Academic literature on the topic 'Maxillofacial prothesis'

The absence of an eyeball results in physical, psychosocial and functional alterations on an individual. Therefore, rehabilitation procedures are essential to repair the patient’s self-esteem, self-confidence and physiological features. The aim of this study is to describe a case of ocular prosthetic rehabilitation in a pediatric patient. A female teenager, 17 years old, was referred to the maxillofacial prosthetic clinic to replace her former prosthesis fabricated two years ago. The new ocular prosthesis was confectioned with termopolymerizable acrylic resin and hand painted with acrylic paint on a colorless acrylic ocular bottom. The prosthesis was installed and the instructions were explained. In teenage patients the prothesis must be elaborated as soon as possible with periodic replacements in accordance with the growth period. The awareness of legal guardians and patients is essential to the success of the treatment in pediatric patients. In the present case, the patient was satisfied with the aesthetic and functional outcome.

Latar belakang masalah. Restorasi dari cacat masalah. Restorasi dari cacat yang disebabkan tumor di daerah fasial sangat menantang bagi dokter bedah dan ahli prostodonti. Maxillofacial prosthetics adalah cabang kedokteran gigi yang berhubungan dengan cacat baik kongenital maupun yang didapat pada kepala dan leher. Cacat yang didapatkan dibagi menjadi cacat intraoral dan ekstraoral. Cacat intraoral meliputi mandibula, lidah, palatum, keras, sedangkan cacat ekstraoral meliputi daerah lainnya pada kepala dan leher. Tujuan. Laporan kasus ini adalah untuk rehabilitasi daerah wajah pasien dengan memperbaiki fungsi dan estetik dengan membuat protesa maksilofasial hidung sehingga pasien tidak merasa malu. Laporan kasus. Pasien laki-laki, 74 tahun datang atas kemauan sendiri, dan rujukan dari THT ingin dibuatkan hidung dan langit-langit atas buatan karena hidung sudah diamputasi. Dibuatkan prothesa maksilofasial hidung dari bahan silikon karena mempunyai tekstur yang hampir sama dengan kulit, kemudian dipasang kaitan magnet yang dilekatkan dengan obturator sehingga retensi bertambah baik. Protesa dipasang pada kacamata agar mudah cara menggunakan. Kesimpulan. Pasien merasa lebih nyaman ketika bernafas dan berbicara setelah memakai protesa maksilofasial hidung dengan retensi magnet ini. Protesa maksilofasial dapat membantu pasien baik dari sisi estetik maupun fungsional. Background. Restoration of facial defects resulting from ablation of facial neoplasm or anyother reasons is a challenge for the head and neck surgeon, plastic surgeon and prosthontist. Maxillofacial prosthetics is a branch of dentistry that deals with congenital and acquired defects of the head and neck. Acquired defects can be divided into intraoral and extraoral. Intraoral defects may involve the mandible, tongue, soft palate, or hard palate, while extraoral defects may involve any other area of the head or neck. The aim. Of making maxillofacial prosthetics is to make better aesthetics and functional so the patients will not be ashamed with their appearance. Case report. A man age 74 years old came to the prosthodontics clinic of RSGMP Prof. Soedomo, bringing reference letter from ear nose and throat specialist (ENT). She wants to make a nose prostheses because her nose was amputated. Nose prostheses with magnetic attachmet has been made for this patient using silicon material which have almost the same texture as the original one. This prostheses was attached on eye glasses so the patient can use and remove it easily. The result of using nose prostheses is the patient has better aesthetic. Beside that the function of speech and breathing can also be aided. So the conclusion is that the usage of maxillofacial prosthetic on post amputated nose patient can aid both aesthetic and functional.

Purposes: The rehabilitation of oral function impairments secondary to acquired defects following segmental mandibulectomy continues to be a major challenge. The success in rehabilitating patients who had undergone tumour resection depends upon the nature and extent of the surgical defect, treatment plan, type of prothesis and patient co-operation. Removable dentures supported by remaining teeth and/or gum are often unstable and rarely satisfactory. However, given the recent advances in maxillofacial prosthetics and reconstructive surgery, it is possible to restore most individuals to nearly normal anatomy and function with immediate vascularized bone graft reconstruction followed by rehabilitation with removable or fixed implant-supported prosthesis. Case report: This case report emphasises the truly multidisciplinary approach, as it describes the prosthodontic rehabilitation of a patient with history of a segmental mandibulectomy that involved the use of a vascularized bone graft, to reconstruct the mandible, and an implant-supported fixed partial denture to restore oral function. ​Conclusions: Prosthetic rehabilitation with dental implants and fixed implant-supported prosthesis is a valid tool advocated by several authors as they provide stability with enhanced masticatory efficiency as well as aesthetics, hence providing the best dental rehabilitation with a stabilized or immobilized prothesis.

Abstract Background Various surface treatment options have been adopted with the aim to improve osseointegration, reducing the overall treatment time. Implant stability of early loaded implants with different modified surfaces was compared in the present study. Methods Patients were selected from the Department of Oro-Maxillofacial Surgery and Stomatology at Semmelweis University. Patients randomly received SA (alumina sandblasted and acid-etched), NH (bioabsorbable apatite nanocoating) or SLA (large-grit sandblasted and acid-etched) surface implants. Outcome measures were: implant success, implant stability, and periodontal parameters. The implant stability was measured at the time of implant placement (primary stability) and six weeks after (prothesis delivery, secondary stability). Osstell and Periotest were applied to take all the measurements. The primary and secondary stability were compared in the three study groups Finally the periimplant probing depth appearing after three months of loading was checked on 6 points around to the implant-supported prostheses. Shapiro–Wilk and Mann–Whitney tests were used for the comparison between the study groups. Results A total of 75 implants with different length and diameter were inserted into various positions. One implant failed spontaneously at the fourth week after implant placement. The survival rate was 98,7%. Comparing the primary and secondary stability values, the data were significantly improved in every groups. The difference was the highest in the NH group, however, this difference was not significant compared to the two other groups. Good periodontal parameters were experienced in all the tested implants, independently by the groups. Conclusions With the limitation of the present study, all the implants showed improved stability six weeks after implant placement. A trend of higher result was found for the NH group. Further studies with longer follow-up are needed to confirm this preliminary results. Trial registration: Current Controlled Trials ISRCTN13181677; the date of registration: 04/03/2021. Retrospectively registered.

Indiana University-Purdue University Indianapolis (IUPUI)
Background: VST-50 (a room temperature-vulcanizing silicone (RTV) by Factor II Inc.) has long been proposed as a potential alternative material for MDX4-4210, another RTV by Dow Corning Corp. and the current material of choice for maxillofacial prosthesis. Though VST-50 has similar chemistry and flexibility as MDX4-4210, its mechanical properties is still too low for it to be used in the clinic. An improvement in the mechanical property of VST-50 is a critical step to bring the material to clinical application. Objective: To investigate the effect of AEROSIL® R 812S (colloid silica) addition on the mechanical properties of VST-50 and compared to that of MDX4-4210. Methods: The VST-50 was mixed with AEROSIL® R 812S at 2 or 4 parts per hundred parts of rubber. That material was mixed with the catalyst under vacuum. The mixture was poured onto a machined plastic mold to produce a silicone sheet 3.0 ± 0.2 mm thick. All samples were prepared by manufacturer recommended method. Testing samples were prepared and tested following ISO 37 for tensile strength, ASTM D624 for tear strength and ASTM D2240 for shore A hardness test. One way ANOVA was used to compare the groups (Alpha=0.05). Result: Significant differences (P<0.001) were found between MDX4-4210 and modified VST-50 groups. The mean value of tensile strength, tear strength and hardness of VST-50 (4phr colloid silica) were 7.43(MPa), 34.82(N/mm) and 40.4 respectively, compared to MDX4-4210 were 3.67(MPa), 5.48(N/mm) and 31.5, respectively. Conclusion: Modified VST-50 with 4phr silica revealed improved mechanical properties to use as a maxillofacial prosthetic silicone elastomer.