Corrective Primary Impression Technique

The article describes a simple, quick and corrective technique for making the preliminary impression. It records the extensions better as compared to the impressions made using only impression compound. This technique is accurate and gives properly extended custom tray. Any deficiencies seen in the compound primary impression are corrected using this technique hence, this technique is called as a “corrective primary impression technique”

Custom sectional impression trays with interlocking type handle for microstomia patients

Making impressions in microstomia patients is often cumbersome. A modification of standard impression procedure is often necessary while treating such patients. This article describes the fabrication of a custom sectional impression tray with interlocking type of a handle for definitive impression procedures in a microstomia patient

Restricted mouth opening and its definitive management: A literature review

Purpose: This review was intended to discuss the various possible modifications suggested in the literature for prosthetic steps and surgical corrective procedures in nonresponding or complicated cases during rehabilitation of patients with restricted mouth opening. Material and Methods: Medline, PubMed, and Google were searched electronically for articles using keywords: microstomia and treatment options for restricted mouth opening. The various articles on prosthodontic rehabilitation in microstomia were segregated. From these, various modifications in the prosthetic steps were reviewed. Results: Oral hygiene maintenance is difficult for patient either due to limited access or due to associated lack of manual dexterity, so dental decay and periodontal problems are more extensive in such patients; hence, tooth loss is a common finding. All prosthetic procedures require wide mouth opening to carry out various steps, starting from tray placement during impression making to the final prosthesis insertion, especially removable prosthesis. Various prosthetic modifications given by authors are included in this review for each step in prosthodontic management. A total of eight stock tray designs, 12 custom tray designs, and 17 removable prosthesis designs are discussed along with fixed (either tooth-supported or implant-supported) and maxillofacial prosthesis. However, some patients require surgical intervention also for the correction of microstomia either for function or for esthetic purpose before prosthetic rehabilitation and are also enumerated here. Conclusion: Among all prosthetic restorative options, removable prosthesis is most difficult for dentist to fabricate as conventional methods are either very difficult or impossible to apply. To get a more accurate final prosthesis, we need to modify these steps according to the existing case. Several modifications available are discussed here which can help while managing these patients

A Physiologic Impression Technique for Resorbed Mandibular Ridges

Making a definitive impression of an edentulous arch can be challenging when the residual ridges present with less-than-ideal conditions. A procedure is described for the final impression of severely atrophied mandibular residual ridges especially for mandibular edentulous ridges with high muscle attachments. The objective is to develop a physiologic impression with maximum support of both hard and soft tissues. Tissues could be displaced during impression making and result in subsequent pathology, or they could be placed i.e. compression within the physiologic limits in order to maximize the support from the edentulous ridge. Close adaptation to the basal seat contributes to stability. This technique emphasizes on the concept of tissue placement and determination of the extent of mucobuccal denture extension which is achieved by the use of a close fitting tray and a viscous impression material. Final impression is made with an elastomeric impression material to capture the anatomic details of the tissues