performed in 158 patients (86 women and 72 men). 3D software was employed to obtain the coordinates of the shape of the incisal guidance angle, occlusal guidance angle, articular fossa, and mandibular condyle. Generalized Procrustes analysis including principal components analysis (PCA) were performed and produced principal components (PCs) scores of each shape and their centroid size (CS)...
January 11, 2018: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29316445/does-intra-alveolar-application-of-chlorhexidine-gel-in-combination-with-platelet-rich-fibrin-have-an-advantage-over-application-of-platelet-rich-fibrin-in-decreasing-alveolar-osteitis-after-mandibular-third-molar-surgery-a-double-blinded-randomized-clinical
#5
Majid Eshghpour, Nasrin Danaeifar, Hamed Kermani, Amir Hossein Nejat
PURPOSE: To evaluate the effectiveness of chlorhexidine (CHX) gel and platelet-rich fibrin (PRF) compared with PRF alone in preventing the development of alveolar osteitis (AO). MATERIALS AND METHODS: In a double-blinded trial, patients undergoing surgical management of bilateral impacted mandibular third molars were randomly divided into 2 groups; 1 group received PRF in 1 extraction socket with the other socket as its control and the other group received 0.2% CHX gel plus PRF in 1 socket with the other socket serving as its control...
December 16, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29311022/three-dimensional-titanium-miniplates-for-fixation-of-subcondylar-mandibular-fractures-comparison-of-five-designs-using-patient-specific-finite-element-analysis
#6
Mhd Hassan Albogha, Yoshihide Mori, Ichiro Takahashi
PURPOSE: The purpose of the current study is to compare the performance of five designs of three-dimensional titanium miniplates (lambda, strut, delta, rhombic and trapezoid) for fixation of subcondylar mandibular fracture. MATERIALS AND METHODS: Three-dimensional models were constructed for the five miniplates with their screws and integrated into a virtually fractured mandible that was derived from a computed tomographic image of living human. Patient-specific finite element models were analyzed to compare the performances of the miniplates...
December 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29310817/dental-implant-navigation-system-guide-the-surgery-future
#7
Ting-Mao Sun, Ting-Hsun Lan, Chin-Yun Pan, Huey-Er Lee
No study has investigated the effect of learning curves on the accuracy of dental implant navigation systems. This study evaluated the accuracy of the dental implant navigation system and established the learning curve according to operation site and operating time. Each dental model was used for drilling 3 missing tooth positions, and a patient tracking module was created. The same dentist performed the drilling test for 5 sets of dental models. CT back scanning was performed on the dental models. Customized implants based on the drilled holes were inserted...
January 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29303850/complications-in-orthognathic-surgery
#8
Sergio Olate, Eder Sigua, Luciana Asprino, Márcio de Moraes
The aim of this study was to analyze the presence of complications related to orthognathic surgery performed by surgeons in train. A retrospective study was conducted between 2005 and 2014, analyzing the clinical records of patients treated in the authors' Department. Patients who underwent orthognathic surgery were included, under a bidimensional analysis and with the conventional orthosurgical sequence; intraoperative complications were identified, such as the occurrence of a bad split, bleeding, tissue injury, among others and postoperative variables such as impaired sensation, infection, and alterations in the osteosynthesis systems...
January 4, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29303418/prosthetically-cad-cam-guided-bone-augmentation-of-atrophic-jaws-using-customized-titanium-mesh-preliminary-results-of-an-open-prospective-study
#9
Leonardo Ciocca, Giuseppe Lizio, Paolo Baldissara, Alessandro Sambuco, Roberto Scotti, Giuseppe Corinadesi
This study evaluated the outcomes of CAD-CAM customized titanium mesh used for prosthetically guided bone augmentation related to the occlusion driven implant position; to the vertical bone volume gain of mandible and maxilla; and to complications, like mesh exposure.. Nine patients scheduled for bone augmentation of atrophic sites were treated with custom titanium mesh and particulate bone grafts with autologous bone and anorganic bovine bone in a 1:1 ratio prior to implant surgery. The bone volume needed to augment was virtually projected based on implants position, width and length, and the mesh design was programmed for the necessary retaining screws...
January 5, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29302589/evaluation-of-bone-healing-using-rhbmp-2-soaked-hydroxyapatite-in-ridge-augmentation-a-prospective-observational-study
#10
Hyun-Suk Kim, Ju-Cheol Park, Pil-Young Yun, Young-Kyun Kim
Background: The goal of this study is to evaluate complication and effectiveness of alveolar ridge augmentations using a hydroxyapatite-based alloplastic bony substitute with rhBMP-2. Methods: A total of 10 patients (4 males, 6 females; 58.5 ± 8.6 years) participated in this clinical research. Alveolar ridge augmentations were performed in edentulous (4 maxillary posterior, 5 mandibular posterior, and 1 mandibular anterior) regions. Anorganic bovine bone (ABB; Bio-Oss®, Geistlich Pharma AG, Wolhusen, Switzerland) was used as the bone graft material in the control group (n = 5)) while hydroxyapatite-based alloplastic bony substitute with rhBMP-2(HA+rhBMP-2; NOVOSIS®-Dent, CGBio Inc...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29299191/comparison-of-two-different-debonding-techniques-in-orthodontic-treatment
#11
Luca Piccoli, Guido Migliau, Laith Konstantinos Besharat, Stefano Di Carlo, Giorgio Pompa, Roberto Di Giorgio
Aim: The purpose of this research is to investigate whether and how the adhesive bond failure site varied in relation to the material used for the orthodontic bonding and debonding technique applied. Materials and methods: Two different methods of orthodontic debonding were included in our survey; cutters for orthodontics and debonding plier. Three different materials for the adhesion of the bracket: composite light curing, self-curing composite and glass ionomer cement...
April 2017: Annali di Stomatologia
https://www.readbyqxmd.com/read/29288289/anterolateral-thigh-flap-combined-with-reconstruction-plate-versus-double-free-flaps-for-composite-mandibular-reconstruction-a-propensity-score-matched-study
#12
Anaeze C Offodile, Jennifer An-Jou Lin, Kai-Ping Chang, Mohamed Abdelrahman, Hao-Wei Kou, Charles Yuen Yung Loh, Mario A Aycart, Huang-Kai Kao
OBJECTIVE: This study was designed to examine the comparative effectiveness of oromandibular defect reconstruction via anterolateral thigh flap and bridging plate (ALT only) versus simultaneous soft tissue and vascularized bone flap (DFF), with regards to long-term plate exposure and complications. METHODS: A propensity score-matched analysis of patients with an oncologic head and neck defect who underwent microvascular reconstruction was performed. Two surgical groups, i...
December 30, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29285826/a-cone-beam-computed-tomography-study-of-the-anatomical-relationships-between-mandibular-teeth-and-the-mandibular-canal-with-a-review-of-the-current-literature
#13
Umut Aksoy, Seçil Aksoy, Kaan Orhan
The purpose of this study was to evaluate age- and sex-related changes in the anatomical relationships between the roots of the molars and premolars and the mandibular canal using cone-beam computed tomography (CBCT) images. A total of 243 patients (116 males, 127 females) aged 16-83 years for whom previous CBCT scans were available were enrolled in this study. The patients were subcategorized by sex and age (Group I, <21 years; Group II, 21-40 years; and Group III, >40 years). The distances between the mandibular canal and the molars and premolars were measured...
December 29, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29284917/assessment-of-the-mental-foramen-location-in-a-sample-of-fully-dentate-lebanese-adults-using-cone-beam-computed-tomography-technology
#14
Georges Aoun, Abbass El-Outa, Nakhle Kafrouny, Antoine Berberi
Objective: The literature reports that the location of mental foramen shows differences among races. The aim of this study was to assess the mental foramen position in a sample of Lebanese population using cone-beam computed tomography (CBCT) technology. Materials and methods: In this study, we investigated CBCT images of 50 fully dentate Lebanese adults (23 males and 27 females). We assessed the horizontal position of the mental foramen in relation with the mandibular premolars in both right and left sides and the vertical position by measuring the distance from the upper border of the foramen to the inferior border of the body of the mandible...
December 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29283937/piezosurgery-for-treatment-of-large-recurrent-mandibular-osteoma
#15
Josué Hernando, Antonio Aguilar-Salvatierra, Ignacio Osoitz Leizaola-Cardesa, Pedro Martínez Seijas, Pablo Aguirre-Echebarria, Javier Martín, Gerardo Gómez-Moreno
BACKGROUND: Osteomas are infrequent benign bone tumors of uncertain etiology. They are usually situated at extremities and their occurrence in the jaws is relatively rare. There are 3 types of osteoma: central, peripheral, and extraskeletal. Preoperative presumptive diagnosis is performed by means of radiography using orthopantomographs, computerized tomographs, or cone beam scans. Treatment is surgical and consists of careful exeresis and curettage of the adjacent tissue. In recent years, piezoelectric surgery has been used to treat bone pathologies in the maxillofacial area, orthopedic surgery, and neurosurgery...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29281715/correlation-between-the-thickness-of-the-crestal-and-buccolingual-cortical-bone-at-varying-depths-and-implant-stability-quotients
#16
Kanthanat Chatvaratthana, Sita Thaworanunta, Dutmanee Seriwatanachai, Natthamet Wongsirichat
BACKGROUND/PURPOSE: Resonance frequency analysis (RFA) is clinically used in dentistry to access the stiffness of dental implants in surrounding bone. However, the clear advantages and disadvantages of this method are still inconclusive. The aim of this study was to investigate and compare implant stability quotient (ISQ) values obtained from RFA with parameters obtained from a cone beam computed tomography (CBCT) scan of the same region. MATERIALS AND METHODS: Nineteen implants (Conelog) were inserted in the posterior maxillary and mandibular partially edentulous regions of 16 patients...
2017: PloS One
https://www.readbyqxmd.com/read/29279809/duplication-of-the-sphenomandibular-ligament
#17
Emily Simonds, Joe Iwanaga, Rod J Oskouian, R Shane Tubbs
The normal origin of attachment of the sphenomandibular ligament is from the spine of the sphenoid bone and derailment of its course might interfere with mandibular nerve anesthetic blockade. During routine dissection of the skull base and mandibular region, a case of an anatomical variation of the sphenomandibular ligament was observed. The ligament was found to be composed of two parts; an anterior part with a wide origin from the spine of the sphenoid bone and a posterior part arising from the mandibular fossa of the temporal bone...
October 18, 2017: Curēus
https://www.readbyqxmd.com/read/29279767/3-dimensional-reconstruction-of-mandibular-canal-at-the-interforaminal-region-using-micro-computed-tomography-in-korean
#18
Yong Hyun Jeon, Chul Kwon Lee, Hee-Jung Kim, Jae-Heon Chung, Heung-Joong Kim, Sun-Kyoung Yu
PURPOSE: The purpose of this study was to identify the complex course of the mandibular canal using 3D reconstruction of microCT images and to provide the diagram for clinicians to help them understand at the interforaminal region in Korean. MATERIALS AND METHODS: Twenty-six hemimandibles obtained from cadavers were examined using microCT, and the images were reconstructed. At both the midpoint of mental foramen and the tip of anterior loop, the bucco-lingual position, the height from the mandibular inferior border, the horizontal distance between two points, and position relative to tooth site on the mandibular canal were measured...
December 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29279679/effectiveness-of-platelet-rich-fibrin-in-the-management-of-pain-and-delayed-wound-healing-associated-with-established-alveolar-osteitis-dry-socket
#19
Ashish Sharma, Nimish Aggarwal, Sanjay Rastogi, Rupshikha Choudhury, Siddhi Tripathi
Objective: To assess the efficacy of platelet-rich fibrin (PRF) on the pain and healing of the extraction socket related with established alveolar osteitis (dry socket, AO) after the removal of maxillary and mandibular molars. Materials and Methods: One hundred consecutive adult patients with age group ranging from 18 to 40 years along with established dry socket after maxillary and mandibular molar extractions who have not received any treatment for the same were included in this single-arm clinical trial...
October 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/29279399/developmental-origins-of-mosaic-evolution-in-the-avian-cranium
#20
Ryan N Felice, Anjali Goswami
Mosaic evolution, which results from multiple influences shaping morphological traits and can lead to the presence of a mixture of ancestral and derived characteristics, has been frequently invoked in describing evolutionary patterns in birds. Mosaicism implies the hierarchical organization of organismal traits into semiautonomous subsets, or modules, which reflect differential genetic and developmental origins. Here, we analyze mosaic evolution in the avian skull using high-dimensional 3D surface morphometric data across a broad phylogenetic sample encompassing nearly all extant families...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
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