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Xing Zhou Qu, Ming Yi Wang, Hui Shan Ong, Chen Ping Zhang
OBJECTIVES: This study aimed to evaluate the stability of prostheses supported by zygoma implants and remaining teeth for subjects who had undergone hemi-maxillectomy. METHODS: Ten patients were included in the study. Oral rehabilitation was performed using a temporary prosthesis that was supported by remaining teeth for the first three months. Then, a zygoma implant was placed to provide support for a final prosthesis in addition to the remaining teeth. Each prosthesis was tailor-made according to biomechanical three-dimensional finite element analysis results...
October 1, 2016: Clinics
R Crippa, M Paglia, F Ferrante, A Ottonello, F Angiero
: BACKGROUND Often breastfeeding problems experienced by mothers and their babies may be attributed to the abnormal attachment of the infant's tongue (ankyloglossia) and/or maxillary lip-tie. Proper breastfeeding depends upon an infant's ability to correctly latch onto its mother's breast. If born with oral soft tissue abnormalities such as tongue-tie or lip-tie, it may be almost impossible for the infant to breastfeed. During the oral evaluation of an infant presenting with breastfeeding problems, one factor that is often overlooked and undiagnosed - and thus untreated - is the attachment of the upper lip to the maxillary gingival tissue...
September 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
H Oda, M Sandou, C-M Lin, M Kamata, T Kawata
AIM: The reported effects of Bionator treatment in patients with mandibular retrognathism are conflicting. This study evaluated the changes in craniofacial morphology resulting from treatment with a Bionator, based on measurement percentiles previously reported, to clarify the mechanism of the effect of this commonly used functional device. MATERIALS AND METHODS: Study Design: Retrospective. SETTING: A private orthodontic clinic. PARTICIPANTS: Forty-two children (mean age, 10...
September 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
A Mulic, Ø Fredriksen, I D Jacobsen, A B Tveit, I Espelid, C G Crossner
AIM: To study the prevalence, distribution and severity of dental erosion among 16-year-old adolescents in the Troms region of Norway. MATERIALS AND METHODS: Study design: The participants were recruited through the Tromsø-study ("Fit Futures"), and 392 16-year-olds were examined for dental erosion using clinical intraoral photographs. Three calibrated clinicians used the Visual Erosion Dental Examination (VEDE) system to register and grade the dental erosive wear...
September 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
Venkatraman Bhat, Jenna Devere, Athira Ramakrishanan, Moni A Kuriakose
A case of malignant cutaneous lesion of the face diagnosed initially as sebaceous carcinoma, subsequently proven to be squamous cell carcinoma is presented. Patient was initially evaluated at an outside institution by computed tomography, which indicated extension of lesion to the maxillary sinus. Patient underwent local resection. Further imaging by magnetic resonance imaging was done for recurrent tumour. Examination revealed extensive, large volume, perineural extension of the disease via infraorbital nerve to the cavernous sinus...
September 2016: Journal of Maxillofacial and Oral Surgery
Vinay V Kumar, P C Jacob, Vikram Kekatpure, Naveen Hedne, Felix P Koch, Moni A Kuriakose
AIM: The aim of this clinical paper is to introduce a technique to plan for functional maxillofacial reconstructions. MATERIALS AND METHODS: Preoperative dental casts were made of the patient and mock surgery performed on the casts. A fibula analogue was then placed in an ideal functional reconstruction position. New dentures were fabricated on the fibula analogue and drill holes for the placement of implants were placed through the denture. This denture formed as a guide to position the fibula transplant during surgery...
September 2016: Journal of Maxillofacial and Oral Surgery
Hari Ram, Hardik Makadia, Gagan Mehta, Shadab Mohammad, Rakesh Kumar Singh, Nimisha Singh, Geeta Singh
INTRODUCTION: The term oro-antral fistula is understood to mean of fistular canal covered with epithelia which may or may not be filled with granulation tissue or polyposis of the sinus mucous membrane. With the presence of a fistula the sinus is permanently open, which enables the passage of microbial flora of the oral cavity into the maxillary sinus and the occurrence of inflammation with all possible consequences. Every now and then various researchers have proposed innumerable techniques to treat this defect...
September 2016: Journal of Maxillofacial and Oral Surgery
H Chen, T Zhao, Y Wang, Y C Sun
OBJECTIVE: To establish a digital method for production of custom trays for edentulous jaws using fused deposition modeling (FDM) based on three-dimensional (3D) scans of primary jaw impressions, and to quantitatively evaluate the accuracy. METHODS: A red modeling compound was used to make a primary impression of a standard maxillary edentulous plaster model. The plaster model data and the primary impression tissue surface data were obtained using a 3D scanner. In the Gemomagic 2012 software, several commands were used, such as interactive drawing curves, partial filling holes, local offset, bodily offset, bodily shell, to imitate clinical procedures of drawing tray boundary, filling undercut, buffer, and generating the tray body...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Stefan Dippel, Martin Kollmann, Georg Oberhofer, Alice Montino, Carolin Knoll, Milosz Krala, Karl-Heinz Rexer, Sergius Frank, Robert Kumpf, Joachim Schachtner, Ernst A Wimmer
BACKGROUND: The red flour beetle Tribolium castaneum is an emerging insect model organism representing the largest insect order, Coleoptera, which encompasses several serious agricultural and forest pests. Despite the ecological and economic importance of beetles, most insect olfaction studies have so far focused on dipteran, lepidopteran, or hymenopteran systems. RESULTS: Here, we present the first detailed morphological description of a coleopteran olfactory pathway in combination with genome-wide expression analysis of the relevant gene families involved in chemoreception...
October 17, 2016: BMC Biology
Anna Elander, Christina Persson, Jan Lilja, Hans Mark
A staged protocol for isolated cleft palate (CPO), comprising the early repair of the soft palate at 6 months and delayed repair of the eventual cleft in the hard palate until 4 years, designed to improve maxillary growth, was introduced. CPO is frequently associated with additional congenital conditions. The study evaluates this surgical protocol for clefts in the soft palate (CPS) and for clefts in the hard and soft palate (CPH), with or without additional malformation, regarding primary and secondary surgical interventions needed for cleft closure and for correction of velopharyngeal insufficiency until 10 years of age...
October 18, 2016: Journal of Plastic Surgery and Hand Surgery
Hideyuki Suenaga, Asako Taniguchi, Kazumichi Yonenaga, Kazuto Hoshi, Tsuyoshi Takato
INTRODUCTION: Computer-assisted preoperative simulation surgery is employed to plan and interact with the 3D images during the orthognathic procedure. It is useful for positioning and fixation of maxilla by a plate. We report a case of maxillary retrusion by a bilateral cleft lip and palate, in which a 2-stage orthognathic procedure (maxillary advancement by distraction technique and mandibular setback surgery) was performed following a computer-assisted preoperative simulation planning to achieve the positioning and fixation of the plate...
October 4, 2016: International Journal of Surgery Case Reports
Ahmad S Burhan, Fehmieh R Nawaya
BACKGROUND: Cleft lip and palate (CLP) anomaly is one of the most prevalent congenital defects causing disturbances of dental arch dimensions. This study aimed at investigating differences in these dimensions between preschool children with cleft lip/palate and a matched control group representing healthy individuals with normal occlusion (NO). MATERIALS AND METHODS: The sample of this cross-sectional analytical study consisted of 108 plaster models of children aged from 4 to 5...
September 2016: Journal of the Egyptian Public Health Association
Ying Yuan, Jingbo Wang, Yingwei Wu, Guojun Li, Xiaofeng Tao
Based on the histopathologic origin, malignant maxillary neoplasms may share some clinical characteristics but have different biological behavior, treatments, and prognoses. The aim of the present study was to explore the association between CT characteristics and tissue origin of primary maxillary cancer (MC). A retrospective review of CT findings was performed in patients diagnosed with MC between January 1, 2005 and December 31, 2013. Univariate and multivariable logistic regression analyses were performed to determine the association between tissue of origin and CT characteristics, with adjustment for possible confounding factors...
October 2016: Medicine (Baltimore)
Osman Sabuncuoglu, Mustafa Yasin Irmak
It has been more than 10 years since the proposal of attention deficit/hyperactivity disorder (ADHD) model as an explanatory construct for traumatic dental injuries (TDIs) in children. The aim of this review was to address developments in the study of the issue after 2005 to 2016. A systematic literature search covering the period from 2005 to 2016 was conducted on PubMed, the Cochrane library and Google Scholar using relevant keywords. Fourteen studies exploring the relationship between ADHD and TDIs from 2005 and onwards (including the proposal paper) were identified...
October 17, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Erica Dos Santos Carvalho, Rogério Hadid Rosa, Flávia de Moura Pereira, Ana Lia Anbinder, Isabel Mello, Sandra Marcia Habitante, Denise Pontes Raldi
The search for effective protocols to reduce the incidence of root resorptions and allow periodontal ligament repair is still challenging, given the unpredictable outcome of late tooth replantation. The aim of this study was to assess the effects of both high-power diode laser irradiation (DL) and basic fibroblast growth factor (FGF) on the periodontal healing of replanted teeth after extended extra-oral dry time METHODS: Maxillary incisors of 50 male rats were extracted and assigned to three experimental and two control groups (n = 10)...
October 17, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Michael Clayton May, Paul Nielsen Andrews, Shadi Daher, Uday Nitin Reebye
BACKGROUND: Oral health care of patients with acquired immune deficiency syndrome (AIDS) due to human immunodeficiency virus (HIV) is a growing area of concern, taking into consideration the increased life expectancy of patients resulting from antiretroviral therapy. There is insufficient literature regarding the impact of dental implants in AIDS patients. This study investigated the long-term clinical outcome of implant placement in patients diagnosed with AIDS. METHODS: This monocentric study included AIDS patients with CD4 <200 cells/μL, age 18 years or older, and a minimum of one edentulous space requiring implant...
December 2016: Int J Implant Dent
Takahiro Kaneko, Satoshi Nakamura, Shunsuke Hino, Norio Horie, Tetsuo Shimoyama
BACKGROUND: Sinus lift is a bone augmentation procedure that improves the alveolar crest height in an atrophic posterior maxilla. However, the regenerated bone volume can vary and generally has a tendency to decrease after sinus operation. This article describes nongrafted maxillary sinus lift using a bioresorbable unsintered hydroxyapatite combined with poly L-lactide (HA/PLLA) mesh plate device and dental implant placement in an atrophic posterior maxilla, after which continuous bone gain was observed around the implant apex during a postoperative follow-up period of 3 years...
December 2016: Int J Implant Dent
Tsuneji Okada, Toru Kanai, Noriko Tachikawa, Motohiro Munakata, Shohei Kasugai
BACKGROUND: The long-term stability of maxillary sinus floor augmentation with β-TCP remains largely unknown. We report the long-term assessment of volumetric changes in maxillary sinus floor augmentation with β-TCP by cone-beam computed tomography (CBCT). METHODS: The subjects included 30 patients who underwent maxillary sinus floor augmentation using β-TCP and 58 implant placement for unilateral maxillary defect, simultaneously. Volumetric changes in β-TCP and the height of peri-implant bone were analyzed by CBCT...
December 2016: Int J Implant Dent
Lorenzo Trevisiol, Pasquale Procacci, Antonio D'Agostino, Francesca Ferrari, Daniele De Santis, Pier Francesco Nocini
PURPOSE: Several authors have described zygoma implants as a reliable surgical option to rehabilitate severe maxillary defects in case of extreme atrophy or oncological resections. The aim of this study is to report a new technical approach to the rehabilitation of a complex oronasal defect by means of a zygoma-implant-supported full-arch dental prosthesis combined with a nasal epithesis. PATIENTS AND METHODS: The patient presented with a subtotal bilateral maxillectomy and total rhinectomy defect because of a squamous cell carcinoma of the nose...
December 2016: Int J Implant Dent
Viviane Rozeira Crivellaro, João César Zielak, Tatiana Miranda Deliberador, Naylin Danyele de Oliveira, Felipe Rychuv Santos, Carmen Lucia Mueller Storrer
Rehabilitation of edentulous posterior maxilla with implant-supported prostheses frequently presents a challenge to dentists. This is due to insufficient bone within the region, in addition to other limiting factors such as anatomical pneumatization of the maxillary sinus. Thus, grafting of the maxillary sinus is a common procedure used to counteract these problems. Regardless of the type of biomaterial used, the success of the procedure is dependent on the formation of high-quality bone. Therefore, vascularization is a key factor for successful grafting and for the long-term maintenance of the treatment...
December 2016: Int J Implant Dent
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