Journal articles: 'Maxillo-facial prosthetic'

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Deshpande, S. N., S. Bhat, R. Sharma, S. Singh, and J. Fernandes. "Prosthetic rehabilitation of face following naso-orbital mycosis." Indian Journal of Plastic Surgery 39, no. 01 (January 2006): 73–75. http://dx.doi.org/10.1055/s-0039-1700467.

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AbstractSino-nasal mycosis is a known complication in patients with immunological or metabolic compromise. Mainstay of treatment includes reversal of the compromised state, systemic antifungals and repeated radical debridements assisted by serial imaging. Salvage is possible provided no cerebral extension exists on presentation. The resultant deformity following debidement causes gross morbidity and psycho-social embarrassment. Surgical reconstruction is difficult on account of co-morbid diseases. Non-surgical prosthetic rehabilitation gives fairly accurate correction in these patients. We report a case of a 48 yrs. male diabetic with sino-orbital mycosis where debridement resulted in a gross morbid defect. However effective rehabilitation was achieved using three piece maxillo-facial prosthesis.

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Abbate, Vincenzo, Umberto Committeri, Stefania Troise, Paola Bonavolontà, Luigi Angelo Vaira, Guido Gabriele, Federico Biglioli, Filippo Tarabbia, Luigi Califano, and Giovanni Dell’Aversana Orabona. "Virtual Surgical Reduction in Atrophic Edentulous Mandible Fractures: A Novel Approach Based on “in House” Digital Work-Flow." Applied Sciences 13, no. 3 (January 22, 2023): 1474. http://dx.doi.org/10.3390/app13031474.

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Atrophic edentulous mandible fractures are a challenge for maxillo-facial surgeons because of low vascularization, low bone regeneration, and lack of occlusion. Whereas occlusion is the main guide in the reduction of mandibular fractures, the aim of our study is to show the advantages of using virtual surgical planning (VSP) in surgery when the occlusal guide is absent. This work is a prospective study that shows the in-house digital workflow for the management of these fractures in the Maxillo-Facial Surgery Unit of Federico II University Hospital of Naples. Four patients who satisfied the criteria were included in the study. For each patient, the same defined CAD/CAM-based was applied. The workflow followed four steps: (1) bone segmentation and virtual reduction of fracture fragments; (2) three-dimensional printing of virtually reduced mandible and modelling of 2.4 reconstruction plate on printed resin model; (3) surgery aided by the pre-formed plate; (4) digital and clinical outcomes analysis. In the last step, a distance colour map was conducted to compare the virtual planning and postoperative CT outcome. In all cases, the discrepancies values between the two images were lower than 1.5 mm, and good clinical outcomes in terms of facial symmetry, absence of sensory disturbance, and possibility of prosthetic rehabilitation were obtained. In conclusion, the VSP, with our in-house workflow brings benefits in the management of atrophic edentulous mandible fractures in terms of the high accuracy of bone repositioning.

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Porumb, Anca, Cristian Ratiu, Simona Cavalu, and Alexandrina Muntean. "The Assessment of Ceramic Dental Materials during the Treatment of Severe Adult Cleft Palate: A Case Study." Key Engineering Materials 695 (May 2016): 46–49. http://dx.doi.org/10.4028/www.scientific.net/kem.695.46.

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The materials used in the treatment of an adult patient with severe cleft palate need to be choose very carefull, according with the biological aspects. First of all, is mandatory to choose a proper material for endodontic treatment and use a correct technique. Second, the cement used in order to fix a RPD (rapid palatinal disjunctor) has to be glass-ionomer cement, because the oral and nasal cavity are still communicating. On the other hand, the dental ceramic material used in the prosthetic treatment has to be a special one, pink-colored in those regions where cleavage is present. For this reason, the cases with cleavage need a complex treatment, usually during a few years and several steps. They need a good collaboration between doctors of different specialities: maxillo-facial surgery, orthodontics, prosthetics and plastic surgery. The aim of the present study is to underline the assessment of ceramic dental materials during the laborious treatment in the case of an adult with cleft palate, in order to obtain the best results.

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Mishra, Ananya, Kasim Mohamed, Prasanna Kumar, and Sathish Kumar Jayagandhi. "Prosthetic Rehabilitation of Maxillectomy Defects, with Single-Piece Open-Hollow Bulb Definitive Obturator." Journal of Evolution of Medical and Dental Sciences 10, no. 16 (April 19, 2021): 1169–73. http://dx.doi.org/10.14260/jemds/2021/248.

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Patients who undergo surgical resection of the maxillo-mandibular structures as a result of trauma, infection or malignancy, suffer from psycho-social setbacks which has a profound impact on their over-all quality of life. 1,2 These defects, especially those following maxillectomy, result in oroantral communication, facial deformation, impaired speech and difficulty in deglutition. For the rehabilitation of patients with such defects, surgical and prosthetic treatment options are available. As, not all patients can be successfully rehabilitated with reconstructive surgeries due to postoperative complications like graft rejection, the extent of the surgical defect and high psychological impact factor associated with repeated surgeries, prosthetic rehabilitation proves to be an alternative treatment option. The prosthetic rehabilitation of such patients is challenging as it requires restoration of the lost form, function and aesthetics, under constantly changing state of post-surgical intraoral tissues, with limited mouth opening. The maxillofacial prosthesis designed to close congenital or an acquired tissue opening, primarily of the hard palate, is known as an obturator. 3 The obturator has two functional components, one seals the surgical defect and the other replaces the lost dentoalveolarstructures.4-7 The design of an obturator may vary depending on the extent of the defect, remnant dentoalveolar complex, soft tissue undercuts and existent muscle physiology.8,9 Among the two designs, solid and hollow, hollow obturators are widely used. The bulb portion of the hollow obturator, which accommodates the surgical defect, can be open or closed9,10and its selection depends on the prosthodontist’s clinical decision-making skills and the ease of fabrication. In this article we have discussed the rehabilitated patients with single-piece, openhollow bulb definitive obturator. Patients undergo extensive maxillary surgical resections due to aggressive lesions like malignancies and deep fungal infections. Prosthetic rehabilitation of such patients with an obturator becomes of paramount importance as it separates the oropharynx from the nasopharynx, reduces the risk of recurrent infections, replaces lost dentoalveolar structures, permits intelligible speech, reinstates mastication and deglutition, restores facial contour and patient’s self-esteem. The bulb portion of the obturator extends into the defect and accommodates it, forming a hermetic seal. In this clinical report, we highlight the success of prosthetic rehabilitation of maxillectomy patients using single-piece, open-hollow bulb definitive obturator. The meticulous follow-up carried out reveals the success of the prosthesis and adds practice-based evidence to the maxillectomy rehabilitation outcome.

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Gastaldi, G. "PROSTHETIC MANAGEMENT OF PATIENTS WITH ORO-MAXILLO-FACIAL DEFECTS: A LONG-TERM FOLLOW-UP RETROSPECTIVE STUDY." Oral & Implantology 10, no. 3 (2017): 276. http://dx.doi.org/10.11138/orl/2017.10.3.276.

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Gupta, Alka, Deshraj Jain, Kartikey Tripathi, and AG Bhujle. "Dynamic visco-elastic analysis of silicone maxillo-facial prosthetic material using custom-made dynamic visco-elastometer and LASER measuring device." Journal of Indian Prosthodontic Society 9, no. 3 (2009): 127. http://dx.doi.org/10.4103/0972-4052.57081.

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Budacu, Cristian, Sorin V. Ibric Cioranu, Iulia Chiscop, Mihaela Salceanu, and Anca Melian. "Apicoectomy - Endodontical Surgical Procedure." Revista de Chimie 68, no. 11 (December 15, 2017): 2654–57. http://dx.doi.org/10.37358/rc.17.11.5948.

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The progress of fundamental medical sciences, of other medical and surgical specialties enabled a fast development pace of modern maxilla-facial surgery. Oro-maxilla-facial surgery bring together science and art in order to prevent, diagnose and cure disease, to reconstitute shapes and restore functions of the oro-maxilla-facial area often by surgery. Apical surgery is a standard surgical procedure including incision of the apex and resection of the apical and periapical diseased site, preceded or not by the correct endodontic treatment and the adequate root canal obturation. Periapical pathology is maintained in an endodontic treatment considered correct, being resolved by endodontic surgery with apicoectomy and avoiding extracting the causal tooth. In this way the area is kept as favorable as possible for future prosthetic works. It is achieved mostly in monoradicular teeth and this intervention is suitable for molars, yet the topography and the morphology of the molars make the surgery more difficult. Oral surgery and endodontics have accumulated a rich experience in maintaining the teeth on the arch for as long as possible. The study material for endodontic case selection, examination and resolving is gathered from the Clinic of Oral and Maxillo-Facial Surgery of the Spiridon Teaching Hospital over a period of two years, from 2014 to 2016; the study group for endodontic therapy and surgery comprises 59 patients. To receive apicoectomy, the tooth and its periodontium should meet certain conditions after apicoectomy, the operated root needs to keep an osseous implantation length equal to two thirds or at least half its initial length. Complex oral rehabilitation of various clinical cases met in dental surgery is a challenge for the dental surgeon due to the various degrees of impairment of all system elements. The emerging malfunction is difficult to diagnose and to treat, asking for dental surgeon�s special experience and clinician skills.

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Cicuttin, Enrico, Massimo Sartelli, Emanuele Scozzafava, Dario Tartaglia, Camilla Cremonini, Bruno Brevi, Niccolò Ramacciotti, et al. "Antibiotic Prophylaxis in Torso, Maxillofacial, and Skin Traumatic Lesions: A Systematic Review of Recent Evidence." Antibiotics 11, no. 2 (January 21, 2022): 139. http://dx.doi.org/10.3390/antibiotics11020139.

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Use of antibiotic prophylaxis (AP) in trauma patients is a common practice. However, considering the increasing rates of antibiotic resistance, AP use should be questioned and limited only to specific cases. We performed a systematic review of recent literature (from year 2000), aiming to summarize the state of the art on efficacy and appropriateness of AP in patients with traumatic injuries of torso, maxillofacial complex and skin (including burns). Twenty-six articles were selected. In thoracic trauma, AP could be useful in reducing infective complications in tube thoracostomy for penetrating trauma. In maxillo-facial trauma, AP could find a role in the peri-operative trauma setting in the case of a graft or prosthetic implant. In abdominal trauma, there is a lack of consensus on the definition of contamination, infection, antibiotic therapy, and prophylaxis. In burned patients, routine AP is not suggested. In the case of human bites to the extremities, AP could find an indication. Future studies should focus on the subcategories of patients at higher risk of infection, identifying those who would benefit from AP. Attention to antimicrobial stewardship and guidelines focused on AP in trauma are required, to reduce antibiotic abuse, and increase quality research.

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Reddy, JRamesh, BMuthu Kumar, SC Ahila, and Suresh Rajendiran. "Materials in maxillo-facial prosthesis." Journal of Indian Academy of Dental Specialist Researchers 2, no. 1 (2015): 1. http://dx.doi.org/10.4103/2229-3019.166094.

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10

Sekou, Singare, Shou Yan Zhong, Guang Hui Xu, Wei Ping Wang, and Jian Jun Zhou. "CAD-CAM Prosthesis in Maxillo-Facial Surgery." Advanced Materials Research 139-141 (October 2010): 1241–44. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.1241.

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To improve the maxillofacial surgery outcome, modern manufacturing methods such as rapid prototyping (RP), reverse engineering (RE) and medical imaging data have been utilised to manufacture custom-made prostheses after previous failed reconstructive surgery. After acquisition of data, an individual computer-based 3D model of the bony defect was generated and transferred into RE software to create the prosthesis CAD model. Then the physical model of the prosthesis was fabricated by RP technique. The precise fit of the prosthesis was evaluated using the prosthesis and skull models. The prosthesis was then directly used in investment casting such as “Quick Cast” pattern to produce the titanium model. In the clinical reports presented here, reconstructions of one patient with large mandible bone defects were performed using this method. The custom prostheses perfectly fit the defects during the operations, and surgery time was reduced. These cases showed that the prefabrication of a prosthesis using modern manufacturing technology is an effective method for maxillofacial defect reconstruction.

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Budea, Camelia Melania, Marius Pricop, Felix Bratosin, Iulia Bogdan, Miriam Saenger, Ovidiu Ciorica, Laurentiu Braescu, et al. "Antibacterial and Antifungal Management in Relation to the Clinical Characteristics of Elderly Patients with Infective Endocarditis: A Retrospective Analysis." Antibiotics 11, no. 7 (July 15, 2022): 956. http://dx.doi.org/10.3390/antibiotics11070956.

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Infective endocarditis (IE) is increasingly prevalent in the elderly, particularly due to the rising frequency of invasive procedures and intracardiac devices placed on these individuals. Several investigations have highlighted the unique clinical and echocardiographic characteristics, the microorganisms implicated, and the prognosis of IE in the elderly. In addition, the old population seems to be fairly diverse, ranging from healthy individuals with no medical history to patients with many ailments and those who are immobile. Furthermore, the therapy of IE in this group has not been well investigated, and worldwide recommendations do not propose tailoring the treatment approach to the patient’s functional state and comorbid conditions. A multicenter research study was designed as a retrospective study of hospitalized patients with infective endocarditis, aiming to examine the characteristics of elderly patients over 65 years old with infective endocarditis in relation to the antibiotic and antifungal treatments administered, as well as to quantify the incidence of treatment resistance, adverse effects, and mortality in comparison to patients younger than 65. Based on a convenience sampling method, we included in the analysis a total of 78 patients younger than 65 and 131 patients older than 65 years. A total of 140 patients had endocarditis on native valves and 69 patients had endocarditis on prosthetic valves. A significantly higher proportion of elderly patients had signs of heart failure on admission, and the mortality rate was significantly higher in the elderly population. A majority of infections had a vascular cause, followed by dental, maxillo-facial, and ENT interventions. The most common complications of IE were systemic sepsis (48.1% of patients older than 65 years vs. 30.8% in the younger group). The most frequent bacterium involved was Staphylococcus aureus, followed by Streptococcus spp. in a total of more than 50% of all patients. The most commonly used antibiotics were cephalosporins in 33.5% of cases, followed by penicillin in 31.2% and glycopeptides in 28.7%, while Fluconazole was the initial option of treatment for fungal endocarditis in 24.9% of cases. Heart failure at admission (OR = 4.07), the development of septic shock (OR = 6.19), treatment nephrotoxicity (OR = 3.14), severe treatment complications (OR = 4.65), and antibiotic resistance (OR = 3.24) were significant independent risk factors for mortality in the elderly patients. Even though therapeutic management was initiated sooner in the older patients, the associated complications and mortality rate remained significantly greater than those in the patients under 65 years old.

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Singare, Sekou, Liu Yaxiong, Li Dichen, Lu Bingheng, He Sanhu, and Li Gang. "Fabrication of customised maxillo‐facial prosthesis using computer‐aided design and rapid prototyping techniques." Rapid Prototyping Journal 12, no. 4 (August 2006): 206–13. http://dx.doi.org/10.1108/13552540610682714.

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13

Keyf, Filiz. "Change in a Maxillo-Facial Prosthesis Material Effecting from Environmental Factors: A Clinical Report." Journal of Biomaterials Applications 16, no. 4 (April 2002): 259–66. http://dx.doi.org/10.1106/088532802024245.

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Pradhan, Resina, Anjana Rajbhandari, and Situ Lal Shrestha. "McNamara’s Cephalometric Analysis of Adult Brahmins of Kathmandu." Orthodontic Journal of Nepal 6, no. 2 (December 31, 2016): 10–14. http://dx.doi.org/10.3126/ojn.v6i2.17413.

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Introduction: Appropriate comparison of an individual’s craniofacial structure can be made when evaluated relative to his/her comparable peer group. However, McNamara’s Caucasian norms are being used for adult Brahmins cephalometric analysis.Objective: To determine cephalometric norms using McNamara’s analysis in adult Brahmins of Kathmandu and to compare the values within the group and with Caucasians. Materials & Method: Screening of 850 individuals aged 18-27 years was performed. Inclusion criteria were Angle’s Class I molar and canine relation with normal overjet and overbite, symmetric face with acceptable profile, without craniofacial abnormalities, orthodontic/surgical treatment in the past and without proximal caries or prosthesis. Lateral digital cephalometric radiographs of 41 selected adult Brahmins of Kathmandu (23 males and 18 females) were manually traced. Comparative test was conducted within adult Brahmins of Kathmandu and with Caucasian group at significance level p≤0.05.Result: Adult male Brahmins of Kathmandu were found to have larger craniofacial measurements: Effective Mandibular Length (p≤0.001), Maxillo-mandibular Differential (p≤0.05) and Lower Anterior Facial Height (p≤0.01) than adult female Brahmins of Kathmandu. Adult Brahmins were found to have smaller craniofacial measurements compared to Caucasians.Conclusion: Gender and ethnic diversity must be considered during orthodontic diagnosis and treatment planning for an individual.

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Fedirko, Igor, and Nataliia Kosiuk. "Helpful Hand of a Canadian Medical Team for the Severely Wounded Ukrainian Defenders." Journal of Diagnostics and Treatment of Oral and Maxillofacial Pathology 2, no. 1 (February 28, 2019): 36–37. http://dx.doi.org/10.23999/j.dtomp.2019.2.1.

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Oleh M. Antonyshyn, MD, FRCS(C) is a Professor in the Division of Plastic Surgery (University of Toronto) with a subspecialty practice in craniomaxillofacial surgery. Dr. Antonyshyn established a Clinical Fellowship in Adult Craniofacial Surgery in 1993, providing post-residency specialized training in adult craniofacial surgery to candidates from Canada, the United States, Ireland, Israel and the Middle East. In 2008 he was awarded the A. Freiberg Plastic Surgery Resident Teaching Award. Also, Dr. Antonyshyn serves as: • Head, Adult Craniofacial Program (founded by Dr. Antonyshyn in 1996), Sunnybrook Hospital (Toronto, ON, Canada). • Affiliate Scientist, Physical Sciences, Trauma, Emergency & Critical Care Research Program, Sunnybrook Research Institute (Toronto, ON, Canada). • Full time clinical staff, Division of Plastic Surgery, Sunnybrook Health Sciences Centre (Toronto, ON, Canada). • Member, Global Advisory Board of the Advanced Cranio-Maxillo-Facial Forum. • Member, Examination Board in Plastic Surgery for the Royal College. The impact of contribution of Dr. Antonyshyn, his medical team (Fig), and a Canada-Ukrainian Foundation Mission is enormous. A lot of saved faces, given hope for a better quality of life due to novelty complex rehabilitation operations, multiple prosthesis and plenty of minor esthetic procedures for the Ukrainian defenders. The statistics of the Canadian team (doctors, medical assistants) from 2014 to 2018 is numerous, and keeps increasing. In the National Military Medical Clinical Center “Main Military Clinical Hospital” (Kyiv, Ukraine) together with the Ukrainian team of Maxillofacial, Neurocranial, Orthopedic, and Otorhinolaryngology Departments were performed 346 consultations and 239 surgeries to the severely wounded defenders of Ukraine. Predominant amount of patients (85 percent) consists of patients with post-traumatic defects, maxillofacial deformities, cranial, and limbs` injuries. So, the grateful words for Dr. Antonyshyn and Canadian team are endless.

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Rashid, Farah, Aparna Barman, Taseef Hasan Farook, Nafij Bin Jamayet, Mohd Firdaus Bin Yhaya, and Mohammad Khursheed Alam. "Factors affecting color stability of maxillofacial prosthetic silicone elastomer: A systematic review and meta-analysis." Journal of Elastomers & Plastics, August 13, 2020, 009524432094679. http://dx.doi.org/10.1177/0095244320946790.

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Purpose: This systematic review and meta-analysis explored the factors involved in the color stability and degradation of Maxillo-Facial Prosthetic Silicone Elastomer (MFPSE). Further exploration was done to analyze past literature discussing the potential benefits to color stability when nano-particles were combined with pigmented MFPSE. Method: The search for the articles was done according to PRISMA guidelines. Articles were searched from “Scopus” and “Web of Sciences” from the year 1970 to 2019. Searches were carried out by two reviewers until November 2019. Articles for systematic review were selected based on predefined eligibility criteria. Information regarding weathering conditions, pigments and filler-particle inclusion were extracted as appropriate. Further screening was done for meta-analyze case-control studies of red, blue and yellow pigments according to predefined scoring criteria. Meta-analysis was conducted on case-control studies that incorporated 5%,10% and 15% TiO2 in MFPSE with the said pigments and was carried out using Cochrane Review Manager 5.3. Results: 30 studies were selected for systematic review and 6 studies were eligible for meta-analysis. The most prominent influencers of color stability were nano-fillers and the type of color used in the mixing. Furthermore, experimental conditions, weathering, color of investment plaster and the method of color detection all affected the degree of degradation. There was an overall significant difference found when TiO2 was incorporated with the pigmented silicone. There is significant difference when 10% ( P = 0.0004) TiO2 is incorporated with the red pigment, 5% ( P = 0.03) TiO2 with the yellow and 10% ( P < 0.0001) and 15% ( P = 0.02) TiO2 with the blue pigment. Conclusion: Type of pigment and nano-filler incorporated into the silicone play a role in influencing color stability. Incorporation of 10% TiO2 with red pigment,5% with yellow pigment and 10% or 15% TiO2 with blue pigment provided some protection to the silicone elastomer from color degradation.

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OTTRIA, L. "Maxillo-facial prosthesis (P.M.F.): in a case of oral-nasal communication post-surgery and post-radiotherapy." Oral & Implantology, 2014. http://dx.doi.org/10.11138/orl/2014.7.2.046.

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Journal articles on the topic 'Maxillo-facial prosthetic'

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