Use of orthodontic expansion screw in fabricating section custom trays

Innovative use of Single-stage Secondary Impression in treating Oral Rigidity due to Submucous Fibrosis

“…[2][3][4][5][6][7] But the main shortcoming of such sectional impression techniques is the difficulty in obtaining an adequate peripheral seal as the impression is made in two halves and the seal breaks in most cases. The protocol explained in this article proposes a method by which a single-stage impression can be made preserving the peripheral seal with the impression made as a whole.…”

“…Oral submucous fibrosis is a condition that restricts opening of mouth, thereby restricting many of their oral functions. This condition was described by Pindborg 1 as "an insidious, chronic disease affecting any part of the oral cavity and sometimes the pharynx, occasionally preceded by and/or associated with vesicle formation, it is always associated with juxta-epithelial inflammatory reaction followed by fibroelastic change of the lamina propria, 5 and Lego blocks. 6,7 Complete peripheral seal cannot be evaluated, especially in the upper arch, as the impression is sectional.…”

Prosthetic Rehabilitation of a Patient with Congenital Oro-Nasal Defect with an Interim Prosthesis: A Case Report

“…Making the impression presents the initial difficulty in prosthetic rehabilitation. Several techniques based on flexible, modified standard trays and sectioned trays have been proposed [1][2][3][4][5][6]. We present here a case of prosthetic rehabilitation for the patient with congenital oro-nasal defect with an interim prosthesis.…”

Sectional Impression Tray and Sectional Denture for a Microstomia Patient

“…Management includes flexible modified stock trays and sectional trays. 25,32,[36][37][38][39][40][41] Sectional and collapsible dentures have been described for these patients. A review of the literature shows that different mechanisms for connecting sectional dentures include cast Co-Cr hinges, 23,28,29 swing-lock attachments, 22,30 stud attachments, 31 orthodontic expansion screws, 41 pins, 25 bolts, telescope system, 22 rods, 38 clasps, 23,24 cast locking recesses, 24 and magnets.…”

“…25,32,[36][37][38][39][40][41] Sectional and collapsible dentures have been described for these patients. A review of the literature shows that different mechanisms for connecting sectional dentures include cast Co-Cr hinges, 23,28,29 swing-lock attachments, 22,30 stud attachments, 31 orthodontic expansion screws, 41 pins, 25 bolts, telescope system, 22 rods, 38 clasps, 23,24 cast locking recesses, 24 and magnets. 27,32,33 The purpose of this article is to describe the clinical management of an edentulous patient with microstomia induced by scleroderma.…”