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(searched for: Closed Hollow Bulb Obturator: Laboratory Procedures)
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, Abhilasha S Bhasin, Virendra Singh
Published: 1 January 2011
Indian journal of palliative care, Volume 17, pp 70-73; https://doi.org/10.4103/0973-1075.78453

Abstract:
Palliative care means providing support and care for patients with life-threatening or debilitating illness so that they can live their life as comfortably as possible. The fact that cure is no longer a reality does not mean that care cannot be made available. Partial maxillectomy defect presents a prosthodontic challenge in terms of re-establishing oronasal separation. Such defect has direct effect on cosmetic, function and psychology of the patient. This article describes step by step clinical and laboratory procedures involved in the rehabilitation of a hemimaxillectomy patient, using a definitive closed hollow bulb obturator, which improved his physical, emotional, functional, social and spiritual needs.
, E. Richard Hughes, Raj Kumar Singh, Pramita Suwal, Prakash Kumar Parajuli, Pragya Shrestha, , Galav Adhikari
Published: 27 September 2015
Case Reports in Dentistry, Volume 2015, pp 1-5; https://doi.org/10.1155/2015/504561

Abstract:
Purpose.Closed hollow bulb obturators are used for the rehabilitation of postmaxillectomy patients. However, the time consuming process, complexity of fabrication, water leakage, and discoloration are notable disadvantages of this technique. This paper describes a clinical report of fabricating closed hollow bulb obturator using a single flask and one time processing method for an acquired maxillary defect. Hard thermoplastic resin sheet has been used for the fabrication of hollow bulb part of the obturator.Method.After fabrication of master cast conventionally, bulb and lid part of the defect were formed separately and joined by autopolymerizing acrylic resin to form one sized smaller hollow body. During packing procedure, the defect area was loaded with heat polymerizing acrylic resin and then previously fabricated smaller hollow body was adapted over it. The whole area was then loaded with heat cure acrylic. Further processes were carried out conventionally.Conclusion.This technique uses single flask which reduces laboratory time and makes the procedure simple. The thickness of hollow bulb can be controlled and light weight closed hollow bulb prosthesis can be fabricated. It also minimizes the disadvantages of closed hollow bulb obturator such as water leakage, bacterial infection, and discoloration.
Khadija El Assraoui, Kanza Mrhar, Rajae Zeroual, Khadija Kaoun, Samira Bellemkhannate
European Journal of Dental and Oral Health, Volume 2, pp 23-26; https://doi.org/10.24018/ejdent.2021.2.2.46

Abstract:
Patients with maxillectomy face problems with speech, swallowing, chewing and appearance. These defects are prosthetically rehabilitated with obturators that prevent oronasal communication, restoring function and social reintegration. An obturator must be light-weight, tight, easy to make and low cost. This article describes a simplified technique for fabrication of an acrylic hollow bulb obturator in two pieces using single flask. The prosthesis is made entirely of heat cure acrylic resin. The two parts of the obturator are sealed with the self-curing resin.
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