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https://www.readbyqxmd.com/read/29342370/fgf8-signaling-alters-the-osteogenic-cell-fate-in-the-hard-palate
#1
J Xu, Z Huang, W Wang, X Tan, H Li, Y Zhang, W Tian, T Hu, Y P Chen
Fibroblast growth factor (FGF) signaling has been implicated in the regulation of osteogenesis in both intramembranous and endochondral ossifications. In the developing palate, the anterior bony palate forms by direct differentiation of cranial neural crest (CNC)-derived mesenchymal cells, but the signals that regulate the osteogenic cell fate in the developing palate remain unclear. In the present study, we investigated the potential role of FGF signaling in osteogenic fate determination of the palatal mesenchymal cells...
January 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29340349/prevalence-of-dental-implants-and-evaluation-of-peri-implant-bone-levels-in-patients-presenting-to-a-dental-school-a-radiographic-cross-sectional-2-year-study
#2
Eylem Ayhan Alkan, Lian Ping Mau, John Schoolfield, Gary F Guest, David L Cochran
PURPOSE: To evaluate the number of patients with dental implants who present to a dental school clinic for screening and to report the prevalence of peri-implant bone level change detected on digital panoramic radiographs of those subjects. MATERIALS AND METHODS: Patient screening files for 9,422 patients over a 2-year period were examined to see how many patients presented with dental implants. Those patients with at least one implant were further evaluated by measuring the bone level on the mesial and distal sides of the implant using the screening radiograph...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29339002/development-of-a-new-three-directional-distractor-system-for-the-correction-of-maxillary-transverse-and-sagittal-deficiency
#3
Canay Yılmaz Asan, Nükhet Kütük, Gökmen Kurt, Alper Alkan
PURPOSE: Class 3 malocclusions with maxillary deficiency, which are treated surgically and/or ordonotically, are common among adult patients. The aim of this study was to develop a three-directional bone-borne distractor that would allow the transverse expansion and sagittal advancement of the maxilla simultaneously. MATERIALS AND METHODS: Computed tomography images of a patient with maxillary deficiency were transmitted to a software program, and a distractor was designed with different sizes (D1, D2, D3) and manufactured from titanium alloy...
December 18, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29337634/risk-factors-associated-with-open-gingival-embrasures-after-orthodontic-treatment
#4
Sang Su An, Yoon Jeong Choi, Ji Young Kim, Chooryung J Chung, Kyung-Ho Kim
OBJECTIVES: To investigate the incidence of and contributing factors to open gingival embrasures between the central incisors after orthodontic treatment. MATERIALS AND METHODS: One hundred posttreatment patients (29 men and 71 women; mean age, 24.7 years) were divided retrospectively into occurrence and nonoccurrence groups based on intraoral photographs. Based on the severity, the occurrence group was further divided into mild, moderate, and severe groups. Parameters from periapical radiographs, superimposed lateral cephalograms, and study models were compared between the occurrence and the nonoccurrence groups by using independent t-tests and were also analyzed on the basis of severity via analysis of variance...
January 16, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29336289/management-of-odontogenic-cysts-by-endonasal-endoscopic-techniques-a-systematic-review-and-case-series
#5
Michael J Marino, Amber Luong, William C Yao, Martin J Citardi
BACKGROUND: Odontogenic cysts and tumors of the maxilla may be amendable to management by endonasal endoscopic techniques, which may reduce the morbidity associated with open procedures and avoid difficult reconstruction. OBJECTIVE: To perform a systematic review that evaluates the feasibility and outcomes of endoscopic techniques in the management of different odontogenic cysts. A case series of our experience with these minimally invasive techniques was assembled for insight into the technical aspects of these procedures...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29331408/long-term-craniofacial-morphology-in-young-adults-treated-for-a-non-syndromal-uclp-a-systematic-review
#6
REVIEW
Isabelle F P M Kappen, Whitney R Yoder, Aebele B Mink van der Molen, Corstiaan C Breugem
Minimizing mid-facial growth impairment is one of the treatment goals in cleft lip and palate surgery. As growth of the maxilla extends into young adulthood, long-term evaluation is essential to make a comprehensive assessment of a treatment protocol. There are numerous treatment approaches for cleft lip/palate surgery, and most have the characteristic distinction between either an early or a late cleft palate closure. PRISMA guidelines were applied to explore the quality of the current literature and to identify treatment factors influencing long-term cephalometric outcomes...
December 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29330869/three-year-analysis-of-zirconia-implants-used-for-single-tooth-replacement-and-three-unit-fixed-dental-prostheses-a-prospective-multicenter-study
#7
Marc Balmer, Benedikt C Spies, Kirstin Vach, Ralf-Joachim Kohal, Christoph H F Hämmerle, Ronald E Jung
AIM: The aim of the present investigation was to evaluate clinically and radiographically the outcome of zirconia oral implants after 3 years in function. MATERIALS AND METHODS: In 60 patients in need of either a single-tooth replacement or a three-unit fixed dental prosthesis (FDP), a total of 71 one-piece zirconia implants were placed and immediately restored with temporary fixed prostheses. After a period of at least 2 months in the mandible and at least 4 months in the maxilla, zirconia-based reconstructions were cemented...
January 12, 2018: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/29326525/mucormycosis-in-a-diabetic-patient-a-case-report-with-an-insight-into-its-pathophysiology
#8
Syeda Neelam Afroze, Rajani Korlepara, Guttikonda Venkateswara Rao, Jayakiran Madala
Mucormycosis is one of the most rapidly progressing and fulminant forms of fungal infection which usually begins in the nose and paranasal sinuses following inhalation of fungal spores. It is caused by organisms of the subphylum Mucormycotina, including genera as Absidia, Mucor, Rhizomucor, and Rhizopus. The incidence of mucormycosis is approximately 1.7 cases per 1,000,000 inhabitants per year. Mucormycosis affecting the maxilla is rare because of rich blood vessel supply of maxillofacial areas although more virulent fungi such as Mucor can overcome this difficulty...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29326460/aesthetic-dentistry-advancing-the-maxilla
#9
J Mew
No abstract text is available yet for this article.
January 12, 2018: British Dental Journal
https://www.readbyqxmd.com/read/29324473/chondromyxoid-fibroma-arising-in-craniofacial-sites-a-clinicopathologic-analysis-of-25-cases
#10
David M Meredith, Christopher D M Fletcher, Vickie Y Jo
Chondromyxoid fibroma (CMF) is a rare benign tumor, usually arising in the metaphysis of long bones in young adults. Occurrence in craniofacial bones presents a particular diagnostic challenge given its unusual location and resemblance to malignant mimics. We describe the clinicopathologic features of 25 cases of craniofacial CMF identified between 1999 and 2017. Patients were 14 men and 11 women, with median age of 44 years (range, 5 to 83 y). Sites of involvement were sphenoid (7), ethmoid (5), maxilla (3), occipital (2), nasal septum (2), palatine (2), temporal (2), orbit (1), and undisclosed skull (1)...
January 10, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29323624/sella-turcica-bridging-and-ossified-carotico-clinoid-ligament-correlation-with-sex-and-age
#11
Daniele Gibelli, Michaela Cellina, Stefano Gibelli, Marta Panzeri, Antonio Giancarlo Oliva, Giovanni Termine, Chiarella Sforza
Aim Sella turcica bridging and ossified carotico-clinoid ligament are two variants of the sella turcica, the origin of which is partially unknown. These variations should be properly recognised, as they may hamper the removal of the anterior clinoid process in surgical procedures. Therefore, our aim was to determine the prevalence of these two anatomical variants and to investigate their prevalence according to patient sex and age in a series of maxilla computed tomography scans. Materials and methods We revised 300 computed tomography scans of the head from northern Italian patients, stratified into three age groups (18-40 years, 41-60 years, >60 years): a logistic regression analysis was used to explore an association of sella turcica bridging with age and sex through Matlab software, also including a test for the extracted model ( P < 0...
January 1, 2018: Neuroradiology Journal
https://www.readbyqxmd.com/read/29318405/the-efficacy-of-a-porcine-collagen-matrix-in-keratinized-tissue-augmentation-a-5-year-follow-up-study
#12
C Maiorana, L Pivetti, F Signorino, G B Grossi, A S Herford, M Beretta
BACKGROUND: When keratinized tissue width around dental implants is poorly represented, the clinician could resort to autogenous soft tissue grafting. Autogenous soft tissue grafting procedures are usually associated with a certain degree of morbidity. Collagen matrices could be used as an alternative to reduce morbidity and intra-operatory times. The aim of this study was to assess the efficacy of a xenogeneic collagen matrix as a substitute for soft tissue grafting around dental implants...
January 10, 2018: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/29316569/prospective-evaluation-of-posterior-fixed-zirconia-dental-prostheses-10-year-clinical-results
#13
Sven Rinke, Jens Wehle, Xenia Schulz, Ralf Bürgers, Matthias Rödiger
PURPOSE: To investigate the clinical survival and success rates of conventionally luted three- and four-unit fixed dental prostheses (FDPs) with zirconia frameworks (Cercon Smart Ceramics, DeguDent) after a mean observation period of 119 ± 36 months. MATERIALS AND METHODS: A total of 75 patients were treated in the Department of Prosthodontics at the University of Goettingen, Germany, and a total of 99 posterior FDPs were inserted and luted with zinc phosphate cement...
January 2018: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29315068/-is-the%C3%A2-precision-of-intraoral-digital-impressions-in-orthodontics-enough
#14
Romain Duvert, Sarah Gebeile-Chauty
INTRODUCTION: Replacing impression by intraoral camera is a paradigm shift. However no in vivo independent studies have compared the accuracy of analog impressions with three systems of digital impression. Are digital recordings precise enough for our orthodontic practices? MATERIALS AND METHODS: Five impressions of the maxillary and mandibular arch of the same subject were conducted in vinylpolysiloxane, cast in plaster type IV then scanned by a laboratory scanner (VPS group)...
December 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/29311424/jaw-bones-regeneration-using-mesenchymal-stem-cells-a-single-center-experience
#15
Walter Colangeli, Umberto Riccelli, Amerigo Giudice, Ida Barca, Davide Caruso, Daniela Novembre, Claudio Tortosa, Raffaella Cordaro, Maria Giulia Cristofaro
PURPOSE: Mesenchymal stem cells (MSC), which are multipotent stromal cells, are considered to be a promising resource in tissue engineering and tissue regeneration. MSCs have been used to generate new maxillary bone with clinically successful results. The aim of this study was to determine the role of MSC in bone regeneration procedures in patients with benign maxillary lesions. METHODS: A study was conducted on five patients treated for maxillary bone defects resulting from biopsy of benign lesions at the University Hospital of Magna Græcia, Catanzaro, Italy from January 2015 to October 2016...
December 21, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29311021/squamous-odontogenic-tumor-and-squamous-odontogenic-tumor-like-proliferations-in-odontogenic-cysts-an-updated-analysis-of-170-cases-reported-in-the-literature
#16
REVIEW
Bruno Ramos Chrcanovic, Ricardo Santiago Gomez
PURPOSE: To integrate the available data published on squamous odontogenic tumors (SOT) and squamous odontogenic tumor-like proliferations in odontogenic cysts (SOT-LPOC) into a comprehensive analysis of their clinical/radiologic features. MATERIALS AND METHODS: An electronic search was undertaken in January 2017. Eligibility criteria included publications having enough clinical/radiological/histological information to confirm a definite diagnosis. RESULTS: A total of 74 publications reporting 110 SOTs (102 central, 8 peripheral) and 60 SOT-LPOC were included...
December 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29310817/dental-implant-navigation-system-guide-the-surgery-future
#17
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/29309353/treatment-of-severe-maxillary-hypoplasia-with-combined-orthodontics-and-distraction-osteogenesis
#18
Alessandra Lucchese, Paolo Albertini, Paolo Asperio, Maurizio Manuelli, Giorgio Gastaldi
Distraction osteogenesis (DO) is a technique that allows the generation of new bone in a gap between 2 vascularized bone surfaces in response to the application of graduated tensile stress across the bone gap.Distraction osteogenesis has become a routine treatment of choice to correct skeletal deformities and severe bone defects in the craniofacial complex over the past decade. Distraction osteogenesis has been successfully chosen in lengthening the maxilla and the mandible; in the maxilla and recently in the mandible, the jawbones have been distracted and widened transversely to relieve severe anterior dental crowding and transverse discrepancies between the dental arches...
January 5, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29306776/histological-and-chemical-analyses-of-mesiodens-development-and-mineralization
#19
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/29306536/orthodontic-movement-after-regenerative-endodontic-procedure-case-report-and-long-term-observations
#20
Antonis Chaniotis
INTRODUCTION: Although regenerative treatment approaches in teeth with incomplete root formation and pulp necrosis have become part of the suggested therapeutic endodontic spectrum, little is known about the effect of orthodontic movement in the tissue that has been regenerated. Furthermore, as the number of adults undergoing orthodontic treatment increases, there is an increasing need to investigate the changes that these tissues may undergo during orthodontic movement. Here we describe the alterations observed after the application of orthodontic forces in a case of an apically root-fractured necrotic immature root that had been managed with regenerative endodontic procedures in the past...
January 3, 2018: Journal of Endodontics
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