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selective pressure impression technique

The border molding was done with low fusing impression compound (DPI Pinnacle) by sectional method. The theory of mini-mal‐pressure employs the principles of mucostatics. Although now seldom used for impression making, modifications of this method do have practical value as a technique for relin-ing intaglio denture surfaces. 8 This principle of impression making is based on the belief that the mucosa over the ridge is best able to withstand pressure, whereas that covering the midline is thin and contains very little sub mucosal tissue. Selective- pressure theory. Based on thorough understanding of the anatomy & physiology of the basal seat & surrounding area. This article describes a method of making impressions for tooth-mucosa–supported removable par- tial dentures using a single impression procedure. for selective pressure impressions for total dentures’ treat-ment by patients who had different kind of localization and abnormalities of the thickness and mobility of the alveolar ridges’ mucosa. 1 was checked for adaptation and extension and modified whenever required. Corrected Cast procedure. The techniques can be grouped into mucostatic, mucocompressive, selective pressure, functional, and neutral zone impression techniques. Firm healthy Mucosal covering over the ridge B. Flabby ridges C. Knife edge with movable mucosa D. When sharp bony spicules are present in the ridge Ans: A. all cases. This impression philosophy is credited to Boucher5 and is based on a histologic under- standing of the supporting tissues. PURPOSE The selective impression technique is recommended for removable prosthodontics. Materials used for disinfection of impressions are summarized in Table 2. The shortcomings of this principle gave rise to the mucostatic technique by Hary L. Page with high regard for tissue health. The above results suggest that making the final impression for the denture using the selective pressure technique, with consideration given to the pressure dynamic, may lead to a good outcome in terms of preservation of the alveolar ridge. However on the basis of over all results neutral zone seemed to have slightdenture16'20lective pressure impression technique (Fig. It is important to thoroughly examine the patient’s mouth and select the most appropriate impression technique (1,6). The selective-pressure impression technique combines aspects of both techniques, as pressure is applied to certain tissues while other areas are captured with minimal pressure. Definite pressure impression technique for implant‐retained mandibular overdenture is associated with minimal denture deformation during function when compared with mucostatic and selective pressure techniques. Selective Pressure Impression Technique The special tray fabricated on cast No. Various techniques have been used to make complete denture impressions, including mucostatic, mucocompressive, selective pressure, functional, and neutral zone impressions. Altered cast is **most commonly needed for. This impression philosophy is credited to Boucher 5 and is based on a histologic understanding of the supporting tissues. the selective-pressure impression technique is most accepted. In the first theory, attempts are made to capture the intraoral tissues in a force‐loaded state. These results provide unique insight into the selective impression technique. The impression technique plays the substantial role. Part III investigates the specific distribution of pressure within the impression technique used for the clinical trial of Part IV, concluding that the pressure was distributed in a specific and useful way, which was clinically significant. Advocated by carl ‘o’ Boucher in 1951. Green Brothers were the first to introduce the principle of muco compression during impression technique. Since no pressure is applied, Tissue health is preserved.Hence, it is also known as Minimal pressure technique. This concept combines the principles of both pressure & minimal pressure techniques. The selective pressure technique is based on the selective pressure theory, which was proposed by Carl O. Boucher. Basal seat area can be divided on the basis of capacity to bear loads into; Final impression materials for complete denture construction include the following: zinc oxide eugenol pastes (ZOE), elastomeric impression materials and tissue conditioners [6] [7]. This feature is not available right now. - I). Reinforcement of the denture base over the implants may be recommended to increase resistance of fracture when mucostatic or selective pressure impression technique is used. Firm healthy mucosal covering over the ridge Mucostatic Impression Technique is indicated for options B,C and D. impressions, including mucostatic mucocompressive, , selective pressure func- , tional, and neutral zone impressions. Technique:. The maxillary borders were recorded by selective pressure impression technique using green stick compound (Figure 13). Selective pressure theory: Advocated by Boucher in 1950, it combines the principles of both pressure and minimal pressure techniques. It combines the principles of both mucocompressive and minimal-pressure techniques, which were proposed by Carl O. Boucher [2]. Volume … 2015 Oct;59(4):254-61. doi: 10.1016/j.jpor.2015.07.002. The techniques used for making final impression The basic differences in techniques for final impressions can be resolved as those that record the soft tissues in a: Functional position (Closed mouth technique, Pressure technique) Rest position Nonpressure technique (Passive technique, Mucostatic technique). Please try again later. Physiological impression techniques record the edentulous ridge in its functional form by placing a load on the impression tray during the impression procedure (McLean-Hindels method, functional reline impression technique, and fluid wax method). Selective pressure technique. A good impression plays an important role in the successful treatment in cases of resorbed mandibular ridges where there is inadequate tissue to fulfil the requirement of retention, stability and support . 72.1% of the practitioners use physiological method (intra-oral technique) to record posterior palatal seal while 27.9 of them use arbitrary scraping method (extra-oral technique). 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