Intra-oral bony growths of all types, present a clinical challenge for the dental team attempting to capture accurate detail for final impressions of crown and bridge, removable prosthetics, oral appliances, accurate opposing models, study models, and whitening trays. Stock impression trays often can’t be seated to depth, because they get hung up on these bony anatomical variants, or the bony protuberances can cause pain during the impressioning procedure, as there is often only a thin membrane of covering tissue which is easily irritated. Lingual tori may also limit the space for the tongue and can result in speech impediment. Even though these bony areas can create a clinical challenge with impressioning, these areas are prime sites for harvesting autogenous bone for bone grafting of dental implants and can be used for multiple reconstructive procedures such as nasal reconstruction. Continue reading
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Precision Attachments
In dentistry, precision attachments are the functional mechanical parts of the removable partial denture made of plastic, metal or a combination of both. Precision attachment partial dentures can be used to restore arches where there are not enough teeth for fixed bridgework. They consist of two parts referred as the ‘male’ part that is fixed to a crown inside the patient’s mouth and a ‘female’ part which holds the partial denture. The male is machined by the manufacturer to fit the female with such precision that any male out of the box will fit any female with an exact degree of accuracy. All of the precision attachments in a partial denture are positioned so that they are exactly parallel to each other. The patient can insert and remove the partial dentures and the aim of the precision attachment is to give the patient maximum comfort and ease while wearing, inserting or removing. Continue reading