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Ádám Berniczei-Roykó, Jan-Hendrik Tappe, Axel Krinner, Tomasz Gredes, András Végh, Katona Gábor, Kamila Linkowska-Świdzińska, Ute Ulrike Botzenhart
BACKGROUND Cleft defects are one of the most frequent birth-deformities of the orofacial region and they are commonly associated with anomalies of the tooth structure, size, shape, formation, eruption, and tooth number. The aim of our study was to evaluate the prevalence, distribution, and potential association of combined hypodontia in cleft-affected patients with regard to all types of teeth in both jaws in the permanent dentition. MATERIAL AND METHODS This retrospective radiographic analysis included patients with various types of clefts treated orthodontically in the Department of Orofacial Orthopedics and Orthodontics at Heim Pàl Children's Hospital, Budapest...
October 21, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Myoung Seok Lee, Jeong Yeon Cho, Sang Youn Kim, Seung Hyup Kim, Joong Shin Park, Jong Kwan Jun
Purpose: The purpose of this study was to evaluate the feasibility and usefulness of sagittal color Doppler ultrasonography (CDUS) for the diagnosis of fetal cleft lip (CL) and cleft palate (CP). Methods: We performed targeted ultrasonography on 25 fetuses with CL and CP, taking coronal and axial images of the upper lip and maxillary alveolar arch in each case. The existence of defects in and malalignment of the alveolus on the axial image, hard palate defects on the midsagittal image, and flow-through defects on CDUS taken during fetal breathing or swallowing were assessed...
August 6, 2016: Ultrasonography
G Monaco, S Cecchini, M R Gatto, G A Pelliccioni
The onset of delayed infection after lower third molar germectomy is influenced by the amount of distal space. This retrospective study aimed to determine whether the incidence of delayed onset infection is related to the space distal to the second molar. The ratio between the distal space and the crown width, measured according to the Ganss protocol on panoramic radiographs, was obtained for 218 surgical germectomies performed for orthodontic reasons in 134 patients. A delayed onset infection occurred following 20 germectomies at between 2 and 8 weeks after surgery; purulent exudates from the alveolus and swelling were present...
October 13, 2016: International Journal of Oral and Maxillofacial Surgery
G J Roode, K-W Bütow, S Naidoo
To identify the pathogenic micro-organisms that had colonised preoperatively in clefts in the soft palate and oro-nasopharynx, we retrospectively studied the preoperative microbiological profiles of 200 infants who had had primary repair of all types of cleft in the soft palate. Data from a private practice that specialises in the repair of facial clefts were extracted randomly from patients' files. We analysed the results of the culture of preoperative swabs taken from clefts in the soft palate and oro-nasopharynx, and the resistance profile of organisms towards various antibiotics...
October 10, 2016: British Journal of Oral & Maxillofacial Surgery
Sila Datta, Jay Gopal Ray, Tushar Deb, Santanu Patsa
Rhabdomyosarcoma is the malignant neoplasm of striated muscle and a relatively uncommon tumor of the oral cavity. Embryonal variety is the most common subtype, observed in children below 10 years of age but occasionally seen in adolescents and young adults. The present report describes a case of embryonal rhabdomyosarcoma in the left posterior buccal mucosa, with extension in the adjacent alveolus, soft palate, oropharynx and nasopharynx of a 17-year-old female.
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Kihwan Han, Jungheum Park, Jaehoon Choi, Daegu Son
Few studies have examined the long-term outcomes of gingivoperiosteoplasty at the age of permanent canine eruption. The success rates of gingivoperiosteoplasty vary significantly depending on the surgeon because of the difficulty of the surgical technique. Therefore, the authors utilized a simplified gingivoperiosteoplasty technique by inserting one or two large, triangular-shaped mucoperiosteal flaps on the opposite side in a tongue-in-groove or interdigitation fashion. The purpose of this study was to evaluate the long-term outcomes of this simplified gingivoperiosteoplasty technique at the age of permanent canine eruption...
September 7, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
I F P M Kappen, G K P Bittermann, R M Schouten, D Bittermann, E Etty, R Koole, M Kon, A B Mink van der Molen, C C Breugem
OBJECTIVES: The aim of this study is to evaluate long-term facial growth in adults previously treated for an isolated unilateral complete cleft lip, alveolus and palate by two-stage palatoplasty. MATERIALS AND METHODS: Unilateral cleft lip and palate (UCLP) patients of 17 years and older treated by two-stage palatoplasty were invited for long-term follow-up. During follow-up, lateral cephalograms were obtained (n = 52). Medical history was acquired from their medical files...
September 16, 2016: Clinical Oral Investigations
Heidrun Schaaf, Heiko Kerkmann, Felix Pitka, Niko Christian Bock, Sameh Attia
BACKGROUND: Tooth replantation after traumatic avulsion or transplantation is a challenge in oral surgery. A special method named auto-alloplastic replantation, in which a titanium post is used after extraoral endodontic treatment, combines several advantages. The treatment is performed in one step with no further endodontic intervention, no wide root canal instrumentation, no recontamination, and reduced endodontic infection. This is the first report on replantation of an ectopic tooth in a patient with a cleft lip and alveolus using this method...
2016: Journal of Medical Case Reports
Paul S Rosen, Oded Bahat, Stuart J Froum, Fereidoun Daftary, Howard Rosenthal, Sylvan Feldman
Craniofacial growth is an important factor to consider when providing dental implant treatment for adolescents to replace missing teeth. Ongoing longitudinal observation has demonstrated that such tooth replacements may appear intruded over time, because there may be ongoing downward and anterior movement of both the alveolus and the teeth at a rate exceeding that of the dental implant, which acts like an ankylosed unit. This case reports on a 23.5-year-old female patient who, at age 16, had orthodontics completed and was left with a space where the maxillary right lateral incisor was congenitally missing with the hope of future restoration with a dental implant...
July 2016: Compendium of Continuing Education in Dentistry
Danielle L Sobol, Alexander C Allori, Anna R Carlson, Irene J Pien, Stephanie E Watkins, Arthur S Aylsworth, Robert E Meyer, Luiz A Pimenta, Ronald P Strauss, Barry L Ramsey, Eileen Raynor, Jeffrey R Marcus
BACKGROUND: The aesthetic aspects of the cleft lip nasal deformity have been appreciated for over a century, but the functional implications of the deformity have remained largely misunderstood or underappreciated. This study aims to describe the frequency and severity of nasal obstructive symptoms among children and adolescents with cleft lip and/or palate (CL/P), addressing the hypotheses that age and cleft type/severity are associated with the development of nasal obstructive symptoms...
August 15, 2016: Plastic and Reconstructive Surgery
Achille Tarsitano, Salvatore Battaglia, Leonardo Ciocca, Roberto Scotti, Riccardo Cipriani, Claudio Marchetti
The maxilla provides support to the overlying structures and contributes significantly to the overall facial appearance and to critical functions such as mastication, speech, and deglutition. Many different techniques have been used over the years to achieve this reconstructive goal. Modern computer-assisted surgery affords new methods for planning resections, as well as optimising reconstructive outcomes and functional rehabilitation. The aim of this study was to describe our experience with, and technique for, the functional, structural, and aesthetic reconstruction of maxillary bone defects using a computer-assisted design (CAD)/computer-assisted manufacturing (CAM)-printed titanium mesh to provide structural support for free flap reconstruction...
September 2016: Journal of Cranio-maxillo-facial Surgery
Marjolijn Gilijamse, Jacobus A Baart, Jan Wolff, George K Sándor, Tymour Forouzanfar
OBJECTIVE: This retrospective study evaluated survival rates, prognosis, and overall success of autotransplanted teeth in young patients missing anterior teeth as a result of trauma, agenesis, or developmental disturbances. STUDY DESIGN: Retrospective data were collected from the medical records of patients who had undergone tooth autotransplantations to anterior sites between January 2001 and December 2012. Clinical variables, such as gender, age, surgical indications, donor and recipient sites, type of anesthetics, bone augmentation, and complications during follow-up, were assessed...
June 29, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Adel M Alhadlaq
OBJECTIVE: To establish the anterior alveolar dimensions among a sample of Saudi subjects with different vertical facial heights. MATERIALS AND METHODS: Lateral cephalometric radiographs of 63 Saudi subjects (30 males and 33 females) were included in this retrospective study. The sample was divided into high angle (SN-MP ⩾ 39°), low angle (SN-MP ⩽ 28°) and average angle (30° < SN-MP < 37°) groups. The anteroposterior and vertical dimensions of the alveolus surrounding the root apex of upper and lower incisors were calculated...
April 2016: Saudi Dental Journal
Vidhya R Nair, Luis H Franco, Vineetha M Zacharia, Haaris S Khan, Chelsea E Stamm, Wu You, Denise K Marciano, Hideo Yagita, Beth Levine, Michael U Shiloh
The prevailing paradigm is that tuberculosis infection is initiated when patrolling alveolar macrophages and dendritic cells within the terminal alveolus ingest inhaled Mycobacterium tuberculosis (Mtb). However, definitive data for this model are lacking. Among the epithelial cells of the upper airway, a specialized epithelial cell known as a microfold cell (M cell) overlies various components of mucosa-associated lymphatic tissue. Here, using multiple mouse models, we show that Mtb invades via M cells to initiate infection...
August 2, 2016: Cell Reports
Nga Hoang, Gerald Nelson, David Hatcher, Snehlata Oberoi
BACKGROUND: The boundaries for orthodontic tooth movement are set by the bony support of the dentition. This study compares the mandibular anterior alveolar housing in individuals with low, average, and high mandibular plane angles before orthodontic treatment and measures alveolar bone loss and root resorption after orthodontic treatment. METHODS: Pretreatment cone-beam computed tomography (CBCT) images of 75 non-growing individuals, 25 in three groups: low-angle (sella-nasion to mandibular plane ≤28°), average-angle (30°-37°), and high-angle (≥39°), were analyzed...
December 2016: Progress in Orthodontics
Ratna Rachel Ponraj, Vinoth Abraham Korath, Nagachandran, Devaki Vijayalakshmi, Ratna Parameswaran, Priya Raman, Catherine Sunitha, Nayeemullah Khan
INTRODUCTION: One of the major limiting factors in retraction of proclined teeth is the width of the alveolus both in maxilla and mandible. AIM: The objective of this study was to assess the maxillary and mandibular anterior alveolar dimensions and to correlate with mandibular divergence in Class I bi-dento-alveolar protrusion patients. MATERIALS AND METHODS: Pretreatment lateral cephalograms (n=88) were analysed using a composite analysis with cephalometric software...
May 2016: Journal of Clinical and Diagnostic Research: JCDR
J P Verweij, D Anssari Moin, G Mensink, D Wismeijer, J P R van Merkesteyn
Autotransplantation is a valuable technique offering a physiological type of tooth replacement to patients with missing teeth. Teeth with open apices (50-75% apical closure) will regenerate with vitality following autotransplantation. The success rate following an autotransplantation is 82%. The remaining 18% can usually still be treated successfully with a simple additional treatment. The tooth survival rate 10 years after autotransplantation is higher than 90%. The use of 3D techniques makes it possible to create a pre-operative replica of the donor tooth...
July 2016: Nederlands Tijdschrift Voor Tandheelkunde
Chengyi Dai, Anfeng Zhang, Min Liu, Lin Gu, Xinwen Guo, Chunshan Song
Inspired by the vesicular structure of alveolus which has a porous nanovesicle structure facilitating the transport of oxygen and carbon dioxide, we designed a hollow nanovesicle assembly with metal-encapsulated hollow zeolite that would enhance diffusion of reactants/products and inhibit sintering and leaching of active metals. This zeolitic nanovesicle has been successfully synthesized by a strategy which involves a one-pot hydrothermal synthesis of hollow assembly of metal-containing solid zeolite crystals without a structural template and a selective desilication-recrystallization accompanied by leaching-hydrolysis to convert the metal-containing solid crystals into metal-encapsulated hollow crystals...
August 23, 2016: ACS Nano
Erik E Josberger, Pegah Hassanzadeh, Yingxin Deng, Joel Sohn, Michael J Rego, Chris T Amemiya, Marco Rolandi
In 1678, Stefano Lorenzini first described a network of organs of unknown function in the torpedo ray-the ampullae of Lorenzini (AoL). An individual ampulla consists of a pore on the skin that is open to the environment, a canal containing a jelly and leading to an alveolus with a series of electrosensing cells. The role of the AoL remained a mystery for almost 300 years until research demonstrated that skates, sharks, and rays detect very weak electric fields produced by a potential prey. The AoL jelly likely contributes to this electrosensing function, yet the exact details of this contribution remain unclear...
May 2016: Science Advances
Alejandra D van Os, Baris Karakullukcu, C René Leemans, Gyorgyi B Halmos, Jan L N Roodenburg, Stijn van Weert, Hakki Karagozoglu, Max J H Witjes
BACKGROUND: The purpose of this study was to evaluate active surveillance strategy in the clinically negative neck in maxillary squamous cell carcinoma (SCC). METHODS: One hundred fourteen consecutive patients diagnosed with oral maxillary SCC were analyzed retrospectively from 3 centers in The Netherlands. Analysis parameters included regional disease-free survival of N0 patients stratified for T classification, elective radiotherapy (RT) of the neck; and overall survival of the whole cohort, stratified by N classification; salvage neck surgery rates...
July 4, 2016: Head & Neck
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