Tehran University of Medical Sciences

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Using Bar and Ball Attachments in Maxillary and Mandibular Implant-Supported Overdentures in a Patient With Adenoid Cystic Carcinoma Associated With Microstomia: A Clinical Report Publisher Pubmed



Bahrami M1 ; Alsharbaty MH2
Authors
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Authors Affiliations
  1. 1. Prosthodontics and Implant Department, Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Prosthodontics and Implant Department, Tehran University of Medical Sciences, Tehran, Iran

Source: International Journal of Prosthodontics Published:2017


Abstract

Many clinical studies and literature reviews have suggested that bar and ball attachments in maxillary and mandibular implant-supported overdentures (ISOs) should be indicated only when there is sufficient interocclusal space (IOS; minimum = 30 mm). The aim of this clinical report was to present the prosthetic rehabilitation of a patient with adenoid cystic carcinoma associated with microstomia due to radiotherapy (IOS = 23 mm). ISOs offer superior retention and greater stability than conventional obturators, so that base extensions were kept to the minimum. Placing the balls parallel to the prosthesis path of insertion is much easier with this treatment modality. © 2017 by Quintessence Publishing Co Inc.