RESUMO
Background: Impacts of primary oncology surgical procedure can impede restoration objectives. Restoring oral function, comfort and aesthetics is a challenge due to limitations in the restorative treatment options. Methodology: Literature review on the responsibilities, role of maxillofacial prosthodontist, materails and retentive aids used for prosthesis, classification of maxillofacial prostheses, recent advancements in MFP and Workflow for the fabrication of obturator prostheses in the COVID-19 pandemic scenario. Case report on the fabrication of Holllow bulb definitive obturator during pandemic crisis. A 47 years old male patient reported for post-surgical evaluation in maxillary posterior region of oral cavity. The patient had partial maxillectomysurgical procedure of squamous cell carcinoma in the palate 5 years back. To replace the gap created, the patient was using interim obturator. He had facial asymmetry and collapse. Prosthodontic rehabilitation with one piece closed hollow bulb obturator was planned & subsequently fabricated for the patient. For our case considering the feasibility & ease of manipulation, heat activated acrylic resin was used for this particular patient for rehabilitation. The method described is easy, simple, time saving & economical. Bulb portion was hollow & made of heat cure resin, so weight was less & less chances of tissue irritation. Results: With the Covid-19 infection protocol measures taken definitive obturator was given to the maxillectomy patient to restore aesthetics, function and comfort as well. After insertion of prostheses mastication, deglutition and phonetics were improved. Breathing problems were resolved and aesthetics was improved. Conclusion: A simplified technical approach for the treatment of a patient with palatal defect of and other supportive structure has been presented in Covid-19 situation following the described infection prevention protocols. The technique presented offers a method of obtaining a detailed impression of the defect and promptly provides the patient with a light weight, easyto-use and flexible tissue-tolerant obturator.
RESUMO
The Covid-19 pandemic over the past year has raised concern regarding the precautions needed to be taken to prevent cross-infection in the field of dentistry, as the virus is highly contagious and life-Threatening. At least half of the population above the age of 50 years are denture wearers. These dentures act as a base for the colonization of microorganisms, hence raise the chances of cross-contamination. When the patient wears contaminated dentures, the most common manifestation it may cause is oral candidiasis or denture-related stomatitis, this fungal infection leads to white or red sores, bleeding, swelling and burning sensations in the oral cavity. As the patient s oral cavity is a sterile tissue with mucous membranes, incompetent sterilisation of dentures bears the risk associated with the break of host barriers and carrying of environmental pathogens (e.g., Pseudomonas aeruginosa). The application of an improper sterilisation method in the maintenance of dental appliance mainly the complete denture concerns not only the patients but also the dental personnel and prosthesis laboratory. The first studies on microwave sterilisation of dentures were performed to confirm the potent of microwave sterilisation in preventing microorganisms attached to complete dentures prosthesis. Using different methods, definite results were obtained by studies, confirming that microwave irradiation can be an efficient technique in sterilizing the complete dentures prosthesis. Thus, executing microwave irradiation of a complete denture before it is brought to a lab, and immediately before it is placed in the patient s mouth, acts as a means of infection prevention system for all individuals. Microwave sterilisation of dentures has been recommended for denture sterilisation but its effect on the dimensional property of a complete denture still needs to be focused on. Hence, the current review presents the effect of microwave sterilisation on the physical properties, mainly the dimensional stability of the complete denture base. © (2022) Society for Biomaterials & Artificial Organs #20051922.