Hypermobile ridges or flabby edentulous ridges are a common occurrence in edentulous patients. The literature reveals that the mucostatic impression technique is one of the treatment options in this scenario. Conventional mucostatic methods like employing a window tray technique, multiple relief holes, or double spacers can be employed when the flabby tissue is localized. But in cases of generalized flabbiness of the residual ridge, even the manual placement and manipulation of a custom tray may distort the tissues, violating the principle of mucostatics. This presentation is a clinical report of a patient with a generalized flabby maxillary edentulous ridge opposing a partially edentulous mandibular arch. A split two-part special tray using the principle of magnetic attraction for self retention was fabricated. This self retention ruled out finger pressure during impression making, helping to achieve mucostatics.
Complete dentures may suffer from a lack of proper border extension, but most important of all is the posterior palatal extension on maxillary complete dentures. The posterior border terminates on a surface that is movable in varying degrees and not at a turn of tissue as are the other denture borders. Locating and designing of posterior palatal seal after thorough understanding of the anatomic and physiological boundaries of this dynamic region greatly enhances border seal and increases maxillary complete denture retention. The diagnostic evaluation and placement of posterior seal are often given only minor attention in complete denture construction. This article reviews the importance of the posterior palatal seal with regard to its anatomy, location, design and placement.
Repairs of the cleft nose, lip, and palatal deformity remain challenging endeavors for reconstructive surgeons. Postsurgical nasomaxillary hypoplasia is a common finding in patients with extensive clefts. This complex deformity has a pronounced impact on the social behavior and self image of the subject. Esthetic and functional rehabilitation of this postsurgical defect is scarcely reported in the literature. Support in the form of prostheses or stents to prevent tissue collapse is usually required in these patients following surgery. This clinical case presentation discusses the fabrication of an internal nasal stent for a cleft nose, lip, and palate patient following surgical reconstruction. Two prostheses using two prosthetic materials (Polymethyl methacrylate, flexible resin) were prepared to compare their efficacy. The final prostheses improved the patient's appearance, making the postsurgical defect less conspicuous.
Restricted mouth opening of a patient presents a great challenge in prosthodontic rehabilitation, especially with complete dentures. Making an adequate border molded secondary impression is crucial in the success of such prostheses. Numerous techniques exist for making impressions in cases of microstomia. All of them involve sectional impressions and extraoral reorientation of the segments. Peripheral seal is compromised in these procedures. This article is laid out to explain how preserving border seal by using single-stage impression is by far the best technique found in the Prosthodontic literature to eliminate the cumbersome sectional impression method. A new method of preserving the seal by means of an impression recorded at a single stage is proposed.
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