Abstract
Impression making is not only important but is also the most significant step in the fabrication of any fixed or removable prosthesis. Proper impression making may be hindered by certain pathologic conditions. Reduced mouth opening is one of the common mechanical obstructions for proper orientation of the impression tray in the patient's mouth. In patients with trismus induced by submucous fibrosis, the procedure may be even more difficult to carry out because of reduced tissue resiliency and obliteration of vestibular spaces. Use of sectional trays offers one of the alternatives to overcome the problem of restricted mouth opening. Fabrication of customized impression trays according to the patient dentition improves the accuracy of impression making. The present case reports describe the fabrication of sectional custom trays designed for dentulous patients with chronic tobacco-induced submucous fibrosis.
Highlights
Reduced mouth opening poses a challenge and is often a daunting task for the operator to perform any intraoral procedures
One of the most commonly observed pathologies associated with limited mouth opening is oral submucous fibrosis
Impression making in patients that planned for fixed or removable partial denture with restricted mouth opening is a challenging task as it requires more accuracy and precision
Summary
Reduced mouth opening poses a challenge and is often a daunting task for the operator to perform any intraoral procedures This problem has been associated commonly with orofacial cancer surgeries, scleroderma, traumatic injuries, temporomandibular joint disorders, oral submucous fibrosis, and so forth. In 1994 [1], reported and named this condition as “atrophia idiopathica (tropica) mucosae oris” involving oral mucosa, palate, and pillars of the fauces Later, it was termed as oral sub mucous fibrosis. Formation of fibrous bands in sub mucous connective tissue was reported to be the root cause behind gradual reduction in mouth opening. Prosthetic intervention for these patients entails an accurate impression of the patient’s mouth. Present case reports describe simple and economic methods of fabrication of two-piece custom sectional trays for patients with oral sub mucous fibrosis
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